elite - txcommunications.com · accommodated in a elite cabinet giving 2048 ports without blocking...

EliteDigital Switching System

General Description

Date: February 2002TX-Elite-Sys-GD-001

The Information contained is subject to change without notice.No part of this document may be reproduced or disturbed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the TX/Communications Canada Inc.

��TX/Communications Canada Inc. Elite General Description

2

Introduction

This section provides general information about the capabilities, design, and the operation of the ELITECentral Office switching system.

ELITE is a switching system for Public application. The basic system is a digital switching exchange,providing connection of pulse code modulation (PCM) voice and data paths between ports of varioustypes, under centralized stored program control.

Each shelf of ELITE can provide up to 512 ports (Analog or Digital). Up to four shelves can beaccommodated in a ELITE cabinet giving 2048 ports without blocking or concentration.

Up to 64 shelves can be employed in a system, resulting in 32K Analog/Digital ports.

Different concentrations may be applied to each shelf according to the nature of traffic that is handled by aspecific shelf.

Up to 16,384 Erlang traffic can be handled by a fully loaded system resulting 300,000 BHCA @ 100 Sec.Call average Holding Time (for more details, refer to Appendix D).

The Basic ELITE switch is equipped with one Shelf which includes one MCC (Main CommunicationController), one PCC (Peripheral Communication Controller) and one PSU (Power Supply Unit).

Redundancy for the above-mentioned cards is available on a full Hot Stand-by basis.

Universal Digital and Analog Interface cards are employed to accommodate all different Digital and Analogapplications.

The ULI (Universal Line Interface) is equipped with a processor to control all types of Analog ports, suchas Ordinary Subscriber Lines, Metering Subscriber Lines, Coin Box, E&M, DID, DOD and CO Trunks withall the standard signaling.

Also there is an option to employ one ULI card in the Line shelf as redundant for all active ULI cards ofthat particular shelf. This option could be used on a system basis as well.Each ULI card can accommodate up to 32 Analog ports.

TX/Communications Canada Inc. Elite General Description

3

The UDI (Universal Digital Interface) is also a processor equipped card to control all types of Digital portssuch as E1, T1, J1, ISDN-BRI, ISDN-PRI, with all types of signaling such as CCS#7, CCS#5, V5.2, CAS,R1, R2.

Each UDI card can accommodate two Link Modules, each of which can interface to:

- One ISDN-PRI,- One 2Mbps Link,- Four ISDN-BRI, U Interface (2B1Q)- Common Channel Signaling N0.7 Interface- HDSL Primary Rate Interface- LAN/WAN Interface- Nx64KbpsSerial Interface(RS-232 or other)- ISDN H0 rate physical Interface- Modem Pool- X.25 Packet Switching for B channel, HDLC or other- 16 way Conferencing node(or higher)- Voice Messaging node- Extra Memory Module- UDI Tester Module

The unique design of the ELITE allows the use of the first Shelf as a general line shelf for UniversalInterface Cards and provides up to 512 ports when no other shelves are installed. Using just one shelfgives you the capability to have 1024 ports logically available.

The PCM switching network of the ELITE system is a distributed configuration. Each shelf has its ownresident PCM switch and all line shelves are connected together by passive inter-shelf highways with 512time slots providing non-blocking switching. In addition, one extra PCM highway is available for valueadded features without sacrificing capacity.

Different degrees of concentration (1:1, 3:4, 1:2, and 1:4) are available to have more ports in service.

The equipment is designed in modular units using standard components and connections for ease ofinstallation, maintenance and unpredicted enhancement. Plug-in printed circuit board (PCB) cards areused for all interface types and common control equipment.

All interconnections between shelves are by twisted pair (Differential) plugs and jacks.

The ELITE system is available with a standard software package that is field configurable for variousapplications.

The ELITE provides full or partial redundancy options. Full redundancy can be obtained by addingadditional MCC, PCC and PSU to the Global Shelf. Partial redundancy can have one or more of thesethree cards in any combination.

Redundancy can be added to ULI ports on a 1:n basis.


4

Specifications:

• PCM-TDM Technique

• SPC ( Stored Program Control)

• ITU-T, Bellcore, ETSI UL1459, FCC, UL and CSA Conformity

• HW/SW fully modular and scalable

• 16K x 16K non-blocking, full available Switching Network

• Universal Slot, Universal Shelf, Universal Cabinet

• Five Cards Variety ( MCC, PCC, PSU, ULI, UDI )

• Inter-System Communications on Redundant 2Mbps differential (RS-422) HDLC and LVDS Links

• Intelligence : On all Control, Power/Ring Supply and Universal (Analog/Digital Interface) Cards

• Customized Application Capability due to the use of FPGA, CPLD, DSP on all Cards

• 15 External built-in Alarm Sensors per shelf

• Temperature measurement of each shelf:- Air temperature intake- Air temperature exhaust- Ambient temperature- Thermal shutdown

• Alarm input to detect motion, water, open door, vibration, broken, fire, etc.(Sensors available in industry)


5

• Capacity : 32K Ports expandable to 64K Ports including WLL Ports

• Caller ID feature for all Lines complies with ETSI and Bellcore

• Message Waiting feature for all Lines complies with ETSI and Bellcore

• Microprocessors : 16, 32, 64 bits wide powerful Processors

@ [25MHz (MC68302, IMP), 100MHz (i960, RISC), 200 MHz (Power QUICC II, RISC)]

• 1 Erlang traffic/Port, Tone (DTMF, R1, R2) Processing Capability

• Redundancy capability for Port Interface Cards.

• BHCA: 300,000 @ 100 Sec. Average Holding Time

• Interfaces :

Analog: All types of Analog Lines and Trunks

Digital: E1, T1, J1, ISDN-PRA, and ISDN-BRA

Transmission Rates: E1, E3, STM1and OC3

Network: 10BaseT, 100BaseT Ethernet Connection Interface

WLL: System Built-in GSM

• Signaling : Loop Start ( 600/900 Ohm ), Ground Start ( 600/900 Ohm ),

Battery Reversal, DTMF, R1, R2, CAS, CCS#5, CCS#7, ISDN-PRI, V5.2

• X Signaling to Y Signaling Converter/Translator

• System Built in WLL based on GSM Standard (Flexibility exists to meet other frequency allocation Plans)

• 155 Mbps Point to Point ADM (Add-Drop Multiplexing) interface on SDH Ring

• Highly reliable common control equipment with extensive fault detection and recovery capabilities and component level troubleshooting

• Built in Remote maintenance facility


6

• Built in Remote LCD display on remote location

• Multiple ISDN Operators Console operation

• Blind ISDN Operator Console

• Voice recording capability on all consoles

• Built in directory

• Management monitoring and control features

• Flexible Numbering Plan

• 2 Hours of Digital Voice intercept Messaging per shelf

• 80 Hours Voice mail Capability per shelf

• Automatic Voice recording for malicious calls

• Interactive Voice Response (I.V.R)

• Three Way Conference Call for all lines with injection of any separate message to each of the parties on the conference call without any interruption of

live calls.

• 32 Channel ADPCM Voice Compression/Decompression on IVM (IntegratedVoice Mail) Card

• Stratum 4 or Stratum 3 Clock

• Application : Central Office, Transit Switch, Local/Tandem Switch, Rural Exchange, Intermediate Gateway Switch

• Power Consumption : Less than 0.5W/Port @ High traffic loads

• Built in 33.6K Modem on PCC, MCC and LCD Module

• Voice scrambling option availabl

• Built in RS232 serial port on all ULI and UDI cards for future applications


7

WLL

V5.2

ISDN (BRA , S/T)

ISDN (PRA)

ISDN (BRA , U)

ACC

ESS

NETW

ORK

ANALOG

...........

V5.2

............

V5.2

PSTN E3

OC3/STM1/ATM

E1/T1/J1

ISDN

............

CCSNO7,R2,R1,CAS,V5.2 . . .

SwitchRemote

Infinity............

...........

ISDN

POTS

Switch

8K x 64Kbps

Elite

ISDN

ISDN

Elite PSTN and POTS Connections

10GB80h

VMail

..........

.

...........

..........

.

...........

...........


8

ELITE

CCSNo7, R2,R1,CAS

............

............

............

ISDN

ISDN

. . .

. . .

E1

SYSTEM CAPACITY (EXAMPLE)

ORDINARY SUBSCRIBERS :20KISDN SUBSCRIBERS : 1K

PSTN E1 TRUNKS : 3K

PSTN

Elite as a Central Office


9

PSU

ELITE

PSU

MC

C

PCC

PCC

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

ULI

MC

C

ULI

SEC

PRI

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2124 25 2622,23

Elite Single Shelf

544 SubscribersCapacity :

PRI

PRI

PRI

SEC

UDI

UDI

ULI

L C D

+3.3 V

+5 V

+12 V

-12 V

Ring Gen.Int.

Ext.

+3.3 V

+5 V

+12 V

-12 V

Ring Gen.Int.

Ext.

120 E1/T1 Channels (CCS#7,ISDN-PRA,V5.2,R1,R2,CCS5)

Main SW

Run

Minor

Reset

Major


10

. . .

2

Elite as a Local / Transit Exchange

E1/T1

............

. . .

...

......

...

...

......

...

20K PORTS256 E1/T1( 7,680 E1/T1 CHANNELS )

ElitePSTN

1E1/T1

256E1/T1


11

PSU

ELITE

PSU

MCC

PCC

PCC

MCC

SEC

PRI

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2124 25 2622,23

Capacity :

PRI

PRI

PRI

SEC

L C D

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

PCC

PCC

SEC

SEC

Elite Single Shelf Transit Exchange

960 E1/T1 Channels (CCS#7,ISDN-PRA,V5.2,R1,R2,CCS5)

Fully Hot Stand-by Redundant

+3.3 V

+5 V

+12 V

-12 V

Ring Gen.Int.

Ext.

Ring Gen.Int.

Ext.

-12 V

+12 V

+3.3 V

+5 V

Main SW

Run

Minor

Major

Reset


12

Ext.

UD

I

PR

I

826

UD

I

UD

IU

DI

Major

+5 V

Ext.

-12 VU

DI

15 1713

24 2

+12 V

PR

I

7 102

UD

I

UD

I

UD

I

UD

I

UD

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4 11

Ext.

+12 V

SE

C

+3.3 V

26 9

1913

Int.

UD

I

UD

I

UD

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+3.3 V

SE

C

PC

C

UD

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UD

I PSU

16 21

4

UD

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UD

IPSU

84 18

PC

C

Ring Gen. Ring Gen.

Int.

-12 V

1

UD

I

UD

I

3 201

25 17

UD

I

16

SE

CP

CC

UD

I

15

Run

PR

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SE

C

PSU

11

UD

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1911 12

+5 V

-12 V

PSU

+5 V+5 V

+3.3 V

Ring Gen.

UD

I

UD

I

+12 V

20

+12 V

UD

I

UD

I12 18

6

UD

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-12 V

UD

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PC

C

Int.

PR

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+3.3 V

-12 V

2

Main SW

-12 V

Ring Gen.

UD

I

UD

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11

14 18

Ring Gen.

SE

C

1

+12 V

-12 V

PC

C

9 19

UD

I

UD

I

10

Ext.

PR

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UD

I

UD

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4

10

UD

I PSU

-12 V

Ext.

9

+5 V

PR

I

187

+3.3 V

+12 V

UD

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2 1424

12 20

+5 V

20 21

Int.

UD

I

UD

I

Ext.

25

+5 V

22,23

5

Int.

UD

IExt.

UD

I

26

UD

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Int.

UD

I

UD

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16

Minor

L C D

1 3 21

PR

I

3

UD

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UD

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Ring Gen.

UD

I

UD

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5 10

22,23

SE

C

UD

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65 13

5 8624

16

PC

C

UD

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+12 V

+5 V

UD

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+12 V

13

Ring Gen.

+3.3 V

Int.

SE

C

UD

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625

15

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+3.3 V

22,23 24 17

UD

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UD

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UD

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UD

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UD

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1412

PC

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326

19

7 9

+3.3 V

PSU

PSU

17

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UD

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Reset

Int.

PC

C

87

UD

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25 14 15

PSU

UD

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Ext.

2122,23

SE

C

UD

I

SE

CM

CC

PR

I MC

C

PC

C

PC

C

Elite Single Cabinet Transit Switch

PC

C

ELITE

Capacity :1920 E1/T1/J1(CCS#7,V5.2,R1,R2,CAS,...)


13

Line Shelf1

Line Shelf2

Line Shelf64

. .

.

Elite

Global Shelf8 Mbps

8 Mbps

8 Mbps

OC3 INF.OC3/STM1/ATM

PSTN

8K x 64Kbps8K x 64Kbps

Elite High Speed Network Connection


14

Elite

Elite as a Core in Access Network

V5.2

V5.2

V5.2

. . .CCSNo7, R2,R1,CAS

E1/T1

RemoteSwitch

RemoteSwitch

RemoteSwitch

Acce

ssPO

TS

PSTN

............

............

. . .

............

............

. . .

............

............

. . .

WLL

BSC

................

................

................


15

+12 V

Ext.

15

26

10 13

PSU

SE

C

Ext.

+3.3 V

PCC

Ext.

8 17 19

PR

I

2

Ring Gen.

64

PSU

PCC

PR

IP

RI

7

11

16

+5 V

16

26 17

Ext.

-12 V

22,23

2

Int.

10

4

1

+3.3 V

-12 V

+12 V

Main S W

7

PSU

-12 V

7

20

Ext.

1

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20

25

+3.3 V

Int.

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732

3

1

-12 V

Ext.

26

Ring Gen.

20

PR

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11

+5 V

12

PSU

SE

C

15

Major

+5 V

14

21

+3.3 V

8

L C D

Ring Gen.

+3.3 V

+5 V

9

25

5

+5 V

+12 V

Ring Gen.

4

13

119

19

17

9

+12 V

-12 V

21

25

24

5

15

Int.

21

5

Ext.

6

SE

C

10

PSU

-12 V

SE

C

11

PCC

-12 V

PSU

PCC

SE

C

PCC

R ing Gen.

19

19

5

PSU

PCC

12

4 17

+12 V

20

8

15

166

22,23

24

13

-12 V

Run

22,23

Minor

2

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8

18

26

Ring Gen.Int.

1

+5 V

24

Int.

12

PR

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PSU

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13

+12 V

Ring Gen.

14

+3.3 V

18

+5 V

PCC

16

14

+3.3 V

+5 V

3

10

SE

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18

22,23

PR

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SE

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21

PR

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24

+12 V

3

Int.

6

ELITE

+3.3 V

Ext.

25

+12 V

149

12

18

PR

IPC

C

ULI

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6

Int.

13

-12 V

L C D

7

-12 V

7

Main S W

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26

ELITE

124

19

10

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13

15

1917

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3 8

20

198

+12 V

+3.3 V

PR

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10

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125

19

4

26 3

10

8

12

+12 V

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26

Ring Gen.

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1

16

15

PR

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22,23 3

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5

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7

Int.

17

PR

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Ext.

9

24

18

+12 V

PSU

11

PSU

+5 V

+5 V

22,23

PCC

PSU

5

PCC

6

21

+12 V

+5 V

+5 V

Ext.

126

PR

I

14 18

Int.

8

+12 V

25 16

+12 V

+3.3 V+3.3 V

PCC

+5 V

+3.3 V

124

Ext.

-12 V

9 11

Ring Gen.

Reset

UDI

+12 V

25

PSU

Int.

Minor

PCC

SE

CR ing Gen.

+5 V

21

PR

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11

Ring Gen.

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PR

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14

18

14

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C

5

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20

2

-12 V

Ext.

SE

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PCC

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2

22,23

13

16

17

-12 V

24

1725

+3.3 V

14

3

Ext.

7

PCC

4

2

Ext.

16

Ring Gen.

21

9

+3.3 V

1222,23

+5 V

PCC

PSU

Run

-12 V

15

PSU

25

9

+5 V

2

20

Ext.

6

21

+12 V

Int.

R ing Gen.

-12 V

+3.3 VS

EC

PSU

+3.3 V

1310

SE

C

PR

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6

11

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20

1 4

PR

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ULI

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6

Int.

13

-12 V

L C D

7

-12 V

7

Main S W

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26

ELITE

124

19

10

15

13

15

1917

18

3 8

20

198

+12 V

+3.3 V

PR

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10

Int.

125

19

4

26 3

10

8

12

+12 V

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26

Ring Gen.

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1

16

15

PR

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22,23 3

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5

SE

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7

Int.

17

PR

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Ext.

9

24

18

+12 V

PSU

11

PSU

+5 V

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22,23

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5

PCC

6

21

+12 V

+5 V

+5 V

Ext.

126

PR

I

14 18

Int.

8

+12 V

25 16

+12 V

+3.3 V+3.3 V

PCC

+5 V

+3.3 V

124

Ext.

-12 V

9 11

Ring Gen.

Reset

UDI

+12 V

25

PSU

Int.

Minor

PCC

SE

C

R ing Gen.

+5 V

21

PR

I

11

Ring Gen.

Ext.

PR

I

14

18

14

Int.

SE

C

5

Int.

20

2

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Ext.

SE

C

PCC

SE

C

R ing Gen.

2

22,23

13

16

17

-12 V

24

1725

+3.3 V

14

3

Ext.

7

PCC

4

2

Ext.

16

Ring Gen.

21

9

+3.3 V

1222,23

+5 V

PCC

PSU

Run

-12 V

15

PSU

25

9

+5 V

2

20

Ext.

6

21

+12 V

Int.

R ing Gen.

-12 V

+3.3 V

SE

C

PSU

+3.3 V

1310

SE

C

PR

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6

11

Major

20

1 4

PR

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ULI

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7

11

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+12 V

-12 V

9

16

Int.

26

19

20

10

19

ULI

ULI

25

Ext.

13

SE

C

21

Reset

+3.3 V +3.3 V

14

1

22,23

22,23

ULI

ULI

21

21

PCC

PCC

7

Ring Gen.

8

19

4

ELITE

ULI

ULI

Run

2

32

SE

C

+5 V

Ring Gen.

11

+12 V

PR

I

26

Ext.

+5 V

19

L C D

ULI

ULI

ULI

PR

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SE

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6

Ring Gen.

Int.

18

Minor

Ext.

PSU

PR

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+12 V

3

13

12

26

ULI

ULI

ULI

ULI

ULI

ULI

PSU

14

Ext.

R ing Gen.

9

16

18

+5 V +5 V

1210

-12 V

ULI

10

Ext.

20

16

14

Int.

24

12

18

-12 V

ULI

ULI

SE

C

15

PCC

+3.3 V

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25

PSU

Int.

13

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13

2

Ext.

SE

C

PSU

1

5

168 17

Main S W

ULI

ULI

ULI

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PR

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1

+3.3 V

+5 V

25

2

+12 V

+5 V

11

+12 V

18

Ext.

PR

I

I nt.

+3.3 V

+5 V

SE

C

25

+3.3 V

5

10

7

ULI

ULI

ULI

20

-12 V

22,23

17

24

22,23

20

8

+12 V

PSU

24

PR

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1

5

+3.3 V

6

ULI

ULI

ULI

ULI

9

14

Ext.

+12 V

+5 V

PSU

SE

C

3

-12 V

ULI

ULI

ULI

ULI

ULI

Major

PSU

Ring Gen.

12

-12 V

Int.Int.

21

9

+12 V

ULI

ULI PSU

4

PCC

R ing Gen.

Ring Gen.

24

26

7

ULI

11

Int.

+3.3 V

17

5

6

1715

PCC

R ing Gen.

8

15

15

SE

C

UDI

UDI

MCC

UDI

PCC

UDI

SE

CMC

C

PR

IMC

C

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

UDI

Capacity : 7K Lines, 1K E1/T1/J1 Long Haul (CCS#7,R2,R1,CAS,V5.2,...)

Elite Multi Cabinets Public Switch


16

Design Concept

The concept behind the Elite design is to have a system for all applications in PTT Networks.The Modularity, Scalability and Flexibility are three major issues that are considered in this regard.

Basically the system consists of two Logical Blocks:

1. GS ( Global System ) and

2. PBB ( Ports Building Block )

GS (Global system) is physically named GS (Global Shelf) and is the main controller portion of the systemconsisting of MCC, PCCs and PSU. Following is a brief description of the function of each of the cards onGS.

It should be noticed that GS could accommodate Analog and Digital interface cards as long as empty slotsare available there.


17

1.1 MCC (Main Communication Controller):

Specifications:

a. Intel 100MHz i960JT RISC processor.

b. Four HDLC channels, two stand-by backup channels. One active channel is forMCC to PCC communication, and the second active channel is used for MCC toMCC private link.

c. Real Time Clock.

d. Three Serial ports, two of the serial ports can be configured as RS232/RS422.

e. One high speed 9600 baud modem (can be upgraded to 28.8 or 33.6 Kbaud).

f. 128 MB (maximum) system ROM (6 banks SIMM).

g. 128 MB (maximum) system RAM (8 banks SIMM).

h. 64 MB (maximum) PCMCIA Flash memory card, type I.

MCC is the Main Communication Controller of the system, it is equipped with i960 RISC processor @ 100 MHz and communicates to PCCs through a duplicated 2Mbps HDLC link. It is equipped with abuilt in 36.6K modem and a 64 MBPCMCIA flash card.

The MCC can perform active live update system software without interruption. Four banks of flashmemory can be swapped by the software command able to re-map the different SIMMs into the Systemaddress space.


18

1.2 PCC (Peripheral Communication Controller):

Specifications:

- Intel 100MHz i960JT RISC processor.

- Two Motorola MC68302 IMP processors @ 25MHz for controlling HDLCcommunications.

- Four HDLC links, two HDLCs for inter-processor communications, the other twoare used for inter-card communications.

- 512 Time-Slots (4x128 configurable Time Slots) On-shelf PCM switching and 512Time-Slots for Inter-shelf switching.

- Tone generation.

- 64 channel DTMF decoder.

- Three Serial ports, two of the serial ports can be configured as RS232/RS422.

- One high-speed 9600-baud modem (can be upgraded to 28.8 or 33.6 Kbaud).

- Phase Lock Loop for digital trunk clock synchronization.

- 128 MB (maximum) system ROM (6 banks SIMM).

- 128 MB (maximum) system RAM (8 banks SIMM).

- 64 MB (maximum) PCMCIA Flash memory card, type I.

- 1 application dedicated read only PCM High (Broadcast High Way) Way forAnnouncement, Messaging and Paging

- 8184 seconds Tone / Voice Message announcer. The Message voice samplesare stored into a PCMCIA Flash memory, maximum 64 MB.


19

Each of the PCCs (Peripheral Communication Controller) in the Global System is also equipped with onei960 RISC processor @ 100 MHz and two MC68302 RISC processors @ 25 MHz and communicates tothe related PCC on the PBB (Physically named LS: Line Shelf) through the RS-422 Differential HDLC link @ 2Mbps.

The Switching Matrix is built up on the PCCs. Different Tone generation/injection and call conferencing /Voice messaging are done on PCC.

Eight levels of attenuation and A-law/u-law conversion is done by PCC as well.

On each PCC (PCMCIA memory card) there is 512 x 16 Seconds Recorded Messages/Announcementsare available with the variable length option.

The PCCs of both GS and PBB are unique in Hardware and Software. They are configured at thetime of system power up.

Global System

GS

Port Building BlockPBB



. . . . . .

Simplified Architecture of the Elite System

Elite


20

Building Block

Building Block

Building Block512 Ports

512 Ports

512 Ports


Building Block

Building Block


512 Ports

512 Ports

512 PortsBuilding Block

Building Block

Building Block


512 Ports

512 Ports


Building Block

Building Block


512 Ports

512 Ports


PCC

PCC

PCC

PCC

PSU

PSU

Master Communication Controller

Master Communication ControllerMCC :MCC :

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

PCC

GS

Elite Simplified Design ArcitectureGlobal System


21

1.3 PSU (Power Supply Unit):

Specifications:

a. MC68302 Microprocessor operating at 25 MHz clock.b. 1 MB system Flash program memory.c. 256KB system RAM, expandable to 1 MB.d. Two HDLC channels at 2Mbps (1 active and 1 backup).e. 30 VA Ring Generator at 85Vrms output, with 20, 25 or 30Hz selectable

frequency.f. External Ring Generator connections (800 Watts maximum).g. 16 External Alarm sensing monitor inputs.h. Siren and Alarm control relays.

i. 6 temperature sensors, four sensors for DC/DC converters, one for PCB free airtemperature and one for shelf temperature.

j. Voltage supplies, Ring Generator, and battery monitoring.k. Power Shutdown control and Standby Backup control.

l. Power ratings

Input Voltage: -60 to -41 VDC 35A maximum

Output Voltage: +5.0 VDC 40A maximum (supply to 3.3V Circuits).+5.0 VDC 15A maximum (supply to 5V Circuits). 15 VDC 6.3A maximum(supply to +12V Circuits)-12 VDC 2.0A maximum(supply to –12V Circuits)-48 VDC 25A maximum

The standard and optional built in features of the PSU provide all output voltages monitoring, fuses andcircuit breaker monitoring, two door sensors (front and back), cooling fan sensors, temperature monitoringincluding DC/DC converters temperature, PCB free air temperature, and cabinet temperature. Theoptional features include sixteen external sensors input, one external siren relay, and one external alarmrelay, both relays provide maximum1A 30V DC loading.

The -48 VDC output is from the same input voltage but with a 25A 120V DC circuit breaker / switch.

The PSU (Power Supply Unit) benefits from a MC68302 processor @ 25 MHz andcommunicates to the MCC/PCC via a separate HDLC link @ 2Mbps for added reliability.It supplies different DC voltages for the MCC and PCCs as well as Ringing signal for the line cards.A variety of Alarms and Sensors are provided by PSU.

Below are illustrated the Elite System block diagrams for 16 and 64 shelves configurations:


22

ULI(32)/UDI(60)MC68302@25MHZ 1

ULI(32)/UDI(60)

2

@25MHZMC68302

ULI(32)/UDI(60)

16

...

. ..

PSU (Power Supply Unit)MC68302 @ 16MHZ

Ref. Clk(2)

-14.8V

i960

+4.8V

@100 MHZ

@25 MHZ2 x MC68302

P C C

+6.5V

+

+14.8

V

PCM HW(16)

+4.8V -48

V

-14.8V

Ring

HDLC Control

HDLC

CLK(3)

Shelf #1

Shelf #2Shelf #3

Shelf #4

Cabinet # 1

Cabinet # 2

Cabinet # 4

-48V

-14.8V

-14.8V

+14.8

V

Ref. Clk(2)

@25MHZ

HDLC

+4.8V

.

MC68302 @ 16MHZ

MC68302

2

PCM HW(16)

+

+6.5V

.ULI(32)/UDI(60)

PSU (Power Supply Unit)

ULI(32)/UDI(60) ..

1

+14.8

V

@100 MHZ16 CLK(3)

. ULI(32)/UDI(60)

2 x MC68302

.

+4.8V

i960

@25MHZ

P C C

@25 MHZ

HDLC Control

+6.5V

MC68302

Shelf # 13Shelf # 14


.

.

HDLC (2M)Ref. Clk

.

M C Ci960 @ 100 MHZ

..

.

P C C

P C C

P C C

1

2

16

i960 @ 100MHZ

i960 @ 100MHZ

2 MC68302 @ 25 MHZ

2 MC68302 @ 25 MHZ+

HDLC (2M) HDLC Control

+

8192 TS

Parallel Bus

Global Shelf

Elite 16 Shelves Configuration Block Diagram

RS-485 Media


+14.8

V

+4.8V-14

.8V

@ 4 x 16 MHZ

2048 TS

512 TS

512 TS

512 TS

2048 TS

2048 TS

+6.5V

+14.8

V

+6.5V

Ring

PCM HW (32M)

Ref. ClkHDLC (2M)

PCM HW (32M)

Ref. ClkHDLC (2M)

PCM HW (32M)

Ref. ClkHDLC (2M)

Ref. ClkHDLC (2M)

PCM HW (32M)

PCM HW (32M)HDLC (2M)Ref. Clk



..

..

PCC16PCC15

PCC14PCC13

PCC1PCC2

PCC3PCC4

PCM HW (32M)

..

.


23

ULI(32)/UDI(60)MC68302@25MHZ 1

ULI(32)/UDI(60)

2

@25MHZMC68302

ULI(32)/UDI(60)

16

...

...


Ref. Clk(2)

i960@100 MHZ

+2 x MC68302

+14.8

V

@25 MHZ

-14.8V

+4.8V

+6.5V

P C CPCM HW(16)

Ring -14.8V

+4.8V -48

V

HDLC Control

HDLC

CLK(3)

Shelf #1

Shelf #2Shelf #3

Shelf #4

Cabinet # 1

Cabinet # 2

Cabinet # 16

ULI(32)/UDI(60)MC68302@25MHZ 1

ULI(32)/UDI(60)

2

@25MHZMC68302

ULI(32)/UDI(60)

16

...

. ..


Ref. Clk(2)

-14.8V

i960

+4.8V

@100 MHZ

@25 MHZ2 x MC68302

P C C

+6.5V

+

+14.8

V

PCM HW(16)

+4.8V -48

V

-14.8V

+6.5V

+14.8

V

HDLC Control

HDLC

CLK(3)



...

PCM HWs (8M)

HDLC (2M)

Ref. Clk

PCM HWs (8M)

HDLC (2M)

Ref. Clk

.

.

.

M C Ci960 @ 100 MHZ

..

.

P C C

P C C

P C C

1

2

16

i960 @ 100MHZ

i960 @ 100MHZ

2 MC68302 @ 25 MHZ

2 MC68302 @ 25 MHZ+

HDLC (2M) HDLC Control

+

8192 TS

Parallel Bus

Global Shelf

Elite 64 Shelves Configuration Block Diagram

RS-485 Media


+14.8

V

-14.8V

+4.8V

@ 4 x 16 MHZ

2048 TS

512 TS

512 TS

512 TS

2048 TS

2048 TS

+6.5V

+14.8

V

+6.5V

Ring


24

2. PBB (Ports Building Block) is designated LS (Line Shelf) and is identical to the GS except it hasno MCC resident.

The LS is controlled by a PCC, which can operate on a fully Hot Stand-by duplication redundancybasis.All the communication between Interface cards and the PCC is done through duplicated HDLClink @ 2Mbps.

The PCC on the LS communicates to MCC through a dedicated PCC on the GS. Up to 512 x64Kbps Time Slots (4x128) on the LS is connected to Global Switching network. Different level ofconcentration (1:1, 1:2, 1:3 and 1:4) could be obtained in order to increase the number of portsaccommodated by the system. Communication between local PCC and Global PCC is donethrough a 2Mbps HDLC link. Please refer to the above shown block diagrams.

Each Analog or Digital Port has it’s static assigned time slot on the 512 Local Switching network.For the applications, which need just one shelf, the number of Ports could be increased to 1024by using an additional PCC by the shelf.The LS accommodates PCC, PSU, UDI and ULI and following is a brief description of these cardsin brief:

2.1 PCC (Peripheral Communication Controller):The same as PCC on the GS.

2.2 PSU (Power Supply Unit):The same as PCC on the GS and it communicates with the PCC through a separate 2MbpsHDLC link. It supplies the Ringing signal and different DC voltages for PCC and all Digital andAnalog Interface cards.


25

2.3 ULI (Universal Line Interface):

Specifications:

a. MC68302 Microprocessor operating at 25 MHz clock.b. 4 MB system Flash program memory.c. 1 MB system RAM.d. Two HDLC channels at 2Mbps (1 active and 1 backup).e. On Board DSP for Tone detection and generation.f. On Board 256x256 Cross Point switch.g. Equipped with auxiliary Port for On-hook FSK transmission of Message Waiting,

Calling Name and Number display, PCM data analysis for a thorough parametrictransmission test of the voice path and for running diagnostics to permit troubleshouting in the field.

h. 32 Analog Ports with full service capability.i. Visual Waiting.

ULI is equipped with the MC68302 processor @ 25 MHz for low level call processing and two DSPsfor different tones processing.It also has its own 256 x 256 Cross Point for any internal time slot interchange.Each ULI accommodates 8 AIFM (Analog InterFace Module) Modules. Each AIFM could services upto 4 Tip/Ring lines giving a total of 32 Analog ports per ULI card.

Test-In and Test-Out relays are provided for each of the Analog ports on the Back Cards.Also a provision is on the Back Cards for short loop subscribers, by which the -28VDC supply is fed tothe loop instead of -48VDC to decrease power consumption and unnecessary heat.

Furthermore, every port of the system has its own DTMF transceiver channel resulting non-blockingfor DTMF coding and decoding function. This adds flexibility for applications which require hook flashelimination.

The ULI Analog Line Interface Module is equipped with the Quad Programmable Signal Processorthat performs virtually all the signal processing functions associated with a Central Office LineTermination.Functionality includes Line Termination Impedance Synthesis, Adaptive or Fixed Hybrid Balance(Echo Chancellor, (ITU-T recommendation G.168), and Level conversion both in the Analogsense(Transmit equalization), to accommodate various Subscriber Line Interface Circuits and in theDigital sense, for adjustment of the levels on the PCM bus (Gain Transfer).The ULI card is designed to meet or exceed CCITT, Bellcore LSSGR, EIA-464, ETSI ETS300-001,FCC part 68, DOC CS-03, UL1459, CSA C22.2 # 225-M90 specifications and recommendations forboth in premise and off premise use.

Different standards and requirements for lightening and power cross protection on the metallic linecould be easily achieved just by changing the ULI back card.There is an option on each LS (Line Shelf) to have one or more ULI as a redundant(s) for the rest ofthe ULIs on the shelf.


26

ULI Functional Eleme

uP

AIFM

XPoint

AIFM

AIFM

AIFM

AIFM

AIFM

AIFM

AIFM

ULI Front Card

U

PCM

System HDLCLink

High SpeedLVDS Link

HDLC

DILM

nts

Tip/Ring #32

EMIFilter

SecondaryProtection

RedundantSwitch

Tip/Ring #1

EMIFilter

SecondaryProtection

RedundantSwitch

LI Back Card


AIFM

- E&M- Analog R2- Analog Trunk- DID- SLIM- 2 Way Ringdown- SS #5- Pay Phone- Magneto Phone

PCMHighway

SerialControl

Tip/RingPairs(Four)

i.e. SLIM

- BORSCHT- G.168 Echo

Canceling- Meter Pulse- Ground/Loop Start- Tip/Ring Reversal- A-law/u-law/linear- Programmable

Transhybrid lossImpedanceGain Tip/Ring

Test Port

Tip/Ring 1

Tip/Ring 2

Tip/Ring 3

Tip/Ring 4

Tip/RingTestPort

27

AIFM Module Types and SLIM Feature Set

CrossPoint uProcessor


28

. . .

MDF

ULI # 1

ULI # 15

ULI # 16Redundant

Elite Line Shelf

Back Card

Back Card

# 15

# 16

. .

.

..

.

...

# 1# 2

SLIC + CODEC

SLIC + CODEC

SLIC + CODEC

# 1

# 2

# 32

. .

.

. . .

. . .

...~

...

. . ....

...

. . .

Redundant

1 Line Card Redundancy per Shelf Concept in Elite

. . .

...

Ligh Blue Lines : Back-up lines

Green Lines :Network lines

Dark Blue Lines :Circuit lines

~

~~

~

~~~


29

2.4 UDI (Universal Digital Interface):

Specifications:

a. MC68302 Microprocessor operating at 25 MHz.b. 2 MB system Flash/ROM program memory.c. 2 MB system RAM with Back-up battery.d. Two HDLC channels running @ 2Mbps for inter-system communication (1+1).e. On Board two DSP for Tone Processing/Conversion.f. On Board two 256x256 Cross Points for time slot based information switching.g. Equipped with powerful high density FPGAs and CPLDs.h. On Board 256 Kbytes SRAM for storing different tones PCM samples.i. 2 x E1/T1/J1 links with full service capability.j. 2 x 4 ISDN 2B1Q U interface service capability.

UDI (Universal Digital Interface), is equipped with a MC68302 processor @ 25 MHz for low level callprocessing and two DSPs for different tones processing.

It is intended to support the following list of link modules but not limited to those:- One ISDN-PRA,- One 2Mbps Link,- Four ISDN-BRA, U Interface (2B1Q)- Common Channel Signaling N0.7 Interface- HDSL Primary Rate Interface- LAN/WAN Interface- Nx64KbpsSerial Interface(RS-232 or other)- ISDN H0 rate physical Interface- Modem Pool- X.25 Packet Switching for B channel, HDLC or other- 16 way Conferencing node(or higher)- Voice Messaging node- Extra Memory Module- UDI Tester Module

The design includes a 256 x 256 Cross Point for any internal time slot interchange function.Each UDI accommodates 2 Link Module and 2 Auxiliary Module daughter cards.Based on the application and the type of the connection, the Module can support:


30

2.4.1 One Primary ISDN Link ( E1/T1/J1 Digital Trunk ),

On the UDI Primary ISDN Link Module, there is a very powerful combined E1/T1Transceiver which integrates Software selectable full-featured E1 and T1 frames for bothshort haul and long haul line interfaces.

The hardware meets or exceeds E1 and T1 short haul and long haul network access specifications including ITU-T G.703, G.704, ANSI T1.102, T1.403, T1.408, AT&TTR62411, as well as ETSI 300-011, TBR-12 and TBR-13. It provides encoding and decodingof AMI, HDB3 and B8Zs line codes.

It also provides transmit Jitter attenuation, Clock recovery and Line performance monitoring. Also on-board programmable binary sequence generators and detectors for error testing including support for patterns recommended in ITU-T O.151 is provided. It also supports NxDS0 fractional bandwidth back plane.

2.4.2 Eight ISDN-BRI U Interface ( 2B1Q @ 160 Kbps ), The hardware meets requirements for all ANSI and ETSI loops and it is fullycompatible to : ITU-T G.961, ETSI TS102080, ANSI T1.601-1992, Bellcore approval IEC-Q V4.4.

2.4.3 Layer 1 and 2 of System Signaling No. 7 ( CCS#7 ),The hardware completes level 2 implementation of SS7 and it is compatible withCCITT(ITU-T), AT&T, ANSI and Bellcore Signaling System No.7 Link Level protocol.

Optional operation to comply with Japanese TTC JT-Q703 specification requirements is provided.

Each type of Modules has its, own ID. The UDI main card senses the ID at the time of Power-up in order to configure the software for the connected Module. This automatically reduces the set up time.


31

Link Module # 1

ISDN-PRA

E1/T1( CCS#7, CAS, R1, R2, V5.2)

ISDN-BRA (2B1Q U, S/T Interface)

Link

Interface

Module

1

Data Bus

Address Bus

Control

DMASignals

Link Module # 2

ISDN-PRA

E1/T1( CCS#7, CAS, R1, R2, V5.2)

ISDN-BRA (2B1Q U, S/T Interface)

Link

Interface

Module

2

Data Bus

Address Bus

Control

DMASignals

CPU

MC68302@

25MHz

CPU Bus

Memory

DSPs

Flash Mems

SRAMs

SIMMs

UDI Simplified Connections to Link Modules


32

As mentioned before, Elite Hardware uses powerful RISC processors and DSPs as well as CPLDs andFPGAs.

These advanced semiconductors give the system maximum processing power and such flexibility thatadding differentinterfaces and applications cab be easily achieve through Software/Firmware and DSPs code changesand modifications on the CPLDs and FPGAs.

The table below shows some of the intelligence used on the different cards:

MCC PCC PSU UDI ULI Display ModuleIntel i960 RISC Processor @ 100 MHz 1 1 - - - -Motorola MC68302 RISC Processor @ 25 MHz 2 2 1 1 1 1Analog Device 16 Bits DSPs Family @ 50 MHz - 1 - 2 9 -XILINX Virtex-E FPGA Series (XCV400E) :- 569,952 Gates- 320 Kbits RAM

- 2 - - - -

XILINX Virtex-E FPGA Series (XCV50E) :- 71,693 Gates- 90 Kbits RAM

- 1 - - -

XILINX Spartan-XL FPGA Series (XCS10XL) :- 10,000 Gates

1 3 - - - -

XILINX Spartan-XL FPGA Series (XCS05XL) :- 5,000 Gates

- - 1 - - -

XILINX XC5000 FPGA Series (XC5215) :- 23,000 Gates

1

XILINX Fast Flash XC9500(XL) CPLD Family(XC95144XL) :- 144 Macrocells

4 4 2 1 9 1

XILINX Fast Flash XC9500 CPLD Family (XC9572) :- 72 Macrocells

- - - 3 - -

Memory:

SIMM Flash ROM , 4 x 512 Kbytes x 32bit

6 2 - 1 - -

SIMM Static RAM , 4 x 512 Kbytes x 32bit

8 2 1 - -

PCMCIA Flash Memory Card: 64 MB 1 1 - - - -Flash ROM , 512 Kbytes x 16 - - 1 2 2 1Static RAM , 512 Kbytes x 16 - - 1 2 2 1Built in 33,600 Baud MODEM 1 1 - - - 1Serial Port ( RS-232 / RS-422 Configurable ) 3 3 - 1 1 4


33

Mechanical Design Concept

The Elite system has a universal unique shelf, which is used as a Global Shelf (GS) or as a Line Shelf (LS).

The Back-Plane for both Global and Line shelves is similar and unique. Each shelf has 26 slots and each slot is connected to the Back-Plane through:

6 x (5 x 6 = 30 Pins) LVDS, 2 x (5 x 6 = 30 Pins) power and 1 x (5 x 48 = 240 Pins) Signal

connectors.

Slot # 2 to Slot # 25 are all universal, Slot #1 and Slot #26 are for PSU and LVDSConnectors are not available but power connectors are there instead.

On each Elite card there is also one 32 x 3 = 96 Pins DIN connector used to connect each card to the related Back Card which has no connection to the Back Plane.

The Back Card normally includes the Passive circuitry and the outdoor interface connections and protections.

All the TIP and Ring Connections to the MDF and DDF are via the Back Cards and not through System Back-Plane. This increases fault tolerance and reliability.

Each Elite cabinet consists of four shelves. There is a global ring generator located at thebottom of the cabinet as a redundancy for the local ring generator on every shelf.


34

A B C D E

6543

12

P53

42

56

P543

1

45

23

P55

1

6

5

24

1

P563

6

1

43

6

2

5P57

2

6

4 P585

3

1

43

12

6

P25

2

6

P15

1

43

243

5

1

P596

1

8

16

24

32

40

48

P235

SLOT#1

A B C D E

6543

12

42

56

P613

1

45

23

P62

1

6

5

24

1

P633

6

1

43

6

2

5

2

6

4 P655

3

1

43

12

6

P525

2

6

P515

1

43

243

5

1

P666

1

8

16

24

32

40

48

P260

SLOT#26

PSU(LEFT) PSU(RIGHT)

P64

A B C D E

6543

12

P67

43

12

6

P45

2

6

P35

1

43

243

5

1

P736

1

8

16

24

32

40

48

P236

SLOT#2

NOTE2

6

A B C D E

SLOT#3

3

8

2

5

MCC(LEFT)

P237

4

P74

1

P6

48

1

24

6

6

5

1

P80

2

3

40

1

1

24

5

3

3

5

4

4

32

P5

6

16

2

NOTE1

1

P68

P776

5

P75

3

56

4

4

3

5

3

6

6

1

5

23

5

2

5

2

4

1

5

4

2

1

3

2

6

6

6

1

P69

4

P79

5

3

P72

32

3

P70

6

2

3

1

5

2P76

4

42

P78

5

1

4

4

6

1

3

6

1

P71

1

42

24

1

1

SLOT#4

16

65

48

4

6

P237

43

6

PCC(LEFT)

P7

3

4

2P8

5

6

32

5

2

1

P87

1

1

2

24

P81

8

3

40

5

A B C D E

3

4

6

2

3

1

1

2

5

5

1

P85

6

4

3

4

1

P82

6

3

5

5

6

P83

2

3

5

1

3P86

4

2

6

42

P84

24

1

1

SLOT#5

16

65

48

4

6

P237

43

6

P9

3

4

2P10

5

6

32

5

2

1

P94

1

1

2

24

P88

8

3

40

5

A B C D E

3

4

6

2

3

1

1

2

5

5

1

6

4

3

4

1

P89

6

3

5

5

6

P90

2

3

5

1

3P93

4

2

6

42

P91

24

1

1

SLOT#25

16

65

48

4

6

P259

43

6

P49

3

4

2P50

5

6

32

5

2

1

P234

1

1

2

24

P228

8

3

40

5

A B C D E

3

4

6

2

3

1

1

2

5

5

1

P232

6

4

3

4

1

P229

6

3

5

5

6

P230

2

3

5

1

3P233

4

2

6

42

P231

24

1

1

SLOT#24

16

65

48

4

6

P258

43

6

PCC(RIGHT)

P47

3

4

2P48

5

6

32

5

2

1

P227

1

1

2

24

P221

8

3

40

5

A B C D E

3

4

6

2

3

1

1

2

5

5

1

P225

6

4

3

4

1

P222

6

3

5

5

6

P223

2

3

5

1

3P226

4

2

6

42

P224

24

1

1

SLOT#23

16

65

48

4

6

P257

43

6

P5

3

4

2P6

5

6

32

5

2

1

P80

1

1

2

24

P74

8

3

40

5

A B C D E

3

4

6

2

3

1

1

2

5

5

1

P78

6

4

3

4

1

P75

6

3

5

5

6

P76

2

3

5

1

3P79

4

2

6

42

P77

MCC(RIGHT)

. . .

P92

P60

P1 TO P52 ARE POWER CONNECTORS

P235 TO P260 ARE FOR SIGNALS

Upper 7 connectors of slot2 toslot25(P67-P234) are used for:

WLL interfce and conrol cardsHigh speed bus (LVDS) :


35

Elite Shelf Cage Rear View

18.75"

Female

Male

Female

15.7

"

Female

Back Plane

LVDS Connectors

Back Card

22"

SIGNAL Connector

Back CardConnector

POWER Connectors

Main Crad

24"

L VDS Con n ecto rs

Note:The Solid shown Connectors have connection to Back Plane

No connection to Back Plane

Back Plan e Rear View

DIN(Eu ro) 3x32 p in s

P ow er Co n n ecto rs

Back Crad Co n n ecto r

UDI ,UL I,M CC,PCC Card s

Sig n al Co n n ecto rs


36

System Data for different Configurations

No. of Ports (Max.)

Dimension/Raw Space (cm)

Model

Digital Analog Height Width Depth

Weight (kg)

Power Cons.

(Watts) @ 0.25 Erlang traffic/Line

Single Shelf 960 512 53 71 66 75 8A x 48V

Double Shelves 960 960 95 71 66 130 13A x 48V

Three Shelves 1,440 1,572 140 71 66 185 18A x 48V

Single Cabinet 1,920 1,952 184 71 66 250 25A x 48V

2 Cabinets (8 Shelves)

3,600 3,840 184 145 66 480 45A x 48V


5,400 5,760 184 220 66 710 67A x 48V

4 Cabinets(16 Shelves)

7,200 7,680 184 300 66 940 80A x 48V

8 Cabinets(32 Shelves)

15,120 16,096 184 600 66 1,860 165A x 48V


32K 32K 184 2x600 66 3,600 340A x 48V


37

POWER

To provide continuous operation without call loss during brown outs and power outages, Elite operatesfrom a single 48 Volt primary supply. Each shelf has its own PSU to supply the various voltages requiredby the ICs, processors, memories and peripheral circuitry, thus maintaining modularity.

Also hot stand-by duplication is provided for more reliability.

The Power Supply Unit (PSU) which provides different Voltages for each shelf from single input –48Vsupply, contains the 16 bits microprocessor to control the function and monitoring the converted voltages.

In case of power outage lasting beyond the expected back up, each shelf can be programmed to shutdown those subscribers whose lack of service will least affect their performance.

ALARMS:

Alarms and monitoring facilities provided on each shelf Power supply Unit (PSU).

The status and detected alarms are transferred to local PCC through HDLC Link:

1. Actual Voltage Level Monitoring:

- Input Battery Voltage: Above - 41V and below – 60V

- PSUs Output Voltages

2. Ring Generator:

- Detect Ring Strobe Presence for Internal and External Ring Generators.

- Relay Control Transfer to External Ring Generator.

3. Temperature Monitoring:

2°C to 70°C, 8 bits resolution ± 1°C for:

- PSUs

- Free Air Temperature ( Power Supply Unit )

- Cabinet Temperature ( Outside the Shelf )

- Cabinet Temperature ( Inside the Shelf )

- Ambient temperature


38

CHARGER and BATTERIES

ELITE is powered from an external -48 Volt battery plant and charger. This battery plant must meet thefollowing requirements to be acceptable for use on a telephone system:

• single ground point• noise figure 27dBrnC

The type of charger and batteries used with the ELITE switch will vary depending on the size of thesystem. For example, a fully loaded ELITE cabinet will use 30 amps charger.

It is recommended that you consider 20% over the maximum cabinet load when choosing a charger. Thus, in the case of a fully loaded ELITE, it is suggested that a 30-amp charger be used.

The charger equipment used should be of the battery “float charge” type and must be equipped with LowVoltage Disconnect (44V recommended). If a “charger fail” alarm is provided, it can be interconnected tothe switch’s alarm system. ELITE will cut off at 43 volts or less and will not reconnect until the AC voltagehas returned to normal.

Battery types used with the charger may be Gel Cell if installed in the Elite equipment room or lead-acidcells if installed in a separate ventilated room.

Most charger manufacturers will recommend a battery type to be used with their equipment.


39

Administration and Maintenance

Introduction:

The ELITE switching system supports more than 200 commands for administering and maintaining thesystem. Commands are entered interactively on a service terminal, which can be local, or at remotelocation connected to the switch through a built in modem.

Various commands exist to change configuration data for the system, subscribers, attendants and trunks.The ELITE switch also offers an extensive range of commands to trace faults on the system, displaycurrent status of calls and examine traffic statistics.

THE SERVICE TERMINAL

The commands to the system are entered on the service terminal. Any responses resulting from thecommands are displayed on the Service Terminal. Service terminals can be simple display units orPersonal Computers running any serial communication program. One of these programs maybe ELITE'Sown TXLINK. The advantage of using TXLINK is that configuration files can be saved and reloaded fromthe computer’s memory.

TERMINAL TYPES

Any data terminal device (including hard copy terminals) that meets the following requirements can beused as a Service Terminal:

! Display/print ASCII Character Set

! Generate all uppercase characters (CAPS LOCK capability)

! RS-232C Serial Interface


40

CONNECTIONS

The Service Terminal can be located either on the same premises as the ELITE switch, or at a remotelocation through the used of modems. Local connection of the Service Terminal to the ELITE is via aserial port on the MCC port located on the back panel of the cabinet. Remote connection is via one of the2 built in Modem ports on the back panel. To communicate with one another the communications settingof the Elite’s serial port and the Service Terminal must beidentically configured. The default settings of the Service Processor are as follows:

! 9600 bits per second transmission speed

! 8 data bits and no parity

! 1 stop bits

For more information about connecting the Service Terminal to the ELITE see the appropriate ELITEInstallation and Maintenance Manual and the terminal's documentation.

TXLINK

TX Link is a proprietary software program that allows an IBM Personal Computer (PC) or compatibledevice to operate as a Service Terminal. Unlike a "dumb" terminal, using a PC permits the storage of theElite’s configuration data on disk. In the event of a long-term power failure the configuration data can bereloaded from the PC to the ELITE. The information and instructions provided in this document applyregardless of whether a dumb terminal or a PC is being used as a Service Terminal. See the TX LinkUser's Guide or System programming Guide for more information.

USING TWO SERVICE TERMINALS

When two Service Terminals are connected to the Elite (one to the MCC serial port and the other to theModem port) the first terminal to log on will have use of the Service Processor. Any attempt to access theService Processor while it is in use will result in a "COMMAND IN PROGRESS" message. Access to theService Processor can be gained when the terminal that is currently using the Service Processor logs off,or when the command in progress has been processed. In either case, to get the attention of the ServiceProcessor, see the STUG manual. When the Command Line prompt (<) appears enter a command mustbe entered before preset time out, otherwise the other terminal will regain control of the ServiceProcessor.


41

SERVICE TERMINAL ERROR CODES

A number of hexadecimal error codes may appear on the screen during the operation of the ServiceTerminal. These error codes are produced for a variety of reasons as explained in the Service TerminalError Codes Table located in Appendix A of this guide.

COMMAND LISTING BY FUNCTION

Some system components or features such as Least Cost Routing are programmed using two or morecommands. For each significant component or feature, all of the commands required to make thecomponent or feature operational are listed on the STUG manual.

DEFAULT CONFIGURATION

When powered up for the first time the Elite automatically produces a configuration based on a five digitnumbering plan and a scan of the hardware installed. The type of hardware in each slot will bereconfigured to the installed hardware. For each component or feature for which data can be altered, thedefault programming is stated. Among the more significant default conditions are:

! Equipment Shelves with ISDN Feature Sets (IFS) installed when the Elite is first powered up, are configured with CLS option 4 (i.e., Digiphone Broadcastenabled.)

! All lines that are associated with IFS are programmed as type S.

! All equipped ports are programmed as type T for analog ports (ULI) and S for digital ports (UDI).

! All subscribers are assigned to Station Class of Service 0 which allowsunrestricted access for outgoing calls.

! The first audited trunk (loop or ground start) determines the trunk type of route 0. All subsequent trunks of the same type are assigned to this route.


42

SERVICE TERMINAL COMMANDS

TYPES OF COMMANDS

There are two broad categories of commands: (1) Changing or Modifying (normally called "C" or "M")commands) and Print or Show (normally called "P" or "S") commands. The Change commands as thename implies allow changes to be made to the configuration data of the Switch while the Print commandspermit data to be displayed on the screen for the purpose of examination only. As a general rule for eachChange command there is a corresponding Print Command. A typical example is the CTD Command,which is used to change the programming of individual parameters.

Note: For getting more information on Command structure and different types of command, refer to the Elite STUG manual.

Administration functions (e.g. Data base generation, changes and modifications, Class of Service, Trunk

Routing) can be preformed interactively via the service terminal.

The service terminal can be provided on-site or at a remote location via the built in modem.

The Attendant console can also do limited administration.


43

GRNERAL SOFTWARE DESCRIPTION

Introduction

The Elite Switch software is highly modular consisting of more than 1000 system files compiled and linkedtogether to make a program executing on the Main Communication Controller (MCC). In addition a separate setof programs are generated for Peripheral Communication Controller (PCC), a Universal Line Interface (ULI) andUniversal Digital Interface (UDI).

All the software is written in C language. The files are compiled and linked on R&D mainframe computer and theexecutable files are transferred to the flash memory on the interface cards. The flash can be programmed usinga separate flash programmer or by transfer ring directly from a file to a flash SIM on board using a proprietaryTXLINK communication program.

After the flash SIM is programmed there is a provision to swap the flash to start running on the new program. Ifthe data structures are compatible it is possible to update software without dropping any calls.

Operating System

The Elite consists of several different operating systems, which depend on the interface cards. All the operatingsystems are proprietary. The operating systems are combinations of different priority interrupt handlers, different levels of task handlers and polling for status changes.

Power up Initialization

On power up each card initializes all the hardware registers and assumes default configuration. This means thatthe system is ready to process calls even if configuration data is not available. After initialization each card isready to communicate with its master. It makes its request known on the card status line.

Card Status Line

A unique feature of the Elite system is the card status line. This is a PCM highway of 32 timeslots connecting allthe cards on the back plane. Each card slot is allocated 1 timeslot. Thus each card can transmit 8 bits of dataevery 125 us to its master. One of the bits is a request for communication.

The status line also shows to any card on the system if a given slot contains an interface card. Thus if a card isunplugged a backup system can take over immediately instead of waiting for a communication timeout.


44

Inter Card Communication

The communication between cards takes place over 2Mbit HDLC highways. There is a separate link forcommunication between PCC and line cards (ULI, UDI) and for communication between MCC and PCC.

The communication is point to multi point. The master polls each card based on requests on the card status line,messages and timeouts. The HDLC address is read from the back plane and is unique to each card slot.

Most messages are routed through the active MCC. The MCC talks to all the PCC's connected on theglobal shelf. The PCC's talk to the line cards. The MCC is a master to PCC's and the PCC's are mastersto line cards.

Message Structure

There are 2 types of messages used by the MCC. The external messages are used for communicationbetween different cards. Internal messages are used for communication between states or tasks.

Byte Word Byte Byte Byte Byte Byte Byte Max. 504 Byte Word Byte

Flag

Address Ctrl1

Ctrl2

Destyp Dstshl Dstprt msgtyp Byte Info FCS Flag

7E Message Q.921 Control Destination Destination Destination Message Message Information Field 7E Address Field Type Shelf Port Type

The structure of external messages is as follows:

Message length (2 bytes)HDLC address (2 bytes)Control (2 bytes)Destination address (3 bytes)Message type (1 byte)Information (up to 504 bytes)


45

The destination address is the final destination point (card or port) of the message and is fixed for a givenmessage. The HDLC address may change depending which processor is relaying the message.

The information field may consist of several different information elements with the following structure:

Info type (1 byte)Length (1 byte)Information (up to 256 bytes)

Some special message types have a fixed information element and do not require an information elementdescriptor.

Internal messages have the following structure:

Destination code (1 byte)Destination shelf (1 byte)Destination port (1 byte)Activity code (1 byte)Source party (1 byte)Destination party (1 byte)Call register (2 bytes)

These messages are exchanged between call register parties during a call setup. Note that there are upto 3 parties in the call register.


46

System Data Organization

The system data is organized into 3 sections: configuration data which can only be changed using theservice terminal, the global dynamic data which can be accessed by different states and tasks, andtemporary data which is only valid when a given task or state is accessed.

Global data contains call register data, which records all the information relevant to a given call. Some ofthe call related information is also stored in a port dynamic data. The call register lasts for the duration of acall. The message buffers and traffic statistics are also stored in the global data.

The global data is lost when the system power is removed.

Configuration Data

All configuration data is kept in RAM on the MCC. The configuration RAM is battery backed for more than72 hours so that if the power to the system is lost the configuration data is preserved. The configurationdata can be saved on flash memory or a flash memory card resident on the MCC. The configuration datacan also be saved on a computer, which is attached to the system running a TXLINK serialcommunication program. If the configuration data stored in RAM is lost the data can be retrieved from oneof the above storage media. The data from flash to MCC can be downloaded in less than 2 minutes. Ittakes about 15 minutes to download the data from a PC file.

The MCC also receives and processes system configuration messages received from a service computerconnected on one of the RS232 ports on an MCC card.

Hot Standby

The Elite System can be equipped with 2 MCC, one active and one hot standby.

The MCC's are inserted in slots 24 (left MCC) and slot 20 (right MCC). The left MCC is referred to as theprimary and the right as the secondary.

When the system is powered up the secondary MCC waits a few seconds before starting up. There is nowait on the primary so that the primary has the priority of becoming active before the secondary.

On power up each MCC checks if the other MCC is installed and active using two status lines on the backplane. If the other MCC is installed and active (active means that it can process all call activity messagesand service terminal messages) then the MCC being powered up goes into standby mode.

If the MCC determines that it is to become active it continues in the normal way by checking itsconfiguration data and if it is corrupted it reloads it from a flash card if available.

The standby MCC initializes itself as follows:

It starts flashing the BKP STATUS LED and sends a request for software and data version numbers. Itrepeats the request every 5 seconds until it is successful in getting it.


47

When it gets the version number it requests the reload data. The complete reload takes about 10seconds.After the reload it requests the PCC equip status and then shelf audit of all the ports to equip its own ports.

When the audit is completed it checks the data version number of the active MCC and if it is the same itrequests memory transfer of the active call records. When this is taking place both the active and standbyMCC flash the BKP STATUS LED. During this time no new calls are processed. The user actions madeduring the call data transfer are buffered and processed after the transfer is completed. This takes about 5seconds. When the active call data transfer has been completed the BKP STATUS LED is turned on bothMCC's. When the 2 LEDs are on, then it is an indication that the standby MCC has been updated and isready to take over.

The standby MCC is constantly monitoring the active MCC. As soon as the other MCC becomes inoperational, indicated by the fact that the install status line shows unequipped or the shutdown status lineshows that the other MCC is in shutdown mode, the standby MCC takes over the call processing.

During normal standby ready operation all activities received by the active MCC are relayed to the standbyMCC to process them on its own. Thus all calls and data updates are immediately updated on the standbyMCC.

Since the two MCC's can run independently on completely different software versions it means that oneMCC can be unplugged and the software changed without shutting the system down.

System Initialization

When the MCC first powers up it checks if it is the first MCC on the system. If there is another MCC itassumes a backup status and requests configuration and call updates from the active MCC. If there is noactive MCC on the system the MCC assumes an active status and checks if the configuration data isvalid. If the configuration data is not valid the MCC looks for a flash memory or a flash card which containsthe configuration data. If one is found the data is downloaded into RAM. If no data is found the systemstarts up with default data.

Once the MCC has initialized the configuration memory it starts polling the PCC's that are found to beplugged in based on the status line. Once a PCC responds the MCC updates the PCC with all the relevantconfiguration data such as the general system data, slot data and cadence tables.

After the PCC receives all the configuration data it starts polling the line cards. When a line card respondswith a power up message, which is passed, directly to the MCC, the MCC sends the configuration data tothe line card. The line card waits for the configuration data before initializing the hardware ports. Theequipped status of the hardware ports is relayed to the MCC to equip the ports.

After the cards have received all the configuration data from the MCC the system is ready to accept call-processing messages.

The MCC also receives and processes system configuration messages received from a service computerconnected on a RS232 port.


48

Call Processing

At least 3 processor equipped cards (Intra-Shelf calls: 1ULI/UDI, 1 PCC, 1 MCC) are responsible in callsetup. For inter-shelf or outside calls, 7 processor-equipped cards are involved for call processing(2 ULI/UDI, 4 PCC, 1 MCC).

The MCC takes care of all the resources and routing of the messages. The PCC exchanges messagesbetween the MCC and the line cards. It also sets up the PCM connections under the direction of the MCC.The responsibility of the line cards is to detect any changes in the line signaling. All call processing messages are routed through the MCC. The MCC is responsible for allocationresources and giving direction to PCC cards and line cards to send appropriate signals and makeconnections.

All resource information is kept in a buffer called Call Register. The call registers consist of a generalsection and 3 party sections, which store all the data, related to the 3 parties that can be involved in a call.The call register data is about 200 bytes in length.

During a call setup one dialing buffer is required to store the dialed digits. The dialing buffer is releasedafter a destination party is found and the digits are transferred to the SMDR buffer.

The MCC constantly scans for call processing messages from line cards. When a new call is initiated theMCC allocates a call register and a dialing buffer if necessary to store the dialed digits.

Since the cards can only send messages when asked by the MCC, the MCC never gets overloaded withmessages. After it processes a batch of messages it asks for more messages. It is up to the interfacecards to buffer the messages. Thus it is very unlikely that messages can be lost during an overloadcondition. During an overload condition a delay in dial tone may be experience but there is no chance of acatastrophic system failure.


49

Elite Wireless Interface

Overview

The new Elite End Office Switch will add a variety of wireless interface offerings to the extensive list ofPSTN and subscriber interface types currently supported. These wireless interfaces will include, but arenot limited to DECT, GSM, CDMA, back-haul microwave, and satellite links. In keeping with the traditionestablished with the UDI and ULI interface products, the architecture of the wireless interface products arehighly flexible and modular. A complete wireless interface consists of two cards, namely the UWI andRTU. The RTU is an air interface specific design similar to that of the analog and digital applique interfacemodules that are mounted onto the ULI and UDI cards respectively. The UWI card is analogous to the ULIor UDI motherboards that control the applique interface modules. The partitioning of the design in this wayis made possible by embracing the software radio paradigm: A good portion of the wireless deign isimplemented in software so as to permit in-field re-targeting of the UWI to different wireless standards.


50

PCM Highway

High SpeedLVDS Link

Backcard

HDLC

DILM

XPoint

Backcard

HDLC

DILM

RTU UWI

HDLC SystemLink

Figure 1: Rear View of the RTU and UWI Midplane Interconnect within the Elite Shelf


51

Figure 1 above illustrates the two card wireless solution. High speed data and control information areshuttled between the two cards via the point-to-point LVDS link on the Elite midplane. For voicecommunication, the received RF signal is down-converted, digitized and sent to the Drop and Insert LVDSMultiplexor (DILM). The RTU DILM sources data onto the LVDS link where it is received by the UWIDILM. The UWI converts the received signal into baseband format, demodulates it, extracts the codifiedvoice, and sends the resultant PCM data to the cross-point. The cross-point sources the PCM data ontothe midplane where it is circuit switched like any other voice data. For RF transmit data the process isreversed.

RTU Card Functionality

The RTU card (Radio Transceiver Unit) is responsible for down converting an incoming RF signal to adigital IF signal on the receive side and up converting a digital IF to an outgoing RF signal on the transmitside. The digital IF data is transmitted and received to/from a UWI card via a high speed LVDS Add/Dropbus implemented on the Elite midplane. Any UWI can relay data to any RTU connected to this LVDS bus.


52

DILM

HighS d

RTU

Front Card

DILM

Hdlc

PowerLevelControl

10 MHz

Figure 2: RTU Functional Elements

Receiver

uP

Power Split

Pre-Amp

RFLNA

RF transmit

Transmitter

UartX2

RS-232


53

Figure 2 shows the high level building blocks of the RTU. Control of the RTU is managed by the 16 bitMC68302 micro-processor. The RTU can interact with the system through the system HDLC link. Thesystem HDLC link also supports “user-to-user” messaging to effect a medium speed communication linkbetween the UWI and the RTU. A high speed UWI-to-RTU link can be implemented on the LVDS bus.The Dual UART is present for control of a “rack and stack” RF power amplifier.

Salient features of the RTU include:

- The RTU is air interface dependent: filters are optimized for the particular RF band of operation (i.e.900 MHz for GSM-900, 1900 MHz for PCS-1900 etc.)

- Each RTU will support up to 2 separate RF inputs and outputs. These may be used for the purposesof diversity, redundancy or increased capacity.

- Each RF input may support either narrowband (single carrier) or wideband (multi-carrier) receivertopologies.

- Each RF output may support either narrowband (single carrier) or wideband (multi-carrier) transmittopologies.

- Each RTU consumes one slot in a shelf. For single carrier transceivers, this equates to one diversityRF channel per slot.

- Each RTU will provide status and control bits to interface with external Power Amplifier, Low NoiseAmplifier, and ancillary filtering equipment.


54

UWI Card Functionality

The second card that comprises the wireless interface is the Universal Wireless Interface (UWI) of figure3. This card is fully digital and makes extensive use of TI TMS320C62xx DSPs and Xilinx Virtex FPGAs toperform the following lower layer functions:

- Converts incoming IF to baseband and outgoing baseband to IF all in the digital domain.

- Demodulates and modulates incoming and outgoing data

- Codifies and de-codifies data for error detection/correction

- Interleaves and de-interleaves data for time diversity

- Performs data encryption/decryption

- Voice codifying and de-codifying (CODEC) for compression

- V.110, V.120, and group 3 FAX data conversion

- Carrier and symbol timing recovery

- Equalization


55

DILM

High SpeedLVDS Link

UWIDILM

HDLC

10 MHz

DigitalUp/DownConverter

Figure 3:UWI Functional Elements

DSPArray

uP

PowerSplitter/Combiner

LNA

PowerSplitter/Combiner

Xpoint


56

For processing higher protocol layers the UWI contains a Module MPC8260 RISC microprocessor (PowerQuicc-II) which performs the following:

- Call setup and tear-down

- Frequency hopping (for multi-carrier RTUs)

- Call hand-off and roaming (for mobile applications)

- Special services (calling name delivery, call waiting, etc.)

- Control of the RTUs in the system

Because the UWI is DSP and microprocessor based, all of the above functions are performed in software.The UWI is therefore easily re-targeted to meet different current and future wireless technology standards.Industry refers to this type of architecture as that of a software radio. A partial list of air interface andprotocol standards that may be realized by the UWI include:

AMPSTACSIS-95 (CDMA)IS-136GSM (900 MHz)DCS-1800PCS-1900DECTCT2CDMA-20003GPP

New air interfaces and protocols may be implemented in software and upgraded in the field.


57

High Speed LVDS Link

A fully redundant 4 Gb/s bidirectional drop and insert LVDS bus supports communication between theUWIs and the RTUs. Each UWI and RTU contains a microprocessor controllable Drop and Insert LVDSMultiplexor (DILM) that orchestrates the insertion and removal of data onto and off of the LVDS midplanepoint-to-point bus. Salient features of the LVDS link include:

- Full Duplex high speed (4 Gbit/sec) link based on differential LVDS logic provides high signalintegrity

- The LVDS link is fully redundant: Any single RTU or UWI can fail without affecting data onthe link. Redundant RTUs and UWIs can be “warm swapped into the wireless network.

- The LVDS bus is point-to-point. The bus performance is not affected by loading.

- Each shelf can support many LVDS links and therefore many different wireless air interfacestandards.

- The LVDS link and presentation layer format are fully software programmable.


58

WLL Solution

The initial wireless product offering within the Elite End office will be GSM-900 MHz for wireless local loopapplications. The design will feature:

Two full duplex RF channels per RTU. To meet demanding GSM sensitivity specifications, the receiverportion of the RTU uses a narrow-band (single carrier) processing topology. The following features apply:

- The RF channel spectrum occupancy is designed in compliance with ETSI specifications.The absolute broadcast frequency can be easily shifted +/- 150 MHz for non-standardapplications.

- The RTU supports two channel Spatial Receive diversity (three or more to follow)

- Two Full Duplex single channel narrow band RF carriers per RTU

- Thirty two full rate GSM voice channels per UWI

- Up to 35 km coverage radius

- Supports Slow frequency hopping for lower channel BER variance

- Supports GPRS for high speed internet connection ( 76.8 Kb/s busrt rate )

Figure 4 bellow illustrates a fully loaded shelf delivering a total of 96 full rate GSM voice channels withreceive diversity. A fully loaded non-diversity solution would comprise 10 RTUs and 5 UWIs to yield 160voice channels. Finally, a fully loaded shelf loaded with 8 RTUs and 8 UWI can deliver 256 half rate GSMvoice channels with no receive diversity.

Shelf expansion can be realized by installing LVDS bus expansion cards positioned beside the left mostRTU and the right most UWI. In this manner the full 35 MHz GSM spectrum can be covered by one basestation.


59

PSU

ELITE

PSUMCC

PCC

PCC

RTU

RTU

RTU

RTU

RTU

RTU

RTU

RTU

RTU

RTU

UWI

UWI

MCC

SEC

PRI

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2124 25 2622,23

PRI

PRI

PRI

SEC

L C D

+3.3 V

+5 V

+12 V

-12 V

Ring Gen.Int.

Ext.

+3.3 V

+5 V

+12 V

-12 V

Ring Gen.Int.

Ext.

Main SW

Run

Minor

Reset

Major

RTU

SEC

PCC

Figure4: Shelf Capacity of a GSM-900 MHz GSM WLL Solution with Spatial Receive Diversity

UWI

RTU


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Elite

SDH Optical Interface

S.O.I


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Introduction:

SDH (Synchronous Data Hierarchy) is a standard recommended by the ITU-T.SDH was first introduced into the telecommunications network in 1992 and has been deployed at rapidrates since then. It is deployed at all levels of the network infrastructure, including the access network andthe long distance trunk network.

It’s based on overlaying a synchronous multiplexed signal into a light stream transmitted over Fiber-Opticcable. The increased configuration flexibility and bandwidth availability of SDH provides significantadvantages over the older telecommunications system. The advantages include:

- A reduction in the amount of equipment and increase in network reliability.

- The provision of overhead and payload data permitting management of the payload data on an individual basis

- and facilitating centralized fault sectionalized.

- The definition of a synchronous multiplexing format for carrying lower level digital signals (such as 2Mbit/s, 34Mbit/s, 140Mbit/s) which greatly simplifies the interface to Digital switches, Digital Cross-connects, and Add-Drop multiplexers.

- The definition of a flexible architecture capable of accommodating future applications, with a variety oftransmission hierarchy.

Bit Rate Abbreviated SDH SDH Capacity

51.84 Mbit/s 51 Mbit/s STM-0 21 E1155.52 Mbit/s 155 Mbit/s STM-1 63 E1 or 1 E4622.08 Mbit/s 622 Mbit/s STM-4 252 E1 or 4 E42488.32 Mbit/s 2.4 Gbit/s STM-16 1008 E1 or 16 E49953.28 Mbit/s 10 Gbit/s STM-64 4032 E1 or 64 E439813.12 Mbit/s 40 Gbit/s STM-256 16128 E1 or 256 E4


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Specification:

- One Motorola MPC8260 Power Quicc II RISC Processor @ 200 MHz.

- One Intel 100MHz i960JT RISC processor.

- Two Motorola MC68302 IMP processors @ 25MHz for controlling HDLCcommunications.

- 128 MB (maximum) system ROM (6 banks SIMM).

- 128 MB (maximum) system RAM (8 banks SIMM).

- 64 MB (maximum) PCMCIA Flash memory card, type I.

- Four HDLC links, two HDLCs for inter-processor communications, the other twoare used for inter-card communications.

- 63 E1 = 1890 x 64Kbps Link capacity

- Providing 32Kbps ISDN tandem connection on the STM-1 ring

- Providing Orderwire services of the STM-1 ring

- ITU-T G.742, G.751, Conformity

- Supporting all Signaling Schemes on the PDH (R1, R2, CAS, CCSNo.7, V5.2, …)

- SDH STM-1/SONET OC-3 Interface, ITU-T G.707 Conformity

- Point to Point and Ring ( Unidirectional Self Healing ),

- 1 + 1 APS ( Automatic Protection Switching), ITU-T G.841 Conformity

- 1300 nm, Single Mode, Optical Transceiver

- ATM 155 Mb/s Physical layer Conformity

- Laser Bias and Laser Power Monitoring capability

- FCC Class B, EMI (Electro Magnetic Interference) Conformity

- Three Serial ports, two of the serial ports can be configured as RS232/RS422.


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SOI (SDH Optical Interface):

SOI is an interface for Elite, and as shown in below, is employed to connect the Switch to a remoteAdd/Drop Multiplexer (ADM) in point to point or SDH ring through Fiber Optic Link.

The ADM is located on an SDH ring and is used to carry traffic in a backbone network. The SIO isdesigned to handle the traffic of 63 E1 signal, the whole bandwidth of the SDH frame can be utilized by E1signals.

The employed STM-1 ring is the type of USHR (Unidirectional Self-Healing Ring) that is described below.

In the system side, the SOI is connected to 63 E1 TDM Highways running in the back plane of the ELITEsystem. The TDM highways might be either unframed LVTTL serial streams at 2.048Mbps or E1 signals.Ring connection for STM-1 is also supported in the design so that a minimal change or adjustment shouldbe performed for applications in which ELITE will be used as transit switch connecting directly to abackbone SDH ring.

It is to be noted that for an ADM application, the switch core should also be properly programmed tohandle the management of the crossing traffic. Nevertheless, the whole bandwidth of an STM-1 signalshould be partitioned into dropping and crossing traffics.

ELITE system SDH interface consists of two SOI cards running on a fully hot active stand by basis forsupporting required protection on the ring (Automatic Protection Switching).


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- APS on a point to point configuration:

Figure below shows the Elite system connection to STM-1 Fiber Optic on a point to point configuration.As illustrated, each of the SOI cards is connected to two Fiber Optic cables, one on the receiving directionand the other on the transmitting direction.

Physically, the connected cables to each of SOI cards are separately distributed. In normal condition, TheSDH interface process the information received from the active SOI card and transmits the information toboth of active and stand by SOI cards.

In case of broken down the connection to active SOI card or malfunctioning of the active SOI card, theSDH interface switches to the stand by SOI card. Then the appropriate Maintenance Alarms/Informationwill be generated and sent through the STM-1 administration header block bits to the systemadministration and maintenance facility.

Protection

Working

Elite

Elite in Point to Point Configuration

SOI#2

SOI#1


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- APS on a Ring configuration:

The ELITE system SDH interface is connected to the SDH ring via two SOI cards.Figure below shows the protection mechanism on a USHR ring:

An USHR ring consists of two unidirectional fiber optic rings to support switching for the requiredprotection. The architecture of the ring is in accordance with the APS 1+1.

In normal condition, a copy of the information on the active ring is transmitted to one of the input nodesOn both active and stand by fiber optic ring.On the receiving node a selector is monitoring the information received from both active and stand by fiberand in case of no signal or poor signal on the active one, the stand by fiber will be switched to take overthe active one. The time for this switching should be less than 50ms.By using two SOI cards, which each is connected to a pair of fiber optic cable (Transmit and Receive), theELITE can be interfaced to USHR ring in two ways:

1

2

3

4

USHR Ring


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1. North/South Configuration:On this configuration each ring is completely assigned to one SOI card. There is a Ring Control Path named Ring Alarm for transmitting the errors to the rest of the system.

Rx

SOI#2

Add

Drop TxCross

Connect

Rx

AddTx

Drop

SOI#1

Add/Drop

CW Ring

CCW Ring

Elite

Elite in North/South Configuration


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2. West/East Configuration: On this configuration both of SOI cards are used to implement USHR ring. On each ring, one SOI carddoes the receiving job, while the other perform the transmitting function. Due to the fact that receivedinformation by each of SOI cards comes from the other, there is no need for Alarm Signals on this configuration.ELITE supports the West/East Configuration.

TxCW Ring Drop

Add/Drop

SOI#1 SOI#2

Drop

Tx RxAdd

Rx

Connect

Elite

Cross

AddCCW Ring

Elite in West-East Configuration


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Elite

Integrated Voice Mail

I.V.M


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Introduction

The IVM (Integrated Voice Mail) is a menu driven system which can be customized to best suit the needsof your organization.You can tailor options and menus to your site. Users can also customize personal greetings to conveyavailability daily, weekly or hourly if necessary.

The IVM provides 32 simultaneous connections to the voice mail facilities and because the voice mail forthe Elite system is offered on an interface card, no additional subscribers are needed.

The Voice mail provides at least 1300 mailboxes each with 30 minutes of recording time.

IVM can manage communications without a live operator.The IVM will greet caller with an introduction, ask them to provide the called party’s extension or selectfrom options, then transfer the calling party to their requested destination.

The IVM also offers advanced features that will request the calling party for their name for call screening,and can even announce the call over your in-house paging system.

The IVM can also direct the caller to prerecorded messages providing frequently requested informationsuch as directions to your facility, department contacts, product information, etc.

The IVM programming can be done from the system’s service terminal. Recording is done easily using ahandset and following voice recorded instructions.

Administrative Features:

- Automated Attendant for operator free reception and transfer

- System administration by telephone or Service Terminal

- Remote administration

- Multiple time of day configurations for each class of service, mailbox, menu, or extension

- Call screening and paging options

- Set time and date

- Print or view system administration reports

- Add or delete mail boxes


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Users Conveniences

- First time user tutorial for easy set up of mail boxes

- Password protection

- Multiple messaging option including private, urgent, future delivery, and confirmation receipt

- Messages can be played faster, slower, louder, softer or skipped

- Each message can be replayed, saved, deleted, forwarded or replied to with annotation

- Date/time stamp and sending mailbox ID on every message

- Multiple greeting per mailbox, including standard, temporary, busy and time sensitive

- Call screening with calling party name played to mailbox owner who can then accept, reject,or forward the call to another station

- Address by name or mailbox number

- Re-record message reminder

- End of recording warning

- Return to personal operator


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IVM (Integrated Voice Mail)

Specifications

The Integrated Voice Mail Card contains two micro-controllers, an i960 and a MC68302. TheMC68302 is used for the ELITE system interface, and the i960 is used for the user interface andstorage. There is a 1KB DPR for inter-processor communications. The Voice Mail Card will usedouble line card slots.

i960 RISC Processor Section

a. Intel 100 MHz i960JT Processor

b. 33 MHz external CPU clock.

c. 2 M bytes system RAM, expandable to 64 M bytes (4 SIMMs).

d. 2 M bytes system ROM, expandable to 64 M bytes (4 SIMMs).

e. Real Time Clock.

f. 10BaseT Ethernet connection.

g. IDE Hard drive Interface.

h. Built-in two IDE disk Drive, one of the drive is for Backup.

i. Up to 64 MB PCMCIA Flash memory card.

j. One RS232C serial port and modem.

elite - txcommunications.com · accommodated in a elite cabinet giving 2048 ports without blocking...

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