document2

OPTINEX 1662SMC 1. RELACION ENTRE TARJETAS 1

2. VISTA FRONTAL DE TARJETAS 5

3. SUBSISTEMA DE CONEXIONES 30

4. SUBSISTEMA DE PROTECCION 32

5. PARÁMETROS DE INTERFACES OPTICAS 70

2.3 Relationship between Port Card and Access Card Table 19. Relationship between P63E1, P63E1N-M4 port card and A21E1 access card

Port Card acronym Port Card Slot Access Card acronym Access Card Slot 7 A63E1 2(CH.1-63) 8 A63E1 3(CH.1-63) 9 A63E1 4(CH.1-63) 10 A63E1 5(CH.1-63) 11 A63E1 16(CH.1-63) 12 A63E1 17(CH.1-63) 13 A63E1 18(CH.1-63)

P63E1 P63E1N

14 A63E1 19(CH.1-63) Table 20. Relationship between P63E1/P63E1N port card and A21E1 access card

Port Card acronym Port Card Slot Access Card acronym Access Card Slot

7 A21E1 2(Total 21CH,range from CH.1-63)







P63E1 P63E1N P21E1


There are two N+1 (N <= 3) EPS revertive protection scheme can be created (for more details see point [3] of para. 3.13.1).

In case of EPS configuration the following configuration rules must be respected:

– Insert the protecting port card in a slot at the left or right of the protected port cards group.

– Insert the special protection access card (LPROT) associated to the protecting port card following the rule reported in Table 1. ( for example if the "protecting port card" has been inserted in slot 7, the "protection access card LPROT" must be inserted in slot 2).

Table 21. Relationship between P3E3T3 port card and A3E3 access card

Port Card acronym Port Card Slot Access Card acronym Access Card Slot 7 A3E3 2(CH.1-3) 8 A3E3 3(CH.1-3) 9 A3E3 4(CH.1-3) 10 A3E3 5(CH.1-3) 11 A3E3 16(CH.1-3) 12 A3E3 17(CH.1-3) 13 A3E3 18(CH.1-3)

P3E3T3

14 A3E3 19(CH.1-3) One or more 1+N (N ≤ 7) EPS revertive protection scheme can be created (for more detail see point [3] of para. 3.13.1 ). In case of EPS configuration the following configuration rules must be respected:

1

1

- Insert the protecting port card in a slot at the most left of the protected port cards group.

- Insert the special protection access card (HPROT) associated to the protecting port card following the rule reported in Table 21. . ( for example if the “protecting port card” has been inserted in slot 7, the ” protection access card HPROT” must be inserted in slot 2).

Table 22. Relationship between P3E3T3 port card and A3T3 access card

Port Card acronym Port Card Slot Access Card acronym Access Card Slot P3E3T3 7 A3T3 2(CH.1-3) P3E3T3 8 A3T3 3(CH.1-3) P3E3T3 9 A3T3 4(CH.1-3) P3E3T3 10 A3T3 5(CH.1-3) P3E3T3 11 A3T3 16(CH.1-3) P3E3T3 12 A3T3 17(CH.1-3) P3E3T3 13 A3T3 18(CH.1-3) P3E3T3 14 A3T3 19(CH.1-3)

One or more 1+N (N ≤ 7) EPS revertive protection scheme can be created (for more detail see point [3] of para. 3.13.1 ). In case of EPS configuration the following configuration rules must be respected:


- Insert the special protection access card (HPROT) associated to the protecting port card following the rule reported in Table 22. . ( for example if the “protecting port card” has been inserted in slot 7, the ” protection access card HPROT” must be inserted in slot 2).

Table 23. Relationship between P4S1N, P4E4N, P4OC3 port card and A2S1 access card

Port Card acronym Port Card Slot Access Card acronym Access Card Slot P4E4N, P4S1N, P4OC3 (CH. 1-2)

7 A2S1 2 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

8 A2S1 3 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

9 A2S1 4 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

10 A2S1 5 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

11 A2S1 16 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

12 A2S1 17 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

13 A2S1 18 (CH. 3-4)

P4E4N, P4S1N, P4OC3 (CH. 1-2)

14 A2S1 19 (CH. 3-4)

2

2

Table 24. Relationship between P4ES1N port card and A4ES1 access card.

Port Card acronym Port Card Slot Access Card acronym Access Card Slot P4ES1N 7 A4ES1 2 (CH. 1 to 4) P4ES1N 8 A4ES1 3 (CH. 1 to 4) P4ES1N 9 A4ES1 4 (CH. 1 to 4) P4ES1N 10 A4ES1 5 (CH. 1 to 4) P4ES1N 11 A4ES1 16 (CH. 1 to 4) P4ES1N 12 A4ES1 17 (CH. 1 to 4) P4ES1N 13 A4ES1 18 (CH. 1 to 4) P4ES1N 14 A4ES1 19 (CH. 1 to 4)

One or more 1+N (N ≤ 7) EPS revertive protection scheme can be created (for more detail see point [3] of para. 3.13.1 ). In case of EPS configuration the following configuration rules must be respected:


- Insert the special protection access card (HPROT) associated to the protecting port card following the rule reported in Table 24. ( for example if the “protecting port card” has been inserted in slot 7, the ” protection access card HPROT” must be inserted in slot 2).

The STM-4 and STM-16 high speed port card does not need Access Card because the physical termination of the channel is on the port itself. Table 25. Relationship between ETH-MB port card and ETH-ATX access card.

Port Card acronym Port Card Slot Access Card acronym Access Card Slot ETH-MB (CH. 1 to 11) 7 ETH-ATX 2 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 8 ETH-ATX 3 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 9 ETH-ATX 4 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 10 ETH-ATX 5 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 11 ETH-ATX 16 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 12 ETH-ATX 17 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 13 ETH-ATX 18 (CH. 12 to 25) ETH-MB (CH. 1 to 11) 14 ETH-ATX 19 (CH. 12 to 25)

Table 26. Relationship between ETH-MB port card and GETH-AG (1.25 Gb/s) access card.

Port Card acronym Port Card Slot Access Card acronym Access Card Slot (N.B.)ETH-MB (10/100 Mb CH.1 to 11)

7 GETH-AG 2 (Gigabit CH. 1 and 2)

ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


ETH-MB (10/100 Mb CH.1 to 11)


3

3

N.B. The following channels are made available (max quantity) when GETH-AG is used in conjunction with ETH-MB:

- up to two Gigabit Ethernet interface on the access card GETH-AG;in this configuration only the two upper interfaces present on the access card can be used for Gbit Ethernet application.

- up to eleven 10/100 Mbit Ethernet interfaces on the ETH-MB. Table 27. Relationship between ISA ES-16 port card and and ETH-ATX access card.

Port Card acronym Port Card Slot Access Card acronym Access Card Slot ISA ES-16 7 ETH-ATX 2 ISA ES-16 8 ETH-ATX 3 ISA ES-16 9 ETH-ATX 4 ISA ES-16 10 ETH-ATX 5 ISA ES-16 11 ETH-ATX 16 ISA ES-16 12 ETH-ATX 17 ISA ES-16 13 ETH-ATX 18 ISA ES-16 14 ETH-ATX 19

Table 28. Relationship between ISA ES-16 port card and and GETH-AG access card.

Port Card acronym Port Card Slot Access Card acronym Access Card Slot ISA ES-16 7 GETH-AG 2 ISA ES-16 8 GETH-AG 3 ISA ES-16 9 GETH-AG 4 ISA ES-16 10 GETH-AG 5 ISA ES-16 11 GETH-AG 16 ISA ES-16 12 GETH-AG 17 ISA ES-16 13 GETH-AG 18 ISA ES-16 14 GETH-AG 19

Table 29. Relationship between ISA-PR port card and 16FEA-PR or 2GBA-PR access cards.

Port Card acronym

Port Card Slot Access Card acronym

Access Card Slot

ISA-PR 8 16FEA-PR or 2GBA-PR

2,4

ISA-PR 12 16FEA-PR or 2GBA-PR

16,18

4

4

Figure 35. STM-4 optical port card front view

ACRONYM SLOTS

S-4.1N 7,8,9,10,11,12,13,14

L-4.1N 7,8,9,10,11,12,13,14

L-4.2N 7,8,9,10,11,12,13,14

5

5

ACRONYM SLOTS

P4S4N 7, 9, 11, 13

LEGENDA (1) Channel #1 (N.B.) (2) Channel #2 (N.B.) (3) Multicolor LED:

Red led - local unit alarm Green led - in service unit

NOTE: the unit can be equipped with optical modules.

Figure 36. 4 x STM–4 port card – front view

6

6

Figure 37. STM–16 optical front view

ACRONYM SLOTS

S-16.1N 7,9,11,13

L-16.1N 7,9,11,13

L-16.2N 7,9,11,13

7

7

Figure 38. I–16 PORT SFF (intra–office)

ACRONYM SLOTS

I-16.1ND 7, 9, 11, 13

8

8

Figure 39. STM–16 SFP port optical front view

ACRONYM SLOTS

CO-16 7, 9, 11, 13

9

9

ACRONYM SLOTS

ETH-MB 7,8,9,10,11,12,13,14

LEGENDA (1)-(11) Ethernet channels

(12) not used (13) Bicolor LED:


Figure 41. ISA - Ethernet port front view

10

10

ACRONYM SLOTS

GETH–MB 7,8,9,10,11,12,13,14

LEGENDA (1)-(4) Gigabit Ethernet channels

(5) Bicolor LED:


(6) Factory used only

Figure 42. ISA– Gigabit ETHERNET board

11

11

Figure 43. ISA – ES4–8FE port front view

ACRONYM SLOTS

ES4-8FE 7,8,9,10,11,12,13,14

12

12

ACRONYM SLOTS

ISA-ES1 8FE 7,8,9,10,

11,12,13,14

LEGENDA (1) to (8) Ethernet channels (9) Channel status indicators:

Yellow: active channel Yellow blinking: channel with traffic

(10) not used (11) Microprocessor restart Key (12) Bicolor LED: Red led - local unit alarm Green led - in service unit

Figure 44. ISA - ES1 8FE port front view

13

13

Figure 45. ISA - ES1 8FX port front view

ACRONYM SLOTS

ISA-ES1 8FX 7,8,9,10,11,12,13,14

14

14

Figure 46. ISA ES–16 front view

ACRONYM SLOTS

ISA-ES16 7,9,11,13

15

15

ACRONYM SLOTS

CONGI 1, 20

LEGENDA (1) Power (2) Housekeeping and remote alarm (3) Rack lamps (not used on CONGI in slot

20) (4) QMD (Q2) (not used on CONGI in slot 20) (5) I/O BNC for Q3 10 base 2(not used on

CONGI in slot 20) (6) RJ45 for Q3 10 baseT (not used on CONGI

in slot 20) (7) Bicolor LED:


Figure 52. Control and General interface

16

16

ACRONYM SLOTS

SERGI 20

LEGENDA (1) Power Auxiliary channel (2) Auxiliary channel:

2 channel G.703 2 channel RS232 2 channel V.11

(3) Aux and Sync. 2Mbit/s J1- 2MHz Input (T3) or 2Mbit/s Input (T6) J2- 2Mbit/s Input channel J3- 2MHz Output (T4) or 2Mbit/s Output (T5) J4- 2Mbit/s Output channel

(4) Four wire telephone extertion point (RJ11)

(5) Z1-Z4 EOW zone selection LEDs (6) L1-L2 LEDs status for selective and

multiple call (7) Telephone jack (8) Line seizure key (9) EOW zone selection key (10) Reset command key (11) Bicolor LED:


Figure 53. SERGI card

17

17

ACRONYM SLOTS

ESERGI 20

LEGENDA (1) Power connector (2) Auxiliary channel:

2 channel G.703 2 channel RS232 2 channel V.11

(3) 2MHz or 2Mbit/s input B/A (4) 2Mbit/s for AUX input /output (5) 2MHz or 2Mbit/s output (6) Four wire telephone extertion point

(RJ11) (7) Z1-Z4 EOW zone selection LEDs (8) L1-L2 LEDs status for selective and

multiple call (9) Telephone jack (10) Three buttons for:

Line seizure key EOW zone selection key

Reset command key (11) Bicolor LED:


Figure 54. ESERGI card interface

18

18

ACRONYM SLOTS

SYNTH16 5,16

LEGENDA (1) Reset command key (2) Channel #1 (3) Lamp test pushbutton (4) Personal computer connector (F interface)(5) Red led –Urgent alarm (Critical or Major ) (6) Red led –Not Urgent alarm ( Minor ) (7) Yellow led – Alarm storing (Attended) (8) Yellow led – Abnormal condition (9) Yellow led – Indicative Alarm (Warning) (10) Green led – When on it means active

unit,and when off it means standby unit. (11) Bicolor LED:


(12) Alarm storing pushbutton (Attended)

Figure 55. SYNTH16 card - front view

19

19

ACRONYM SLOTS

A63E1A (75Ohm)

2,3,4,5,16,17,18,19

A63E1B (120Ohm)

2,3,4,5,16,17,18,19

LEGENDA (1) channel #1-7 (2) channel #8-14 (3) channel #15-21 (4) channel #22-28 (5) channel #29-35 (6) channel #36-42 (7) channel #43-49 (8) channel #50-56 (9) channel #57-63

Figure 57. 63 X 2 Mbit/s access card

20

20

ACRONYM SLOTS

LPROT 2 to 5, 16 to 19

HPROT 2, 4, 16, 18

LEGENDA (1) Bicolor LED: Red led - local unit alarm Green led - in service unit

Figure 60. Low/High Speed protection - front view

21

21

ACRONYM SLOTS

A2S1 2,3,4,5,16,17,18,19

LEGENDA (1)Channel #3 (N.B.) (2)Channel #4 (N.B.) (3)Bicolor LED: Red led - local unit alarm Green led - in service unit

N.B.- The unit can be equipped with electrical or optical modules .

Figure 61. 2 x 140/STM-1 adapter (access card) - front view

22

22

ACRONYM SLOTS

A3E3 2,3,4,5,16,17,18,19

A3T3 2,3,4,5,16,17,18,19

LEGENDA (1) Channel #1 (2) Channel #2 (3) Channel #3 (4) Bicolor LED: Red led - local unit alarm Green led - in service unit

Figure 62. 3 X 34/45 Mbit/s 75 ohm access card

23

23

ACRONYM SLOTS

A4ES1 2,3,4,5,16,17,18,19

LEGENDA (1) Channel #1 (2) Channel #2 (3) Channel #3 (4) Channel #4 (5) Bicolor LED: Red led - local unit alarm Green led - in service unit

Figure 67. 4 X STM-1 access card

24

24

MODULE ACRONYM

EQUIPED ON PORTS

S-1.1

L-1.1

L-1.2

MM1

P4S1N P4ES1 ATM4X4 A2S1 SYNTH4

Figure 68. STM-1 or STM-4 optical module

25

25

MODULE ACRONYM

EQUIPED ON PORTS

ICMI P4S1N P4ES1 ATM4X4 A2S1 SYNTH4

Figure 69. STM-1 or 140 Mbit/s electrical module

26

26

Figure 70. Relationship between SFP modules and housing boards

27

27

Figure 75. Optical Booster card front view

ACRONYM SLOTS

BST10 2,4,16,18

BST15 2,4,16,18

BST17 2,4,16,18

28

28

Figure 76. SYNTH16 Optical module

29

29

3.2 Connections sub-system This sub-system allows connections between any SDH, SONET, PDH or ISA (Integrated Service Adapter) ports (see Figure 93. ).

The connections can be realized at VC-12, VC-3, and VC-4 level using a not blocking matrix present on the COMPACT unit.

Several types of connections may be established, such as: 　 Unidirectional Point to Point 　 Unidirectional Point to Multipoint 　 Bidirectional Point to Point

The maximum matrix cross connection capability can be 96 x 96 STM-1 equivalent port at VC-4 level or 64x64 STM-1 equivalent port at VC-12 / VC-3 level + 32x32 equivalent port at VC-4 level.

The following table illustrates the connections for each unit: Table 33. High Order/Low Order connections for 1662SMC

STM-1, STM-4, STM-16 ports

OC3 ports

140 Mbit/s ports

34 Mbit/s 45 Mbit/s

ports

2 Mbit/s ports

PORTS Structure AU-4 TU-3 TU-12 AU-3 VC-4 VC-3 VC-12

STM-1,

STM-4,

STM-16

AU-4 Yes - - - Yes - -

TU-3 - Yes - Yes - Yes - TU-12 - - Yes - - - Yes OC3 AU-3 - Yes - Yes - - - 140 Mbit/s VC-4 Yes - - - Yes - - 34Mbit/s 45Mbit/s

VC-3

-

Yes

-

-

-

Yes

-

2Mbit/s VC-12 - - Yes - - - Yes The above connections allows the 1662SMC to realize Multi Line Terminal configuration, Add/Drop configuration and Mini Cross-Connect configurations in linear links, rings, and mashed network as describe in Chapter 1.

AU4-4C and AU4-16C concatenated signals can also be cross connected between any STM-4 and STM-16 ports.

Examples of connection type are shown in Figure 93. : 　 connections between 2 Mbit/s ports and STM-1 ports 　 connections between 34 Mbit/s ports and STM-1 ports 　 connections between 45 Mbit/s ports and STM-1 ports 　 connections between 140 Mbit/s ports and STM-1 ports 　 VCn connections between STM-1 ports and STM-4 ports 　 VCn connections between STM-1 ports and STM-16 ports 　 VCn connections between STM-4 ports and STM-16 ports 　 VCn connections between ports of the same type 　 etc.

The maximum quantity of interconnections depends on the matrix capacity .

30

30

4xANY

63x2 Mbit/s 34/45 Mbit/s 140 Mbit/s STM-1

NOTES:

MATRIX

(2)

(3)(4)(5)

(1) (1) (1) (1)

(1) (1)

(2)

(3)

(4)

(5)

(1) 2 Mbit/s to 2 Mbit/s connections, 34Mbit/s to 34 Mbit/s connections,45 Mbit/s to 45 Mbit/s connections, 140 Mbit/s to 140 Mbit/s, 155 Mbit/s to 155 Mbit/s

STM-1 to STM-4/STM-16 connections; ISA to STM-1/STM-4/STM-16

140 Mbit/s to STM-1/STM-4/STM-16 connections

34 or 45 Mbit/s to STM-1/STM-4/STM-16 connections

STM-4 to STM-4, STM-16 to STM-16, 4xANY to 4xANY, OC3 to OC3.

main

MATRIX spare

STM-4 STM-16

2 Mbit/s to STM-1/STM-4/STM-16 connections

access card access card access card access card

"Main"

"Spare"

ISA

access card

ISA = ATM Matrix, PR_EA Matrix, ES and Ethernet boards

units

4 X 4 X

access card

4xOC3

STM-16

(1)

(6) 4xANY to STM-4/STM-16 connections

(7) OC3 to STM-1/STM-4/STM-16 connections

(6)

(7)

Figure 93. High Order/Low Order connections for 1662SMC

31

31

3.13 Protection sub-system The types of protections are:

　 Equipment protection (EPS)

The EPS protection is supported on the 1662SMC equipment for the following cards :

Equipment Boards Protection Scheme Number of protection schemes

Mode

Matrix 1+1 1 Not revertive

Low Speed ports :

- 63x2Mbit/s

N+1 (N max = 3) 2 Revertive

High Speed electrical ports :

- 4xSTM-1 elect.

- 3x34/45Mbit/s

N+1 (N max=7) 4 Revertive

ATM matrix 4x4 1+1 4 Not revertive

ATM matrix 8X8 1+1 2 Not revertive

ISA ES16 1+1 4 Not revertive

MPLS boards

-PR_EA Matrix 4xEthernet

-PR_EA Matrix 1xGB-Ethernet

1+1

1+1

2

2

Not revertive

Not revertive

N.B. Note that for the LS and HS ports, the protection scheme 1+1 is a particular case of an 1+N EPS protection scheme (is then revertive).

　 Network protections:

- MSP (Multiple Section linear trail Protection)

　 1+1 linear single-ended 　 1+1 linear dual-ended 　 1 : N linear dual-ended

- SNCP/I and SNCP/N It is used on ring, linear and mesh network topology. Switching occurs on the path, selecting

(Rx side) the signal transmitted to both Tx A and Tx B ( A and B are two different directions) sides.

- Drop & Continue It is an architecture to connect sub-networks, in order to improve traffic availability.

- Collapsed dual node ring interconnection It is an architecture to connect sub-networks, in order to improve traffic availability with

hardware resource reduction (two nodes collapse in one node).

32

32

- Collapsed single node ring interconnection It is an architecture to connect sub-networks, in order to improve traffic availability with

hardware resource reduction (four nodes collapse in one node).

- 2F MS-SPRING, 2 fibres Multiple Section Shared Protection

The switching information is also indicated on the Craft Terminal screen.

3.13.1 EPS Protections

[1] COMPACT ADM card protection

The positions of main and spare MATRICES are fixed :

　 Slot 6 : COMPACT ADM main

　 Slot 15 : COMPACT ADM spare

[2] Low Speed (LS) port protection (See Figure 172. )

As Low Speed ports (LS) are intended the 2 Mbit/s ports.

Up to 8 LS ports can be housed in the subrack.

For the relation between LS ports and access cards refer to para 2.3.

Two protection groups N+1 revertive can be created , depending on the equipment configuration.

The spare card position can be assigned in a flexible way . The only constraint are the following :

　 the access card corresponding to the protecting card must be an LPROT card.

　 the LPROT card can be plugged at the right or left side of the access card group.

　 the main/spare ports have to be adjacent.

The positions of main and spare P63E1 are optional. The following is an example (see Figure 173. ):

　 slot 8 : P63E1 main

　 slot 7 : P63E1 spare

The P63E1 port can manage up to 63 x 2 Mbit/s port. Sixty-three bidirectional links are used for each connection between P63E1 port and A63E1 or A21E1 access card.

The main P63E1 ports are connected in a fixed way to A63E1 or A21E1 access cards using point-to-point connections.

The spare P63E1 port is connected to LSPROT card also using point-to-point connections. (refer to para 2.3)

Under alarm condition, the signal transmitted and received from the main port is switched towards the

LSPROT card, and then connects to the spare port.

In the following a generic description of the access card is given:

Input side Under normal operating condition, the signal received from the line is sent to the 63 x 2 Mbit/s pertaining port card. Under alarm condition, the signal received from the line is switched towards the LSPROT card. The switching command SEL is received from the RIBUS I/F block. A protection block is present to protect the incoming signal against spikes (G.703).

Output side Under normal operating condition, the signal received from the main port is sent to the line. Under alarm condition, the signal received from the spare port is switched towards the LSPROT card and

33

33

then sent to the line. The SEL command, received from the RIBUS I/F block, select the signal to sent to the line The LSPROT card is used to realize EPS protection for Low Speed ports. It realizes the connection between the spare port card and LS protection bus if protection request. The switches to select between main links and protection links are located on the access cards and managed by the RIBUS block. The switch is activated in case of failure. Figure 172. shows the connection between P63E1 main port, P63E1 spare port ,access card A63E1 or A21E1 and LSPROT card.

63x2 Mbit/ sMAIN PORT CARD

63x2 Mbit/ sSPARE PORT CARD

LSPROT. CARDACCESS CARD

COMPACTADM(SYNTH)

DATA DATA

RIBUS

63 main links

2Mbit/ s from/ to DDF

63 protection links

switchSlot 2 Slot 8Slot 7Slot 3

63 protection bus

Figure 172. Low Speed Link Connections

34

34

Figure 173. Example of Low Speed port EPS protection scheme

[3] High Speed (HS) port protection (See Figure 174. and Figure 175.)

As High Speed ports (HS) are intended the 34 Mbit/s , 45 Mbit/s and 155 Mbit/s speed ports. Up to 8 HS ports can be housed in the port area. For the electrical HS ports the corresponding access cards have to be put in the access area with fixed relations (refer to para 2.3 ).

More than one protection group N+1 revertive can be created , depending on the equipment configuration. For each group N + 1 protected group the revertive mode is supported.

The spare card position can be assigned in a flexible way . The only constraint are the following :

　 the access card corresponding to the protecting card must be an HPROT card 　 the HPROT card has to be plugged at the left side of the access card group 　 the main/spare ports have to be adjacent. 　 the protecting card has to be plugged at the left side of the protected group of ports 　 the protecting/protected group of ports have to be of the same type. The only exception is for the

3x34/3x45 port card : it can be a protecting card for both 3x34 or 3x45 port card i.e. a mixed group of ports can be protected by the same spare card.

Figure 174. gives some examples of EPS protection scheme.

35

35

EXAMPLE 1: 4 x STM-1 Electrical port EPS protected P4ES1 N+1 (N=1)

EXAMPLE 2: 3 x34Mbit/s EPS protected P3E3/T3 N+1 (N=1)

36

36

EXAMPLE 2: 3 x45Mbit/s EPS protected P3E3/T3 N+1 (N=1)

Figure 174. Example of EPS protection schemes

Manual Switch and force switch commands can be given via software by the user to activate the spare cards. The protections status is reported to the EC.

Figure 175. shows the High Speed connections for the 2+1 protection.

Each access card is connected also with the previous one and with the next one; in this way N+1 protection is provided using HPROT card in last position at the left side of the access cards pertaining to the protected port group.

Each electrical High Speed port can manage up to 4 HS streams.

Input side ( from the access module point of view)

The CMI encoded signal coming from the line and connected to the access card is NRZ decoded. The clock CK is extracted from the data. By means of the back panel connections , NRZ data and CK are forwarded to the pertaining main port and to the spare port. Moreover NRZ data and Clock are sent to the next access card if present to perform N +1 protection. The spare port should not be devoted to a specific main port therefore a distributed switch matrix (on every access card ) is used to allows the signal to gain the spare port. The command criteria for the distributed switch matrix comes from the matrix unit via serial interface.

Output side ( from the access module point of view )

The signal , coming from Main and Spare ports via back panel connections , is coded into CMI format. The spare port is not devoted to a specific main port, therefore the signal transmitted from the spare is distributed to all access cards involved in the protection scheme. The connections are functionally point-to-multipoint but physically every access card realizes a point -to-point connection towards the previous and the next access card using a buffer to decouple and regenerate the signal.

Hardware failures types

37

37

The hardware failures causing automatic EPS protection switch can be grouped as :

- failures causing the internal equipment link loss as powering KO, Clock loss, card missing (referred as LOS/LOF)

- failures causing traffic loss (the internal link is preserved) as for instance unlocked oscillator, optical module defective, electrical interface defective and so on.

- failures not causing traffic loss nor internal link loss but causing loss of management as ISBP failure or SPI failure.

Moreover some failures can cause equipment malfunctioning ( as remote inventory fault, laser degrade, loss of DC/DC synchronism ). These hardware faults are signalled to the management system and do not provokes an automatic switch.

38

38

Figure 175. High Speed connections

39

39

ANEXO 1: PARAMETROS OPTICOS

40

40

41

41

Table 72. Parameters specified for Optical Booster

CHARACTERISTICS UNIT VALUES

BOOSTER + 10 dBm + 15 dBm + 17 dBm Maximum Output power dBm +12 + 17 + 19 Minimum Output power dBm +10 + 15 + 17 Maximum Input power dBm + 4 + 4 + 4 Minimum Input power dBm - 6 - 6 - 6 Polarization Depending Gain dB < 0.5 Reverse ASE power level dBm ≤ -20 Input Optical Return Loss (ORL) dBm ≥ 27 Pump Leakage to Input dBm ≤ -36 Pump Leakage to Output dBm ≤ Pout-30 Maximum ORL tolerable at Input dB > 27 Power Wavelength Bandwidth nm 1530~1565

42

42

document2

Documents

total 21ch

range

relationship