cpe08 series user manual en 20141209

CPE08 Series

Ethernet to E1 Converter (ITU-T G.8040)

User Manual

CPE08 Series User Manual

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Foreword

Thank you for purchasing our products. Please read this manual carefully before using the product. Always observe

standard safety precautions during installation, operation and maintenance of this product.

Notice

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE

SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. ALL STATEMENTS, INFORMATION, AND

RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED

WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL

RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

Every effort has been made to ensure that the information in this manual is accurate, comprehensive, clear and

up-to-date. However, there may be changes in some part of document, therefor customer can contact our

technical support to obtain the latest update.

History of Revisions

Date Version Remark

July, 2014 V1.1 Renewal


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Contents

Foreword ........................................................................................................................................................................ 2

Chapter 1 Product Description................................................................................................................................... 5

1.1 General Overview ........................................................................................................................................... 5

1.2 Part Number ................................................................................................................................................... 5

1.3 Main Features................................................................................................................................................. 6

1.4 Power Supply and Dimension ...................................................................................................................... 6

Chapter 2 Equipment Interfaces ................................................................................................................................ 7

2.1 E1 Interface .................................................................................................................................................... 7

2.2 10/100BASE-TX Fast Ethernet Interface .................................................................................................... 7

2.3 100BASE-FX Fast Ethernet over Fiber Optic Interface ............................................................................. 7

2.4 Management Interface .................................................................................................................................. 7

2.4.1 SNMP Interface ....................................................................................................................................... 7

2.4.2 CONSOLE (RS232) Interface ................................................................................................................ 8

2.5 Front Panel ..................................................................................................................................................... 8

2.5.1 CPE04/CPE08/CPE16 120Ohm Balanced Front Panel.................................................................... 8

2.5.2 Front Panel LED Indicator .................................................................................................................... 8

2.6 Rear Panel ...................................................................................................................................................... 9

2.6.1 CPE04/CPE08/CPE16 120Ohm Balanced Rear Panel ..................................................................... 9

Chapter 3 Equipment Working Principles ............................................................................................................... 10

Chapter 4 Installation ................................................................................................................................................ 11

4.1 Package Content .......................................................................................................................................... 11

4.2 Mechanical Installation............................................................................................................................... 11

4.2.1 Site Selection ........................................................................................................................................ 11

4.2.2 Equipment Unpacking ......................................................................................................................... 11

4.2.3 Equipment Installation ........................................................................................................................ 12

4.3 Power On ...................................................................................................................................................... 12

Chapter 5 Maintenance and Troubleshooting ........................................................................................................ 14

6.1 Maintenance ................................................................................................................................................. 14

6.2 Troubleshooting ........................................................................................................................................... 14

6.2.1 Troubleshooting Flow .......................................................................................................................... 15


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6.2.2 General Troubleshooting .................................................................................................................... 15

6.2.3 Alarm Troubleshooting........................................................................................................................ 16

Appendix A Management Cable RJ-45 to DB-9 Female Adapter ........................................................................... 18

Appendix B E1 Cable and Connector ....................................................................................................................... 19


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Chapter 1 Product Description

1.1 General Overview

CPE08 series is a converter for interconnecting Fast Ethernet (FE) with E1 which is based on Ethernet-over-PDH (EoPDH)

technique, a new breed of products integrating advanced Ethernet bridging with fully channelized TDM capabilities.

CPE08 series, are inverse multiplexer for providing Ethernet services bonded over multiple E1s (4/8/16 E1s), breaking the

bandwidth restriction of single E1. The CPE08 series will help carriers and enterprises to make full use of the traditional

TDM network in this TCP/IP Era, utilize legacy E1 resources in the public network to build broadband Ethernet data

network rapidly.

The CPE08 series Interface Converter is an Ethernet extension device utilizing TDM telecom infrastructure (the telecom

network of E1s/PDH/SDH carrying E1s). It converts the Ethernet data into E1 frame format for transmission over the

existing TDM (E1) links and then re-converts the E1 back into Ethernet data at far-end terminal, to bridge two Ethernet

LANs over the existing E1-based telecom network. The device can effectively utilize the redundant bandwidth of telecom

operators’ existing TDM network to transport Ethernet data with low investment.

CPE08 series comply with ITU-T G.8040 standard – to encapsulate and map Ethernet packets into PDH timeslots. The

equipment provides 4×10/100BASE-TX Fast Ethernet interfaces. CPE08 series can interoperate with the third party

devices with the same standard, can be flexibly configured and easily maintained, also provide complete network

management functions.

1.2 Part Number

Standalone Unit

Part No E1 Interface 10/100BASE-TX Management

Interface Structure

CPE04 4 4 SNMP, Console 19”×1U




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1.3 Main Features

Adopt large-scale chips for simple circuit, low power consumption and high reliability.

Provide 4/8/16 × E1 interface with 120ohm balanced optional.

Provide up to 4×10/100BASE-TX ports with L2 local switching.

Comply with ITU-T G.8040 standard- mapping GFP into PDH load.

Support 802.1q VLAN tagging.

Support QoS (Quality of Service) port-based priority and 802.1p CoS priority.

Support auto negotiation, MDI/MDI-X auto-sense, 10M/100M, full/half duplex.

IEEE802.3x flow control for pause frame.

Selectable data rate based on ports.

Offer maximum frame length 1552 bytes transmission unit.

Support VCAT function based on ITU G.7043; auto-adaptation the maximum 240ms time delay difference.

Suppress broadcast storm.

Offer full-scale data rates n×2M without any packet loss.

Support traffic load balance and auto fault-recovery functions on E1 link.

Provide E1 facility loopback.

Provide SNMP and Console management interface.

Support remote management and online remote update software.

Optional AC 220V or DC -48V power supply.

1.4 Power Supply and Dimension

DC Power Supply -48V DC with range: -36V ~ -72V

Power Supply Ripple ≤240mVp-p

AC Power Supply 220V AC ± 20%, 50Hz

Power Consumption ≤10W

1U×19” Dimension (W×D×H) 483×175×45 mm


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Chapter 2 Equipment Interfaces

2.1 E1 Interface

Standard: ITU-T G.703

Line Rate: 2048kbps ± 50ppm

Line Code: HDB3

Framing: unframed

Line Impedance: 75ohm unbalanced or 120ohm balanced optional

Electrical Characteristic: comply with ITU-T G.703 recommendation

Jitter Performance: comply with ITU-T G.823 recommendation

Electrical Level: ±2.37V±10% or ±3.00V±10%

Connector: BNC (75Ω unbalanced) or RJ-45 (120Ω balanced)

2.2 10/100BASE-TX Fast Ethernet Interface

Interface: 10/100BASE-TX

Interface protocol: compliant with IEEE 802.3u, IEEE 802.1q, IEEE 802.3x

Data rate: 10/100Mbps auto-negotiation or force mode

Duplex mode: full duplex, half duplex

Interface line sequence: MDI/MDI-X auto-sense

Range 100 meters/328 feet on UTP category 5 or 6 cable

Connector: RJ-45 electrical interface

2.3 100BASE-FX Fast Ethernet over Fiber Optic Interface

Interface: 100BASE-FX

Interface protocol: compliant with IEEE802.3u, IEEE 802.1q, IEEE 802.3x

Data rate: 100Mbps

Transmission optical power: -3dBm ~ -8dBm

Receiving sensitivity: -33dBm ~ -40dBm

4B5B encoding and NRZI line code

Applicable fiber: single-mode, multi-mode

Connector: FC/SC

2.4 Management Interface

2.4.1 SNMP Interface

Interface: 10/100BASE-T Ethernet

Comply with IEEE802.3 standard


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Connector: RJ-45

2.4.2 CONSOLE (RS232) Interface

Interface: RS-232 serial port

Baud rate: 57600bps

Connector: RJ-45

2.5 Front Panel

2.5.1 CPE04/CPE08/CPE16 120Ohm Balanced Front Panel

CPE04SNMP

CONSOLE LAN1

S

L

STA

RUN

S

L

S

L

S

L

S

L

LAN2

LAN3

LAN4 E1P2

E1P1 E1P3

A

W

A

W

A

W

A

W

E1P4

CPE08SNMP

CONSOLE LAN1

S

L

STA

RUN

S

L

S

L

S

L

S

L

LAN2

LAN3

LAN4 E1P2

E1P1 E1P3

A

W

A

W

A

W

A

W

A

W

A

W

E1P4

E1P5

E1P6

A

W

A

W E1P7

E1P8

CPE16SNMP

CONSOLE LAN1

S

L

STA

RUN

S

L

S

L

S

L

S

L

LAN2

LAN3

LAN4 E1P2

E1P1 E1P3

A

W

A

W

A

W

A

W

A

W

A

W

E1P4

E1P5

E1P6

A

W

A

W E1P7

E1P8 E1P10

E1P9 E1P11

A

W

A

W

A

W

A

W

A

W

A

W

E1P12

E1P13

E1P14

A

W

A

W E1P15

E1P16

Figure 2-1 CPE04/CPE08/CPE16 120Ω Balanced Front Panel

As shown in Figure 2-1, CPE04/CPE08/CPE16 120Ohm balanced’s front panel provides uplink interface, service interface

and network management interface, the interface from left to right in the following order:

1) SNMP management interface: with Ethernet interface and using RJ45 connector

2) CONSOLE management interface: RS232 serial port using RJ45 connector

3) Ethernet service interface: 4×10/100BASE-TX interface (LAN1~LAN4) using RJ45 connector

4) E1 uplink interface: 4/8/16×E1 120Ω balanced interface using RJ45 connector

2.5.2 Front Panel LED Indicator

CPE08 series provides a complete series LED indicators, for rapid fault-diagnosis and provide comprehensive information.

Through front panel, user can examine working state and current alarm, and the information of the equipment.

Table 2-2 Front Panel LED Indicator

Indicator Color State On State Off State Flashing

RUN Green System is not working

properly

System doesn’t work System is working

properly

STA Yellow Minor alarm detected on

the system

No alarm in the system STA and RUN blinking

by turns at 1Hz


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frequency: system is

wrong or unsuccessful

initialization.

STA and RUN blinking in

the same time means there

is any E1 loopback

W (WORK) Green E1 is connected No connection Blinking along with RUN

flashing when there are

any loopbacks for E1 or

any bit errors at local site.

A (AIS) Yellow There are AIS alarms on

E1 or there are bit errors

at local site.

Operating Blinking along with RUN

flashing when there is any

loss of frame or loopback

on E1 at local site.

Inversed blinking with

RUN flashing when there

is any loss of frame at

remote site.

S (SPEED) Green 100Mbps 10Mbps NA

L (L/A) Green Link is present. Indicates

that a link is established

with a link partner.

Link down or no

connection

Traffic is present

F (FULL) Green Optical port is in full

duplex mode

Optical port is in half

duplex mode

NA

L (L/A) Green Link is present in optical

port

Link down or no optical

connection

Traffic is present

2.6 Rear Panel

2.6.1 CPE04/CPE08/CPE16 120Ohm Balanced Rear Panel

POWER

ON OFF

+Vin -Vin

DC POWER

Figure 2-2 CPE04/CPE08/CPE16 120Ω Balanced with AC/DC Power Supply Rear Panel

As shown in Figure 2-5, CPE04/CPE08/CPE16 120Ohm balanced rear panel provides AC or DC power supply interface.

AC power supply adopts C14 panel mounted male connector (inlet).


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Chapter 3 Equipment Working Principles

4~16 E1s is bounded into one broadband channel and Ethernet data is transmitted over those channels via special-purpose

integrated chipsets, so as to leverage the legacy E1 transmission channel for broadband transmission of data. The

equipment can be managed through SNMP or CONSOLE interface to meet user’s different requirements and demands for

the network.

SDRAM & Controller

Management SystemConsole SNMP

10

0B

AS

E-T

X1

00

BA

SE

-TX

10

0B

AS

E-T

X1

00B

AS

E-T

X1

00

BA

SE

-FX

Ethernet Switch

Eth

ern

et R

ece

ive

Bu

ffer &

Co

ntro

ller

Eth

ern

et T

ran

sm

it

Bu

ffer &

Co

ntro

ller

Framer

Deframer

Framer

Deframer

Framer

Deframer

Framer

Deframer

HDB3

Codec

HDB3

Codec

HDB3

Codec

HDB3

Codec

U-G

FP

D-G

FP

VC

AT

& L

CA

S

LO

OP

CO

NT

RO

LL

ER

RS232 Ethernet

E1_1

E1_2

E1_3

E1_n

LAN1

LAN2

LAN3

LAN4

Optical

Eth

Figure 3-1 Block Diagram of Working Principle


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Chapter 4 Installation

4.1 Package Content

Check the contents of the box against the packing checklist. Verify that you received all listed equipment, check the model

and the number of the device and spare parts, including the following:

1 (one) unit CPE08

1 (one) unit AC/DC power cord or adapter plug (depend on your order)

1 (one) user manual

Optional equipment that you ordered, such as network interface cables or special connectors

4.2 Mechanical Installation

4.2.1 Site Selection

Environmental factors can adversely affect the performance and life span of your equipment. Equipment requires a dry,

clean, well-ventilated, and air-conditioned environment.

The installation site should provide proper room with entrance cable routing. For stability and safety, it is always best to

place the heavier equipment below lighter equipment in racks.

4.2.2 Equipment Unpacking

Equipment use a special carton packaging, with anti-shock protection, each box placed a piece of equipment, including the

appropriate accessories, please inspect and check whether it consistent with the packing list.

Step 1. After you have specified the installation location for the equipment, clear up the place and move the

cartons with equipment packed inside close to the installation location;

Step 2. Pay attention to the direction of the package to ensure that the front side is upward;

Step 3. Unpack the cartons and pick out the equipment and accessories.

Step 4. Do not discard the shipping cartons and poly bag when you unpack the equipment. Flatten and store them.

You will need the containers if you need to move or ship the equipment in the future.

The equipment is built-in with sensitive devices. Therefore please handle with care and try to avoid severe

vibration..


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4.2.3 Equipment Installation

4.2.3.1 Installing the Equipment on a Desktop

You can install the equipment on a desktop, table, or other flat surface, follow these steps:

Step 1. Place the unit upside-down on the flat surface. Please choose a sturdy table to make sure the equipment is

safe.

Step 2. Place the power supply unit on a desktop near an AC power source. Do not stack the power supply on the

equipment. We recommend you to place the equipment near an electrical power outlet.

Step 3. A dedicated chassis grounding stud is located in the left side of the rear panel. There is “ ” symbol,

connect the grounding lug properly.

Step 4. The equipment has an excellent thermal design for heat transfer and use of natural cooling mode. The

device must be ventilated, or the installation must allow unrestricted airflow for cooling. Overheating can

cause permanent damage to the unit.

Step 5. Do not place heavy objects on top of equipment.

4.2.3.2 Installing the Equipment in a Rack

Rack-mounting the equipment should follow some steps:

Step 1. Ensure the installation of equipment in a 19"/23" standard rack (compliant with ETS 300119 or IEC

60297). A standard rack-mount kit is included for mounting the equipment in a standard 19-inch (48.3 cm)

equipment rack with two unobstructed outer posts, with a nominal depth (between the front and rear

mounting posts) of 19.25 inches (48.9 cm) and a maximum depth of 32 inches (81.3 cm).

Step 2. The equipment has a built-in L bracket, you will need to prepare the screwdriver to install the chassis in a

rack.

Step 3. Insert the rear of the chassis between the mounting posts.

Step 4. Align the mounting holes in the L bracket with the mounting holes in the equipment rack.

Step 5. Secure the chassis using two 12-24 x 3/4-inch screws per side through the elongated holes in the L

bracket and into the threaded holes in the mounting post.

Step 6. Make sure that the equipment is installed securely. Tighten any loose captive installation screws.

Step 7. The equipment has an excellent thermal design, chassis from steel with excellent heat transfer, use of

natural cooling mode. The device, under the guarantee must be ventilated, or at least stay out of 1U

(4.5cm) of space for heat dissipation, do not place heavy objects on top of equipment.

Step 8. The chassis is automatically grounded when install the equipment into a rack. However, for extra

grounding protection, a dedicated chassis grounding stud is located in the left side of the rear panel. There

is " " symbol, please connect the grounding lug properly.

4.3 Power On

Step 1. After installing the equipment to a designated location, choose the proper power supply either AC power

or DC power will be used, depending on the model ordered.


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Step 2. If equipment adopts DC power supply, use appropriate power wire, with red/blue wire connected with -

48V (low level voltage cable), black wire connected with 0V (GND) (high level voltage cable). Make

sure of firm installation and no short-circuit.

Step 3. If equipment adopts AC power supply, you should use standard power cable. Plug the power cord into a

power receptacle of CPE08 power module and the other end to your power outlets. Power cable uses

power cord with a CEE 7/7 plug (European wall socket) at the left end, and an IEC C13 at the right end,

as shown in Figure4-1.

Step 4. Make sure that the power source for -48V DC or 220V AC is normal.

Step 5. Set the power switch to the | (On) position. The green Power LED on the power supply lights, indicating

that the power supply is supplying power to the chassis. The Run LED indicator flashes indicating that

the device is working properly.

Figure 4-1 AC Power Cable


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Chapter 5 Maintenance and Troubleshooting

The maintenance work can be separated into two categories: regular maintenance and troubleshooting. Regular

maintenance is important to ensure that the used equipment stays in good shape. Every system and equipment requires

constant checks to make sure that they are working properly. Failure to check and conduct regular maintenance will cause

complications and may inflict huge losses. This guide also gives general troubleshooting instructions and alarm

troubleshooting instructions that apply to the CPE08 equipment.

6.1 Maintenance

Maintenance generally refers to communication system maintenance. It’s not only limited to this equipment, but also

includes lines/cables, external supporting equipment and site environment. Proper use of preventive maintenance

procedures can keep the CPE08 series equipment in top operating condition and minimize the need for costly, time-

consuming service procedures.

Site Maintenance

Maintenance procedures that you should perform regularly are maintaining your site environment.

Using the LEDs for Maintenance

User mainly obtains alarm information from alarm LED indicators, so user should pay attention to light or

blinking status during daily maintenance. From this aspect, user can examine on whether equipment works

properly or not.

Check on Equipment Alarm through EMS

Network management system can monitor real time performance without terminating traffic. It can also monitor

faults, judge fault type and find fault location. Therefore, it’s an effective tool for preventive maintenance and

fault processing.

There is not necessary for daily adjustment and test for the equipment. Many maintenance rules for analog

equipment do not apply to digital equipment. This equipment only needs regular precautionary monitoring,

instead of precautionary debugging. Do not check equipment if no obvious serious fault occurs in the network to

avoid human error.

6.2 Troubleshooting

Troubleshooting is the identification or diagnosis of "trouble" in the system caused by a failure of some kind. The problem

is initially described as symptoms of malfunction, and troubleshooting is the process of determining the causes of these

symptoms so that it can be solved.


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6.2.1 Troubleshooting Flow

Troubleshooting is a form of problem solving most often applied to repair the failed products or processes. It is a logical,

systematic search for the source of a problem so that it can be solved, and so the product or process can be made

operational again. If you are experiencing trouble with CPE08 equipment, please complete the steps outlined in the

following flow diagram.

Observing the LED indicators

Checking alarm through EMS

Analyze alarm cause

Locating alarm location

Determining troubleshooting method

Perform action or troubleshooting

Clearance

Fault and alarm occur

Figure 5-1 Troubleshooting Flow

6.2.2 General Troubleshooting

This section provides brief procedures for troubleshooting the most common problems encountered when operating

CPE08 series.

Table 5-1 Frequent Problem and Solution

Problem Cause Solution

Abnormal power supply Power is switched off Turn on the power switch button

Loss of power or low voltage The CPE08 requires a constant source of power

to properly function. Input DC power is -48 VDC or input AC power is 220 VAC.


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If LEDs are not illuminated on the AC

power supply, there is no input power or

the power cord is not fully seated or socket

loose

Reseat and tighten it. If the power cord is fully

seated, check the input power.

If LEDs are not illuminated on the DC

power supply, many times the problem is

reversed polarity.

Check the DC input power supply to see if the

positive and negative lead wires are swapped.

Failure of E1 link The impedance for E1 interface is not

matched

Verify the impedance configuration of the

device

Wrong E1connection Make a correction, verify the input and output

cable

Far-end device is not working properly Ensure that the far-end device can operate

properly

Clock configuration In some case, you may select the force mode

with Internal clock

Failure of Ethernet

interface and PC

connectivity

troubleshooting

Ethernet cable is not meet the standard, or

defect

Replace with the standard cable, the cable

coloring pinout (line order) should meet the

standard

Connection with the other equipment

failure

Confirm that the far-end equipment which the

Ethernet cable connected is working normally

Mismatch speed mode Ensure both side equipments use the same

mode, either auto-negotiation or forced mode

The IP address was typed incorrectly Verify that the IP address used to ping the PC

The IP configuration of your PC is not

properly set

Fix the IP configuration, including the IP

address and subnet mask

PC firewall and antivirus software may be

interfering with the operation.

Turn off PC firewall or disable antivirus

6.2.3 Alarm Troubleshooting

This sub section gives CPE08 alarm descriptions and troubleshooting procedures.

Table 5-2 Alarm Troubleshooting

Alarm Index Causes/Descriptions Solution

E1 Channel has AIS alarm Indicates that E1 link problem,

possible causes in the connector, cable,

pinout, DDF rack. There is also

possibility cross conection

Check cross-connection in access network,

check the E1 link.

Note: When alarm events or failure appear, follow the instructions promptly to determine the causes of alarm, if

necessary, please contact us for technical support.


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configuration in access network (third

party device).

E1 Channel has MFI alarm Indicates the CPE08 is not connected

to EA2500, it connect to other far-end

equipment (other manufacturer).

Check cross-connection in access network,

check the E1 link.

10/100 Port Inactive Indicates there is no connection in the

LAN port.

Connect the UTP cable, or ensure the

connector is connected properly.


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Appendix A Management Cable RJ-45 to DB-9 Female Adapter

Management Cable RJ-45 to DB-9 Female Adapter

How to Create Console Cable by Yourself

1. Preparation

DB-9 female adapter

RJ-45 plug

CAT3 or CAT5 or any other category cable

2. How to connect them

Connect 3 signal lines (RXD, TXD, GND), please see the following picture and diagram.

1

2

3

4

5

6

7

8

9

1

2

3

4

5

6

7

8

RJ-45 pinsDB-9 Female pins

TXD

RXD

GND


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Appendix B E1 Cable and Connector

E1 Cable and Connector

The E1-G.703 interface is available in either balanced or unbalanced mode. A unique port adapter supports each type.

Neither the modes nor the cables are interchangeable; you cannot configure a balanced port to support an unbalanced line,

nor can you attach an interface cable intended for a balanced port to an unbalanced port.

75 Ohm unbalance is terminated on a pair of BNC connectors, while 120 Ohm balance is terminated in an RJ-45 plug.

Unbalanced (75-ohm) coaxial cable with BNC connector at each end.

Balanced (120-ohm) cable with RJ-45 connector at each end.

Pin Assignment for 120 Ohm Balance E1 Connector

RJ-45 Pin Number Signal

1 RX+

2 RX-

3 NC

4 NC

5 NC

6 NC

7 TX+

8 TX-


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Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, please

visit our website or directly contact our technical support. Feedback, comments and questions are welcomed.

Thank you!

cpe08 series user manual en 20141209

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