Raisecom RCMS2201 Bedienungsanleitung

Raisecom Technology Co., Ltd

RCMS2201/2401/2601-60 (REV.A)

Modular Ethernet Multiplexer

User Manual

Raisecom Technology Co., Ltd

Cautions

Please read the following notices carefully before installing and

using the device, Raisecom does not respond to any loss that

caused by violating safety notice.

RCMS2201-30 is integrated device that has precise elements,

please avoid violent shakes and impacts, and do not

disassemble or maintain the device yourself. If it is required,

please do it under the guide of our technical staff following in

the steps of anti static. Please contact us if there is any need.

There must be grounding protection for the sake of safety; do

not disassemble the device yourself, we regard it as you waiver

your rights of repair guarantee.

Raisecom Technology Co., Ltd

Contents

1. Overview..........................................................................................................................1

1.1 Main Features ......................................................................................................1

1.2 Part Number Explanation .....................................................................................2

2. Parameters ......................................................................................................................2

2.1 E1 Interface Specification ....................................................................................2

2.2 Fast Ethernet Interface Specification ...................................................................3

2.3 Optical Interface Specification..............................................................................3

2.4 Ambience .............................................................................................................3

3. How to use.......................................................................................................................3

3.1 Description of the Front Panel..............................................................................3

3.2 Dip-switch ............................................................................................................4

3.2.1 SW1 for Working Modes ............................................................................4

3.2.2 Fault-Pass-Through Capability Explanation ...............................................5

3.2.3 E1 Remote Loop-back Test ..........................................................................6

3.2.4 How to Implement Remote Network Management.....................................6

4. Installation and Test.........................................................................................................7

4.1 Inspect after Opening...........................................................................................7

4.2 Preparation before Installation .............................................................................7

4.3 Installation............................................................................................................7

4.3.1 Connecting the Cables...............................................................................7

4.3.2 Function Configuration .................................................................................8

5. Troubleshooting ...............................................................................................................8

6. Appendix A Cable Making................................................................................................9

A.1 E1 Cable Making ....................................................................................................9

A.2 Ethernet Cable Making.........................................................................................10

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1. Overview

RCMS2201/2401/2601-60 Ethernet Multiplexers are fiber-optic transmission devices for

dedicated communication networks, data communication networks, switching networks,

and also for point-to-point networks, medium-sized and small capacity networks. It can

multiplex one E1 channel and one Fast Ethernet on to one fiber-optic cable, and implement

the line-speed transmission of the Ethernet data. RCMS2201-60、RCMS2401-60 和

RCMS2201/2401/2601-6 series is featured by high integration and complete network

management functions. It can be installed into the Raisecom 3U-high 16-slot chassis, or

desktop single-slot chassis, providing various network management functions.

Include the following models:

Model Description

RCMS2201-60-M Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), multimode (DSC), 0~2km

RCMS2201-60-S1 Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode (DSC), 0~25km

RCMS2201-60-S2 Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode (DSC), 10~60km

RCMS2201-60-S3 Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode (DSC), 15~120km

RCMS2401-60-S1

Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode, single strand fiber, dual wavelength, 1310nmTx 1550nmRx (SC-PC),

0~25km

RCMS2401-60-S2

Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode, single strand fiber, dual wavelength, 1310nmTx 1550nmRx (SC-PC),

10~60km

RCMS2601-60-S1

Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode, single strand fiber, dual wavelength, 1550nmTx 1310nmRx (SC-PC),

0~25km

RCMS2601-60-S2

Host-site/remote-site module, 1 10/100Mbps auto-sensing (RJ45), 2 120ohm balanced E1

(RJ45), single mode, single strand fiber, dual wavelength, 1550nmTx 1310nmRx (SC-PC),

10~60km

1.1 MainFeatures

 Low power consumption due to extra large-scale ASIC chips; high reliability due to

4-layer PCB

 Providing 2 E1 channel interface, transparent transmission mode

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 Providing 1 10/100Mbps auto-sensing Ethernet interface

 Providing 1 optical interface, multiplexing E1 and Ethernet data together

 Alarm indications of local and remote equipment

 Supporting E1 link remote loop-back function, easy fault location

 Supporting speed limit on both transmitting and receiving directions of Ethernet

interface, increment 32kbps

 Implementation of SNMP, capable of local and remote management

1.2 PartNumberExplanation

Example

RC MS 2 2 01 – 60 – S2

Single mode optical interface, 10-60 km

2 E1 channel

1 Ethernet interface

Modular, dual-strand fiber-optic

L2 Ethernet switching capability

Multi-service

Raisecom code (RC short for Raisecom)

Note: Equipments that can work in pairs

Host site Remote site

RCMS2201-60-M RCMS2201-60-M

RCMS2201-60-S1 RCMS2201-60-S1

RCMS2201-60-S2 RCMS2201-60-S2

Dual-strand

fiber-optic

equipment

RCMS2201-60-S3 RCMS2201-60-S3

RCMS2401-60-S1 RCMS2601-60-S1

Single-strand

fiber-optic

equipment

RCMS2401-60-S2 RCMS2601-60-S2

2. Parameters

2.1 E1 Interface Specification

Bit rate: 2048Kbps±50ppm

Line code: HDB3

Interface impedance: 120Ωbalanced signal

Electrical characteristic: Compliant to ITU-T G.703

Transfer characteristic: Compliant to ITU-T G.823

Jitter Tolerance: ITU-T G.724

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2.2 Fast Ethernet Interface Specification

IEEE 802.3

IEEE 802.3u

IEEE 802.1d Spanning Tree

IEEE 802.1q VLAN

Support oversized Ethernet data frame up to 1916 bytes

Working mode: 10/100M Auto-Negotiation, Auto-MDI/MDIX (manual configurable)

Flow control: IEEE802.3x and back pressure

2.3 Optical Interface Specification

Bit rate: 150Mbps

Fiber connector: Dual-strand fiber DSC/APC

Single strand fiber SC/PC

Transmission distance: Multimode dual-strand M=0 ~2km

Single mode, dual-strand fiber, S1=0~25 km, S2=10~60km,

S3=15~120km

Single mode, single strand fiber, S1=0~25 km, S2=10~60km

2.4 Ambience

Working temperature: 0 ~ 45℃

Relative humidity: ≤90% (25℃)

3. How to use

3.1 Description of the Front Panel

ETH E1 LOS2

L/R

LOS1

TX RX

LNK/ACT 100M

L/R

ALM

PWR

RCMS2201-60

Power Supply Indicator:

PWR (Power): the green indicator will be lightened when the power supply is in good

condition

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1 2 3 4 5 6 7 8

OFF

Optical Connector:

SC type in the above figure, TX for transmitting direction, and RX for receiving direction

The optical interface type of RCMS2201-60 is DSC/PC,

The optical interface type of RCMS2401-60 and RCMS2601-60 is SC/PC.

L/R ALM (Fiber Local or Remote Alarm)

The red alarm indicator will be lightened when error occurs at local or remote optical

receiving direction. It includes 4 alarm levels: lose of signal, lose of frame, BER

exceeds 10

-3

, and BER exceeds 10

-6

. Users shall inquire the network management

system for alarm details.

ETH Ethernet Interface:

RJ45 socket, unshielded twisted pair

LNK/ACT (Link/Action):

The green indicator will be lightened when the link is in normal condition. It flashes

when transmitting to receiving data.

100M (100Mbps):

The green indicator will be lightened when working at the rate of 100Mbps.

E1 Interface:

RJ45 socket, 120 Ohm balanced signal.

Pin 1, 2 for output of first E1 channel, pin 5, 6 for input of first E1 channel

Pin 3, 4 for output of second E1 channel, pin 7, 8 for input of second E1 channel

L/R LOS1 (Local/Remote Lose Signal of first E1)

E1 alarm of first E1 channel, the red alarm indicator will be lightened when E1 input

loss of frame occurs at the local site; it flashes when E1 input loss of frame occurs at

the remote site. There is no alarm, when no E1 input loss of frame of local and remote

site.

L/R LOS2（Local/Remote Lose Signal of second E1）：

E1 alarm of second E1 channel, definition is same as above.

3.2 Dip-switch

3.2.1 SW1 for Working Modes

SW1 is an 8-bit DIP-switch, as the figure on the right

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Switch OFF (default status) ON

1 Enable Ethernet interface auto-sensing Disable Ethernet interface

auto-sensing

2 a) Ethernet forced 100M when

auto-sensing disabled

b)Invalid when auto-sensing enabled

a) Ethernet forced 10M when

auto-sensing disabled

b) Invalid when auto-sensing enabled

3 a) Ethernet forced full duplex when

auto-negotiation disabled

b) Ethernet forced full duplex when

auto-negotiation failed; invalid when

auto-negotiation success

a) Ethernet forced half duplex when

auto-negotiation disabled

b) Ethernet forced half duplex when

auto-negotiation failed; invalid when

auto-negotiation success

4 Fault Pass Through disabled Fault Pass Through enabled

5 Enable MDI/MDIX auto-negotiation Disable MDI/MDIX auto-negotiation.

Straight-through cable shall be used to

connect to Switch; crossover cable

shall be used to connect to NIC and

Routers

6 First E1 link normal working mode First E1 link remote loop-back

7 Second E1 link normal working mode Second E1 link remote loop-back

8 Auto recognition of network

management channel

Forced remote network management.

Please configure as per the network

topology.

Priority of configuration and command of network management software is higher than

configuration of SW1. Configuration of SW1 is invalid when using network management

software to configure.

Note: The other dip-switch SW2 is a 2-bit switch, which shall be used by manufacturing

people. Users are not advised to change the default status.

3.2.2 Fault-Pass-Through Capability Explanation

When Fault-Pass-Through capability is enabled, there are 3 situations that we call it a link

fault.

1．The equipment will monitor the status of remote Ethernet interface. When it

changes to link down from link up, we take it as a link fault of remote Ethernet. At

the same time, the status of local module will change to link down form link up. It

will not be recovered until the fault disappears at remote site.

2．The equipment will monitor the status of remote E1 interface. When it changes to

loss of signal status from normal, we take is as a link fault of remote E1 link. At the

mean time, the equipment will cut off the transmission of local E1 interface but not

send AIS signal. The local E1 interface will not recover until the fault disappears at

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remote site.

3．The equipment will monitor the status of optical link, either transmitting alarm or

receiving alarm will be taken as an optical link fault. At the mean time, the Ethernet

interface status will change to link down and the E1 interface will be cut off. The

Ethernet interface and E1 interface will not recover until the optical interface

recovers.

The fault-pass-through capability is designed for users who have particular requirements.

When it is disabled, any fault at remote site and at optical interface has nothing to do with

local interfaces; all the interfaces of local module will be open.

In order to avoid misunderstanding, users are advised to use it cautiously. The factory

default status is disabled.

3.2.3 E1 Remote Loop-back Test

“E1 remote loop-back” setup at local Ethernet Multiplexer

Note: when setup any kinds of loop-back at the local Ethernet Multiplexer, the “remote

loop-back” switch at remote Ethernet Multiplexer must be at default status.

When the module is at E1 remote loop-back status, the Ethernet data communication

will not be interfered.

3.2.4 How to Implement Remote Network Management

When the equipment is connected as the following topology, the remote network

management can be implemented.

A．The host-site module is installed in Raisecom’s dedicated 16-slot 3U-high chassis,

which also has the network management module installed. The remote-site module

is installed in Raisecom’s single slot chassis.

Local site

Interface

Circuit

Interface

Circuit

Fiber-optic

E1 interface

Multiplex

Core

BERT

Multiplex

Core

Remote site

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B．The both modules are installed in 16-slot 3U-high chassis, but only the host-site

chassis is equipped with network management module. The remote-site module

shall be set to “forced remote network management mode”. That is to say, the 8th

switch shall be turned to ON.

4. Installation and Test

4.1 InspectafterOpening

Please first check if the models and part numbers are in consistence, and also check if the

equipments are damaged.

4.2 PreparationbeforeInstallation

 Carefully read this manual

 Prepare all kinds of the cable. Ensure that they are not short-circuited. Refer to

Appendix A for cable making.

 Ensure the pressure of power supply is in the tolerance range, the chassis is well

connected with the ground.

 Prepare the BERT and optical power meter for test of line quality.

 Place the equipment at stable and secure environment. Pay attention to the

requirements of the ambience.

4.3 Installation

This module can be installed into Raisecom’s dedicated 16-slot 3U-high chassis, 4-slot

1U-high chassis, and single slot chassis. Slowly insert the module into the slot to the end,

and fasten the fixing screw tightly.

4.3.1 Connecting the Cables

 E1 Interface:

RJ45 socket, 120 Ohm balanced signal.

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