RCMS2201-30 Modular Ethernet Multiplexer User Manual (Rev. A) Raisecom Technology Co.
Raisecom Technology Co., Ltd 1. 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.
Raisecom Technology Co., Ltd Contents 1. Cautions ...........................................................................................................................................1 2. Overview ..........................................................................................................................................3 2.1. 2.2. 2.3. 3. Parameters.......................................................................................................................................
Raisecom Technology Co., Ltd 2. Overview 2.1. Introduction RCMS2201-30 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.
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Raisecom Technology Co., Ltd 3. Parameters 3.1. E1 Interface Specification Bit rate: Line code: Interface impedance: Electrical characteristic: Transfer characteristic: Jitter Tolerance: 2048Kbps±50ppm HDB3 120Ω balanced signal Compliant to ITU-T G.703 Compliant to ITU-T G.823 ITU-T G.724 3.2. Fast Ethernet Interface Specification IEEE 802.3 IEEE 802.3u IEEE 802.1d Spanning Tree IEEE 802.
Raisecom Technology Co., Ltd 4. How to use 4.1. Description of the Front Panel The sketch of the RCMS2201-30 front panel Optical Connector: SC type in the above figure, TX for transmitting direction, and RX for receiving direction The optical interface type of RCMS2201-30 is DSC/PC. LAL (Local Alarm): The red alarm indicator will be lightened when error occurs at local optical receiving direction. It includes 4 alarm levels: lose of signal, lose of frame, BER exceeds 10-3, and BER exceeds 10-6.
Raisecom Technology Co., Ltd PWR (Power): the green indicator will be lightened when the power supply is in good condition 4.2. Dip-switch Setup 4.2.1.
Raisecom Technology Co., Ltd 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.
Raisecom Technology Co., Ltd 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. 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”.
Raisecom Technology Co., Ltd 5. Installation and Test 5.1. Inspect after Opening Please first check if the models and part numbers are in consistence, and also check if the equipments are damaged. 5.2. Preparation before Installation z z z z z 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.
Raisecom Technology Co., Ltd optical interface. If users want to configure the dip-switches, first unplug the module from the chassis and then use a flat screw-driver to set switches.
Raisecom Technology Co., Ltd 6. Troubleshooting If there is any problem during installation and operation, please try the following solutions. If the problem still cannot be solved, please contact distributors for technical support. The following explanations and solutions to optical and E1 LOS alarms are for the local module. If the alarms are at the remote site, please solve them at remote site. z Power (PWR) indicator (Green) is not ON Answer: Power supply fails.
Raisecom Technology Co., Ltd 7. Appendix A Cable Making A.1 E1 Cable Making Pin Number Definition 1 2 3 4 5 6 7 8 OUT+ OUT- Not Used Not Used IN+ IN- Not Used Not Used A.2 Ethernet Cable Making Use Cat.5 twisted-pair cable with RJ45 connector to connect this equipment. Note that the cable shall not be longer than 100 meters. Pin 1 Pin 8 The cable can be either straight-through or crossover. The sequence of the RJ45 connector is as follows.
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