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Summary of Contents for Raisecom RC801
- Page 1 RC801/803/805-120B 4E1 Fiber-Optic Multiplexer User Manual Raisecom Technology Co., Ltd. (04/2005)
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Page 2: Cautions
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. RC800-120B series optical multiplexer provides two types of power supply: AC and DC. When using DC power supply, please plug the power supply connectors according to this mannual strictly and avoid contrary connecting. -
Page 3: Table Of Contents
Raisecom Technology Co., Ltd Contents Cautions ............................1 Overview ............................3 2.1. Introduction ..........................3 2.2. Product Features........................3 2.3. Part Number Introduction ......................3 2.4. Dimensions ..........................4 Parameters............................5 3.1. E1 Interface Parameters ......................5 3.2. Optical interface characteristic ....................5 3.3. Power Supply...........................5 3.4. Ambience ..........................5 How to use ............................6... -
Page 4: Overview
Raisecom Technology Co., Ltd 2. Overview 2.1. Introduction RC801/803/805-120B series fiber-optic multiplexers are ideal fiber-optic transmission devices for point-to-point networks, medium-sized and small capacity networks, such as wireless communication base stations, private communication networks, and switches organizing networks. The transmission capacity of RC800-120B is 4 E1 channels (equivalent to 120 voice channels). -
Page 5: Dimensions
Raisecom Technology Co., Ltd DC —— DC -48V power supply Note: RC801 standalone fiber-optic multiplexer shall work in pairs RC803 and RC805 must cooperate in pairs. One RC803 must work with one RC805. 2.4. Dimensions Compact 19-inch standard 1U-high chassis, 440mm (W) x 43.6mm (H) x 180mm (D) -
Page 6: Parameters
Raisecom Technology Co., Ltd 3. Parameters 3.1. E1 Interface Parameters Bit rate: 2048Kbps±50ppm Line code: HDB3 Impedance of interface: 75Ω (unbalanced) or 120Ω (balanced) Electrical characteristics: complies with ITU-T G.703 Transfer characteristics: complies with ITU-T G.823 Input jitter tolerance: complies with ITU-T G.823 3.2. -
Page 7: How To Use
Raisecom Technology Co., Ltd 4. How to use 4.1. Introduction of the Front Panel 1 2 3 4 5 6 NM Interface Alarm of Fiber Power LOS on E1 Dip-switch Function Button Figure1: Sketch of the front panel of RC800-120B 4.1.1. - Page 8 Raisecom Technology Co., Ltd loop-back All E1 links Note: Only two test method can be set: single E1 channel loop-back or all E1 channels loop-back. When single E1 channel loop-back is testing, the other channels work normally. • bit: loop-back type options This switch is used to choose “remote loop-back”...
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Page 9: Dip-Switch Sw2 Setup: All Off By Default
Raisecom Technology Co., Ltd 4.1.4. DIP-switch SW2 Setup: All OFF by Default SW2 is the switch for address code setting. When all OFF, the equipment can be remote managed; otherwise, it can be managed locally through LNK-UP port. The addresses shall not be the same for the equipment cascaded at one serial port. -
Page 10: Power Socket
Raisecom Technology Co., Ltd 4.2.2. Power Socket AC: 220V standard triple-phase power socket DC: -48V power interface. Left pin for -48V, right pin for 0, and the middle pin for ground 4.2.3. Optical Port • The fiber connector is DSC/PC for dual-strand models, TX for signal output and RX for signal input •... -
Page 11: Installation And Test
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 Carefully read this manual Prepare all kinds of the cable. -
Page 12: Configuring Buttons And Switches
Raisecom Technology Co., Ltd 5.3.3. Configuring Buttons and Switches After turning on power of the device, first ensure there is no alarm on optical port. If optical ports are connected properly, there shall be no LOS, LOF, and E-3 alarm. The E-6 (yellow) may be on the moment when the power is just turned on. -
Page 13: Troubleshooting
There is problem that E1 link is too long to bring too much disturbance, so the signal attenuation is beyond –6dB. We can test the level of bit rate when this E1 link connecting with RC801-480B. LOS red indicator of optical port is on Answer: Loss of receiving signal occurs at optical port. - Page 14 Raisecom Technology Co., Ltd LOS red indicator of E1 sub-channel is on Answer: Loss alarm of RX signal at E1 sub-channel, no HDB3 signal is received. Check whether all E1 ports are connected well, or whether 75 Ω cables are reversely connected, or whether the wires of 75 Ω...
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Page 15: Appendix A Introduction Of Cable Making
Raisecom Technology Co., Ltd 7. Appendix A Introduction of Cable Making A.1 E1 Cable 75 Ohm BNC connector: SYV 75-5, SYV 75-3, or SYV 75-2-2 coax cable£ ¬ the distance shall not be longer than 200m. First pick out the BNC connector from the accessories, and release the tail protecting jack. - Page 16 Raisecom Technology Co., Ltd @2005 Raisecom Technology Co., Ltd. All trademarks are the property of their respective owners. Technical information may be subject to change without prior notification.
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