Raisecom RCMS2504-120 User Manual

Rcms2504-120 series standalone, fiber optic ethernet multiplexer

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RCMS2504-120 Series
Standalone, Fiber Optic
Ethernet Multiplexer
User Manual (REV.A)
Raisecom Technology Co., Ltd.
(04/2005)

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Summary of Contents for Raisecom RCMS2504-120

  • Page 1 RCMS2504-120 Series Standalone, Fiber Optic Ethernet Multiplexer User Manual (REV.A) Raisecom Technology Co., Ltd. (04/2005)
  • 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. RCMS2504-120 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. Main Feature........................3 2.3. Number Introduction ......................3 2.4. Dimension ...........................4 Parameters............................5 3.1. E1 interface technical indicator ...................5 3.2. E1 Ethernet interface technical features ................5 3.3. Optical interface technical indicator ..................5 3.4.
  • Page 4: Overview

    2. Overview 2.1. Introduction Ethernet multiplexer (RCMS2504-120) is an ideal transmission device of optical fiber for point to point networks, middle and small capacity networks, such as wireless communication base stations, private communication networks and switch networks. The RCMS2504-120B provides 4 E1 links and 4 Ethernet ports Ethernet, and can support remote management.
  • Page 5: Dimension

    4 ports Ethernet Standalone, single strand fiber, 1550nm Switch on layer 2 Multi-service device Company codename (Raisecom) Note : Standalone single strand fiber Ethernet multiplexer: RCMS2504-120 should work with RCMS2304-120, viz. one RCMS2504-120 should connect with one RCMS2304-120. 2.4. Dimension Dimension: 320mm(W)×38mm×(H)×160mm(D)
  • Page 6: Parameters

    Raisecom Technology Co., Ltd 3. Parameters 3.1. E1 interface technical indicator Bit rate£ º 2048Kbps±50ppm Line code£ º HDB3 Impedance of interface£ º 75Ω unbalanced BNC interface£ © or 120Ω (balanced RJ-45 interface) Electrical characteristics: Comply with ITU-T G.703 Other characteristics: Indicators, such as transfer characteristics and input jitter tolerance comply with ITU-T G.823, G.724 etc.
  • Page 7: Ambience

    Raisecom Technology Co., Ltd 3.6. Ambience Temperature: 0 ~ 45¡ æ Relative Humidity: ≤90%£ ¨ 25¡ æ £ ©...
  • Page 8: How To Use

    Raisecom Technology Co., Ltd 4. How to use 4.1. Introduction of front panel RCMS2504-120 front panel 4.1.1. Power indicator Power indicator£ ¨ Green£ © £ º If power is in good condition, it is ON 4.1.2. Alarm indicator GL: general alarm GL general alarm indicator (red): If a certain alarm occurs at local end, GL indicator is ON.
  • Page 9 Raisecom Technology Co., Ltd The purpose of switch is for E1 remote loop-back test, fault transfer, Ethernet packet length configuration, duplex configuration, insulation function configuration of Ethernet ports, selection between 232 and 485 of NM ports, selection between local and remote NM.
  • Page 10 Raisecom Technology Co., Ltd Enable bit: setting for Ethernet data frame length Ethernet data frame length setting 1916 byte 1536 byte 8 bit DIP-Switches on right side: If auto-negotiation on from 1 through 4 Ethernet port, set duplex mode. Note...
  • Page 11: Function Button: Buttons Of Default Settings Are All Pressed Out

    Raisecom Technology Co., Ltd RS232 standard or RS485 standard as per the standard of computer serial port!!! Otherwise, computer serial port cannot communicate with this equipment. bit: enable/disable of remote management 8bit Remote management Disable Enable NOTE: If use NM function, should configure this bit switch before opening equipment.
  • Page 12: Introduction Of Back Panel

    Raisecom Technology Co., Ltd 4.2. Introduction of back panel Figure: back panel of RCMS2504-120 4.2.1. Power Interface and Switch AC supply: adopt standard three-phase electric socket with 220V DC supply: adopt power interface with –48V. Connect left interface with –48V, right with 0V, and middle with protection GND Switch can control power supply.
  • Page 13: Dip-Switch Of Device On Bottom

    Raisecom Technology Co., Ltd 4.3. DIP-Switch of device on bottom There are two 8-bit switches, each of which is corresponding to 2 E1 branch links configuration nearby the E1interface at the bottom of equipment The dip-switch can be set by using small sharp pen or tools. Each set of dip-switch is in correspondence with E1 port.
  • Page 14: Installation And Test

    Raisecom Technology Co., Ltd 5. Installation and test 5.1. Installation According to equipment list, check types and amount of equipment and their fittings. Check the appearance of equipment whether are damaged or not. If it is affected with damp, should dry it before use.
  • Page 15: Electrify

    Raisecom Technology Co., Ltd on electricity. 5.3.2. Electrify Implement above operations before turning on electricity. If supply power with DC –48V, please connect ‘GND’ terminal with protection GND, ‘OV’ terminal with high potential cable, and -48V terminal with low potential cable. Make sure you follow above statement, and assure firm installation and no open circuit.
  • Page 16: Troubleshooting

    Raisecom Technology Co., Ltd 6. Troubleshooting If you have any problems during installation and usage, try to solve them by the following proposals. If there is no solution, please contact with distributors for technical support. These following explanations and solutions of alarm for optical port and LOS alarm of E1 branch aim at alarm of local end.
  • Page 17: Appendix A Introduction Of Making Cable

    Raisecom Technology Co., Ltd 7. Appendix A Introduction of making cable A.1 E1 interface 75ohm adopt DB37 external hanging coaxial adapter: Suggest using SYV 75-2-2 coaxial cable. The longest distance is less than 200 meters. Take CC3-K3 plug out fittings and screw off protecting sheath. Split the core and shielded layer of coaxial cable.
  • Page 18: Link Up Cable Of Nm Interface

    Raisecom Technology Co., Ltd others —— Unassigned Line orders between RS232 (RJ45) and PC serial port (DB9 female connector) are as following: RJ45 DB9F ←— —→ 4¡ ¢ 5 —— A.4 LINK UP cable of NM interface Connect LINK UP interface with console interface...
  • Page 19 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.

This manual is also suitable for:

Rcms2504-120bRcms2404-240

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