RCMS2504-120 Series Standalone, Fiber Optic Ethernet Multiplexer User Manual (REV.A) Raisecom Technology Co., Ltd.
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.
Raisecom Technology Co., Ltd Contents 1. 2. 3. 4. 5. 6. 7. Cautions ............................................................................................................................................1 Overview ...........................................................................................................................................3 2.1. Introduction .........................................................................................................................3 2.2.
Raisecom Technology Co., Ltd 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. This kind of equipment can work either with RCMS2304-120 or RCMS2404-240. 2.2.
Raisecom Technology Co., Ltd RC MS 2 5 04 – 120 / AC AC supply 4 E1 links 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.
Raisecom Technology Co., Ltd 3. Parameters 3.1. E1 interface technical indicator Bit rate： Line code： Impedance of interface： Electrical characteristics: Other characteristics: 2048Kbps±50ppm HDB3 75Ω（unbalanced BNC interface） or 120Ω (balanced RJ-45 interface) Comply with ITU-T G.703 Indicators, such as transfer characteristics and input jitter tolerance comply with ITU-T G.823, G.724 etc. relevant protocols 3.2. E1 Ethernet interface technical features IEEE 802.3 Ethernet IEEE 802.
Raisecom Technology Co., Ltd 3.6.
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）：If power is in good condition, it is ON 4.1.2. Alarm indicator z GL: general alarm GL general alarm indicator (red): If a certain alarm occurs at local end, GL indicator is ON. If a certain alarm occurs at remote end, GL indicator is flashing.
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.
Raisecom Technology Co., Ltd ON z Enable 6th bit: setting for Ethernet data frame length 6th bit Ethernet data frame length setting ON 1916 byte OFF 1536 byte 8 bit DIP-Switches on right side: z If auto-negotiation on from 1st through 4th Ethernet port, set duplex mode. Note: supports 10/100Mbps auto-adaptive Ethernet port and full/half duplex auto-negotiation.
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. z 8th bit: enable/disable of remote management 8bit Remote management OFF Disable ON Enable NOTE: If use NM function, should configure this bit switch before opening equipment.
Raisecom Technology Co., Ltd 4.2. Introduction of back panel Figure: back panel of RCMS2504-120 4.2.1. Power Interface and Switch z z 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 z Switch can control power supply. 4.2.2. Auxiliary Data Channel RS232 interface: adopt RJ45. Line order refers to appendix A 4.2.3.
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 ON dip-switch is in correspondence with E1 port.
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. 5.2. Reparation before installation z z z z z z Carefully read this user manual Prepare all kinds of cable, which will be used. Assure no short or open circuit. The method of making cable refers to appendix A.
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. If supply power with AC 220V, please use power cord. Power indicator ‘PWR’ is ON after turning on electricity 5.3.3.
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. Please handle it at remote end if alarm occurs at remote end. z Green PWR indicator is OFF Answer: power supply faults.
Raisecom Technology Co., Ltd 7. Appendix A Introduction of making cable A.1 E1 interface z 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. Protecting sheath, iron collar and cannulation (Φ3) cover onto cable. Firmly weld core and CC3-K3. Wrap CC3-K3 plug in protecting sheath of cable.
Raisecom Technology Co., Ltd others —— Unassigned Line orders between RS232 (RJ45) and PC serial port (DB9 female connector) are as following: RJ45 DB9F 3 ←— 3 6 —→ 2 4、5 —— 5 A.
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.
