RCMS2504-240 Standalone, Multi Service Fiber Optic, Ethernet Multiplexer User Manual (REV.B) 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. RCMS2504-240 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 Content 1. Cautions ...........................................................................................................................................1 2. Overview ..........................................................................................................................................4 2.1. 2.2. 2.3. 3. Parameters.......................................................................................................................................
Raisecom Technology Co., Ltd A.1 E1 interface..................................................................................................................................19 A.2 Cable of Ethernet .........................................................................................................................19 A.3 RS232 cable of data channel .......................................................................................................19 A.4 Cable for LINK UP network management port ...
Raisecom Technology Co., Ltd 2. Overview 2.1. Introduction RCMS2504-240 is an ideal transmission device of optical fiber for point-to-point networks, medium-sized and small capacity networks, such as wireless communication base stations, private communication networks and switch networks. It can be applied to either public networks or various private networks. The transmission capacity of RCMS2504-240 is optional.
Raisecom Technology Co., Ltd RC MS 2 5 04 – 240 / 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: RCMS2504-240 should work with RCMS2304-240, viz. one RCMS2304-240 should connect with one RCMS2504-240.
Raisecom Technology Co., Ltd 3. Parameters 3.1. Dimension Standard 19-inch 1U-high chassis z Dimension: 440mm(W)×43.6mm×(H)×235mm(D) 3.2. E1 Interface Bit rate: Line code: Impedance of interface: Electrical characteristics: Transfer characteristics: Input jitter tolerance: 2048Kbps±50ppm HDB3 75Ω (unbalanced BNC interface) or 120Ω (balanced RJ-45 interface) complies with ITU-T G.703 complies with ITU-T G.823 complies with ITU-T G.724 3.3. Fast Ethernet IEEE 802.3 Ethernet IEEE 802.
Raisecom Technology Co., Ltd 3.6. Power Supply DC: -48V (tolerance range -36V ~ -72V) AC: 220V (tolerance range 115~230V) Power consumption: ≤25W 3.7.
Raisecom Technology Co., Ltd 4. How to use 4.1. Introduction of front panel Sketch of RCMS2504-240 front panel 4.1.1. Power indicator Power indicator (Green): On when the power supply is working in good condition 4.1.2. Alarm indicator z GL: general alarm GL general alarm indicator (red): Any of alarm happened make GL general alarm indicator “on”. Alarm happened on remote site, it is flashing.
Raisecom Technology Co., Ltd “ON”: Mask unused E1' s alarm; “OFF”: No mask unused E1' s alarm z RING / MUTE: Push in: enable the alarm ring. If alarm appears, there will be “zi…zi…” ring. Push out: disable the alarm ring. OFF 4.1.4. DIP-Switch of front panel: (default all ON “OFF”) 123456 12345678 The dip-switches on the front panel are used to set E1 remote loop-back test and Ethernet port isolation functions.
Raisecom Technology Co., Ltd When FPT is disabled, it is identical to the AIS function of traditional optical multiplexers. When the receiving signals of the E1 interface at the remote site are lost, the corresponding local E1 interface will output all “1” signals; when the receiving signals of the local optical interface are lost, all local E1 interfaces will output all “1” signals. FPT is designed for users who have special requirements.
Raisecom Technology Co., Ltd 7th bit: network management option (RS232/485 optional) 7th bit Network management option OFF RS232 (default) ON RS485 When linking the LINK UP network management port with the serial port of the computer, users shall choose RS232 standard or RS485 standard. Otherwise, the communication cannot be set up.
Raisecom Technology Co., Ltd • MDI/MDIX auto-negotiation 4.1.6. RS232 auxiliary data channel RS232 standard, RJ45 connector. Refer to appendix A for wire sequence. 4.1.7. LINK UP network management port LINK UP port can be connected with the serial port of computer. The connection standard is optional between RS232 and RS485. • LINK UP port: RJ45 connector. It adopts RS485 or RS232 (19.2kbps) standard. 4.2. Introduction of back panel Figure: Sketch of RCMS2504-240 of back panel 4.2.1.
Raisecom Technology Co., Ltd Basic capacity configuration Empty Empty 4 channel E1 SUBM-4E1 (Provides 5th ~8th Empty 8 channel E1 E1) 10BaseT or 10BaseT or V.35sub-system V.35sub-system 4 channel E1 + th Multi service (occupied 5 E1) (occupied 8th E1) multi-service configuration 100BaseT interface (occupied 5th ~8th Empty E1) • Basic capacity configuration (4 E1): Both Slot 1 and 2 are empty.
Raisecom Technology Co., Ltd using small sharp pen or tools. Each set of dip-switch is in correspondence with E1 port. Definition as following: 1st 2nd 3rd 4th ON ON ON OFF Or 75Ω unbalanced signal effective As shown in figure above, the default status is interface effective”.
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 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 5.3.2. Electrify If power supply (PS) is DC –48V, first connect middle end to PGND. Turn off PS, connect “-48V” end with the lower electric level cable, “0V” end with higher electric level cable. Make sure no reverse connection, or no short circuited, and then turn on power. If PS is AC 220V, use the PS line in the accessories. When PS is turned on, the PWR indicator should be on. 5.3.3.
Raisecom Technology Co., Ltd 6. Troubleshooting If you have any problems during installation and using, 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 for E1 tributaries are analyses of local alarm. Please handle it at remote site if there is remote alarm. z Green PWR indicator not on Answer: PS faults.
Raisecom Technology Co., Ltd z LOS red indicator of E1 channel is on Answer: Loss alarm of RX signal at E1 channel, there is no HDB3 signal received. Check if it connects well at E1 port; if the connection of 75 Ω cable reverse and if the string of 75 Ω cable in right order. If there is LOS alarm of unused E1 tributary, can press “mask” button to “on” to make alarm after configuration of device.
Raisecom Technology Co., Ltd 7. Appendix Introduction of Cable Making A.1 E1 interface z 75ohm adopting DB37 coax adapter: Suggest using SYV 75-2-2 coax cable, the distance less than 200 meter. 120ohm DB37 male connector is defined as following: DB37 pin 1st 2nd 3rd 4th definition OUT 3、4 7、8 11、12 15、16 IN 21、22 25、26 29、30 33、34 Others hang up. Twisted pairs can be jointing on DB37 female connector. z A.2 Cable of Ethernet Use RJ45 Cat. 5 twisted-pair cable to connect the equipment.
Raisecom Technology Co., Ltd 6 4, 5 —→ —— 2 5 A.4 Cable for LINK UP network management port LINK UP port shall be connected with the console port LINK UP port adopts RJ45 connector, and the pin definition is as follows. RS232 standard 3 ——RXD 232 signal input 7 ——TXD 232 signal output 4, 8 ——GND ground RS485 standard 1 ——RXD+ 485 signal input 2 ——RXD485 signal input 5 ——TXD485 signal output 6 ——TXD+ 485 signal output Note: “input” and “output” are referring to RCMS2504-240 itself.
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