User manual

Raisecom Technology Co., Ltd
12
• 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. Optical interface
z Single strand, SC/PC connector
4.2.2. E1 interface
A DB37 male connector on the back panel provides 1~4
th
E1 tributary ports. Refer to
Appendix A for wire sequence.
z CC4B-8G type of adapter for conversion from DB37 to 8 CC3s is needed for using 75Ω
connection. There are 1~4
th
E1 tributaries from left to right, where the “OUT” above and
“IN” below.
z No need for adapter for using 120Ω connection
4.2.3. SLOT1, SLOT2 expanded slots
Configuration SLOT1 SLOT2 Capability