Specifications

IPmux-24 Ver. 1.5 E1 and T1 Connector A-1
Appendix A
Connector Wiring
A.1 E1 and T1 Connector
Balanced Connector
The E1 and T1 interfaces of IPmux-24 terminate in 8-pin RJ-45 connectors, wired
in accordance with
Table A-1 .
Table A-1. E1/T1 Port Connector Pinout
Pin Designation Direction Function
1 RD (R) Input Receive data (ring)
2 RD (T) Input Receive data (tip)
3, 6 – – FGND
4 TD (R) Output Transmit data (ring)
5 TD (T) Output Transmit data (tip)
7, 8 – N/A Not connected
Balanced-to-Unbalanced Adapter Cable
When IPmux-24 is ordered with unbalanced E1 interface, it is necessary to
convert the RJ-45 connector to the standard pair of BNC female connectors used
by unbalanced E1 interfaces. For that purpose, RAD offers a 150-mm long
adapter cable, CBL-RJ45/2BNC/E1/X, wired in accordance with
Figure A-1 .
RJ-45
BNC
Female
Receive
(Green)
Transmit
(Red)
1
2
3
4
5
6
7
8
Shielded
RJ-45
Transmit
(Red BNC)
Receive
(Green BNC)
RX Ring
RX Tip
NC
TX Ring
TX Tip
NC
NC
NC
.
.
.
.
.
.
Figure A-1. CBL-RJ45/2BNC/E1/X Cable Wiring Diagram