FCD-IPM Installation and Operation Manual Appendix A Interface Specifications and Cable Diagrams
Control Cable Connector A-5
A.2 E1/T1 Connectors
The following section provides information on the main and sub link connectors.
The connectors are provided as follows:
• The unbalanced interface of the E1 and SUB E1 links are terminated in two
BNC connectors. The connectors are designated RX-IN and TX-OUT.
• The balanced interface of the E1, SUB E1, T1 and SUB T1 are terminated in an
eight-pin RJ-45 connector, wired in accordance with Table A-2.
Table A-2. E1/T1 and SUB E1/T1 Link Connectors, Pin Allocation
Pin Designation Direction Function
1 RD(T) Input Receive data (tip)
2 RD(R) Input Receive data (ring)
3 FG ↔ Frame ground
4 TD(T) Output Transmit data (tip)
5 TD(R) Output Transmit data (ring)
6 FG ↔ Frame ground
7,8 Not connected
To connect the PABX to the SUB E1/T1 link, use a cross cable.
A.3 E1 over SHDSL Line Connector
The following section provides information on the 2-wire SHDSL main link
connectors. Figure A-3 illustrates location of the pins in the E1 over SHDSL
connector.
45
Figure A-3. E1 over SHDSL Connector Pin Location
Note