RAD Data comm Modular Access Device with Integrated Router operation manual E1/T1 Connectors

FCD-IPMInstallation and Operation Manual Appendix A Interface Specifications and Cable Diagrams

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

Note 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-3illustrates location of the pins in the E1 over SHDSL connector.

4 5

Figure A-3. E1 over SHDSL Connector Pin Location

Control Cable Connector A-5