E1 and t1 interface connector, Ethernet connector – RAD Data comm ASMi-52 User Manual

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Installation and Operation Manual

Appendix A Interface Connector Specifications

ASMi-52 Ver. 2.5

DTE Interface Connectors

A-3

E1 and T1 Interface Connector

The balanced E1 and T1 interfaces terminate in RJ-45 connector.

Table A-2

lists

the balanced connector pin assignment.

Table A-2. E1/T1 Connector Pinout

Pin

Function

1, 2

Transmit (output)

4, 5

Receive (input)

CPU ID for unbalanced interface detection

8 Earth

GND

It is recommended to use 4-wire cables (pin numbers 1, 2, 4, and 5) only forE1/T1
connections. If 8-wire cable is used, verify that pin #7 is connected in the
equipment side.
For E1 unbalance, use the cable adaptor CBL-RJ545/2BNC/E1.

Ethernet Connector

Table A-3. Ethernet Connector Pinout

Pin

Function

1 Tx+

2 Tx–

3 Rx+

4, 5

–

6 Rx–

7, 8

–

Note