Installation and Operation Manual

Appendix A Interface Connector Specifications

 

 

E1 and T1 Interface Connector

The balanced E1 and T1 interfaces terminate in RJ-45 connector. Table A-2lists the balanced connector pin assignment.

Table A-2. E1/T1 Connector Pinout

Pin

Function

 

 

1, 2

Transmit (output)

 

 

4, 5

Receive (input)

 

 

7

CPU ID for unbalanced interface detection

 

 

8

Earth GND

Note

 

 

 

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

 

 

ASMi-52 Ver. 2.5

DTE Interface Connectors

A-3

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RAD Data comm ASMi-52 manual E1 and T1 Interface Connector, Ethernet Connector