Specifications

Appendix C. Interface Connections

C.1 E1 Line Connectors

C.1.1 BNC Connectors

Conn. Pin Designation Direction Function

Center TTIP From ETU01-Plus Transmit data

Sleeve TRING

↔

Signal return

Center RTIP To ETU01-Plus Receive data

Sleeve RRING

↔

Signal return

Table C.1a E1 BNC connector pin allocation

C.1.2 RJ-45 Connector

he RJ-45 E1 connector follows USOC RJ-48C standard for terminating equipment.

Pin Designation Direction Function

4 TRING Transmit data(-)

5 TTIP

From ETU01-Plus

Transmit data(+)

7 FG

↔

Frame ground

1 RRING Receive data(-)

2 RTIP

To ETU01-Plus

Receive data(-)

RJ-45

8 FG

↔

Frame ground

Table C.1b E1 RJ-45 connector pin allocation