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61202192L1-1 Express L768/L1.5 User Manual 103
Appendix D
Connector Pinouts
Table D-A
IBM/AT Style EIA-232 Interface
I = Input O = Output N/A = Not Applicable N/C = Not Connected
Table D-B
RJ-45 HDSL BRI U
Pin Name I/O Description
1 CD N/C Carrier Detect
2 RD O Receive Data
3 TD I Transmit Data
4 DTR N/C Data Terminal Ready
5 GND N/A Signal Ground
6 DSR N/C Data Set Ready
7 RTS I Request to Send
8 CTS O Clear to Send
9 RI N/C Ring Indicator
Pin 1 Loop 1
Pin 2 Loop 1
Pin 3 no connection
Pin 4 Loop 2 (Express L1.5 only)
Pin 5 Loop 2 (Express L1.5 only)
Pin 6 no connection
Pin 7 no connection
Pin 8 no connection
MAINTENANCE
ISDN
BRI U