ADTRAN Express L768 - Manual (Page 135)

61203192L1-20 Express L768 User Manual D-1
Appendix D
Connector Pinouts
Table D-1. IBM/AT Style EIA-232 Interface
I = Input, O = Output, N/A = Not Applicable, N/C = Not Connected
Table D-2. 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 Description
1 Loop 1
2 Loop 1
3 no connection
4 Loop 2 (Express L1.5 only)
5 Loop 2 (Express L1.5 only)
6 no connection
7 no connection
8 no connection