Appendix e connector pinouts – ADTRAN XRT User Manual
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61200.153L1-1
Express XR/XRT Quick Start Guide
77
Appendix E. Connector Pinouts
Appendix E
Connector Pinouts
PIN 13
PIN 1
PIN 25
PIN 14
FEMALE
Figure E-1
RS-232 Interface
Table E-A
RS-232 Interface
Pin
Name
I/O
Description
1 ......... Shield .................... I/O ............................ Shield for cable
2 ............ TD ......................... I .............................. Transmitted Data
3 ............ RD ....................... O ............................. Received Data
4 ........... RTS ....................... I .............................. Request to Send
5 ........... CTS ...................... O ............................. Clear To Send
6 .......... DSR ...................... O ............................. Data Set Ready
7 ............ SG ...................... I/O ............................ Signal Ground
8 ............ CD ....................... O ............................. Carrier Detect
20 ......... DTR ....................... I .............................. Data Terminal Ready
22 .......... RI ........................ O ............................. Ring Indicator
I = Input
O = Output