Patton electronic 3088 - Manual (Page 48)

48
APPENDIX D
MODEL 3088/D INTERFACE PIN ASSIGNMENTS
X.21 INTERFACE
D-SUB-15 FEMALE CONNECTOR
DTW/DCE ORIENTATION
Copyright © 2005
Patton Electronics Company
All Rights Reserved.
Pin Signal
1 Frame Ground
2 T - Transmit Data-A (DTE Source)
3 C - Control-A (DTE Source)
4 R - Receive Data-A (DCE Source)
5 I - Indication-A (DCE Source)
6 S - Signal Element Timing-A (DCE Source)
7 BT - Byte Timing-A (DCE Source)
8 SGND - Signal Ground
9 T/ - Transmit Data-B (DTE Source)
10 C/ - Control-B (DTE Source)
11 R/ - Receive Data-B (DCE Source)
12 I/ Indication-B (DCE Source)
13 S/ Signal Element Timing-B (DCE Source)
14 BT/ - Byte Timing-B (DCE Source)