Table A-3. Pin Assignments For Primary Eia-232 Connector - ADTRAN DSU IV ESP User Manual

DB25 Pin EIA
1
2
3
4
5
6
7
8
9
10
15
17
18
20
21
22
24
25
61204011L1-1

Table A-3. Pin Assignments for Primary EIA-232 Connector

AA Protective Ground (PG)
BA Transmit Data (TD)
BB Receive Data (RD)
CA Request to Send (RS)
CB Clear to Send (CS)
CC Data Set Ready (SR)
AB Signal Ground (SG)
CF Received Line Signal Detector (CD)
- +12 Test Point
- -12 Test Point
DB Transmit Clock (TC)
DD Receive Clock (RC)
- Local Loopback (LL)
CD Data Terminal Ready (TR)
- Remote Loopback (RL)
CE Ring Indicator (RI)
DA External TX Clock (ETC)
- Test Indicator (T1)
DSU IV ESP User Manual
Appendix A. Pinouts
Description
A-3