Patton electronic 2450 - Manual (Page 10)

(APPENDIX D - Continued)
MODEL 2450/A
DB-25 CONNECTOR (RS-232/V.24), TERMINAL INTERFACE
Pin # Signal
1 Frame Ground
2 TD
3 RD
4 RTS
5 CTS
6 DSR
7 SGND (Signal Ground)
8 CD
15 TC
17 RC
18 LL (Local Loop)
21 RL (Remote Loop)
24 XTC
25 TM (Test Mode)
MODEL 2450/B
DB-25 CONNECTOR (RS-422/530), TERMINAL INTERFACE
Pin # Signal
1 Frame Ground
2 Transmit Data A
3 Receive Data A
4 RTS
5 CTS
6 DSR
7 SGND (Signal Ground)
8 CD
9 Receive Clock B
11 External Clock B
12 Transmit Clock B
14 Transmit Data B
15 Transmit Clock A
16 Recieve Data B
17 Receive Clock A
18 LL (Local Loop)
21 RL (Remote Loop)
24 External Clock A
25 TM (Test Mode)
(APPENDIX D - Continued)
MODEL 2450/E
DB-25 CONNECTOR (V.35), TERMINAL INTERFACE
Pin # Signal
1 Frame Ground
2 Transmit Data A
3 Receive Data A
4 RTS
5 CTS
6 DSR
7 SGND (Signal Ground)
8 CD
9 Receive Clock B
11 External Clock B
12 Transmit Clock B
14 Transmit Data B
15 Transmit Clock A
16 Recieve Data B
17 Receive Clock A
18 LL (Local Loop)
21 RL (Remote Loop)
24 External Clock A
25 TM (Test Mode)
17 18
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