EIA530 (RS530)

From HwB

[edit] Pinout

Image:dsub25m.png

25 PIN D-SUB MALE at the DTE (Computer).

Image:dsub25f.png

25 PIN D-SUB FEMALE at the DCE (Modem).

CORRECT?

Pin Name Dir Description Circuit Paired with
1 --- Shield 18
2 TxD --> Transmitted Data BA 14
3 RxD --> Received Data BB 16
4 RTS --> Request To Send CA 19
5 CTS --> Clear To Send CB 13
6 DSR --> Data Set Ready CC 22
7 SGND --- Signal Ground Ground 21
8 DCD --> Data Carrier Detect CF 10
9 --> Rtrn Receive Sig. Elmnt Timing DD 17
10 --> Rtrn DCD CF 8
11 --> Rtrn Transmit Sig. Elmnt Timing DA 24
12 --> Rtrn Transmit Sig. Elmnt Timing DB 15
13 --> Rtrn CTS CB 5
14 --> Rtrn TxD BA 2
15 --> Transmit Signal Element Timing DB 12
16 --> Rtrn RxD BB 3
17 --> Receive Signal Element Timing DD 9
18 LL --> Local Loopback LL 1
19 --> Rtrn RTS CA 4
20 DTR --> Data Terminal Ready CD 23
21 RL --> Remote Loopback RL 7
22 --> Rtrn DSR CC 6
23 --> Rtrn DTR CD 20
24 --> Transmit Signal Element timing DA 11
25 --> Test Mode TM

Note: Direction is DTE (Computer) relative DCE (Modem).

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