RAD Data comm 100 DB-25 Pin Allocation V.35, V.11, used for RS-530, X.21, Name, Type

Table 4. DB-25 Pin Allocation

(V.35)

Pin	Name	Type
1	SHIELD
2	TxD-A	Output
3	RxD-A	Input
4	RTS-A	Output
5	CTS-A	Input

6NC

7GND

9 RCLK-B Input

10NC

11NC

12	TCLK-B	Input
13	NC
14	TxD-B	Output
15	TCLK-A	Input
16	RxD-B	Input
17	RCLK-A	Input

18NC

19NC

20NC

21NC

22NC

23NC

24NC

25NC

	Table 5. DB-25 Pin Allocation
		(V.11)
	(used for RS-530, X.21, V.36)
Pin	Name	Type
1	SHIELD
2	TxD-A	Output
3	RxD-A	Input
4	RTS-A	Output
5	CTS-A*	Input
6	NC
7	GND
8	NC
9	RCLK-B	Input
10	NC
11	NC
12	TCLK-B	Input
13	CTS-B*	Input
14	TxD-B	Output
15	TCLK-A	Input
16	RxD-B	Input
17	RCLK-A	Input
18	NC
19	RTS-B	Output
20	NC
21	NC
22	NC
23	NC
24	NC
25	NC

* Indication signal for X.21