HP 445 manual RS-449/422 WAN Cable-Minimum Pin-Outs, Pin male Circuit

Cables and Connectors

Cable and Connector Pin-Outs

RS-449/422 WAN Cable—Minimum Pin-Outs

WAN link	Router end	RS-449 Signal Name
end 37-pin male	62-pin male	and Circuit
4	17	SD	Send Data, A
5	2	ST	Send Timing, A
6	1	RD	Receive Data, A
7	15	RS	Request to Send, A
8	3	RT	Receive Timing, A
9	4	CS	Clear to Send, A
10	54		Reserved
11	5	DM	Data Mode, A
12	16	TR	Terminal Ready, A
13	6	RR	Receiver Ready, A
14	53		Reserved
15	48		Reserved
16	55		Reserved
17	14	TT	Terminal Timing, A
18	8		Reserved
19	9	SG	Signal Ground
	30
	32
20	47		Reserved
22	38	SD	Send Data, B
23	23	ST	Send Timing, B
24	22	RD	Receive Data, B
25	36	RS	Request to Send, B
26	24	RT	Receive Timing, B
27	25	CS	Clear to Send, B
28	33		Reserved
29	26	DM	Data Mode, B
30	37	TR	Terminal Ready, B
31	27	RR	Receiver Ready, B
33	29		Reserved
34	34		Reserved
35	35	TT	Terminal Timing, B
37	10	SC	Send Common

Cables and A Connectors

A-9