Cables and Connectors

Cable and Connector Pin-Outs

RS-232 WAN Cable—Minimum Pin-Outs

WAN link end

Router end

EIA and Signal Name

25-pin male

62-pin male

 

2

3

4

5

6

7

8

12

13

14

15

16

17

19

20

21

22

23

24

59

BA

Send Data

1

BB

Receive Data

57

CA

Request to Send

4

CB

Clear to Send

46

CC

Data Mode

9

AB

Signal Ground

22-27

 

 

47

 

 

30

 

 

31

 

 

52

 

 

6

CF

Receiver Ready

28

 

Reserved

7

 

Reserved

13

 

Reserved

2

DB

Send Timing

49

 

Reserved

3

DD

Receive Timing

12

 

Reserved

58

CD

Terminal Ready

29

 

Reserved

48

 

Reserved

55

 

Reserved

56

DA

Terminal Timing

The maximum cable length is 15 meters (50 feet).

A-12

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HP 445 manual RS-232 WAN Cable-Minimum Pin-Outs, Maximum cable length is 15 meters 50 feet