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RS-422/449 (EIA-449) DCE Cable Pinouts for the SRX 210 Services Gateway

Table 1 describes the RS-422/449 DCE cable pinouts.

Table 1: RS-422/449 DCE Cable Pinouts

LFH-60 Pin

DC-37 (DB-37) Pin

LFH-60 Pairing

Description

15

1

-

Shield Ground

1

4

2

Send Data (A)

56

5

55

Send Timing (A)

60

6

59

Receive Data (A)

37

7

38

Request to Send (A)

52

8

51

Receive Timing (A)

48

9

47

Clear to Send (A)

45

10

-

Local Loopback

33

11

34

Data Mode (A)

9

12

10

Terminal Ready (A)

13

13

14

Receive Ready (A)

5

17

6

Terminal Timing (A)

36

19

-

Signal Ground

4

20

-

Receive Common

2

22

1

Send Data (B)

55

23

56

Send Timing (B)

59

24

60

Receive Data (B)

38

25

37

Request to Send (B)

51

26

52

Receive Timing (B)

47

27

48

Clear to Send (B)

34

29

33

Data Mode (B)

10

30

9

Terminal Ready (B)

14

31

13

Receiver Ready (B)

6

35

5

Terminal Timing (B)

57

37

-

Send Common

26 to 25

-

-

-


Updated: 2009-04-27

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