RS-422/449 (EIA-449) DCE Cable Pinout
Table 75: RS-422/449 (EIA-449) DCE Cable Pinout
LFH-60 Pin
DC-37 (DB-37) Pin
15
1
1
4
56
5
60
6
37
7
52
8
48
9
45
10
33
11
9
12
13
13
5
17
36
19
4
20
2
22
55
23
59
24
38
25
51
26
47
27
34
29
10
30
14
31
6
35
57
37
26 to 25
–
Chapter 13: Network Cable Specifications and Connector Pinouts
LFH-60 Pairing
Description
–
Shield Ground
2
Send Data (A)
55
Send Timing (A)
59
Receive Data (A)
38
Request to Send (A)
51
Receive Timing (A)
47
Clear to Send (A)
–
Local Loopback
34
Data Mode (A)
10
Terminal Ready (A)
14
Receive Ready (A)
6
Terminal Timing (A)
–
Signal Ground
–
Receive Common
1
Send Data (B)
56
Send Timing (B)
60
Receive Data (B)
37
Request to Send (B)
52
Receive Timing (B)
48
Clear to Send (B)
33
Data Mode (B)
9
Terminal Ready (B)
13
Receiver Ready (B)
5
Terminal Timing (B)
–
Send Common
–
–
Serial PIM Cable Specifications
227