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SG4P RS-232 Cable Specifications

The SG4P RS232 cable is an HD62 to 4 x DB25 connections. To retain FCC Class A qualification all cables must be fully shielded and the shielding must be connected to the metal connectors.
P1 -- HD62 male with screws --- |--- P2 -- DB25 male with screws
|--- P3 -- DB25 male with screws
|--- P4 -- DB25 male with screws
|--- P5 -- DB25 male with screws

P1

 

P2

 

P1

 

P3

21
DTR0
20
16
DTR1
20
20
Tx Data0
2
15
Tx Data1
2
19
RTS0
4
14
RTS1
4
18
Rx Data0
3
13
Rx Data1
3
17
DCD0
8
12
DCD1
8
40
Ground
7
35
Ground
7
38
CTS0
5
33
CTS1
5
61
DSR0
6
56
DSR1
6
60
Tx Clock0
15
55
Tx Clock1
15
59
Rx Clock0
17
54
Rx Clock1
17
58
DTE Clock0
24
53
DTE Clock1
24

P1

 

P4

 

P1

 

P5

10
DTR2
20
5
DTR3
20
9
Tx Data2
2
4
Tx Data3
2
8
RTS2
4
3
RTS3
4
7
Rx Data2
3
2
Rx Data3
3
6
DCD2
8
1
DCD3
8
29
Ground
7
24
Ground
7
27
CTS2
5
22
CTS3
5
51
DSR2
6
46
DSR3
6
50
Tx Clock2
15
45
Tx Clock3
15
49
Rx Clock2
17
44
Rx Clock3
17
48
DTE Clock2
24
43
DTE Clock3
24

Use shielded cable approx. 6 feet in length and metalized plastic covers. Ensure the shielding is soldered to the metal of the connectors (HD62 and DB25).

Label each cable near the DB25 connectors as follows:

P2 - Link 0

P3 - Link 1


P4 - Link 2

P5 - Link 3

Rx=Receive, Tx=Transmit, CTS=Clear to Send, RTS=Ready to Send,
DTR=Data Terminal Ready, DSR=Data Set Ready, DCD=Data Carrier Detect