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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 |
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