Rs-422a serial port cabling, Figur ec-2 – Verilink AS100 (896-502379-001) Product Manual User Manual
Page 107
Access System Centum Series User Manual
C-3
RS-422A Serial
Port Cabling
458-501791-
0
1
5
RS-530 cross-over cable. D-type, 25-pin (DB-25)
male connectors at both ends. Fifteen feet long. Optional at extra cost.
Figure C-2
RS-422A Serial Port #1 Cabling for External TIming
Centum Series RS-422
Serial Port
Pin Assignments
Customer RS-422A DCE
Pin Assignments
RS-530
(DB-25)
Signal
Signal
RS-530
(DB-25)
RS-449
(DB-37
15
TXC-A
TXC-A
15
5
17
RXC-A
RXC-A
17
8
24
Ext. TXC-A
Ext. TXC-A
24
17
2
TXD-A
TXD-A
2
4
3
RXD-A
RXD-A
3
6
12
TXC-B
TXC-B
12
23
9
RXC-B
RXC-B
9
26
11
Ext. TXC-B
Ext. TXC-B
11
35
14
TXD-B
TXD-B
14
22
16
RXD-B
RXD-B
16
24
4
RTS-A
RTS-A
4
7
8
DCD-A
DCD-A
8
13
5
CTS-A
CTS-A
5
9
20
DTR-A
DTR-A
20
12
6
DSR-A
DSR-A
6
11
19
RTS-B
RTS-B
19
25
10
DCD-B
DCD-B
10
31
13
CTS-B
CTS-B
13
27
23
DTR-B
DTR-B
23
30
22
DSR-B
DSR-B
22
29
7
GROUND
GROUND
7
19
x
x
x
x
x
x
x
x
x
x
x
x
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