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Connection
Connection Between RS-422A (PT) and RS-422A (Computer Link Module)
F Wiring Between NT-AL001 and Computer Link Module
Make the connections between SDB and SDA, and RDB and RDA, with twisted
pair wires
NT-AL001 RS-422A terminal block
Abbrev.
CSA (–)
CSB (+)
RDA (–)
RDB (+)
RS-422A
interface
SDA (–)
SDB (+)
SG
GND
PT
RS-422A terminal block
RS-422A cable (maximum length: 500 m)
Note:
When connecting to a terminal block, always use crimp terminals.
F Wiring
Make the connections between SDB and SDA, and RDB and RDA, with twisted
pair wires.
PT RS-422A terminal block
Abbrev.
SDA (–)
RS-422A
SDB (+)
interface
RDA (–)
RDB (+)
Pin No.
8
7
6
5
4
3
2
1
Shielding wire
Computer link module
RS-422A terminal
block
Computer link module
Abbrev.
SDA (+)
SDB (–)
RDA (+)
RDB (–)
Shielding wire
Computer link module
Abbrev.
SDA (+)
SDB (–)
RS-422A
interface
RDA (+)
RDB (–)
SG
FG
Mitsubishi A series PC
RS-422A
interface
SG
FG
Chapter 2-2
2-7
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