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5 When a JW-21CM or JW-10CM is used
* Communication through the RS-422 port (4-wire system)
6 When a Z-331J/332J is used
* Communication through the RS-422 port (2-wire system)
14
Communication connector on
the IV-S20 (RS232C/RS422)
Pin No.
Signal name
4
TA
7
TB
8
RA
9
RB
Connector
FG
shield
RS-422 (4-wire system)
Communication connector on
the IV-S20 (RS232C/RS422)
Pin No.
Signal name
4
TA
8
RA
7
TB
9
RB
Connector
FG
shield
Ground
Shielded, twisted-pair cable
1 km or less
Z-331J/332J
(Host communication port T1)
Shielded, twisted-pair cable
1 km or less
RS-422 (2-wire system)
14-22
JW-21CM
JW-10CM
Signal name
L3
L4
L1
L2
SHIELD
GND
Terminal name
L1
L2
S
FG
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