
A-72937EN/11
To meet the requirement of the EMC Directive
TMN06007E_A-72937EN_11.DOC
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(10) Serial port cable ( RS232C, RS422 )
Use OVERALL SHIELD PAIR WIRE CABLE.
[With Punch panel]
Where punch panel is used, grounding and inserting a ferrite
core is needed.
1) Connect the shield to the earthed cabinet close to the
punch panel. In addition to the grounding near the
punch panel, the second grounding near NC is
recommended if possible.
2) Mount ferrite cores at both ends.
[Without Punch panel]
[In case of i Series NC]
Where no punch panel is used, grounding at both ends and
inserting a ferrite core is needed.
1) Ground the cable shield at both ends.
Grounding at NC cabinet should be close to the inlet.
2) Mount ferrite cores at both ends.
[Except for i Series CNC]
Ground the cable shield at both ends.
Grounding at NC cabinet should be close to the inlet.
Ferrite core
see sec. 4.2.
NC cabinet (Metallic)
I/O device
OVERALL SHIELD PAIR WIRE CABLE
NC
R232
(Optional)
Punch panel
RS232C
RS422
Ferrite core
see sec. 4.2.
NC cabinet (Metallic)
OVERALL SHIELD PAIR
WIRE CABLE
NC
R232
RS232C
RS422
I/O device
NC cabinet (Metallic)
OVERALL SHIELD PAIR
WIRE CABLE
NC
R232
RS232C
RS422
I/O device