Arresters CN227 series
n
Application circuit example CN227-EB5
CN227-EBT
3m max. Protected device Included modular cable
10Base5 cable
Transceiver
① CN227-EBT ②
FG ③
③ ④
Coaxial tap
②
Arrester
①
AUI cable
Included grounding wire (2mm2) Already installed If the power supply outlet is not grounded, modular cable perform grounding using a separate grounding wire.
Thunder Blocker
D-sub connector ③
Transceiver case
④ To ground bus (3.5mm2)
Grounding terminal (M4)
Grounding terminal (M3)
n Wiring
method
Device side DA
DB
n Device side
Device side
SDB RDA SDA RDB
SG SG FG (E) FG (E)
Grounding wiring CN227-RS42/44
Protected device
Protected device
E F G H A B C D
A B C D
PROTECT
PROTECT
RS42
RS44
SURGE
SURGE
1 2 3 4
1 2 3 4
Signal wire PROTECT RS
SURGE
FG
FG
Grounding wire
5 6 7 8 SDA RDB SDB RDA
FG (E) FG (E) SG SG
Surge inrush side
Surge inrush side
RS42 signal wire
RS44 signal wire
Surge inrush side RS42, RS44 grounding (E) wire/ SG wire
DA
09/64
DB
Shortest connection
Shortest connection
To panel grounding terminal
Fuji Electric FA Components & Systems Co., Ltd./D & C Catalog Information subject to change without notice