YOKOGAWA ProSafe-RS

2. Explosion Protection Instrumentation in Zone 2/Division 2
2-10
TI 32S01J30-01E
 Installing a ProSafe-RS/ProSafe-RS Lite equipment and a Field Device in
Division 2
<Hazardous area Class I, Division 2>
<Non-Hazardous area>
F020107E.ai
Cabinet
Cabinet
Vnet/IP
Bus1
Bus2
Unit for Optical Bus
Repeater Module
Fiber-optic cable
SNT501/L1NT501
SNT401/L1NT401
L2SW for Bus1
SSB401/L1SB401
+T Branch
SNU
SEA4D
SEA4D
AEP7DAEP7D
SSB401/L1SB401
+T Branch
SEC401/L1EC401
SCU
SNU
L2SW for Bus2
Conduit wiring
100 V AC Power supply
220 V AC Power supply
or
24 V DC Power supply
Conduit wiring
Fiber-optic cable or
Conduit wiring
L2SW: Layer 2 switch
SCU: Safety Control Unit
SNU: Safety Node Unit
Figure Example of Connection (Installation in Division 2)
Dec. 3, 2021-00