The Yokogawa ANT502-5E, also cataloged as the ANT502-5E Optical ESB Bus Repeater Slave Module, operates as a dedicated hardware component for long-distance optical signal regeneration and bus extension within CENTUM VP Distributed Control System (DCS) network architectures.
Hardware Specifications
Parameter
Specification
Model
ANT502-5E
Brand
Yokogawa
Product Type
Optical ESB Bus Repeater Slave Module
Origin
Japan (JP)
Weight
Approx. 0.25 kg (0.55 lbs)
Dimensions
155.9 mm x 130 mm x 32.8 mm
Operating Temp
-20 to +60 deg C (-4 to +140 deg F)
Storage Temp
-40 to +85 deg C (-40 to +185 deg F)
Power Supply
24 VDC nominal
Power Consumption
< 5 W
Current Consumption
0.5 A
Maximum Distance
Up to 5 km (Single optical hop)
Optical Connector Type
LC (IEC61754-20 compliant)
Optical Fiber Type
Quartz single-mode optical fiber (G.652 standard)
Installation Options
ANB11 Optical ESB Node Unit or ANT10U Repeater Unit
Connector Options
/BU1A or /HU1A (With ESB link); /BU1B or /HU1B (No ESB link)
Yokogawa Process Control and DCS Optimization
FOUNDATION Fieldbus and Protocol Routing: The ANT502-5E acts as a transparent physical-layer bridge for the high-speed ESB control bus frames. By converting electrical bus backplane data into localized infrared light pulses, it extends the control loop reach to remote node nests containing FOUNDATION Fieldbus or 4-20 mA HART analog modules without introducing protocol processing lag.
Channel-to-Channel Isolation Matrix: The integrated LC fiber interface provides complete electrical isolation between distant process nodes. Because light propagation replaces copper conductors across the 5 km transmission path, the module blocks plant ground potential differentials, lightning transients, and high-frequency EMI spikes from propagating between separate control buildings.
