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Description
Yokogawa ANT502-50 Optical ESB Bus Repeater Slave Module
The Yokogawa ANT502-50, also cataloged as the ANT502 Optical ESB Bus Repeater Slave Module, operates as a dedicated hardware component for optical-to-electrical ESB signal conversion within the CENTUM VP and CENTUM CS 3000 ESB communication network. The module receives optical ESB transmission signals and outputs electrical ESB bus signals for extended-distance node communication.
Suffix Breakdown & Model Matrix
The supplied documentation identifies ANT502-50 as the standard model variant with a maximum optical transmission distance of 5 km. No additional suffix matrix or ordering-code breakdown is specified in the provided data.
Hardware Specifications
Parameter
Specification
Model
ANT502-50
Brand
Yokogawa
Product Type
Optical ESB Bus Repeater Slave Module
Origin
Japan
Network Platform
CENTUM VP / CENTUM CS 3000
Function
Optical-to-electrical ESB bus signal conversion
Maximum Transmission Distance
Up to 5 km
Network Topology
Chain and Star
Maximum Connectable Stages
2 stages (Chain configuration)
Maximum Module Connections
Up to 8 modules
Optical Connector Type
LC (IEC 61754-20 compliant)
Fiber Type
Single-Mode Fiber (SMF)
Required Fiber Cores
2 cores (Tx/Rx)
Permissible Optical Loss
0 to 10 dB at 1.3 um
Current Consumption
0.5 A maximum
Power Consumption
Not specified
Operating Temp
-20 degC to +60 degC
Storage Temp
-40 degC to +85 degC
Weight
Approx. 0.25 kg
Channel-to-Channel Isolation and Optical Communication Characteristics
The ANT502-50 utilizes optical fiber transmission between ESB bus segments, providing electrical isolation between interconnected communication nodes. Optical transmission eliminates conductive communication paths between remote node locations and reduces susceptibility to electromagnetic interference present on copper communication wiring.
The module supports installation within ANB11 Optical ESB Bus Node Units and ANT10U Repeater Module Units. For redundant architectures, paired module installation is supported in designated redundant slots, allowing communication path redundancy through separate optical channels.
Frequently Asked Questions
Q: Does the ANT502-50 support redundant communication configurations? A: Yes. The module can be installed as part of a dual-redundant Optical ESB network configuration when supported by the host node unit and system architecture.
Q: What optical fiber type is required for communication? A: The module is specified for quartz single-mode optical fiber using two fiber cores, one for transmission (Tx) and one for reception (Rx).
Q: Can the ANT502-50 be directly connected to an electrical ESB bus network? A: Connection to the slave-side ESB bus requires installation within the designated node or repeater unit and use of the appropriate ESB bus connector interface specified for the enclosure configuration.
Field Installation Guidelines
Verify compatibility between the ANT502-50 and the target ANB11 or ANT10U installation platform before installation.
Use only specified single-mode optical fiber assemblies with LC optical connectors.
Maintain separation between optical cables and high-power electrical conductors during cable routing.
Observe minimum fiber bending radius requirements specified by the fiber manufacturer.
Ensure optical connectors are clean prior to connection to prevent insertion-loss increases.
Confirm Tx and Rx fiber orientation before commissioning.
For redundant systems, route primary and backup optical fibers through physically separated cable paths where practical.
Follow plant grounding practices for enclosure and cabinet grounding; optical fibers themselves do not require signal-shield grounding.
