Features:
- ER Bus master connection between local and remote nodes
- 10BASE2 BNC communication at 10 Mbps
- Single or dual-redundant module arrangement
Yokogawa EB401-50 S1 provides the master-side interface for extending an approved ER Bus from a local ESB Bus node or compact FCU.
The coaxial segment uses the specified BNC media and termination method, so cable type, route length, connectors, and terminators form part of the engineered network.
Module placement differs between single and redundant arrangements; record the installed slot plan and peer condition before replacing hardware.
Availability of Yokogawa EB401-50 S1 is subject to Apter Power inventory and sourcing confirmation.
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Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Yokogawa EB401-50 S1 ER Bus Interface Master Module Specs
General
- ManufacturerYokogawa
- ModelEB401-50 S1
- ConditionNew Original ready stock
- Product FamilyCENTUM ER Bus Interface Modules
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Network design points
- Master location: Identify the local ESB Bus node or compact FCU hosting the module.
- Approved media: Use the documented YCB141 50-ohm coaxial cable and BNC components.
- Distance limit: Keep the segment within the specified maximum cable length.
- Node record: Preserve remote-node addresses, route drawings, and termination locations.
Module arrangement
- Single service: Use the designated odd-numbered slot and maintain the required empty adjacent position.
- Redundant pair: Treat both masters as one engineered pair with recorded active and standby status.
- Changeover plan: Follow the site procedure before disturbing a healthy peer module.
- Alarm review: Confirm that redundancy and communication alarms clear after replacement.
Post-installation checks
- Connector inspection: Check BNC seating, cable strain, tees, and terminators.
- Node communication: Confirm stable access to every configured remote ER Bus node.
- Recovery test: Observe bus recovery after a controlled interruption.
- Documentation: Update slot records, cable route, node map, and commissioning results.