ANT401-50 Yokogawa Optical Repeater Module

Yokogawa ANT401-50/CU1T CENTUM Optical Bus Repeater Modules

Yokogawa ANT401-50/CU1T CENTUM Optical Bus Repeater Modules

Availability: 10 left in stock

Yokogawa ANT401-50 Optical ESB Bus Repeater Modules Configured for long-distance optical bus transmission in Yokogawa DCS networks, the Yokogawa ANT401-50,...

SKU: ANT401-5E/CU1T

Manufacturer: Yokogawa
Product No.: ANT401-5E/CU1T
Product Type: Bus Interface Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ANT401-50 Optical ESB Bus Repeater Modules

Configured for long-distance optical bus transmission in Yokogawa DCS networks, the Yokogawa ANT401-50, also cataloged as the ANT401-50/CU1T Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for extending high-speed ESB bus communication between control units and remote I/O nodes. The module interfaces dual fiber-optic transmission lines across distributed equipment racks to execute real-time bus signal conversion.

Hardware Specifications

Parameter	Specification
Model	ANT401-50 (ANT401-50/CU1T)
Brand	Yokogawa
Origin	Japan
Weight	0.2 kg
Dimensions	3.2 cm x 11.4 cm x 6.3 cm
Operating Temp	-20 to +70 deg C
Power Consumption	Standard backplane supply draw
Product Type	Optical ESB Bus Repeater Master Module
Transmission Medium	Single-mode fiber-optic cable
Max Transmission Distance	5 km (up to 50 km with intermediate repeaters)
Bus Redundancy	Dual optical channels (A and B)
Noise Immunity	High EMI resistance via optical isolation
Operating Humidity	Up to 95% RH, non-condensing

Distributed Bus & Fieldbus Integration Profiles

The optical bus repeater master module establishes dual-redundant fiber-optic links to bridge remote node units across extended physical distances. By converting backplane bus communication signals into optical pulses, the module eliminates ground loop differential voltages between control cabinets. Integrated diagnostic hardware monitors optical power margins and signal attenuation on both redundant channels, providing real-time bus state feedback and automatic path switching to preserve control loop determinism in high-noise electrical environments.

Frequently Asked Questions

Q: How does the ANT401-50 handle signal path degradation across redundant fiber links?

A: The module continuously checks signal integrity on both primary and secondary optical channels. If signal attenuation or link loss occurs on channel A, communication switches to channel B without causing bus timeouts or controller execution interruptions.

Q: Can the module be inserted into an energized baseplate slot during system operation?

A: Module replacement under live power requires placing the corresponding bus segment in maintenance mode, as interrupting active optical signals will disrupt data traffic to connected downstream nodes.

Field Installation Guidelines

First, align the module PCB edge connector with the designated node slot and slide the unit into the rack until the latching mechanism locks into place.

Next, remove the protective dust caps from the optical ports and connect single-mode fiber cables using SC-type connectors. Ensure minimum bend radius limits for optical cabling are maintained throughout cable trays, and keep optical fiber paths physically separated from high-voltage AC conductors by at least 200 mm to protect cabling from mechanical damage. Clean optical fiber end-faces with lint-free wipes before mating to prevent signal attenuation.

Finally, confirm that all fiber cable connectors are fully seated, and verify that cabinet ventilation airflow remains unblocked to ensure operational thermal stability within the specified temperature limits.

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