ANT401-50 Yokogawa Optical Bus Repeater

ANT401-50 Yokogawa Centum ESB Optical Bus Repeater Module

ANT401-50 Yokogawa Centum ESB Optical Bus Repeater Module

Availability: 10 left in stock

Yokogawa ANT401-50 Optical ESB Bus Repeater Master Module The Yokogawa ANT401-50, also cataloged as the ANT401 Optical ESB Bus Repeater...

SKU: ANT401-50/CU1N

Manufacturer: Yokogawa
Product No.: ANT401-50/CU1N
Product Type: Communication Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ANT401-50 Optical ESB Bus Repeater Master Module

The Yokogawa ANT401-50, also cataloged as the ANT401 Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for extending serial fieldbus communication lines over optical fiber within Yokogawa Centum CS3000 and Centum VP DCS networks. The module converts electric ESB bus signals into optical pulses to enable real-time deterministic communication between Field Control Units (FCUs) and remote I/O nodes over long physical distances.

Suffix Breakdown & Model Matrix

The base module ordering code designates specific hardware protective treatments and connector configurations:

ANT401: Base optical ESB bus repeater master module logic platform.
-50: Standard non-explosion protection hardware build with basic functional integration.
/CU1N: Equipped with CU1N connector unit for standard ESB bus cabling interface.

Hardware Specifications

Parameter	Specification
Model	ANT401-50/CU1N / ANT401
Brand	Yokogawa
Origin	Singapore
Weight	0.3 kg (Shipping Weight 3.0 kg)
Dimensions	142.5 mm x 130.0 mm x 32.8 mm
Operating Temp	-20 to +60 deg C
Power Consumption	~10 W (24 VDC Nominal, 0.5 A)
Communication Interface	ESB Bus Optical Transport
Transmission Distance	Up to 5 km (Standard single-mode quartz fiber)
Connector Type	Dual LC (IEC 61754-20 compliant)
Optical Loss Limit	0 to 10 dB @ 1.3 um wavelength
Network Topology	Chain (max 2 stages), Star (up to 8 pairs with ANT502)

Channel-to-Channel Isolation and Optical Fieldbus Conversion

Converting copper ESB signal tracks into optical pulse vectors provides complete galvanic isolation between local Field Control Units and distributed remote node racks. This optical decoupling eliminates ground loop currents and suppresses electro-magnetic interference (EMI) across long-distance plant runs. Internal optoelectronic conversion circuitry processes signal transmissions at deterministic fieldbus rates, utilizing dual Tx/Rx optical ports to maintain uninterrupted, isolated channel data integrity without introducing protocol conversion latency.

Frequently Asked Questions

Q: Can maintenance personnel perform hot-swap replacement on an active ANT401-50 module?

A: Yes. Technicians can replace the module online without interrupting systemic backplane power, provided the system operates in a dual-redundant ESB bus configuration and the secondary optical link handles active traffic.

Q: What optical power loss parameters must technicians maintain across the fiber link?

A: Field engineers must verify that total optical link loss remains strictly within the 0 to 10 dB margin at the 1.3 um operating wavelength to prevent bit error rate degradation.

Q: How do onboard diagnostic LEDs report physical link errors?

A: Front-panel LED indicators directly reflect 24 VDC power availability, active optical link state, data transfer activity, and internal module fault conditions for rapid troubleshooting.

Field Installation Guidelines

Mount the module directly into the designated I/O or communication slot of the node rack, ensuring the rear backplane edge connector fully seats before tightening the top and bottom retention screws. Clean all LC fiber optic connectors with lint-free optical wipes prior to insertion to prevent dust contamination inside the optical transceivers. Maintain minimum bend radius limits on single-mode optical patch cables within the cabinet wireways to avoid micro-bending signal attenuation.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.