ANT401-50/CU1T Yokogawa CENTUM VP Series Datasheet & Technical Manual

Optical ESB Bus Repeater Master Module | Yokogawa ANT401-50/CU1T

Optical ESB Bus Repeater Master Module | Yokogawa ANT401-50/CU1T

Availability: 10 left in stock

Yokogawa ANT401-50/CU1T Optical ESB Bus Repeater Master Module The Yokogawa ANT401-50/CU1T, also cataloged as the ANT401-50 Optical ESB Bus Repeater...

SKU: ANT401-50/CU1T

Manufacturer: Yokogawa
Product No.: ANT401-50/CU1T
Product Type: Optical Bus Repeater Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa ANT401-50/CU1T Optical ESB Bus Repeater Master Module

The Yokogawa ANT401-50/CU1T, also cataloged as the ANT401-50 Optical ESB Bus Repeater Master Module, operates as a dedicated hardware component for optical transport of ESB Bus signals within CENTUM VP / CS 3000 FIO System platforms. The unit converts standard electrical copper backplane signals into optical media streams to drive long-distance communication links to remote I/O blocks. It serves as the baseline physical layer converter needed to establish deterministic node-to-node connectivity without throughput degradation over extended fiber runs.

Hardware Specifications

Parameter	Specification
Model	ANT401-50/CU1T (Style S1)
Brand	Yokogawa
Platform	CENTUM VP / CENTUM CS 3000 FIO System
Origin	Japan
Weight	0.2 kg (Net module weight) / 2.0 kg (Total shipping weight)
Dimensions	22 x 124 x 126 mm (Overall module structure)
Operating Temp	-20 to +70 deg C
Power Consumption	Approximately 0.5 A current draw from base chassis supply
Base Configuration Suffix	5 (Standard type, no explosion protection), 0 (Basic type)
Connector Unit Option	/CU1T (Connector unit with built-in terminator for ESB Bus)
Transmission Medium	Optical fiber link (CU1T interface variant)
Maximum Distance	Up to 5 km per single stage (10 km across dual stages with Vnet/IP R1.03+)
Network Topologies	Star or chain configurations
Target Base Installation	ANB10D or AFF50D Field Control Unit (FCU)
Physical Slot Allocation	Odd slots reserved for Bus 1; even slots reserved for Bus 2
Environmental Compliance	ISA G3 corrosion resistance (when ordered with suffix -3)

Process Control Loops and DCS Instrument Integration

The module acts as a high-speed serialization gateway that passes field process values from 4-20 mA HART loop protocol networks across distant plant zones to the core processor rack. The internal optical conversion circuits achieve high isolation benchmarks, establishing structural channel-to-channel isolation limits that prevent high-voltage electrical surges from migrating through communication lines. This dielectric isolation preserves signal measurement integrity on distant analog racks, allowing localized cold junction compensation architectures to execute thermal conversions without tracking common-mode ground noise.

Frequently Asked Questions

Q: What function does the /CU1T option suffix perform on this specific module assembly?

A: The /CU1T designation specifies that the hardware includes a dedicated connector unit block fitted with an integrated internal electrical line terminator, matching the characteristic impedance of the incoming copper ESB Bus cable.

Q: How is physical path fault tolerance achieved when deploying this master interface?

A: The architecture supports a dual redundant bus configuration, where the primary module is inserted into an odd-numbered slot of the ANB10D/AFF50D chassis for Bus 1, and the secondary module occupies an even-numbered slot to handle Bus 2 data mirroring.

Q: Can the single-stage optical transmission limit be extended past 5 km without adding extra stages?

A: No. The physical transceiver components are rated for a maximum line attenuation profile that restricts a single optical fiber run to 5 km; extending the distance up to 10 km requires a two-stage repeating layout and Vnet/IP R1.03+ system software enablement.

Field Installation Guidelines

Terminator Engagement Verification: Confirm that the /CU1T connector unit is seated and locked flush against the module interface faceplate to prevent signal reflections on the electrical side of the loop.
Fiber Alignment Integrity: Clean all optical fiber cable ferrules using an approved lint-free solvent wipe before inserting them into the transceiver ports to stop airborne dust particles from scattering the light beam.
Slot Mapping Allocation: Adhere strictly to the odd-numbered and even-numbered slot constraints inside the ANB10D or AFF50D FCU housing to avoid configuration errors during system boot cycles.
Cable Bend Radius Control: Clamp the incoming optical fiber lines securely inside the wire trunking, keeping cross-sectional bends wide enough to avoid micro-bending losses that reduce communication margins.

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