ANB10D-420/CU2N

The Yokogawa ANB10D-420/CU2N is an ESB Bus Node Unit configuration for connecting field analog and contact I/O signals to a Field Control Unit (FCU) through the ESB bus. The ANB10D node supports a dual-redundant ESB bus arrangement and dual-redundant power supply. The supplied configuration information also specifies a 220-240 V AC power supply and a CU2N connector unit for the ESB bus.

Function and System Interface

The ESB Bus Node Unit provides the communication interface between field I/O modules and the FCU. It transfers analog and contact I/O signals over the ESB bus and supplies power to the installed I/O modules. The node therefore serves as the interface and power distribution point for the associated I/O assembly.

Configuration Details

The supplied description identifies the following configuration elements:

• ANB10D: Node unit for a dual-redundant ESB bus.
• Dual-redundant power supply: The specified configuration includes redundant power supply capability.
• 220-240 V AC: Specified power supply input range.
• CU2N: ESB bus connector unit, part number S9562FA, supplied as 2 pieces according to the source description.

The dual-redundant bus and power supply provisions describe the node configuration. They do not, by themselves, establish automatic failover timing, hot-swapping support, or the redundancy status of connected field I/O modules.

Technical Specifications

Parameter	Specification
Model	ANB10D-420/CU2N
Brand	Yokogawa
Product Type	ESB Bus Node Unit
ESB Bus Configuration	Dual-redundant
Power Supply Configuration	Dual-redundant
Power Supply Voltage	220-240 V AC
Connector Unit	CU2N
Connector Unit Part Number	S9562FA
Connector Unit Quantity	2 pieces

Frequently Asked Questions

Q: What is the function of the ANB10D-420/CU2N?

A: It provides the ESB bus interface between field I/O modules and the FCU while supplying power to the I/O modules. Its specified configuration supports a dual-redundant ESB bus.

Q: Which connector unit is specified for this model?

A: The /CU2N option specifies two S9562FA connector units for the ESB bus. The connector arrangement must match the intended bus wiring configuration.

Q: Does dual redundancy mean that all connected I/O modules are redundant?

A: No. The model description identifies dual-redundant bus and power supply configurations. It does not establish redundancy for every connected I/O module or field signal.

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