ABB Bailey NIRL01 Remote Link Termination Module

This ABB Bailey NIRL01 module terminates remote communication links for INFI 90 systems. It provides a physical connection point for long-distance I/O networks. This termination module ensures signal integrity over extended cable runs.

Technical Specifications

The ABB Bailey NIRL01 measures 215 mm in length. Its width reaches 30 mm with a height of 165 mm. This termination module weighs approximately 0.52 kilograms. A single PCB assembly holds all line conditioning and protection components.

Design and Energy Storage

This unit stores minimal energy in small suppression components. A switch enables or disables the termination resistor easily. The module includes biasing circuitry for fail-safe operation. Surface-mount technology boosts reliability in industrial environments. Furthermore, this termination module has isolation between field and logic sides.

Installation and Connectivity

You can mount this module on a standard DIN rail. It accepts incoming twisted pair cables via screw terminals. A ribbon cable connects the module to I/O adapters. Consequently, you complete the installation within a few minutes. Finally, LED indicators show link status and communication activity clearly.

Performance and Signal Conditioning

This unit consumes only 1.5 watts during normal operation. Its 1,200 meter range supports remote I/O cabinets without repeaters. Thus, you get reliable communication for distributed control architectures. The module conditions signals to reduce reflections and noise. This device also provides 1.5 kV transient protection for each line.

Typical Applications

Use this termination module for remote I/O links in large plants. It also excels at connecting distant operator stations to controllers. Many plants select this unit for turbine hall I/O cabinets. The compact module design saves valuable enclosure space effectively. Finally, switchable termination adapts to any point on the link.