ABB 1MRK001608-CAr02 Serial Communication Module

The ABB 1MRK001608-CAr02, also cataloged as the 1MRK001608-CAr02 Serial Communication Module, operates as a dedicated optical serial interface component for protocol-based data exchange within ABB Relion 670 / 650 Series protection and control IED platforms. The module provides isolated communication channels for SCADA connectivity, bay-level signaling, and gateway integration through optical fiber interfaces.

Hardware Specifications

Optical Communication and Isolation Characteristics

The ABB 1MRK001608-CAr02 uses optical fiber communication paths to provide electrical separation between connected protection devices and external serial networks. The fiber interface eliminates direct metallic signal paths, reducing exposure to ground potential differences, electromagnetic interference, and transient coupling within substation automation environments.

The module supports SPA, LON, DNP 3.0, and IEC 60870-5-103 communication protocols for integration with ABB Relion protection systems. Dual communication channels allow separated serial links or redundant communication structures depending on system configuration. Optical link design maintains signal integrity across substation communication distances while supporting isolated data transfer between IED equipment and external automation systems.

Frequently Asked Questions

Q: What communication protocols are supported by the ABB 1MRK001608-CAr02?
A: The module supports SPA Protocol, LON, DNP 3.0, and IEC 60870-5-103 serial communication protocols.

Q: How is electrical isolation achieved on this communication module?
A: Isolation is achieved through optical fiber communication channels, which separate the serial communication path from metallic electrical connections.

Q: Where is the module installed in a Relion IED system?
A: The module is installed in an expansion option slot on the rear motherboard of compatible ABB Relion 670 / 650 Series IED chassis.

Field Installation Guidelines

Install the ABB 1MRK001608-CAr02 module in the designated rear expansion slot of the compatible Relion IED chassis according to the equipment hardware configuration.

Use the specified optical fiber type and connector interface during installation. Maintain fiber routing separation from high-current power conductors and sources of electromagnetic interference. Avoid excessive bending or mechanical stress on optical cables.

Verify protocol configuration, optical link status, and communication parameters after installation. Ensure shielding and grounding practices for associated control wiring follow the substation protection system installation requirements.