Overview

The ABB 1MRK002122‑ABr00 is part of ABB’s Relion® series accessories for protection and control systems.

It is designed to enable fiber‑optic communication links between intelligent electronic devices (IEDs), ensuring fast, interference-free, and reliable data transmission.

This module is particularly useful in substation automation, where electromagnetic interference (EMI) can disrupt copper-based communication.

Technical Specifications

Key Features

• Fiber‑optic communication eliminates EMI and ground loop issues.

• Short‑range multimode transmission up to 2 km.

• Compact and lightweight (0.12 kg) for easy installation.

• High reliability with optical budget margin for aging and splice losses.

• Specifically designed for ABB Relion® protection and control systems.

Typical Applications

• Substation automation: Reliable communication between IEDs and controllers.

• Power generation plants: Fiber‑optic links for protection relays.

• Industrial automation: Secure data transmission in noisy environments.

• Process industries: Integration of ABB protection modules into DCS networks.

FAQ

Q1: What is the primary function of the ABB 1MRK002122‑ABr00?
A1: It provides fiber‑optic communication links for ABB protection and control systems.

Q2: What wavelength does it use?
A2: It transmits at 850 nm using multimode fiber.

Q3: How far can it transmit?
A3: It supports up to 2 km transmission distance over multimode fiber.

Q4: Why use fiber instead of copper?
A4: Fiber eliminates electromagnetic interference (EMI) and ensures secure, reliable communication.

Q5: Where is it typically applied?
A5: In substations, power plants, and industrial automation systems requiring robust communication.