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- ABB
- 1MRK002122-ABr08
- Communication Module
- Sweden (SE)
- 120 × 80 × 50 mm
- 0.3 kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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Product Overview
The ABB 1MRK002122-ABr08 Optical Short Range Line Data Communication Module is a communication interface used in industrial protection, control, and automation systems. Its main purpose is to provide a fiber-optic communication path between compatible protection or control equipment.
Optical communication is useful in electrical installations where conventional copper communication lines may be affected by electromagnetic interference, ground potential differences, or long cable runs. By using an optical transmission path, the communication interface can maintain a clean and electrically isolated connection between system components.
The 1MRK002122-ABr08 is intended for short-range optical communication applications. Rather than performing the main protection or control logic, the module handles the communication link and allows information to move between connected devices within the automation or protection architecture.
In a protection system, communication modules such as this can be used to exchange status information, commands, measurements, or other system data between equipment located at different points of the installation. The exact communication function depends on the host system and the configuration in which the module is installed.
With dimensions of 120 × 80 × 50 mm and a weight of 0.3 kg, the ABB 1MRK002122-ABr08 provides a compact solution for integration into industrial communication and protection equipment.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | 1MRK002122-ABr08 |
| Product Type | Optical Short Range Line Data Communication Module |
| Module Type | Optical Communication Module |
| Main Function | Data Communication |
| Communication Medium | Optical Fiber |
| Communication Range | Short Range |
| Application | Protection and Control Communication |
| System Function | Device-to-Device Data Transmission |
| Electrical Isolation | Optical Communication Interface |
| Installation | Industrial Control / Protection Equipment |
| Application Area | Power Automation and Industrial Communication |
| Dimensions | 120 × 80 × 50 mm |
| Weight | 0.3 kg |
Product Features
The ABB 1MRK002122-ABr08 is intended for communication environments where reliable data transfer and electrical isolation are important.
Key features include:
- Optical fiber communication interface
- Designed for short-range data communication
- Suitable for industrial protection and control systems
- Provides electrical isolation between communication points
- Reduces susceptibility to electromagnetic interference
- Compact module construction
- Suitable for integration with compatible ABB protection equipment
- Supports communication between system devices
The use of optical transmission makes the module particularly useful in electrical environments where communication wiring may be exposed to high levels of electrical noise.
Working Principle
The module converts communication data between the host protection or control equipment and the optical communication link.
When the connected system generates data for transmission, the communication interface prepares the information for optical transmission. The optical signal travels through the fiber connection to the remote communication point, where the receiving equipment converts it back into a form that can be processed by the connected system.
The communication process generally includes:
- Receiving data from the connected protection or control equipment
- Preparing the information for optical transmission
- Sending the signal through the optical fiber
- Receiving optical data from the remote device
- Converting the received information for the host system
- Maintaining the communication path between connected equipment
Because the communication path is optical rather than metallic, the link is not directly affected by electrical conduction between the two connected points.
Role in Industrial Control Systems
The 1MRK002122-ABr08 provides the communication interface needed to connect compatible equipment within a protection or automation architecture.
| Function | Description |
| Data Transmission | Transfers information between connected devices |
| Optical Communication | Uses fiber instead of conventional copper communication wiring |
| Electrical Isolation | Separates connected equipment electrically |
| Protection Communication | Supports communication between protection devices |
| System Integration | Connects communication interfaces within an automation system |
| Noise Reduction | Helps maintain communication in electrically noisy environments |
Its role is focused on communication rather than control logic, signal processing, or direct field-device operation.
Industrial Applications
Optical communication modules are commonly used in electrical and industrial environments where communication reliability is important.
| Industry | Typical Applications |
| Electrical Substations | Protection system communication |
| Power Generation | Generator and plant control communication |
| Power Distribution | Remote protection equipment communication |
| Energy Infrastructure | Communication between control devices |
| Industrial Automation | Equipment-to-equipment data links |
| Process Industries | Control system communication |
| Manufacturing | Industrial equipment networking |
| Utility Systems | Electrical monitoring and protection |
The short-range optical design is useful for communication links within the same facility or between equipment installed relatively close to each other.
Installation and System Integration
Before installing the ABB 1MRK002122-ABr08, the communication requirements of the host system should be checked carefully.
Recommended installation steps include:
- Confirm the complete module part number.
- Verify compatibility with the host ABB equipment.
- Install the module in the designated position.
- Check the optical interface and connector type.
- Use the appropriate optical fiber connection.
- Keep the fiber routing away from unnecessary mechanical stress.
- Verify the communication status after installation.
- Test data transmission before placing the system into normal operation.
Fiber connections should be kept clean and properly protected. Excessive bending, contamination, or mechanical damage to the optical cable can affect communication performance.
Compatible System Components
The optical communication module normally forms part of a larger protection or automation communication system.
| Compatible Component | Function |
| Protection Relay | Performs protection and monitoring functions |
| Control Device | Handles system control operations |
| Communication Module | Provides data transmission |
| Optical Fiber Cable | Carries optical communication signals |
| Remote Protection Equipment | Exchanges information with the local system |
| Automation Controller | Coordinates control functions |
| Communication Interface | Connects different communication devices |
| Monitoring System | Receives system information and status data |
The exact combination depends on the ABB equipment and communication architecture in which the module is installed.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
| ABB 1MRK002122-ABr08 | Optical Communication Module | Short-range optical data communication | Protection and control systems |
| ABB Optical Communication Modules | Optical Interface | Fiber-based data transmission | Industrial protection systems |
| ABB Line Communication Modules | Communication Module | Equipment-to-equipment communication | Power automation |
| ABB Protection Communication Interfaces | Communication Interface | Protection system connectivity | Substation applications |
| ABB Fiber Optic Communication Modules | Optical Module | Electrical isolation and noise resistance | Industrial communication |
When choosing an alternative, the optical interface, communication protocol, transmission distance, connector type, host equipment, and system architecture should all be checked. A module with a similar physical size is not automatically a functional replacement.
Key Advantages
- Provides optical data communication
- Suitable for short-range communication links
- Provides electrical isolation between connected equipment
- Less susceptible to electromagnetic interference
- Suitable for power protection and automation systems
- Compact design for equipment integration
- Supports communication between compatible system devices
- Useful in electrically demanding industrial environments
Technical FAQs
What is the ABB 1MRK002122-ABr08 used for?
The 1MRK002122-ABr08 is an optical short-range communication module used to transfer data between compatible protection, control, or automation equipment through an optical communication link.
Why use optical communication in a protection system?
Fiber-optic communication provides electrical isolation and is less affected by electromagnetic interference. This makes it useful in substations and other environments with high electrical noise.
Is the 1MRK002122-ABr08 a protection relay?
No. The module provides a communication interface and does not replace the main protection relay or controller. Its function is to support data exchange between compatible system components.