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ABB RMU610 2VAA008425R1｜Repeater Mounting Unit ｜
RMU610 2VAA008425R1
ABB RMU610, part number 2VAA008425R1, is a Repeater Mounting Unit (RMU) base assembly used in ABB Ability™ Symphony® Plus / HN800 I/O communication systems. It provides the mechanical mounting and connection base for redundant cRBX01 fiber optic repeater modules.
Product Identification
Item Description
Manufacturer ABB
Type Designation RMU610
ABB Product ID 2VAA008425R1
Product Type Module Termination Unit / Mounting Base
Main Application Redundant cRBX01 fiber optic repeater installation
System Family ABB Ability™ Symphony™ Plus
Mounting Style Horizontal mounting
Form Factor Compact
Main Function
The RMU610 is not an active communication processor. It is a passive mounting and interface base designed to support redundant repeater configurations.
Its main functions include:
Mechanical mounting of redundant cRBX01 repeater modules
Providing electrical interconnection between repeater modules
Supporting redundant HN800 remote I/O bus expansion architecture
Enabling compact horizontal installation in Symphony Plus controller cabinets
Technical Characteristics
Parameter Specification
Mounting Horizontal row mounting
Module Type Compact mounting base
Supported Device Redundant cRBX01 repeater
Communication Medium Fiber optic (through installed repeater modules)
HN800 Support Via cRBX01
Dimensions Approx. 127 × 127 × 95.5 mm
Weight Approx. 0.1–0.3 kg (depending on source configuration)
Related ABB Components
Part Number Description
RMU610 2VAA008425R1 Mounting base for redundant cRBX01
cRBX01 HN800 fiber optic repeater module
HRBX01K02 2VAA009321R1 Redundant repeater kit including cRBX01 modules + RMU610
Procurement & Replacement Notes
For industrial spare-parts management:
Before replacement, verify:
ABB Symphony Plus system version
HN800 bus configuration
Whether the installation requires redundancy
cRBX01 repeater compatibility
Cabinet mounting orientation
Failure impact:
Because RMU610 is a mounting/interface base, failure symptoms may include:
Loss of redundant repeater availability
Fiber communication interruption
Remote I/O communication faults
HN800 bus diagnostics alarms
ABB RMU610 2VAA008425R1｜Repeater Mounting Unit ｜
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