The ABB 1MRK001608-CBr00, also cataloged as the 1MRK001608-CB Serial Communication Module, operates as a dedicated hardware component for localized serial data translation and multi-protocol optical loop routing within ABB protection and substation automation platforms.
Hardware Specifications
Parameter
Specification
Model
1MRK001608-CBr00 / 1MRK001608-CB
Brand
ABB
Origin
Switzerland
Weight
1.52 kg
Dimensions
74 mm x 370 mm x 361 mm
Operating Temp
Certified for standard industrial substation thermal gradients
Power Consumption
Logic power derived directly via the internal subrack backplane assembly
Product Type
Communication Modules
Physical Layer Interface
Fiber-optic glass interface media ports
Native Protocol Stack Support
SPA, LON, DNP, IEC 60870-5-103
Enclosure Protection Class
IP20
Mounting Framework
Plug-in module layout for standard ABB relay racks
Industrial Control and Drives (PLC/DCS/Drives) Attributes
The 1MRK001608-CBr00 manages optical serialization layers and continuous signal path validation directly across the localized network interface. To convert data frames from internal logic channels and transmit substation protocols concurrently without register lag or data packet fragmentation, the module utilizes a high-speed communication processor core coupled to dedicated glass fiber transceiver circuits. This optical interface translates electronic bits into light pulses, maintaining stable communication paths across legacy and modern network configurations while matching the deterministic timing bounds of host SCADA systems.
Because this communication card links critical protective relays with remote supervision platforms over optical networks, its physical architecture enforces absolute electrical isolation between external field runs and the internal module bus. The transceiver circuitry maintains absolute firmware flash compatibility profiles across connected Profinet / EtherNet/IP deterministic networks, native IEC 60870-5-103 topologies, and legacy SPA/LON loops. This enables flexible I/O density scaling options across the rack assembly without inducing data phase skew or causing network link timeouts during major grid transient events.
