- RCU Control Link terminator plug for AC 800M PM891
- Required for the documented single-controller configuration
- Identified by both TB853 and article number 3BSE057022R1
The ABB TB853 3BSE057022R1 terminates the RCU Control Link port on a single PM891 controller.
It plugs into the RCU Control port at the top of the processor and completes the documented single-controller hardware arrangement.
Confirm the PM891 configuration, port identity, connector condition, type designation, and full article number before replacement.
Availability, condition, price, and shipping time for ABB TB853 3BSE057022R1 RCU Control Link terminator are confirmed during quotation.
Verified resources and support links for ABB TB853 3BSE057022R1:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Install in the PM891 RCU Control port for single operation
- Confirm the CPU is not configured as one half of a redundant pair
- Keep the connector fully seated and mechanically undamaged
- Do not use the terminator as a link between redundant processors
- Use the documented TK855 RCU Data Link for a redundant PM891 pair
- Use the documented TK856 RCU Control Link for a redundant PM891 pair
- Verify TB853 and 3BSE057022R1 on the item and quotation
- Inspect contacts, keying, shell, retention, and PM891 port condition
- Review PM891 diagnostics after installation before returning to service
- Single-controller PM891 configurations in AC 800M systems
- Termination of the unused RCU Control Link on a non-redundant PM891 installation
- PM891 installations where no redundant partner is connected through the RCU Control Link