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Description I/O Message Processor
Shelf NT1X61
Busses DS-30, IOC Shelf Parallel Bus
Variants AA, AB, BB, CA, CB

The NT1X62 handles communication between the IOC shelf and the rest of the DMS-100. It interfaces with the message switch shelf via DS-30, and talks to the rest of the cards on the IOC shelf via an internal parallel bus.[1]

The CB variant is the same as CA, but uses a custom "N03" IC to talk to the DS-30 bus.[1]


  1. 1.0 1.1 TAM-1001-018 DMS100 Family Quick Reference Guide.pdf DMS100 Family Quick Reference, Page 81