|Description||I/O Message Processor|
|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.
The CB variant is the same as CA, but uses a custom "N03" IC to talk to the DS-30 bus.