The INIIT12 module is a single printed circuit board that occu

pies one slot in the module mounting unit, adjacent to its NIS

module. The circuit board contains the serial communication

circuitry necessary for it to communicate with another INIIT12 module.

Two captive latches on the INIIT12 faceplate secure the module

in the MMU card cage. The faceplate contains eight CPU LEDs,

a red/green status LED, and a stop/reset switch.

Interface termination is through a cable connection between

P3 of the INIIT12 module and an NTMP01 Multi-Function Pro

cessor Termination Unit or NIMP01 Multi-Function Processor

Termination Module. INIIT12 module power and I/O expander

bus connections follow the same connector assignments com

mon to most INFI 90 OPEN modules (P1 for power, P2 for I/O expander bus).