This is the original CPU board for the Extended Controller, Extended Reserve Controller Director, and Data Hiway Port.

This version of the processor board uses a faster microprocessor than the one used in the Basic Controller. This processor card can be used in the Basic Controller and PIUs, but because of the speed difference, the original processor from the Basic Controller and PIUs cannot be used in devices requiring this -002 version of the processor card.

This card contains the microprocessor that drives these Hiway devices. A single red LED on the card edge indicates that the procesor is running.

WPC has a special-built processor card tester that is used on all of our processor cards prior to our regular system test. This microprocessor-controlled tester executes a series of assembly-language programs designed to verify the logical states of the card's digital circuitry. Once all circuits on the card have been verified as operating correctly, the card is system-tested for a minimum 48-hours in our TDC 2000 test bed. Not even the original manufacturer tests their processors this thoroughly.

No longer available from Honeywell (replaced by the Universal Processor), this card is in stock and available from Western Process Computers, Inc.

Troubleshooting Tip: Failure of this processor card is the most common failure in the Hiway boxes using this card. When toubleshooting a failed EC, ERCD, or DHP, rule out a processor failure first.