Ampro Corporation 486E Expansion Bus Connector Pinouts

Product Reference
2–65
Expansion Bus Connector Pinouts
Tables 2–34 through 2–37 show the pinout and sign al fu nctio ns on the PC/1 04-comp lian t exp ansio n
bus connectors. The expansion bus pin numbers shown in the following tables correspond to the
scheme normally used on ISA expansion bus card sockets. Rather than numerical designations (1,
2, 3) they have alphanumeric designations (A1, A2… , B 1, B2…, etc.).
The Little Board/486e CPU does not generate ±12VDC or -5VDC for the expansion bus. If devices
on the bus require these voltages, they can be supplied to the bus connector from the Power
Connector (J7).