Specifications

Hardware Configuration
2–49
You do not need to add a +12V supply to program Flash EPROMs installed in the byte-wide socket, or
for the onboard Flash device that stores the ROM BIOS, video BIOS, and optional Ethernet boot PROM
code. An onboard supply provides the programming voltage. This supply does not provide power to the
expansion bus. Most Ampro expansion products provide onboard DC-to-DC converters to convert the
+5V supply to other voltages they require.
The expansion bus pin numbers for P1 and P2, 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
alpha-numeric designations (A1, A2…, B1, B2…, etc.). Similarly, the rows of J21 are designated A, B,
C, and D. Figure 2–1 shows the location of each connector.