Ampro Corporation 486E manual Onboard MiniModule Expansion, Using Standard PC and AT Bus Cards

Product Reference

Onboard MiniModule Expansion

One or more Ampro MiniModule products or other PC/104 modules can be installed on the Little Board/486e expansion connectors. When installed on P1 and P2, the expansion modules fit within the Little Board/486e’s outline dimensions. Most Ampro MiniModule products have stackthrough connectors compatible with the PC/104 Version 2.1 specification. Several modules can be stacked on the Little Board/486e headers. Each additional module increases the thickness of the package by 0.66 inches (15 mm). See Figure 2–12.

PC/104 Module

4-40 nut

0.6 inch standoff

0.6inch standoff

4-40 screw

PC/104 Module

Little Board/486e

Stackthrough

Expansion

Bus Headers

Figure 2–12. Stacking PC/104 Modules with the Little Board/486e CPU

Using Standard PC and AT Bus Cards

Since the PC/104 bus is electrically identical to ISA, it is also possible to attach conventional 8-bit and 16-bit ISA expansion cards to the Little Board/486e CPU. This requires some type of passive adapter to perform the physical transition from PC/104 bus headers to standard ISA slots. Contact Ampro to use conventional ISA expansion cards in Little Board/486e systems.

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