Ampro Corporation 5001451A Using Standard PC and AT Bus Cards, Expansion Bus Connector Pinouts

Most Ampro MiniModule products have stackthrough connectors compatible with the PC/104 specification. You can stack several modules on the Little Board P6d headers. Each additional module increases the thickness of the package by 0.66 inches (15 mm). Thus, a 3-module system fits within the outline of the Little Board and within a 2.4-inch vertical space.

Figure 2-6 shows an example of how PC/104 modules stack on the Little Board P6d module.

4-40 screws

PC/104 Module

0.6 inch spacers	PC/104 Plus Module
	Stackthrough
	Expansion
PCI Stackthrough	Bus Headers
Headers
	Little Board P6d
4-40 nuts

Figure 2-6. Stacking PC/104 Modules on the Little Board P6d Module

Using Standard PC and AT Bus Cards

Ampro offers several options that allow you to add conventional 8-bit and 16-bit ISA expansion cards to the Little Board P6d system. Contact Ampro for further information about optional bus expansion products.

Expansion Bus Connector Pinouts

Table 2-43and Table 2-44show the pinout and signal functions on the ISA portion. Table 2-45shows the PCI portion of the PC/104-Plus expansion bus connectors. These include J1, J2, and J3. The expansion bus pin numbers for J1 and J2 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 J3 are designated A, B, C, and D.

The Little Board P6d system does not generate ±12VDC, 3.3V, or -5VDC for the expansion bus. If devices on the bus require these voltages, -12V and -5V can be supplied to the bus connector from the Utility 1 connector (J19). +12V can be supplied through J10-4. If a PCI peripheral board requires 3.3V, you can attach this voltage to J10-5.

2-44