Ampro Corporation LITTLE BOARD 5001451A User Manual
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Most I/O connectors are shrouded dual-row male headers for use with flat ribbon (IDC) female
connectors and ribbon cable.
Note
Ampro recommends using “center-bump polarized” connectors to
prevent accidentally installing cables backwards.
You can also design a PC board assembly, made with female connectors in the same relative
positions as the Little Board’s connectors, to eliminate cables, meet packaging requirements, add
EMI filtering, or customize your installation in other ways. Precise dimensions for locating
connectors are provided in Figure 2-1.
The ISA portion of the PC/104-Plus bus appears on connector J1A, J1B, J2C, and J2D. You can
expand the system with on-board MiniModule products or other PC/104-compliant expansion
modules. These modules stack directly on the connectors, or use conventional or custom expansion
hardware, including solutions available from Ampro.
The PCI portion of the PC/104-Plus expansion bus appears on connector J3. It uses a 2 mm 4-row
connector called out in the PC/104-Plus draft specification. Like the J1, J2 connector, J3 has both
male and female connections, allowing for “stackthrough” assembly.