PRV-0414
User Manual
Page 4 of 14
MNL-0337-01 RevH3
REF. ECO-3163
Effective: 01 Feb 10
Chapter 1 Introduction
This section provides a functional description of the PRV-0414.
Functional Description
The PRV-0414 PC/104 Double Height Adapter is a low-cost interconnection board that gives embedded PC/104
computer systems a method for connecting circuit board modules taller than the prescribed PC/104 specification
height. The adapter is especially useful for high-profile PC/104 CPU, power supply and hard drive modules that
incorporate onboard fans or heatsinks for thermal management, as these types of boards commonly exceed the
PC/104 form factor height of 0.60” and take up two card slots. Overcoming PC/104 height infringement can also
be especially useful during prototype development when placing a prototype card at the end of a card stack
becomes impractical.
Measuring only 3.550" x 0.550" in size, the PC/104 Double Height Adapter provides clearance for tall board
components in a card stack, while offering a 16-bit pass-through header for all standard PC/104 bus signals and
a 10-pin power connector for power/grounding through the PC/104 bus. The adapter also has standard PC/104
board mounting holes and can be placed on top or bottom of any PC/104 module with its 104-pin and socket
connector.
Included with the adapter is also a set of nylon stand-off spacers for board mounting and a second, smaller
(3.550" x 0.40") circuit board used to maintain proper spacing on the other side of the PC/104 slot. Stand-offs
can be inserted into mounting holes for the adapter and adjacent PC/104 modules, or alternatively, the PC/104
card stack can be securely mounted in a PC/104 railed card cage without any standoffs required.
Features
16-Bit PC/104 (ISA) bus
Set of 8 Plastic Board Stand-offs (with Nuts and Screws)
Standard PC/104 Mounting Holes
10-Pin Power Header (Dual Row 0.100 inch)
About PC/104
The PC/104 specification is characterized by its small form-factor (3.550" x 3.775"), stackable 104-pin/socket
ISA bus connector, and reduced bus signal drive, making PC/104's size, durability, expandability, reliability,
quality, and power consumption ideal for embedded computing. PC/104 technology leverages the same readily
available development tools used with personal desktop computers to dramatically improve time-to-market for
embedded systems development. The full PC/104 specification can be found at the PC/104 Consortium Web
site:
http://www.pc104.org/technology/pc104_tech.html