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Install the CPU-1474/84
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Install the CPU-1474/84
Stacking the CPU-1474/84 with other PC/104 and PC/104-Plus
devices
The ISA and PCI Bus connectors of the CPU-1474/84 are located on the bottom side of the Carrier
module only, and are designed to allow the connection on the top position of the stack formed by other
PC/104 and/or PC/104-Plus devices.
We recommend following the procedure below to ensure that stacking of the modules does not
damage connectors or components.
WARNING!
Always use appropriate antistatic precautions when handling the boards.
1. Turn off all power to the PC/104 device and its peripherals.
2. Select and install standoffs to properly position the module on the PC/104 stack.
3. Remove the module from its antistatic bag.
4. Check that keying pins in the bus connector are properly positioned.
5. Check the stacking order; make sure an XT bus card are not placed between two AT bus cards as
this will interrupt the AT bus signals.
6. Hold the module by its edges and orient it so that the bus connector pins line up with the matching
connector on the stack.
7. Using even pressure press the module onto the PC/104 stack.
The figure below shows a module stack with the CPU-1474/84 on the top of two PC/104-Plus modules.
If standard PC/104 modules are used in the stack, they must be the lowest modules because they will
normally not include the PCI bus. An adapter module must be used.
CPU-1474/84
Carrier Module