User`s manual

20
Connecting to the PC/104 Bus
Since this cpuModule does not include a video display controller, you will probably wish to stack
the cpuModule with another card to add video. For example, you may add the CM112 utilityMod-
ule, which adds a VGA display controller with flat-panel support and a floppy and IDE hard drive
controller, all on one PC/104 module.
The PC/104 bus connectors of the cpuModule are simply plugged onto a PC/104 stack to connect to
other devices.
We recommend you follow the procedure below to ensure that stacking of the modules does not
damage connectors or electronics.
• Turn off power to the PC/104 system or stack.
• Select and install standoffs to properly position the cpuModule on the PC/104 stack.
• Touch a grounded metal part of the rack to discharge any buildup of static electricity.
• Remove the cpuModule from its anti-static bag.
• Check that keying pins in the bus connector are properly positioned.
• Check the stacking order; make sure an XT bus card will not be placed between two
AT bus cards or it will interrupt the AT bus signals.
• Hold the cpuModule by its edges and orient it so the bus connector pins line up with
the matching connector on the stack.
• Gently and evenly press the cpuModule onto the PC/104 stack.
WARNING! Do not force the module onto the stack! Wiggling the module or apply-
ing too much pressure may damage it. If the module does not readily
press into place, remove it, check for bent pins or out-of-place keying
pins, and try again.