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Board Layout
Card Configuration
The maximum configuration for the PCI bus of PC/
104+ modules is FOUR plus the host board. If standard
PC/104 modules are used in the stack, they must be the
top module(s) because they will normally not include
the PCI bus.
If you stack more than one PCI-104+ or PC/104+ mod-
ule to a host board. You have to set the modules to dif-
ferent PCI numbers through SW2
SW2 Setting
1
2
OF
OFF
ON
OFF
OFF
ON
ON
ON
2 Startup Manual
PCI Number
0
1
2
3
Hardware Installation
Warning! Turn off your PC whenever you install, remove
connect or disconnect cables to the PCM-3641P
Installing the module on a CPU card
1. Turn the PC's power off. Turn the power off to any
peripheral devices such as printers and monitors.
2. Disconnect the power cord and any other cables from
the back of the computer.
3. Remove the system unit cover
4. Remove the CPU card from the chassis (if necessary)
to gain access to the card's PC/104+ connector.
5. Screw the brass spacer (included with the module)
into the threaded hole on the CPU card. Do not
tighten too much, or the threads may be damaged.
6. Carefully align the pins of the PCM-3641P with the
PC/104+ connector. Slide the module into the con-
nector, do not push too hard.
7. Secure the module to the CPU card to the threaded
hole in the CPU card using the included screw.
8. Attach any accessories to the PCM-3641P.
9. Reinstall the CPU card and replace the system unit
cover. Reconnect the cables you removed in step 2.
Turn the power on.
Connecting to another PC/104+ module.
1. Insert the pins of connector CN15 into the piggy-
back connector on the other PC/104+ module.
2. Screw the PCM-3641P to the brass spacer. This com-
pletes the hardware installation.
Pin Assignments
The following table and figure show the pin assignment
for the DB9 connector.
RS-232 DB9 Connector Pin Assignments
Pin
RS-232
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
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