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CN7-CN10 RS-232/422/485 Model Select
CH1
CH2
CN7
CN8
Hardware Installation
Warning! Turn off PC whenever you install, remove connect
or disconnect cables to PCM-3612I
Installing the Module on a CPU Card:
1. Turn the PC 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 PCI-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-3612I with the
PCI-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-3612I.
9. Reinstall the CPU card and replace the system unit
cover. Reconnect the cables you removed in step 2.
10. Turn the power on.
Connecting to Another PCI-104 Module:
1. Insert the pins of connector CN6 into the piggy-
back connector on the other PCI-104 module.
2. Screw the PCM-3612I to the brass spacer. This com-
pletes the hardware installation
2 Startup Manual
CH3
CH4
CN9
CN10
Pin Assignments
The following table and figure shows pin assignments
for the DB9 connector.
Pin Assignment of Male DB9 on cable
Pin
RS-232
RS-422
1
DCD
Tx-
2
RxD
Tx+
3
TxD
Rx+
4
DTR
Rx-
5
GND
GND
6
DSR
RTS-
7
RTS
RTS+
8
CTS
CTS+
9
RI
CTS-
RS-485
Data-
Data+
1 2 3 4 5
-
-
GND
-
6 7 8 9
-
-
+
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