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2
Preparation For Programming
Step 1: Turn off your computer
This chapter describes connection of Jarltech Model 8081
keyboards to a host computer for programming. The keyboard
is programmed through the RS232 port, regardless of whether
the ultimate interface during operation will be RS232 or
keyboard wedge.
Disconnect the power to your computer by unplugging it from
the power source. Remove the access cover to your com-
puter. Mount the +12V DC power plate on an available
expansion slot in the back of your computer. Attach the 4-pin
male connector to the open female connector of the same type
of the switching power in your computer.
Review the installation diagram. Replace the computer's
access cover and power cord once the internal connections
are made.
If you have not already done so, turn off your computer to
avoid any accidental damage to the keyboard and your
computer.
Step 3: Using internal power source
Step 2: Decide on power access
The keyboard re12V DC for programming via the
RS232 port. This may be provided through an internal
connection in your computer or through an external connec-
tion to a 110V/220V adapter. The components for an internal
connection are provided. If you are using an external adapter,
be sure that it conforms with the specifications listed in
Appendix III and then go to Step 4.