5
Configuring the Hardware
Configure the card to meet your interfacing requirements by arranging hardware jumpers,
as described in the following procedure
:
CAUTION
Only qualified service personnel should configure of the GPIO card.
For your safety and to avoid equipment damage, always turn OFF power
and unplug the printer’s power cord before beginning this installation and
when performing service.
Always wear a wrist strap and follow standard ESD prevention measures
when handling the card.
A)
Turn off and disconnect the power cord from the printer. Remove the printer’s cover if
needed.
B)
Set the jumpers on the card (detailed below)
to meet the requirements of your
application. Once complete re-install the printer’s cover.
Four dedicated inputs
control printer functions. Designed to interface to open-
collector outputs, these inputs require no external pull-ups, while blocking diodes
allow the use of totem pole outputs from +4.5 VDC to + 26 VDC. Optical isolators
provide galvanic isolation. Two print control interface circuit examples are given on
the following page.
