Specifications

192 Digital I/O Guide12
Hardware Setup Changes
The Hardware Setup dialog reflects the removal
of an I/O card by settings corresponding inputs
and outputs to None. The remaining inputs and
outputs will function normally.
Replacing an I/O Card
To replace a card:
1 Power off and disconnect the 192 Digital I/O
from your system.
2 Make sure that the 192 Digital I/O is plugged
in so that it is grounded.
3 Remove the top cover of the 192 Digital I/O
by extracting all of the 16 small phillips-head
screws around the edges of the top cover, and
lifting it off.
4 If the card you are replacing is still connected
to the 192 Digital I/O, see “Removing an
I/O Card” on page 11.
5 To discharge any static electricity, touch the
power supply casing. It is a good idea to do this
often, throughout the process.
6 Look into the empty bay to locate the guide
rails for the card to slide in on.
.
7 Slide the edges of the card into the guide rails
on each side of the bay. Push the card all the way
in until the card’s faceplate is nearly flush with
the rear panel of the 96 I/O.
8 Screw the card’s faceplate onto the rear panel
surface of the 192 Digital I/O with the same
screws you removed from the empty bay cover.
9 Locate the raised ridge in the middle of the 50-
pin cable which connects to the 192 Digital I/O
chassis. This ridge is only on one side of the con-
nector, and there is a matching groove on only
one side of the 50-pin connector on the card.
Example of an empty bay. Note guide rails along the
inside edge
Placing the edge of the card into the guide rails
Locating the ridge on the 50-pin cable and the matching
groove on the 50-pin connectors on the card