Specifications

192 Digital I/O Guide20

Hardware Setup Changes

Removing a Card

In this case, the Hardware Setup dialog will re-

flect the change by setting the removed inputs

and outputs to None. The remaining inputs and

outputs will function normally.

For example, if you remove one of the Digital

I/O cards, the second Digital tab will disappear

from the Hardware Setup dialog.

You will also lose the configuration of any pairs

of inputs or outputs that were assigned to the

card being removed.

Replacing an I/O Card

To replace a card:

1 Power off and disconnect the 192 Digital I/O

from your HD 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 19.

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.

Example of an empty bay. Note guide rails along the

inside edge

Placing the edge of the card into the guide rails