User's Guide

31Chapter 2
port the IR Receiver is connected to. If you’re not sure, refer to the
Port Check section in Chapter One for information on testing the
COM ports for the connection.
PRS System Installation – IR Clicker
Troubleshooting
the IR Receiver
Connection
If the IR Receiver is not being recognized on any of the COM Ports, first,
check all connections to make sure they are secure. From the Connection
Menu, select a COM Port and run a Port Check, as documented in Chapter
One, PRS Menus. Repeat for each COM Port. If the IR Receiver still fails to
show up, leave it connected and restart the computer. In most cases, the IR
Receiver will now show up as connected to the COM Port.
The software for some serial devices will take over a COM Port and fail to
release it when the device is disconnected. If the IR Receiver is attached to
one of these COM Ports, Windows won’t recognize it because the Port has
been commandeered by another application. We’ve seen this behavior when
a Palm Pilot, for example, had been connected to the COM Port to which the
IR Receiver is currently connected.
IR Clickers require little in the way of setup. It’s simply a matter of
installing two batteries, as follows:
1 A tiny screw holds the battery cover in place on the back of the unit.
IR Clickers are shipped either with the screw in place, or taped inside
the lid of the Clicker box. If the screw is in place, remove it now.
2 Remove the battery cover by pushing down on the thumb grip and
sliding it in the direction of the arrow.
3 Insert two AAA batteries, positioning them properly to ensure the
correct polarity.
4 Slide the battery cover back on and reinsert the screw to hold it in
place.
IR Clicker Setup
and Operation
Low Confidence Key
On/Off Power
Signal Direction
LED Light
Response Keys
High Confidence Key