What Settings do I use with the Infrared Remote Receiver with my Computer?
WARNING! UNPLUG THE BATTERY CHARGER FROM THE IRR before you change any settings on the IRR or change settings on the device connected to the IRR!
When you are ready to use the IRR, plug the battery charger back in.
NOTE: In general, if you are connecting the IRR to a computer at 1200 baud, all the buttons should be in the Out position. (See below for exceptions)
Turn the IRR over so that you are looking at the label on the bottom of the case.
1. Button B Sets the Printer Port
Button Out = Parallel Port is set for parallel printer
Button In = Serial Port is set for serial printer
Set Button B if you are connected to a printer.
The IRR supports a serial or parallel printer. Most IBM serial or parallel printers should work with the IRR.
Macintosh printers that can be connected to a 9-pin serial port may also work with the IRR.
NOTE: If you are connected to a computer, the position of this button does not matter
2. Button A Sets the IRR Unit Address
Button Out = Unit 1
Button In = Unit 2
NOTE: Button A should be set in the OUT position in most circumstances. Exception: If your circumstances are similar to those mentioned below, please call the PRC Service Department for further instructions. 1-800-262-1990.
Set Button A if you are in a room where there is more than one IRR and AAC device that will be sending the same signals at the same time but for a different computer or printer.
One IRR and all the devices it will be receiving signals from should be assigned Unit Number 1. The second IRR and all the devices it will be receiving signals from should be assigned Unit Number 2.
3. Button C Sets the IRR Protocol
Button Out = Packet
Button In = Pipeline
Set this button to tell the IRR how to read the infrared signals that it receives.
Packet Protocol
The IRR communication protocol has a "packet" feature that allows you to have more than one AAC device and IRR in the room, with all of them on at the same time. You designate each separate infrared device by a Unit number. Packet protocol also checks for errors in the infrared communication and screens out infrared information from outside sources. This provides for more accurate infrared communication.
The IRR baud rate must be set at 1200 if you are using Packet Protocol. If you are using a DIRECTOR II you must use Packet Protocol.
If you are in a multiple IRR and communication device environment, you must use Packet Protocol and set a Unit Number (Button B).
Pipeline Protocol
Pipeline protocol does not provide infrared communication with error checking. It does not provide you with the ability to use Unit numbers for more than one infrared device. It does not screen out infrared information from other sources. This means that accurate infrared information may be difficult to achieve in some settings.
Pipeline Protocol can only be used with a communication device that has built-in IR.
T-TAM: If you are using a communication device that has built-in IR along with an older T-TAM, a computer and an IRR, you can use Pipeline Protocol and set the baud rate (Button D) to 300.
4. Button D Sets the Baud Rate
NOTE: If you use 300 baud, then you must use Pipeline Protocol.
Button Out = 1200
Button In = 300
This setting determines how fast information is transferred between devices.
See the T-TAM note above for baud information.
If you are using an IRR, communication device with built-in IR, T-TAM or SerialKeys, the baud rate you select must be the same in all devices.