Solving Infrared Problems

Problem

Possible Cause

Solution

 

 

 

Cannot

The required software

communicate with

is not running on both

another computer

computers.

Install the required software on the second computer, start the second device, and start the program on both computers.

 

One computer does

Communication between

 

not have an IrDA-

infrared devices must use

 

compliant infrared

the same protocol.

 

port.

 

 

 

 

 

The pathway between

Remove the obstruction,

 

the infrared ports is

align the infrared ports to

 

obstructed, one port is

within 30 degrees, and

 

more than 30 degrees

position computers within

 

(plus or minus 15

1.5 feet (about 0.5 meter)

 

degrees off the center

of each other.

 

line) from the other, or

 

 

the ports are more

 

 

than 1.5 feet (about

 

 

0.5 meter) apart.

 

 

 

 

 

There is an interrupt

Check for IRQ conflicts in

 

request (IRQ) conflict.

the Device Manager on

 

 

one or both computers. If

 

 

the Device Manager

 

 

indicates an IRQ conflict,

 

 

reassign the IRQ number

 

 

for one of the conflicting

 

 

devices.

 

 

 

 

There is a baud rate

Select the same baud

 

conflict.

rate for both computers.

 

 

 

 

There is a conflict with

Select the same “# bits”

 

the # bits.

setting for both

 

 

computers.

 

 

 

 

There is a stop bit

Select the same stop bit

 

conflict.

for both computers.

 

 

 

 

There is a parity

Select the same parity

 

conflict.

setting for both

 

 

computers.

 

 

 

 

 

Continued

16-28 Troubleshooting