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Table
Solving Infrared Problems
Problem | Possible Cause | Solution |
Cannot communicate with | The appropriate software is | Install the appropriate software |
another computer. | not running on both | on the second device, start the |
| computers. | second device, and start the |
|
| program on both computers. |
| The other computer does not | Communication between infrared |
| have an | devices must use the same |
| infrared port. Your Compaq | communications protocol. Check |
| computer uses the IrDA | the manufacturer’s instructions for |
| communications protocol. | connecting with infrared devices |
|
| or try connecting with a device |
|
| you know to be |
Cannot communicate with | The pathway between the | Remove the obstruction, align |
another computer (cont.) | infrared ports is obstructed, | the infrared ports to within 30 |
| one port is more than 30 | degrees, and position computers |
| degrees (plus or minus 15 | within 1.5 feet (about 0.5 meter) |
| degrees off the center line) | of each other. |
| from the other, or the ports |
|
| are more than one meter |
|
| apart. |
|
| There is an interrupt request | Check for IRQ conflicts in the |
| (IRQ) conflict. | Device Manager If two devices |
|
| have the same IRQ address, |
|
| reassign one of the devices. |
| There is a baud rate conflict. | Select the same baud rate for |
|
| both computers. |
| There is a conflict with the # | Select the same # bits setting for |
| bits. | both computers. |
| There is a stop byte conflict. | Select the same stop byte for |
|
| both computers. |
| There is a parity conflict. | Select the same parity setting for |
|
| both computers. |
Cannot transmit data. | Direct sunlight, fluorescent | Remove the interfering light |
| light, or flashing incandescent | source(s). |
| light is close to the infrared |
|
| connections. |
|
| There is interference from | Keep remote control units such |
| other wireless devices. | as wireless headphones and |
|
| other audio devices away from |
|
| the infrared connections. |
| There is a physical | Do not place objects that will |
| obstruction in the way. | interfere with a |
|
| transmission between the two |
|
| units. |
| One of the units was moved | Do not move either unit during |
| during data transmission. | data transmission. |
| The orientation of the units is | Adjust the devices so that they |
| wrong. | point directly at each other. |
| The distance between the | Verify that devices are not more |
| units is too great. | than 1.5 feet (0.5 meter) apart. |
|
| Continued |