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port. Run the communications software and set the local echo to "off" and
hardware flow control control to "none". When using Hyperterminal, choose a
direct connection to the port. Open the port with the communication software.
Any alphanumeric character typed on the keyboard should cause the Lite-Link
to flash, and the character to appear on the screen.
If the Lite-Link does not flash during typing, the Lite-Link may need repair.
If the Lite-Link flashes during typing, it should also work with PowerWatch
software. Exit the communications program, and re-start PowerWatch. If Lite-
Link does not flash when running PowerWatch, re-install PowerWatch
software.
· Check your mouse driver. Certain older or inferior drivers for mice,
trackballs, and laptop "pointers" are known to interfere with serial port
operation. If, after disabling your mouse driver, the Lite-Link functions
normally, try using a high quality mouse driver such as Logitech or
Microsoft.
· Try another computer. An alternative to serial port troubleshooting is to
use a different computer. Another computer with its serial ports set up
correctly will confirm that there is an incorrect set up or software/hardware
conflict with the original PC.
ACR Systems Inc.
Ó 2007,
2007 ACR Systems Inc.
Troubleshooting
74
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