Chapter 8 • Troubleshooting
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Chapter 8. Troubleshooting
If you have difficulty with your Navigator K2 keypad, read through these
troubleshooting tips and common questions before contacting technical support.
If you continue to have difficulties, do not hesitate to contact technical support. See
chapter 9 for more information on contacting Sonance.
COMMUNICATION PROBLEMS
Make sure you are using the programming cable that was supplied with the unit
and that both ends are connected securely.
If the only serial port on your computer has a serial mouse plugged into it, you can
disconnect the mouse and use that port with the Navigator K2 Manager software. If
you do this, you MUST restart Windows with the mouse unplugged before
Navigator K2 Manager will be able to use the port.
If the serial port you are trying to use is COM 3 or COM 4, make sure that it is not
sharing an interrupt request (IRQ) line with COM 1 or COM 2. The default
configuration for COM 1 and COM 3 both share IRQ 4, and COM 2 and COM 4 both
share IRQ 3. Contact your computer manufacturer for more information on
configuring your serial ports.
If you are trying to use the second serial port on your computer, it is possible that it
is disabled in the computer’s CMOS (or BIOS) setup. Consult your computer’s
documentation or contact your computer manufacturer for more details.
If your computer is a notebook or laptop, be sure that the external serial port is
enabled properly. Some laptops, especially (but certainly not limited to) IBM
ThinkPads, have their external ports disabled by default.
• If your computer has an IrDA infrared port, there may be a setting where
you can choose between the infrared port and the serial port.
• Some portable computers with Advanced Power Management disable the
external serial ports to conserve battery power.
• Some with PCMCIA card sockets reserve the COM 2 connector for use with a
PCMCIA card.
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