GSC3000 & VRC2500 INSTALLATION & OPERATION MANUAL
APPENDIX D: TROUBLESHOOTING
138
Lynx won't establish a direct / full-
time connection to my site.
(continued)
Lynx won't establish a dialup
modem connection to my site.
You are not using the appropriate
cable to make your connection.
If using a full-time modem, it is not
configured properly.
The wrong modem is specified in
the Site Wizard.
The phone number is not specified
correctly in the Site Wizard.
Either your PC modem or the
external modem at the remote site
is not set up properly.
The remote modem was not
identified by the I/O unit.
Radio Frequency Interference is
inhibiting communications.
The modem's auto-answer function
is configured incorrectly.
For a direct serial connection to
the I/O unit, use the supplied null
modem cable. For a full-time
(dedicated line) connection, use
the DB9 to DB25 serial cable
supplied with the full-time modem.
Refer to Chapter 6 for full-time
modem configuration.
Click the Edit Site icon and
advance through the Site Wizard
until you reach the Primary or
Backup Connection page. Verify
that the correct modem is specified
in the Site Wizard.
Verify the phone number entered
on the Primary or Backup
Connection page in the Site
Wizard. Any dial-out prefixes
should be entered in Windows
when you set up your modem; they
do not have to be reentered in the
Site Wizard. If the modem is
connected to a Voice Interface, be
sure ,,,020 is entered in the dialing
string (see page 18).
Check that the modems are
configured as described in Chapter
6.
After installing the modem at the
remote site, cycle the power on the
unit you just connected it to.
Install an RFI filter next to the
modem at the remote site.
When you connect a dial-up
modem to a unit, the modem's
auto-answer function must be
enabled in order for the unit to
answer incoming calls. When you
connect a dial-up modem to a
Voice Interface or the DIAL-UP port
on the VRC2500, leave auto-
answer off to avoid connection
conflicts.
If this happens....
It could be that...
Try this...
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