Comtrol VS3000S - Manual (Page 27)

Problem Resolution Checklist 27
Troubleshooting
This section discusses the following topics:
• Isolating and resolving problems
• Understanding the LED displays
• Obtaining software and/or document updates
• Placing a call to Comtrol Technical Support
Problem Resolution Checklist
If installation fails or the VS3000 does not operate as expected, try the
following before calling the Comtrol technical support line:
• Check for proper cable connections. In particular, check to make
sure that you have an Ethernet cable on the Ethernet port and
ISDN cables on the ISDN ports. The two types of cables are easy to
swap by accident.
• Turn the VS3000 on and off and watch for errors on the LEDs using
the Understanding the LEDs subsections. (These are found on the
following pages.)
• Check the VS-Link software to make sure that the Network
Address (MAC) in the software matches the Network Address on
the VS3000.
• Verify that you have the correct model (VS3000U or VS3000S) for
your locale. The VS3000U is for North American use only. The
VS3000S is for international use, but requires an NT1 terminating
unit. For more information see Installing the Hardware.
• If you are operating in a multiple-server environment, check to
make sure that you are controlling the VS3000 from its primary
server, that there is only one primary server assigned to this
particular VS3000, and that no backup server has pre-empted the
primary server.
Note: Backup-to-primary switching is not automatic. Once a
backup server takes over control of a VS3000, you must
follow a manual procedure to restore control to the primary
server. This procedure differs depending on your network
operating system. See the chapter for your operating system
for more information.