Specifications

Troubleshooting
76 ISDN-Controller B1 PCI v4.0 – 16 Troubleshooting
16 Troubleshooting
This chapter describes general malfunctions and specific
error messages, and suggests remedies. The error messag-
es are grouped according to the operating systems in which
the ISDN-Controller B1 PCI v4.0 can be operated.
16.1 General Malfunctions
The AVM ISDN-Controller is not detected or not initialized.
Have you installed new hardware components or changed
the configuration of existing hardware?
If you combine adapters without plug-and-play support
(Legacy) such as the AVM ISDN-Controller B1 v3.0 in the
same system with PCI or ISA plug-and-play cards, the
resources (I/O addresses and IRQ levels) used by the hard-
ware without plug-and-play support should be so designat-
ed in the computer’s BIOS. Otherwise, system resources
may be allocated to more than one adapter, resulting in
malfunctions. Please see your computer or mainboard man-
ual.
You are unable to establish an ISDN connection.
If the ISDN-Controller is correctly installed but you are un-
able to establish a connection, check for the following con-
ditions:
 Is the ISDN-Controller firmly inserted in the PCI slot? Is
its slot plate screwed down?
 Are the ISDN cable connectors firmly connected to the
ISDN-Controller and the ISDN socket?
 Is your ISDN line active? Use another terminal device,
such as an ISDN telephone, to check it.
 Is your network terminator (NT) installed correctly?
Some NTs must be connected to an electricity supply
as well as to the incoming ISDN line.