© Polycom, Inc. 199 ViewStation FX/VS 4000 User’s Guide
F
ISDN Information
If you are not connected to an internal phone system, called a PBX,
you will need to connect the ISDN cables from your ViewStation to
the IMUX module to the NT-1 device, which is connected to an ISDN
wall jack. Once everything is connected, their lights will indicate
whether or not they are connected properly. The lights, however, do
NOT indicate that the SPIDS, switch type, and ISDN numbers have
been correctly entered into the ViewStation. The following are
sample NT-1 settings. For more detailed diagnostic information, see
the manual that was shipped with your particular NT-1 device.
Note If you are outside the United States or Canada, your service
providers or PTTs generally provide the network termination
(NT-1) device.
On an ADTRAN NT-1 ACE ISDN termination unit, you should see
the following status lights when your ISDN lines are properly
connected.
The dip switches should be set as follows:
Status
Ready Error Power
ON OFF ON
Configuration Termination
SHORT
LONG
NONE
50
100
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