Isdn Information; Sample Nt-1 Settings - Polycom ViewStation EX User Manual

ISDN Information

Sample NT-1 Settings

© Polycom, Inc.
If you are not connected to an internal phone system often, called a
PBX, you need to connect the ISDN cables from your ViewStation
IMUX module to the NT-1 device. An NT-1 device is used with the
North American ISDN U interface.
The lights on the IMUX indicate whether or not the ISDN lines 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.
On an ADTRAN NT-1 ACE ISDN termination unit, you should see
the following status lights when your ISDN lines are properly
connected.
Ready
ON
The dip switches should be set as follows:
Configuration
SHORT
LONG
203
Status
Error Power
OFF ON
Switches
Termination
NONE
50
100
D
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