Polycom 128 User Manual

Page of 140
ViewStation User’s Guide
129
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.
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:
NOTE:
If you are outside the United States or Canada, your 
service providers or PTTs generally provide the network 
termination (NT-1) device.
Status
Ready
Error
Power
ON
OFF
ON
Configuration
Termination
SHORT
LONG
NONE
50
100
ISDN Information