Northern Telecom M5317TX Installation Manual page 24

14 Preparing to install the M5317TX
Figure 2-2: Northern Telecom Stand-alone NT1
M5317TX and CustomNet Installation Guide
Confirming NT1 operation
Whether the NT1 is a stand-alone or module version, both types
are working when the status indicators appear as summarized in
the following chart:
Northern Telecom DMS NT1
Status Indicator
Power
S/T
U-sync
Test
Status indicators for the AT&T NT1 are as follows:
AT&T NT1
Status Indicator
Power
Terminal Error
Active
Line Error
If the NT1 does not show these indicators, it is not ready for use
with the M5317TX. Contact your supervisor or the System
Administrator on site for direction. For more information
concerning Northern Telecom NT1 configurations, consult the
NT1 and S/T Bus Installation Guide, NTP 297-2451-207.
LED light
ON
OFF
OFF
OFF
LED light
ON
OFF
ON
OFF