ADTRAN Total Access 3000 Specifications Page 13

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Installation
61181310L2-5D 5
Front Panel LEDs
The T1-OR/NIU provides front panel LEDs to display status information. Table 2 shows the
LEDs and status descriptions.
Table 2. Front Panel LEDs
Label Status Description
PWR
{ Off
z Green
4 Green Flashing
z Yellow
4 Yellow Flashing
No power to module
Module in service
Module in service and being accessed from SCU front panel craft
interface port
Module is out of service
Module is out of service and being accessed from SCU front panel
craft interface port
DSX
{ Off
z Green
DSX interface loss of synchronization
Normal
DS1
{ Off
z Green
DS1 interface loss of synchronization
Normal
TST
{ Off
z Yellow
4 Yellow Flashing
Loopback not active
Loopback active
Loopback arming
ALM
{ Off
z Red
No alarm condition detected
Local alarm condition detected
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