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Monitoring the Unit
4-13
7984-A2-GB20-10
February 1999
7984 Standalone Termination Unit LEDs
The following table contains a description of the LEDs on the 7984 Standalone
Termination Unit front panel.
POWER
ALARM
TEST
DSL
DSX-1
98-16116a
7984 M/HDSL
TM
TM
Type LED LED is . . . Indicating . . .
General
POWER Green
Off
Green,
Flashing
Unit has power.
No power to the Unit.
Unit is in minimum mode and a download is
required.
ALARM Red
Off
Device failure, or Power-On Self-Test (POST)
has failed.
Self-test passed.
TEST Amber
Amber,
flashing
Off
Loopback test or 511 test pattern in progress.
Self-test in progress.
No tests.
DSL DSL Green
Amber
Amber,
flashing
Off
DSL link is up.
DSL training in progress.
An OOF condition exists.
The DSL Link is down.
DSX-1 DSX-1 Green
Amber
Amber,
flashing
Off
Recoverable signal present on the DSX-1
network.
Remote Alarm Indication (RAI) present.
An OOF or AIS condition exists.
The DSL LINK is down.