Front Panel Leds - Paradyne Hotwire 8774 User Manual

4. Monitoring the Unit

Front Panel LEDs

The following table describes the meaning and states of the LEDs on the
faceplate.
* Slow Cycling: LED turns off and on in equal duration once per second.
TDM
SDSL
8774
00-16144-01
4-14
Type LED
SYSTEM OK
(Green)
Alrm
(Amber)
Test
(Amber)
DSX-1 1, 2, 3, 4
(Green)
DSL PORT 1, 2, 3, 4
(Green)
Fast Cycling: LED turns off and on in equal duration 5 times per second.
Pulsing: LED turns off momentarily once per second.
February 2001
LED is . . .* Indicating . . .
On Device failure; system processing has
stopped.
Off No power is being delivered to the card.
Slow Cycling Unit is in minimum mode and a download
is required.
Pulsing Normal operation.
On Device failure or the Power-On Self-Test
(POST) has failed.
Off No alarms exist.
On Loopback test or 511 test pattern is
in progress.
Slow cycling POST is in progress.
Off No tests are active.
On Recoverable signal is present on the
DSX-1 interface.
Slow cycling Yellow Alarm Indication (RAI) is present.
Fast cycling An OOF, LOF, EER, or AIS condition
exists.
Off No signal is detected on the interface.
On DSL link is up.
Slow cycling DSL training is in progress.
Fast cycling OOF condition is present.
Off DSL link is down.
8774-A2-GB20-40