4. Monitoring the Unit
4-14
February 2001
8784-A2-GB20-30
Front Panel LEDs
The following table describes the meaning and states of the LEDs on the
faceplate.
Type
LED
LED is . . .*
Indicating . . .
SYSTEM
OK
(Green)
On
Off
Slow Cycling
Pulsing
Device failure; system processing has
stopped.
No power is being delivered to the card.
Unit is in minimum mode and a download
is required.
Normal operation.
Alrm
(Amber)
On
Off
Device failure, or the Power-On Self-Test
(POST) has failed.
No alarms exist.
Test
(Amber)
On
Slow cycling
Off
Loopback test or 511 test pattern is
in progress.
POST is in progress.
No tests are active.
DSX-1 1,
2
(Green)
On
Slow cycling
Fast cycling
Off
Recoverable signal is present on the
DSX-1 interface.
Yellow Alarm Indication (RAI) is present.
An OOF, LOF, EER, or AIS condition
exists.
No signal is detected on the interface.
DSL PORT
1, 2
(Green)
On
Slow cycling
Fast cycling
Off
DSL link is up.
DSL training is in progress.
OOF condition exists.
DSL link is down.
* Slow Cycling: LED turns off and on in equal duration once per second.
Fast Cycling: LED turns off and on in equal duration 5 times per second.
Pulsing: LED turns off momentarily once per second.
TDM
SDSL
8784
SYSTEM
O
K
A
lrm
Te
st
1
2
1
2
DSX-1
DSL
POR
T
00-16144a-01
Содержание Hotwire 8784
Страница 24: ...2 Using the Asynchronous Terminal Interface 2 10 February 2001 8784 A2 GB20 30...
Страница 62: ...5 Testing 5 12 February 2001 8784 A2 GB20 30...
Страница 68: ...6 Messages and Troubleshooting 6 6 February 2001 8784 A2 GB20 30...
Страница 98: ...C Connector Pin Assignments C 2 February 2001 8784 A2 GB20 30...
Страница 100: ...D Technical Specifications D 2 February 2001 8784 A2 GB20 30...
Страница 110: ...Index IN 6 February 2001 8784 A2 GB20 30...