5
8786-A2-GZ40-20
February 2001
Front Panel LEDs
The following table describes the meaning and states of the LEDs on the
Hotwire 8786 TDM SDSL Termination Unit’s faceplate.
Type
LED
LED is . . .*
Indicating . . .
SYSTEM
OK
(Green)
On
Off
Slow Cycling
Pulsing
Unit failure; system processing has stopped.
No power to card.
Unit is in minimum mode and a download is
required.
Normal operation.
Alrm
(Amber)
On
Off
Unit failure, or Power-On Self-Test (POST) has
failed.
No alarms.
Test
(Amber)
On
Slow cycling
Off
Loopback test or 511 test pattern in progress.
POST in progress.
No tests.
G.703
1, 2
(Green)
On
Slow cycling
Fast cycling
Off
Recoverable signal present on the G.703
network.
Remote Alarm Indication (RAI) present.
An OOF, LOF, EER, or AIS condition exists.
No signal on the port.
DSL PORT
1, 2
(Green)
On
Slow cycling
Fast cycling
Off
DSL link is up.
DSL training in progress.
OOF condition.
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
8786
S
Y
STE
M
OK
Alrm
Test
1
2
1
2
G
.703
D
SL
P
O
R
T
00-16136-01