6
March
2003
8700-A2-GN10-40
Front Panel LEDs
The following table describes the meaning and states of the LEDs on the
Hotwire 8777 or 8779 TDM SDSL Termination Unit’s front panel. PORTS LEDs
represent the DTE or DSL ports depending on the Port LEDs selection on the
Control screen.
NOTE:
Use the
Main Menu
→
Control
→
Port LEDs
branch of the Asynchronous
Terminal Interface to change the definition of the DSX-1 or G.703 LEDs to
DSL PORT and vice versa.
Type
LED
LED is . . .* Indicating . . .
SYSTEM
OK
(Green)
On
Off
Slow cycling
Normal operation; card functioning normally.
No power to card, or card failure.
Unit is in minimum mode and a download is
required.
Alrm
(Amber)
On
Off
Device failure, Power-On Self-Test (POST) is not
complete, or an alarm was reported on a DSL,
DSX-1, or G.703 port.
No alarms.
Test
(Amber)
On
Off
Slow cycling
Loopback test or 511 test pattern in progress.
No tests.
POST in progress.
PORTS
(when
DSX-1
or
G.703
selected)
1–8
(Green)
On
Off
Slow cycling
Fast cycling
Recoverable signal present on the DSX-1 or G.703
network.
No signal on the port.
Yellow Alarm Indication (DSX-1) or Remote Alarm
Indication (G.703).
An OOF, LOF, EER, or AIS condition exists.
PORTS
(when
DSL
selected)
1–8
(Green)
On
Off
Slow cycling
Fast cycling
DSL link is up.
DSL link is down.
DSL training in progress.
OOF condition.
* 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.
TDM
SDSL
8777
00-16604-01
SYSTEM
OK
Alrm
Test
5
6
7
8
POR
TS
1
2
3
4
