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Front Panel LEDs
The following table describes the meaning and states of the LEDs on the
Hotwire 8775 or 8785 TDM SDSL Termination Unit's faceplate.
Type
SYSTEM OK
SYNC
PORT
DSL
PORT
LINK-UP
* Slow Cycling:
Fast Cycling:
Pulsing:
TDM
SDSL
8775
00-15834-03
LED
LED is . . .* Indicating . . .
On
(Green)
Off
Slow Cycling
Pulsing
Alrm
On
(Amber)
Off
Test
On
(Amber)
Slow cycling
Off
1, 2, 3, 4
On
(Green)
Off
1, 2, 3, 4
On
(Green)
Slow cycling
Fast cycling
Off
LED turns off and on in equal duration once
per second.
LED turns off and on in equal duration 5 times
per second.
LED turns off momentarily once per second.
Unit failure; system processing has
stopped.
No power to card.
Unit is in minimum mode and a
download is required.
Normal operation.
Unit failure, or Power-On Self-Test
(POST) has failed.
No alarms.
Loopback test or 511 test pattern in
progress.
POST in progress.
No tests.
The port is operational.
No signal on the port, or DTR or
RTS is off.
DSL link is up.
DSL training in progress.
OOF condition.
DSL link is down.
8
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