Installation
61247004L1-5A
9
Front Panel LEDs
The 3192 HTU-C provides front panel LEDs to display status information. The 3192 HTU-C
LEDs and status descriptions are shown in
.
Table 6. Front Panel LEDs
Label
Status
Description
DSL 1/ DSL 2
{
z
z
z
5
Off
Green
Yellow
Red
Flashing
No sync between the HTU-C and HTU-R on Loop 1/Loop 2
Signal quality is good (4 to 9)
Signal quality is marginal (1 to 3)
Signal quality is poor (0)
Error at HTU-C or HTU-R; Loop signal quality is indicated
by the color of the flashing LED
DSX/ DS1
{
z
5
Off
Green
Flashing
DSX signal is not detected or is of a format that does not
match the provisioning of the HDSL circuit
DSX signal is present and synchronized with the HTU-C
interface
Bipolar violation (BPV), frame bit error (SF mode) or CRC
error (ESF mode) detected on received DSX signal
ALM
{
z
z
Off
Yellow
Red
No alarm conditions exist
Remote alarm condition (HTU-R) detected
Alarm condition detected either locally (HTU-C) or both
locally and remotely (HTU-C and HTU-R)
ESF/ SF
{
z
z
Off
Green
Yellow
Unit is receiving or provisioned for unframed data
Unit is currently receiving SF data, except when provisioned
for unframed data
Unit is currently receiving ESF data, except when provisioned
for unframed data
B8ZS/ AMI
z
z
Green
Yellow
Unit is receiving AMI line code
Unit is receiving B8ZS line code
LBK
{
z
2
Off
Yellow
Yellow Flashing
Unit is not armed or in loopback
Unit is in loopback toward the network.
Loopback arming sequence detected and the unit is armed
(ready for loopback) but not in loopback
