Utu And Etu Front Panel Led Indications - ADC WorldDSL UTU-701C Quick Installation Manual

Overview
LED
HDSL SYNC LED
HDSL ALM LED
I/F ALM LED
For information on loopback testing and loopback LED
indications, see the WorldDSL RS user guide, document
number 700-701-100-xx. This document can be downloaded
from the ADC website at www.adc.com. To order a hard copy,
please contact your sales representative.
6

UTU and ETU Front Panel LED Indications

Mode
Steady green
Slow flashing
Off
Steady red
Pulsing red
Off
Steady red
June 5, 2002
700-701-900-02, Revision 02
Description
HDSL loop is ready to transmit and
receive data across all spans.
HDSL loop acquisition is in progress for
local span.
HDSL loop is not configured.
Loss of sync word (LOSW); or the margin
is below the set margin alarm threshold;
or Errored Seconds (ES) count is above
threshold on any span.
Pulses for every ES on any span.
Normal transmit or receive data is in
progress.
Loss of Signal (LOS) alarm due to loss of
G.703 signal or Loss of Clock (LOC) alarm
due to loss of external clock (when using
EXT timing).
UTU-701C and ETU-751C List 1