Table 5. Fll-814 Led Status - ADC PG-FlexPlus FLL-814 Manual

SCP-FLL814-012-04H
c. All pairs are good and properly wired between the FLL-814 and the FRL-842 or Doubler Unit:
• PWR LED flashes for approximately 12 seconds, then remains on
• SYNC LEDs flash and the FLL-814 attempts to synchronize with the FRL-842 or Doubler Unit. One of
the following occurs:
– FLL-814 does not detect or is not able to synchronize with the FRL-842 or Doubler Unit:
SYNC LEDs flash for approximately one minute, then remain off
FLL-814 waits one minute, then FLL-814 repeats startup sequence
– FLL-814 detects and is able to synchronize with the FRL-842 or Doubler Unit:
Within a few minutes, the SYNC LEDs remain on and the FLL-814 establishes synchronized
HDSL communications with the FRL-842 or Doubler Unit. Assumption: The HDSL margins are
above alarm thresholds and there are no subscriber drop tests or other alarm/faults in the
system. Therefore, verify
establishes HDSL synchronized communications.
It takes approximately two minutes before end-to-end synchronization is established with two doublers
installed in the circuit. However, depending on the condition of the cable plant and length of the spans, it
may take up to four minutes before synchronization is established.
12
Table 5 front panel indications after the system powers up and

Table 5. FLL-814 LED Status

LED
PWR On
LOOP 1 SYNC On
LOOP 1 MARGIN Off
LOOP 2 SYNC On
LOOP 2 MARGIN Off
TEST Off
ALARM Off
FAULT Off
Status
ADC Telecommunications, Inc.
April 22, 2003