Initialization Sequence; Subscriber Drop Tests; Subscriber Drop Test Components - ADC PG-FLEXPLUS PLL-735 Manual

SCP-PLL735-010-03H
I
NITIALIZATION
After installing the DICOLU, the following events occur:
•
All LEDs briefly blink on and then off, with the exception of the PWR LED that remains Flashing.
•
After about 5 seconds, the DICOLU applies power and goes into start-up mode. If an RT is present and no
PGFs or PFOs are detected, the PWR LED is on green. If line 1 is off-hook, the HDSL power is not applied
until it goes on-hook for at least 3 seconds. There is a 5-second delay before turning on the HDSL power.
• After applying the HDSL power, the tests for overload or underload conditions are performed. If the HDSL
line power is normal, the PWR LED is on and HDSL start-up is initiated.
• As the DICOLU continues with the start-up, the SYNC LED flashes indicating the HDSL line is attempting
to acquire synchronization. When complete, the SYNC LED is on. It takes approximately 2 to 3 minutes from
the system power-up until synchronization is achieved. The DICOLU attempts to synchronize every 5
minutes until synchronization is achieved.
• MARGIN LED is on yellow indicating the DICOLU signal-to-noise ratio is equal to, or below, the selected
signal-to-noise ratio threshold on the DICOLU. The MARGIN LED Flashes if the signal-to-noise ratio of the
HDSL line is equal to, or below, the selected signal-to-noise ratio threshold on the RT.
S D
UBSCRIBER ROP
Select the Subscriber Drop Test (SDT) feature from the Test submenu. Relays on the RT provide a path for
performing an SDT. Tests performed are detailed in
Unit Types
POTS and ISDN
POTS and ISDN
POTS and ISDN
ISDN only
POTS only
POTS only
PLL-735 Lists 1, 2 and 3
S
EQUENCE
T
ESTS
Table 4.

Subscriber Drop Test Components

Component
Hazardous Potential T-G or R-G > 50 Vrms
T-G or R-G > 135 Vdc
Foreign Voltage T-G or R-G AC volt. > 10 Vrms
T-G or R-G DC volt. > 6 Vdc
Resistive Fault T-G, R-G, or T-R resistance, 150 KW
Network Termination No change in T-R DC resistance with a
change in applied test voltage.
Receiver Off-hook Phone is off-hook
Ringers Test Ringer load across T-R > 5 REN
Ringer load across T-R < 0.1 REN
January 6, 2003
Table 4, "Subscriber Drop Test Components," on page
Failure Condition
9.
Status Values
Passed
Failed
Passed
Failed
Passed
Failed
Passed
Failed
Passed
Failed
Passed
Failed
9