Section 363-772-100
Revision 01
Page 8
C. INSTALLATION AND TEST
9. UNPACKING
9.01
Upon receipt of the equipment, proceed as
follows:
1. Unpack each container and visually inspect it
for signs of damage. If the equipment has
been damaged in transit, immediately report
the extent of damage to the transportation
company and to PairGain. Order replacement
equipment if necessary.
2. Check the contents versus the packing list to
ensure complete and accurate shipment. If
the shipment is short or irregular, contact
PairGain as described in Section 5. If you
must store the equipment for a prolonged
period, store the equipment in its original
container.
10. TURN-UP AND TESTING
10.01
Table 2 provides step-by-step turn-up and test
procedures for the FRL-772 RT Line Unit.
11. TROUBLESHOOTING
11.01
Table 3 provides troubleshooting procedures
based on indications displayed by the front
panel indicators of FRL-772 RT Line Units. Table 4
contains a glossary of PG-Flex terms.
TABLE 2. FRL-772 RT LINE UNIT TURN-UP AND TESTING
CAUTION
Observe normal electrostatic discharge precautions when handling electronic equipment. Do not hold
electronic plug-ins by their edges. Take care not to touch components or circuitry.
Step
Operation
Action
Observe
1
Install RT
Line Unit
a. Insert the FRL-772
RT Line Unit into the
RT Enclosure.
•
All LEDs on the RT Line Card turn
on for approximately 7
seconds, then scan from top to bottom.
•
The PWR LED remains
on.
b. At both the COT and
RT Line Unit, observe
the front panel
indicators.
•
After approximately 30 seconds, the SYNC LEDs for Line 1
and Line 2 begin to
flash.
•
Within 35 seconds, the SYNC LEDs for Line 1 and Line 2 turn
on.
c. After the system has
powered up,
established HDSL
synchronized
communications, and
no calls are in
progress, observe the
RT Line Unit front
panel indicators.
POWER
on
LOOP 1 SYNC
on
LOOP 1 MARGIN
off
LOOP 2 SYNC
on
LOOP 2 MARGIN
off
FAULT
off
TEST
off
ACO
off
2
Measure
Voltages
a. Make the following
measurement on the
RT Enclosure
backplane:
130 Vdc to 250 Vdc between A_HDSL_T and B_HDSL_T
b. Make the following
measurements on the
COT Shelf
backplane:
•
-130 Vdc, ±10%, between A_HDSL_T1 and Chassis Ground
•
0 Vdc to +120 Vdc between A_HDSL_T2 and Chassis
Ground
(Note: Use B_HDSL_T1 and
B_HDSL_T2 for System #2)
