Section 363-742-102
Revision 01
Page 10
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-742 RT Line Unit.
11. TROUBLESHOOTING
11.01
Table 3 provides troubleshooting procedures based
on indications displayed by the front panel indicators of FRL-
742 RT Line Units. Table 4 contains a glossary of PG-Flex
terms.
TABLE 2. FRL-742 RT LINE UNIT TURN-UP AND TESTING
CAUTION
Observe normal electrostatic discharge precautions when handling electronic equipment. Do not hold electronic
plugs by their connector edges. Do not touch components or circuitry.
Step
Operation
Action
Observe
1
Install RT
Line Unit
a. Insert the FRL-742 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 HDSL_T and HDSL_T
b. Make the following
measurements on the
COT Shelf backplane:
•
-130 Vdc, ±10%, between HDSL_T1 and Chassis Ground
•
0 Vdc to +120 Vdc between HDSL_T2 and Chassis Ground
