950-770-100
March 14, 1997
Revision 01
PG-Plus PRL-770
PairGain Engineering-Plant Series
Page 5
B. INSTALLATION AND TEST
3. Required Tools and Test Equipment
3.1
To install or test a PRL-770 List 1A, the following tools are required:
One Telephone test set
One #2 Flat-head screwdriver
One 3/8 inch nut driver
One 5/32 inch hex key, drilled for tamper-proof fasteners
4. Inspecting Your Shipment
4.1
Upon receipt of the equipment:
•
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.
•
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 the section entitled "Warranty."
If you must store the equipment for a prolonged period, store the equipment in its original
container inside a building or under cover.
5. Installation
5.1
Safety Precautions.
To ensure the safety of personnel and equipment, carefully observe the
following safety rules:
Be careful when installing or modifying telephone lines. Dangerous voltages
can be present. It is unsafe to install telephone wiring during a lightning storm.
Always disconnect all telephone lines and power connections before servicing
or disassembling this equipment.
For performance and safety reasons, only power supplies listed for use with
telephone equipment by a locally recognized organization should be used with
PairGain equipment.
All wiring external to the product should follow the local wiring codes.
Always treat the HDSL pair as if it were live with high voltage present. When
installing an HDSL pair which is already connected to a COLU, caution must be
used as dangerous voltages are present on the HDSL pair. The COLU, unless
previously disabled via craft provisioning, periodically attempts to power up the
PRL-770 by ap 100 V dc to the HDSL pair. The COLU also initiates a
start-up after a momentary short has been applied to the HDSL pair. The COLU
responds with start-up voltage immediately upon removal of the short.
Summary of Contents for PRL-770
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