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SCP-PRL771-012-05H
I
NSTALLATION AND
R
T
EQUIRED
OOLS AND
The tools and test equipment required for the RLU are:
•
One Telephone test set
•
One 1/4-inch flat-head screwdriver
•
One #1 Phillips screwdriver
•
One insulated-handle 3/8-inch nut driver
•
One 5/32-inch hex key, drilled for tamper-proof fasteners
•
One insulated-handle wire stripper
•
One insulated-handle needlenose pliers
•
One insulated-handle wire cutter
I
RLU
NSTALLING THE
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, use only power supplies listed with telephone equipment by a locally
recognized organization.
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. Use caution when installing an HDSL
pair that is already connected to a COLU, because dangerous voltages are present on the HDSL pair. The
COLU, unless previously disabled by means of craft provisioning, periodically attempts to power up the
RLU by applying + 100 V dc with respect to ground 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
three seconds after removal of the short.
PG-Plus PRL-771
T
EST
T
E
EST
QUIPMENT
January 6, 2003
PRL-771 Overview
3
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