Norstar Compact 616 DR5, Руководство по установке

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2 Preparation
.--Equipment for mounting the modules
screwdriver, diagonal cutters, pliers, connecting tool, pencil,
level (optional)
three 0) wood screws, (1 long
thick wooden backboard (if necessary)
Internal wiring requirements
new or existing wiring must meet the following specifications:
one twisted pair per telephone
a dc loop resistance less than 59
cable length (0.5 mm or 24 AWG) not to exceed 305 m
(1000 ft)
of a Auxiliary Power Supply (SAPS) to extend
the loop up to 790 m if the cable is longer than 305 m
(1000 ft)
no bridge taps
Electrical requirements
Non-switched outlet
ac outlet located not more than 1.5 m (4.9 from the Key
Service Unit (KSU).
For 11 OV product: dedicated 11 O-V ac nominal,
15-A minimum service with third wire ground
For 220V product: dedicated to 240-V ac nominal,
15-A minimum service with third wire ground
WARNING
The ac must be equipped with a third wire ground
to avoid electromagnetic interference.
as an OPX
can be used as
an
off premise extension (OPX) from
a
PBX. In order
to support this applicaiton, the OPX lines must be
engineered not to exceed 7 total loop loss from the serving
central to the demarcation point at the KSU.
Compact Installer Guide