150-419-100-03>
Installation
HRU-419 List 1
September 25, 1998
11
T
HREE
-S
PAN
L
INE
P
OWERING
The HRU-419 can be used with the following line units and doublers for
three-span line powering applications:
•
Line units: HLU-231 List 7D and 7B. HLU-431 List 1D
•
Doublers: HDU-437 List 1, HDU-439 List 1
For further information see the HiGain Mini Doublers, Model HDU-437 and
HDU-439, technical practice.
I
NSTALLATION
This section provides information on inspection and installation of the
HRU-419.
I
NSPECTING
Y
OUR
S
HIPMENT
When you receive the equipment, 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 ADC.
Your shipment should consist of:
•
One HRU-419 List 1
•
This document
Three-span line powered circuits must have no more than
2000
Ω
of total loop resistance.
