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Product Overview
LINE
(A)
UNIT
Loop 2
SPAN 1
Loop 1
LINE
(B)
UNIT
Loop 2
SPAN 1
Loop 1
LINE
(C)
UNIT
Loop 2
SPAN 1
(A) System with no doublers
(B) System with one doubler
(C) System with two doublers
The HRE-450 List 4A is not designed to house locally-powered remote units. Therefore, in a
two-doubler system (C above), the remote unit cannot be installed in an HRE-450 List 4A.
HRE-450 L
IST
•
Easily mounted on a wall or pole using supplied screws.
•
Front cover opens easily, which enables quick inspection or service of enclosed unit.
•
Uses weather-sealing cable fittings that protect connections and provide cable strain relief .
•
Protects remote or line unit against adverse weather conditions and harmful contaminants.
•
Uses Quiet-Front Connector Modules (QFCMs) to provide electrical surge protection and corrosion-resistant
wire.
•
Complies with European CE Standards.
2
REMOTE
UNIT
HRE-450
DOUBLER
HRE-450
DOUBLER
1
HRE-450
Figure 1. HRE-450 List 4A Configurations
4A F
EATURES
August 18, 1998
Loop 1
REMOTE
Loop 2
UNIT
SPAN 2
HRE-450
Loop 1
DOUBLER
Loop 2
2
SPAN 2
HRE-450
150-450-141-02, Issue 2
48 V
Loop 1
REMOTE
UNIT
Loop 2
SPAN 3
HRE-450 List 4A
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