LTPH-UM-1234-01
P
RODUCT
The open-framed cover reduces thermal stress and improves reliability,
allowing air to freely circulate over all components. The open cover also
permits the doubler to be easily distinguished from the 239 T1 repeater.
Figure 1 on page 3
Table 1 on page 4
Configuration
(located on top)
CLEI/ECI bar
HDU-409 Lists 1, 2, and 3
D
ESCRIPTION
shows the front panel of the HDU-409 and
describes the doubler unit components and labels.
number label
code label
Figure 1. HDU-409 Front Panel
April 30, 2003
HiGain
DOUBLER
HDU-409
L
STATUS
H0078-A
Product Description
List number
Status LED
Extraction
handle
3
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