Cisco Cisco 1 GHz GainMaker Amplifier 安装指南
Chapter 1 Introduction
GainMaker Amplifier Characteristics
GainMaker System Amplifier modules have the following characteristics.
-20 dB test points, located electrically outside of the diplex filter, provide for
testing of forward output signals and reverse input signals without disrupting
normal operation
Backward compatibility with System Amplifier II and System Amplifier III
housing bottoms provide reduced upgrade costs
Housing lids offered with or without external test point
Room for optional status monitoring transponder in housing lid
Direct module plug-in to the housing provides superior amplifier heat sinking
Symmetrical housing and modules provide convenient mounting
-
Reversible amplifier module due to diagonally positioned input and main
output ports, enabling installation of street-side housing lid access
AC circuitry provides 15 A of steady state current capability that is able to
withstand 25 A of peak current (for a maximum of 2 hours)
Surge-resistant circuitry provides improved resistance to high voltage transients
Chromated housing protects outdoor equipment in coastal areas and other
corrosive environments; non-chromated housing also available
Input and output reverse pad locations increase flexibility in reverse path design
and alignment
This amplifier can also be set up to operate at 870 MHz by using 870 MHz equalizers.
The 870 MHz equalizers are listed together with the 1 GHz equalizers in Accessories
(on page 7).
Power Supply
The DC power supply has the following features.
Located in housing lid for ease of maintenance
AC and DC test points provided on the power supply
Selectable AC undervoltage lockout feature
-
The 30 volt lockout is for 60 volt systems (factory default)
-
The 40 and 50 volt lockout positions are for 90 volt systems (field configurable
by moving a jumper)
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