Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド
Chapter 1 Introduction
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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
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)
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
corrosive environments; non-chromated housing also available
Input and output reverse pad locations increase flexibility in reverse path design
and alignment
and alignment
Easier split upgrade
Can drop into existing 750 MHz, 870 MHz and 1 GHz network
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)
by moving a jumper)
Input and Output Ports
Input and output ports for the 1.2 GHz GainMaker System Amplifier are configured
for each amplifier type as follows.
for each amplifier type as follows.
High Gain Dual
These amplifiers have one input port and two or three output ports. The number of
output ports is determined by the component installed in the plug-in signal director
position:
output ports is determined by the component installed in the plug-in signal director
position:
Jumper
Two-way splitter
8 dB directional coupler
12 dB directional coupler