Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド

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). 

 

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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