Cisco Compact Broadband Amplifier 93218 and 93228 数据表

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RF Electronics     
Compact EGC Amplifier Model 93251 
 
 
 
 
Description 
 
The Compact Electronic Gain Control (EGC) Amplifier Model 
93251 combines powerful performance with ease of use to 
meet the growing demands from operators for advanced 
products. It provides advanced features and benefits to help 
operators reduce operating costs by streamlining amplifier 
deployment and configuration and is especially well suited for 
network upgrades due to increased reverse gain. 
 
The amplifier performs to 1 GHz in the forward path and can 
be configured electronically, using a handheld programmer 
terminal, for rapid initial set-up or for adjustments that arise as 
network requirements shift. All settings are done without 
interrupting service, an especially important capability in 
networks which are delivering Voice over IP (VoIP) services. 
Settings for the EGC amplifier can be established or modified using a handheld programmer terminal. Settings 
from one amplifier can be uploaded to the handheld programmer terminal for downloading to other amplifiers 
in order to streamline their configuration. Different forward gain settings can be obtained in the amplifier, 
enabling it to support several different applications within the network allowing a single amplifier model to help 
reduce inventory and lower costs. 
 
 
 
The number of amplifier plug-ins is reduced to a minimum to help operators keep inventory and costs down. 
The full range electronic attenuators and equalizers offer improved versatility and make it possible to achieve 
the same adjustment range as with conventional plug-in or potentiometer solutions. Plug-in diplex filters are 
used to determine the forward/reverse band split. 
 
To meet future demands for more bandwidth, the amplifier offers an electronic 862 MHz to 1 GHz field-
programmable bandwidth extension, as well as a reverse path that can be upgraded to 200 MHz.  
 
 
The Compact EGC Amplifier Model 93251 can be configured with a Scientific Atlanta status monitoring 
transponder (SMC or HMS) to enable remote monitoring of critical amplifier parameters and remote control of 
the built-in 3-state reverse switch. All amplifier settings are remotely addressable via the ROSA™ Element 
Management System to help reduce truck rolls and associated costs.  
 
 
 
 
Features 
• 
GaAsFET gain block technology for improved distortion and noise performance 
• 
8 power passing 
• 
Improved output level and flatness  
• 
6 kV surge protection 
• 
Plug-in, self-contained diplex filters for easy upgrade of reverse path bandwidth  
• 
Easy plug-in mounting of transponder (no change of lid nor use of test points for cable connection)  
• 
Optional status monitoring and control 
• 
Integrated 3-state reverse switch (on/-6 dB/off) allows the reverse input to be isolated for noise and 
ingress troubleshooting 
• 
Compact HMS transponder supported