Cisco Cisco Legacy System Amplifiers 数据表

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

22711

• 60 and 90 V AC powering capability

• 15 ampere current capacity (steady state) and 25 ampere surge survivability

• Integrated reverse amplifier, with optimized diplex filter group delay for 

forward and reverse paths

• Reverse input test point and input pad allowing optimum reverse path 

alignment

• Improved station frequency response

• Unitized design (amplifier and power supply in a single module) enabling 

simplified and faster maintenance

• High efficiency, transformerless power supply lowering system operating cost

• RF testpoints using directional couplers for optimum accuracy

• Surge Resistant

™

Circuitry ensuring hybrid protection without fuses or other 

nuisance failure causing devices

The Type 3 RF amplifier module
offers a high performance design
solution for the latest HFC networks. 

The amplifier module comes pre-
configured with interstage equalizer,
diplexers, reverse amplifier, and
either AGC for a 3A, Thermal for a
3T, or jumper for a 3M module, in
order to achieve optimum station
performance. Additionally,
maximum flexibility in reverse signal
path alignment is achieved via the
reverse test point and plug-in pad for
the reverse input.

The Type 3 amplifier module pro-
vides one (bridger level) output.

NOTE: The output tilt referenced in this document is defined as a LINEAR output tilt (as opposed to a CABLE output tilt). The distortion
and noise figure specifications are applicable across the full operational temperature range (as opposed to being referenced to 68

°

F).  

When calculating end of line performance, the specifications used for all of the amplifiers in a given cascade must be of similar format,
due to the fact that all amplifiers in a cascade must operate with a similar output tilt (either all LINEAR output tilt or all CABLE output tilt).