Cisco LE III Type 3 with 55 70 MHz Split (Linear Tilt) 数据表

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

• 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

• Directional Coupler RF testpoints provide optimum accuracy

• Surge Resistant

™

Circuitry ensuring hybrid protection without fuses or other 

nuisance failure causing devices

The Line Extender III (LEIII) family
of RF amplifiers provide optimum
performance and reliability for
broadband network applications. All
LEIII amplifier modules offer 15 amp
current carrying capacity, and are
preconfigured with diplexers and
reverse amplifier for optimum
reverse performance.

The Type 3 versions of LEIII amplifier
module are additionally precon-
figured with interstage equalizer,
interstage pad, and either AGC for a
3A or Thermal for a 3T, in order to
achieve optimum station perfor-
mance and simplify set up. 

Additionally, maximum flexibility in
reverse signal path alignment is

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).

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.

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