Cisco Cisco Legacy Line Extenders 数据表

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RF Electronics 
Line Extender III GaAs FET 
750MHz with 40/51 MHz Split
 
Scientific-Atlanta 1-800-433-6222
22877
FEATURES
• 60 and 90 V AC powering capability
• GaAs FET gain block technology offers superior distortion performance 
• 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
• Unitized design (amplifier and power supply in a single module) enables 
simplified and faster maintenance
• High efficiency, transformer-less power supply lowers system operating cost
• Directional Coupler RF testpoints provide optimum accuracy
• Surge Resistant
Circuitry ensures protection without fuses or other 
nuisance failure causing device
DESCRIPTION
The Line Extender III (LE III) family
of RF amplifiers provide optimum
performance and reliability for
broadband network applications.  All
LE III amplifier modules offer fifteen
amp current carrying capacity, and
are pre-configured with diplexers
and reverse amplifier for optimum
reverse performance.
The LE III GaAs FET amplifier
module incorporates robust GaAs
FET gain block technology, which
provides significant improvements in
distortion performance. 
LE III can be field configured with a
variety of options to meet specific
requirements.
For applications where output level
control is not required, the interstage
is typically configured with a stand
alone Interstage Equalizer (ISEQ).
For basic output level control in
aerial plant applications, a
combination Thermal Compensator/
ISEQ is available.  
For the most accurate degree of
output level control in both aerial
and underground plant, a
combination AGC/ ISEQ is the
desired option.
The LE III GaAs FET amplifier
module provides one (bridger level)
output.