Cisco LE III Type 4 with 40 52 MHz Split (Linear Tilt) 数据表
RF Electronics
Line Extender III
Type 3
750 MHz with 40/52 MHz Split
Type 3
750 MHz with 40/52 MHz Split
Scientific-Atlanta 1-800-433-6222
22711
FEATURES
• 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
DESCRIPTION
The Type 3 RF amplifier module
offers a high performance design
solution for the latest HFC networks.
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.
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.
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
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).
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).