Cisco 750 MHz In-line Equalizer Data Sheet
Description
The Multimedia Line Equalizer/Reverse Conditioner
(LEQ/RC) is utilized in the coaxial portion of the HFC plant to
perform two important functions.
In the forward path, the fixed forward equalizer offsets
undesirable down-tilt associated with cumulative cable and
passive losses. This allows tap port RF levels to be
maintained within desired design limits even at taps located
near end of lines.
In the reverse path, the use of plug-in attenuation allows RF
levels to be conditioned for optimal performance of critical
reverse path services. By selectively adding reverse
attenuation at LEQ/RC locations, the range of RF levels
transmitted from closed loop customer premise equipment in
a given service area can be narrowed considerably. With
greater percentages of devices such as high speed data and
telephony modems transmitting in the upper end of their RF
transmit range, improvements in carrier-to-ingress and
carrier-to-noise performance can be realized.
(LEQ/RC) is utilized in the coaxial portion of the HFC plant to
perform two important functions.
In the forward path, the fixed forward equalizer offsets
undesirable down-tilt associated with cumulative cable and
passive losses. This allows tap port RF levels to be
maintained within desired design limits even at taps located
near end of lines.
In the reverse path, the use of plug-in attenuation allows RF
levels to be conditioned for optimal performance of critical
reverse path services. By selectively adding reverse
attenuation at LEQ/RC locations, the range of RF levels
transmitted from closed loop customer premise equipment in
a given service area can be narrowed considerably. With
greater percentages of devices such as high speed data and
telephony modems transmitting in the upper end of their RF
transmit range, improvements in carrier-to-ingress and
carrier-to-noise performance can be realized.
Features
• Fixed 9 or 11 dB forward equalizers
• Plug-in attenuator location for reverse path optimization
• Connection Beam non-interruptible AC/RF bypass maximized network availability during maintenance periods
• Equalizer in/out bypass enables reverse conditioning deployment network locations where forward
equalization is not desired
• 15 ampere current passing capability enables placement in all portions of the network
• 6 kV surge protection
• Faceplate contained circuit, compatible with existing Scientific-Atlanta line equalizer products
• Rugged, polymer-coated housing provides reliable performance in the most challenging of environments
Taps & Passives
Multimedia Line Equalizer/Reverse Conditioner
1 GHz – 42/54 MHz Split
1 GHz – 42/54 MHz Split