Cisco Multimedia Line Equalizer Rev Conditioner 750 MHz - 42 51 MHz Split Data Sheet
Description
The Multimedia Line Equalizer/Reverse Conditioner (LEQ/RC)
is a by-product of the extensive reverse path studies that
Scientific-Atlanta has been conducting. This analysis has
conclusively determined that, by strategically attenuating the
reverse path signals, systems are able to better support
transmission in this challenging portion of the spectrum.
This reverse path attenuation has several key benefits. First,
it raises the output levels of communicating devices (e.g.,
home communication terminals, cable modems, and cable
telephone NIU’s) to the upper ends of their dynamic ranges,
thereby increasing overall signal-to-noise performance.
Second, by lowering the dynamic range variance, deployment
of new services is simplified. Third, the additional reverse
attenuation minimizes concerns about overdriving optical return
transmitter lasers.
True to its name, the unique LEQ/RC performs two important system design functions:
1. It includes a forward equalizer whose value was chosen to best complement network reverse conditioning.
2. It enables the addition of plug-in attenuators providing appropriate reverse path conditioning.
is a by-product of the extensive reverse path studies that
Scientific-Atlanta has been conducting. This analysis has
conclusively determined that, by strategically attenuating the
reverse path signals, systems are able to better support
transmission in this challenging portion of the spectrum.
This reverse path attenuation has several key benefits. First,
it raises the output levels of communicating devices (e.g.,
home communication terminals, cable modems, and cable
telephone NIU’s) to the upper ends of their dynamic ranges,
thereby increasing overall signal-to-noise performance.
Second, by lowering the dynamic range variance, deployment
of new services is simplified. Third, the additional reverse
attenuation minimizes concerns about overdriving optical return
transmitter lasers.
True to its name, the unique LEQ/RC performs two important system design functions:
1. It includes a forward equalizer whose value was chosen to best complement network reverse conditioning.
2. It enables the addition of plug-in attenuators providing appropriate reverse path conditioning.
Features
• Fixed 8 dB forward equalizer
• Socket for standard Scientific-Atlanta 1 GHz plug-in attenuators
• Connection Beam non-interruptible AC/RF bypass maximizes network availability during maintenance periods
• Equalizer in/out bypass enables reverse conditioning deployment in network locations where forward
equalization is not desired
• Twelve ampere current passing capability enables placement in all portions of the network
• Faceplate contained circuit, compatible with existing Scientific–Atlanta line equalizer products
• Rugged, polymer coated housing provides reliable performance in the most challenging environments
Taps and Passives
Multimedia Line Equalizer/Reverse Conditioner
750 MHz – 42/51 MHz Split
750 MHz – 42/51 MHz Split