Suggestions for Broadband Video on Cat 5 Cable
Because Lynx equipment does not utilize external power, a broadband video
amplifier is usually installed ahead of the Lynx hub to compensate for
cable and insertion losses. In most cases one amplifier will support hubs
serving up to 24 TVs from a given IDF closet. See Amplifier Selection Guide for specific recommendations on selecting the proper amplifier.
To select the proper amplifier it is important to determine the cable
and insertion losses for each run of Cat 5 cable. These losses vary depending
on the length of each run and the frequency (channel number) being delivered.
They can be quantified by referring to the Lynx
System Loss Chart on this website, or using the Lynx Design Model (available upon request by contacting email@example.com).
The design and installation of the Lynx network should always
group the cable runs as a function of distance. For example, if the wiring
closet has three 8 port Lynx hubs, all of the short runs should be routed to
the "short" hub, the medium runs to the "medium" hub,
and the long runs to the "long" hub. The signal strength to
each hub can then be adusted by adding attenuators to the short and medium
runs, if needed.
It is usually a good idea to maximize the slope adjustment on the amplifier
to compensate for the higher losses associated with higher channel numbers.
A more detailed description of amplifier selection and system design
considerations is available by reviewing the
Amplifier Selection Guide.
System design services are also available. Contact Lynx Broadband for further information.