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What is a router – Grass Valley CRSC v.3.2 User Manual

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Tutorials

Routing Overview

What is a Router?

Suppose you have two VCRs and one TV. You want to be able to view a movie from either VCR.
So you plug the cable from one VCR into the TV. When you want to use the other VCR, you
switch cables. After a while, that gets a little tiresome. Wouldn’t it be easier if you had a switch
you could flip?

Now suppose you have a dozen TVs and a dozen VCRs plus cable service. You want to be able to
direct any program from any VCR or from the cable company to any of the TVs. But how? That is
what routers do: direct the content from a number of inputs to selected outputs.

A router is a box (containing electronics) that has a number of input connectors and a number
of output connectors. Inside the box are switches that “listen” to a control panel. Pressing
buttons on the control panel causes one of the switches to connect one of the inputs to one of
the outputs, for example, input 3 to output 12.

You can connect your VCRs to the box’s inputs, and your TVs to its outputs, punch a few buttons
on its control panel, and everyone can view their programs.

If you have DVD players, it is slightly more complicated: there are several signals for each DVD
and you will need a router for each of the different signal types. Further, you might need
converters if your TVs are older models that cannot receive DVD input.

CR Series routers and control panels allow you to control and route signals to and from your
professional-grade equipment.

CR Series routers and control panels do not start, stop, rewind, cue, or fast-forward any device.
CR Series routers do not perform signal conversion.

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VCR

Cable

Router

VCR

VCR

VCR

VCR

TV

TV

TV

TV

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Controls

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