Re: Splitting a CCTV signal to two monitors

["Frank Olson" <feolson@xxxxxxxxxx>]

"Robert L. Bass" <robertlbass@xxxxxxxxxxx> wrote in message
news:neudnUVN4YKj9OTfRVn-gQ@xxxxxxxxxxxxxx
>> Yes, it's possible to split it that way although you will lose some of
>> the strength of the video signal because both devices are terminated
>> with a 75 ohm resistor.
>
> Most professional video monitors have selectable termination to switch the
> 75-Ohm in or out as needed.  Most pro grade units have a feed through
> connection to allow viewing while passing the signal on to either another
> monitor or a recording device.

It's called a "looping output".  On most DVR's or multiplexers the "looping
output" is used to go to another device such as a monitor which remains
*fixed* on the one camera.  You could loop all the inputs on some
multiplexers to go to a second remote multiplexer at a guard shack for
instance.  The looping output on a monitor will only allow you to "see" what
the first monitor does without any control over the camera input (if the
second monitor's remote from the multiplexer).  On a single camera system
that wouldn't be a problem, but when you have more than two cameras you may
want to exercise more "control" over what you see on the second monitor.