Re: multiple PTZ on dvr?

[Chuck <cteller@xxxxxxxxxxxx>]

Bob La Londe wrote:

>
> I think you just assign an address to each camera.  Look over your docs.
>   I do Pelco PTZ over RS422 on Dedicated Micros DVRs that way regularly.
>   Each one has a unique address.  Alternatively, if they support control
> over coax (coaxitron) then whatever camera is selected receives the
> control signals.
>
> Contact Pelco if you are stuck on their equipment and ask them.





The manual shows a single connection to a single PTZ camera.  The protocols
do talk about addressing as you mentioned so I can understand the
communication scheme.

Unfortunately, there is only the single set of pins D+ and D- to address all
cameras.  In all fairness, Speco included a DA-15, D-sub solder-type
connector to mate with the rear connector on the DVR.  Unfortunately, they
did not include a breakout box or cable.  It's a bit primitive.  I'll call
them to clarify later.

Overall, I think I would be better served to find a ptz controller that was
a little more refined and just use the dvr for display and record.  If you
could recommend any gear, I'd sure appreciate it.  I sure wish I could have
seen this coming -- it's a real good argument for using a pro......