Conecting i/o ports in dvr card?

[Isaac]

Hi Im seeking for some help about what can a dvr card I/O relay ports can do.

I have several dvr card por video surveillance, cctv cameras, ip cameras, etc.
IM building pc based dvr systems for pc surveillance but I have several cards that have I/O ports but I dont know how exactly this port work.

I have the software to control them and I know that they are low voltage relays,

What do I do with this ports, what can I connect and control with this ports can someone please help me.

If anyone have some tutorials or diagrams what can I control with I/o ports and dry contacts ports

I know that I can control alarms, lights, but I dont know how to conect them exactly thanks for your help.

I know that this ports are used to triger an action for example if motion is detected turn on a light or something like that.

I apreciate your hellp

 

[electron]

Hi Isaac, do you have a model # (sounds like a great card)? In order to control i.e. a siren, I would hook that output up to another Relay, rated to handle that siren, and you should be good to go.

 

[Isaac]

ill check you on the model number, but most dvr cards have relays and dry contacts output, can you please tell me how would be the conection.

I understand that I have to plug the siren to the i/o port but can you explain me more how is the setup of that, what did you mean you conect the relay to another relay to control the siren.

 

[electron]

I think the first thing we have to do is look up your card and see how much voltage/amp those onboard relays can support.

 

[Isaac]

this card supports 5v in the relays

 

[electron]

what about amperage? If you can find a device to hook up which is within the limits, then it should be really easy to hook up. The manual should have the diagrams.