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Posted by Jeff Z on January 28, 2006, 3:37 pm, in reply to "Doorphone card on 848?" Note that you only have 4 relays on that card, so if you need four door openers, you have no relays left to define as just relays, but you could certainly connect all kinds of things to the DPH relays. I have connected things, like strobe lights, flood lights and even sirens to similar relay panels in the phone systems to notify a staff of various types of calls coming in. Most of these devices need slave relays to hang off the internal DPH relays, but they are very easy to install and it amazes people when incoming calls trigger flood lights and sirens. If you have some specific devices that you would like to interface, I would be happy to assist you in figuring out how do make it happen. JZ
Depending on if your gate opener is actually using AC or DC and the current that is passing through the existing pushbutton, you should be able to use the DPH card for that gate. If it is actually AC, I would use a secondary relay slaved off the DPH relay. If it is low voltage and current DC (say 5 to 12 V @ .25 Amps) you can easily connect it directly to the DPH relay.
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