Recent content by jpmargis

Simple temperature sensitive switches - no power, no reset.

From the installation instructions ... This is also what is shown in your photo. The panel +/- connections are zone connections.

I2C will work reliably at 1 meter and 100 Kbaud. The distance increases as the speed decreases; i.e., 10 meters at 10 Kbaud.

Did you really mean 820 ohms?

Okay, sounds like a simple mag lock.  So wire a relay per post #7 except with the NC contacts in series with the switch.

Fantastic!  Do you know how the lock gets activated?  Simple switch or electronic control?  If electronic, some details on the make and model would be helpful.   If it's a simple switch, you just need a 12 volt relay controlled by an Omnipro output.  The contacts of the relay would be wired in...

I'm not entirely sure what you are looking for.       a) sense whether or not the doors are open  b') sense whether or not the lock has been activated c) activate the lock d) all of the above

Just add a suitable relay in parallel with the door lock.  The contacts of the relay then become just like window contacts.  Set up the Omnipro accordingly.

Go here: http://cocoontech.com/forums/index.php?app=members&module=messaging   The button is in the bottom left.

As you add cameras, just add more POE injectors.  What's the problem?

A transistor will work to add an open collector output to an Arduino.  The open collector can then be connected to the Elk input.

You are missing a termination.  It could be an actual terminator, a broken wire, or a bad connection.

So I'm left wondering how the 0 dB measurement was made.  Would this happen to be the "bars" indicator on the Elk C1M1?  If so, -85 dB should be good enough for at least 1 bar with the antenna directly connected.  You might just have a bad Elk C1M1 or maybe you have the Verizon version?

  For future reference, -85 dB is a weak signal.  0 dB (if that is an actual measured value) is a very strong signal.  You should make sure that the antenna has a solid connection.