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Author Topic: Greatly Simplified DS7000 Relay Driver Mod  (Read 10511 times)

WildBill47

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Greatly Simplified DS7000 Relay Driver Mod
« on: June 09, 2009, 12:46:27 AM »

For all practical purposes this is the same thing as in my prior posts, it is a mod that connects to the DS-7000 ARM LED, +5VDC, and Ground. As with the other design it can be hooked to any LED and it's operation is the same, LED comes on and one relay momentarily closes for 1/4 of a second, the same LED goes off, and a second relay closes for 1/4 Second.

I used it to tie to a KR19A remote and it turns on my camera and recording system when I arm the DS-7000 but it could be used to trigger anything you want from any Zone LED 1-8 or any other LED, like Low Batt or as I did Armed.

It is designed to close a normally closed relay as I noted for 1/4 second, from the Schematic it is easy to see what part you need to change the value of to make that time short or a LOT longer and with the use is a latching relay instead of what I used it would toggle the two relays on and off as long as the LED stays on or off.

The main difference in this case is the number or parts is reduced by over 50%, in fact so few parts, 1 IC, 3 Transistors, 3 diodes, 4 resistors, 2 caps, 2 relays that you do not even need a PCB board just wire the parts to a perf board. As with the original design, if a LED is flashing it ignores it and considers it to still be on, so that issue is still clean.

The other difference is it is very tolerant to varied conditions, it fits totally in the DS-7000 easily the other one was a real squeeze, and it take only 20% of the power to run as the old one, not that it mattered much. It will work in both older DS-7000's and the latest ones.

That said it is still complex for those you don't solder, it is not electronically complex since it is already designed and the only thing you might change is the load the relay can take by changing the relay to any 5VDC relay so from very low voltage/amp loads to what I have found in the same form factor up to 250VAC@30Amps, after that you need to wire bigger relays to the PCB.

Here are a series of pictures of the new board, the trace side (which can be hand wired without a PCB), the component side, the schematic, the board wired to a X-10 CR19A remote and DS-7000, I will follow this later with pictures if it mounted in a DS-7000, alas, the only one I have is aready wired in and I failed to remember to take pictures as I was doing it, but it works perfectly.

As X-10 Mods go this would fall under "complex" since it does require that you solder, it requires 0 electronic knowledge as that is all taken care of.

As before, if there is interest I will develop step by step instructions on assembly, until then since that takes a lot of work the instructions in the prior post for those more advanced is more than enough to build and install this. The cost of this most is now under 10 bucks. Enjoy...

1. Block Diagram of the project:
http://people.delphiforums.com/wildbill47/X10/Full_System.jpg

2. Sequence Timing Diagram:
http://people.delphiforums.com/wildbill47/X10/Timing.jpg

3. Design Schematic:
http://people.delphiforums.com/wildbill47/X10/Alarm_Rly.png

(Note: After hitting this link you may need to go to the URL Line and
hit enter against the same address to get it to show up, not sure why,
but it does come up then.

4. The Trace Side of the PCB:
http://people.delphiforums.com/wildbill47/X10/As_Built_Bot.JPG

(Note: there are so few parts, this can easily be hand wired on a perf board, not real PCB is needed)

5. The Component Side of a home made PCB, with all parts but the relays:
http://people.delphiforums.com/wildbill47/X10/As_Built_Top.JPG

6 The Relay Contral PCB Wired to the X-10 Remote Control PCB:
http://people.delphiforums.com/wildbill47/X10/As_Built_Rly-Cr19a.JPG

(Note: The yellow wire you see just going up in the air off of the CR19A is a 1/4 Wave length antenna, once it was in the DS-7000 I noticed it had a range issue unless it was talking to the DS-7000 itself, which was my case, but I added incase someone wants it to talk to some external X-10 RF reciever.
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spectroil

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Re: Greatly Simplified DS7000 Relay Driver Mod
« Reply #1 on: March 09, 2011, 10:04:00 AM »

Hi,
I'm looking for that, but I also need one way to put a timer, when the alarm is trigged , the timer start, and a my big federal sign siren start...

It's possible?  any Idea??
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dave w

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Re: Greatly Simplified DS7000 Relay Driver Mod
« Reply #2 on: March 09, 2011, 11:11:23 AM »

Hi,
I'm looking for that, but I also need one way to put a timer, when the alarm is trigged , the timer start, and a my big federal sign siren start...

It's possible?  any Idea??
If you use CM15A and AHP you could OnAlert or a Power Flash to trigger a macro for the siren.

Otherwise you would have to modify the PCB design to incorporate an on board timer like a 555 timer chip, or use an external timer board like http://www.smarthome.com/7279/Delay-Timer-Relay-ELK-960/p.aspx which appears can be triggerd from WildBill47 relay board.
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