So after some more research, I think I've solved 2 more problems:<br><br>1. There is a company out of Hong Kong on eBay that has Wiegand-26 readers and keypads at a very reasonable price. I picked up 3 readers and about 50 tokens for around US$100 shipped. Will let everyone know how well it works out. They even have a keypad+RFID+fingerprint reader for aorund US$129.<br>
<br>2. For the door hardware, there is a simpler way to secure it. We got a large electromagnet that can be fitted to the inside of the door without much modification. The problem with this hardware is that we could lock ourselves out if the system glitches, and we also keep the landlord/maintenance guy out who sometimes fixes things.<br>
<br>Apparently, some security installers get around this by installing a micro switch or a mercury switch inside the door, so that turning the key deactivates the door holding relay. There are commercial kits for this or we can do DIY. I believe this would also preserve the deadbolt in the door, so that we can also use the key to secure it if something is broken.<br>
<br>Will let everyone know how it goes. Our ultimate goal is to be able to give out a code or key to permanent key holders, 1-day users, and even one-time open requests. Also, we will have a web portal and SMS notification of alarms and a list of who is likely at the shop if we want to stop by and hang out.<br>
<br>Arclight<br><br><div class="gmail_quote">On Thu, Aug 13, 2009 at 3:11 PM, john arclight <span dir="ltr"><<a href="mailto:arclight@gmail.com">arclight@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Til,<br><br>I agree with you on the door hardware. Most industrial/office spaces use commercial mortise hardware which is not like the normal residence deadbolt. One solution is the eletromagnet lock, although this requires about 200ma continuous power and is ahrd to override in case of failure or if the landlord needs to get in.<br>
<br>We found a solution that does not require modification. It re-uses the existing door lock cylinder, but adds a solenoid actuator. It's designed for retrofit and fits in the space occupied by the old hardware, so it's easily removed if you move out.<br>
<br>Check out:<br><a href="http://www.sdcsecurity.com/mngmoc.aspx?id=57" target="_blank">http://www.sdcsecurity.com/mngmoc.aspx?id=57</a><br><br>It appears that these are available to work with many common brands of lock cylinder.<br>
<font color="#888888"><br>
Arclight</font><div><div></div><div class="h5"><br><br><br><br><div class="gmail_quote">On Thu, Aug 13, 2009 at 12:14 PM, Tilman Frosch <span dir="ltr"><<a href="mailto:til@das-labor.org" target="_blank">til@das-labor.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Am Donnerstag, den 13.08.2009, 13:30 -0400 schrieb Tim Krabec:<br>
<div>> I read that das-labor has a usb based entry<br>
> system(<a href="https://www.das-labor.org/wiki/AnonAccess/en" target="_blank">https://www.das-labor.org/wiki/AnonAccess/en</a>) they appear to be<br>
> down<br>
<br>
</div>AnonAccess is to be used with i2c-capable chipcards, actually. We do not<br>
use the system at our space right now, as a quality lock was the more<br>
pragmatic solution. Main reason is that an electronic entry system<br>
requires some modifications to the door and frame, which our lessor<br>
wouldn't be too happy about. Next to that with every entry system you<br>
need some solution to override it in case of emergency, which is also<br>
not trivial in our current space.<br>
The website should be back up soon, hopefully.<br>
<br>
<br>
Til<br>
<div><div></div><div><br>
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