There are a LOT of technologies at play
and some country-specific preferences ¨C if there¡¯s already an
proximity card system in place, you really need to start first by identifying
the technology in use there so that you can [possibly] find a compatible reader
and avoid making people tote around two credentials.
?
At my house I started with a GP30-21 reader
(manufacturer unknown, and aside from the couple I found on eBay, very hard to
source in the US, but apparently a bit more popular in Europe) ¨C these read
media 125KHz encoded but unclear as to the specific technology (I suspect EM4100
based on anecdotal evidence ¨C also somewhat difficult to source in the US)
?
I converted, however, to HID Global 5452 readers
which read HID-standard 125KHz media, which is far more common ¨C at least
in the US
¨C and far easier to source media. In fact, the local university where my girlfriend
works, also uses 125KHz media ¨C so when she has a coworker coming to
house/pet sit while we¡¯re on vacation, I can just ¡°enroll¡±
her University ID card rather than issuing a new token, and voilla--time controlled
access and automatic login to my house. HID is also the leader (again, at least
in the US)
for access control media and readers, which may be a consideration,
?
Also note, though higher security
environments, like the museum where my girlfriend also works, are migrating
away from the 125KHz platform and moving to the 13.5MHz HID Encrypted
[credential <-> reader bidirectional handshake] and/or MiFare platforms ¨C
neither of which, of course, is compatable with either the HID 125KHz or EM4100
platforms, though some places are issuing multiple-technology cards that
support HID 13.5MHz and HID 125KHz on the same card.
?
If you want to go really cheap, you could
build an enclosure for this
which uses EM4100 credentials.
?
So long story short ¨C you should start
by identifying the type of credential you need/want to use, and then that
decision will inform what readers are available to you.
?
--
Lincoln King-Cliby, CTS
Commercial Market Director
Sr. Systems Architect | Crestron Certified
Master Programmer (Silver)
ControlWorks Consulting, LLC
Crestron Services Provider
?
All,?
I am looking for prox reader, that can be integrated with podium,
connected to Crestron processor trough RS232.?
Idea is, to have instructor come in to podium, swipe their prox card,
save system configuration that they use for their classes.?
Then every time they came in, they just swipe their prox, that will
activate configuration that was saved on the processor. Let's say prox ID for
teacher A will activate stepper, and set lights, projectors, etc etc etc ....
