DWL-900AP+ External Mounting Environmentals ;-((
grahame at wildpossum.com
Fri Dec 27 13:30:34 EST 2002
I am new to the list but have been lurking for sometime.
Last week I mounted my DWL-900AP+ systems in vented containers with an
additional metal skin to deflect as much heat away as possible. I had some
experience in going the same environmental casing for a 24/7 operating IR
Camera / Controller system for my wildpossumCAM (Linux of course).
Initial tests worked well - until the sun came over the house(s) and while not
directly in sunlight, the tempature raised to 32C internally caused the units
to both fail within 2 mins. According the DLINK spec they are suppose to
tolerate operations -10C to +55C: Well this is totally untrue according to my
experience - I hope your more successfull. My measurements show the units go
off or intermittent at +30C external - allowing for a 5C to 10C internal
onboard difference its operating temp is only 35C to 40C MAX. This was tested
on four units. All showed the same effect.
Interestingly usually the AP's lose ethernet connectivity first, then sometime
later RF conectivity. Bummer! Bummer!
So, now I am building a "Peiter Unit with integrated AVR uP + tempature
sensing" for the beasts; hopefully this will give total year long operations.
Love the slotted antenna buy the way Lyne. May build a couple myself but I
don't have access to laser cutting company, pity they couldn't do a couple of
runs for others too.
ex. VK2ZGK Glenhaven; Sydney.
grahame (at) wildpossum (dot) com
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