[sudo-discuss] pair programming station and UPSs

[Jake]

by "jake's co-working station" robb means "the pair-programming station"
which is a desk on wheels with two monitors, two keyboards, and two 
computers arranged symmetrically so that two people can use the same 
computer.

https://sudoroom.org/wiki/

there are three UPS at the pair programming station.  One is the one that 
the station is plugged into, which does not have a USB port, just the 
weird DE9F socket that may have this pinout:
http://www.diger-mobile.narod.ru/pic/apc_conn.gif
or this:
http://www.junradio.com/mid/UPS/image003.gif

there's another large UPS on the floor which got rained on and stopped 
working, which is unfortunate because it has USB and i actually had it 
working on a rooftop system, protecting that system from unexpected power 
failures (it would safely shut down when power went out, and turned back 
on when power returned) but maybe it could be fixed

and the third UPS is a weird 12v thing like this:
https://www.amazon.com/Belkin-Battery-Backup-Supply-BU3DC000/dp/B004RRX1CG
http://cache-www.belkin.com/support/dl/p75319-b-bu3dc000-12v.pdf

it doesn't have any alarm outputs (unless you count the LEDs) but since it 
serves the DC output directly, we can monitor battery voltage the same way 
it's done at the front door computer - that is, it's 13.7VDC when AC is 
present but it will go down if the power fails.

-jake

On Thu, 27 Oct 2016, robb wrote:

> there's a working 12v ups by jake's co-working station
>
> is ccl onboard with locking the door?
>
> On Thu, Oct 27, 2016 at 3:43 AM, Marc Juul <juul at labitat.dk> wrote:
>> We definitely want a door. I have all the stuff for it ready to go. Got
>> delayed because the RFID readers i ordered from china was defective.
>>
>> The door to stage and basement can be default locked with only a few
>> people having keys (for now, we can RFID them later if needed). They are
>> not fire doors.
>>
>> The door near the bathroom needs a panic bar and an electric strike and an
>> RFID reader and magnetic card reader and a beagle bone black and a battery
>> backup and a box to mount it on the wall. We have all of this. Some minor
>> woodworking will be necessary to install the electric strike.
>>
>> I haven't tested the new shipment of RFID readers yet.
>>
>> --
>> marc/juul
>>
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>>
>