PoE for 'other' devices

[jakematic]

So... I've got an even crazier idea than usual....

Long story short there are computer fans mounted in poplar boards with appropriately sized holes in some of my windows to exchange air.
They are powered by wall transformers.
The one in my office has an 'ethernet' cable connected to a project box with a DPDT switch for Hi/Lo (2 or 4 fans) following PoE standards. Sort of.

Would I dare to find 24V or 48V fans and attempt the same with a switch ?
Am picturing Chris's RMA numbers going up like crazy.. and yeah I burnt enough switches already for various reasons.

RMA #s due to Jake

gasanimation.gif (388.72 KiB) Viewed 11512 times

Assuming... they are clean running brushless... am thinking I could schedule this PoE on/off based on other factors.

Call me ... lots do.

[sirhc]

https://www.streakwave.com/Itemdesc.asp ... erTap&o1=0

[jakematic]

You guys <bleep>ing rock !

So it's not as crazy as the idea I had in 1989 to upload ASCII TIFF hex files from a Logitech ScanMan to an EBCDIC S/36, kept it in 96 column format, using escape sequences to a twinaxial attached HP LaserJet II, and printed .... gasp .... graphics.

We saved 78% on carbon forms that year and switched all but bulk reports from the line printers to the 'expensive' lasers.
As per usual I got the non-cash pat on the back

[jakematic]

Thought the netonixctl command *might* be the proper way to control the port power at command line.

Tried but get i2c errors, and didn't want to break anything fiddling.

Code: Select all

admin@ws12:/usr/bin# netonixctl -h
Usage: netonixctl [-hv] [--pin <num>=<0|1>] | [--poe <port>=<off|24v|48v|48vh> ...] | [--poe_led <port>=<off|24v|48v|48vh> ...]
 --poe: set PoE on ports
 --poe_led: Set PoE leds on ports
 --pin: Set GPIO pin
 -v: Verbose
 -h: Display this

admin@ws12:/www# netonixctl --poe_led 7=off
netonixctl[499]: i2c_read failed after 5 tries: Failed reading data to slave
netonixctl[499]: i2c_write failed after 5 tries: Failed writing data to slave
netonixctl[499]: i2c_read failed after 5 tries: Failed reading data to slave
netonixctl[499]: i2c_read failed after 5 tries: Failed reading data to slave