Author Topic: modern life is rubbish  (Read 3240 times)

Kim

  • Timelord
Re: modern life is rubbish
« Reply #50 on: September 11, 2019, 05:31:50 pm »
I've also been embracing Power-Over-Ethernet where appropriate[2], to prevent excessive breeding of wall-warts.

Every day is a school day.
Do you need to install special cable to do that then? (I assume it's not just your bog std Cat5)

Bog standard cat5.  The device needs to be designed to accept PoE (802.3af), and you need either a switch that can supply PoE (which nearly always means a big one with evil noisy fans) or a mid-span power injector.  Ethernet ports are transformer-isolated, and PoE intercepts the cable before the transformers to supply power.

You can sometimes bodge it with non-compliant 'passive PoE', where you simply break out the two unused pairs in 10/100M Ethernet and stick DC power up them with readily available dongles or passive injectors.  There's no proper negotiation of current draw, no guarantees about voltage drop in the wiring[1], and you can't esaily do it with gigabit, which uses all the pairs.  Often useful, but proceed with caution.

Most proper PoE kit tends to be things like IP phones, CCTV cameras and WiFi access points, where a separate wall-wart is either impractical (eg. because it's going on a roof) or an unwanted cost/point of failure (if you've got a couple of dozen phones in an office, better to just have a single power supply to worry about).

As with so many rubbish things in life, assorted non-802.3af-complaint 'standard' implementations proliferate (Cisco, Ubiquiti, etc.).

There's probably a parallel universe where WiFi wasn't invented, where this became the de-facto standard for charging laptops.


[1] 802.3af uses 48V to provide headroom and minimise I2R losses, while still qualifying as extra-low voltage for safety purposes.
Careful, Kim. Your sarcasm's showing...

Cudzoziemiec

  • Dormant but requires tea
Re: modern life is rubbish
« Reply #51 on: September 11, 2019, 05:41:31 pm »
I reworded my House when I moved in, and like you I’ve run out of sockets in many rooms. The one room that has spare sockets is,the Lou Gehrig, but that is because we’ve moved the TV and it’s associated boxes to a different location and now need to run that all from a single extension lead. Pah!

Chortling at your autocorrects :)
I’m not doing much better than yesterday am I?
I like them!
So do I! :) :)
At some point in the ride, you might find yourself in Osaka with Spanish speakers where you had expected Edinburgh talking Greek. This does not mean you are lost, or even off route.

ian

  • fatuously disingenuous
    • The Suburban Survival Guide
Re: modern life is rubbish
« Reply #52 on: September 11, 2019, 10:10:43 pm »
Honestly, Tesla had all this wireless power sorted out with his Big Tower.

The most grabby source of pluggery in The Asbestos Palace seems to be lamps. They've proliferated like amorous rabbits in a viagra warehouse. It's like a bloody light showroom. Those and the cupboard of technological shame under the stairs. There is stuff plugged in under there of uncertain and possibly no known function. All I know is that I shouldn't ever unplug it. Bad things may happen. This is one of the problems in living in a structure situated at precisely the junction of this mortal plain and Hell, a structure previously maintained by BBC set designers.
!nataS pihsroW

Kim

  • Timelord
Re: modern life is rubbish
« Reply #53 on: September 11, 2019, 10:23:25 pm »
The most grabby source of pluggery in The Asbestos Palace seems to be lamps. They've proliferated like amorous rabbits in a viagra warehouse. It's like a bloody light showroom.

Ever paid attention to the lamps in House MD's erm, house?  Once you start counting them, you can't stop noticing more.  Lazy set-dressing or useful places to conceal a Vicodin stash?  Who knows.  The floor must be a rats' nest of dodgy USAnian plug boards.
Careful, Kim. Your sarcasm's showing...

ian

  • fatuously disingenuous
    • The Suburban Survival Guide
Re: modern life is rubbish
« Reply #54 on: September 11, 2019, 10:31:32 pm »
I don't think I've seen House. I've checked my lamps collection, no Vicodin, which is a disappointment. US plugs fall out if you look at them but then again, the power itself goes out if you think about it too much.

A lot of the lights are on timers, so they come on and go off at random times, so the neighbours think we're in the throes of a really slow disco.
!nataS pihsroW

ian

  • fatuously disingenuous
    • The Suburban Survival Guide
Re: modern life is rubbish
« Reply #55 on: September 11, 2019, 10:35:16 pm »
In other matters of modern life being rubbish (I've turned this into a podcast, it's really good, but alas only currently available inside my head), I was reminded by Robert Webb the other day, but where is the 'metal' button?
!nataS pihsroW

Kim

  • Timelord
Re: modern life is rubbish
« Reply #56 on: September 11, 2019, 10:49:49 pm »
A lot of the lights are on timers, so they come on and go off at random times, so the neighbours think we're in the throes of a really slow disco.

We've got that, on account of lights coming on automagically as you enter the room[1].  This seemed wanky when I added the code, but barakta (who is low on hands and reckons computers are for swearing at, not talking to[2]) finds it unexpectedly helpful.  It also means that I don't get to wander around muttering that "it's like the Blackpool illuminations in here"[3], except when visiting the in-laws.

(As discussed in threads passim, the doorbell turns the slow disco into a full-on rave.)


[1] The way I see it, if you're going to the effort to design a migraine-proof dimmable LED lamp driver, it might as well have Features.
[2] "Fuck off, Siri."
[3] Or something less cliched and more generationally-appropriate about carbon footprints.
Careful, Kim. Your sarcasm's showing...

ElyDave

  • Royal and Ancient Polar Bear Society member 263583
Re: modern life is rubbish
« Reply #57 on: September 12, 2019, 10:43:49 am »
[2] "Fuck off, Siri."

I tend to prefer "Siri, you're an absolute fuckwit"
“Procrastination is the thief of time, collar him.” –Charles Dickens

ian

  • fatuously disingenuous
    • The Suburban Survival Guide
Re: modern life is rubbish
« Reply #58 on: September 12, 2019, 11:56:21 am »
There's nothing sophisticated about my lighting arrangements, they're just attached to random timers that only get individually changed when they've become sufficiently annoying in their behaviour. The only ones I change with any fervour are the driveway lights because a failure to do so would encourage bears.
!nataS pihsroW