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[#] Tue Mar 21 2017 13:24:25 EDT from Ragnar Danneskjold

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TIL - APC UPS's use a proprietary serial cable, reversing pins 1 and 3. If it sees voltage on the wrong pin, it shuts the unit down - in other words, don't plug in a standard serial cable if you want your equipment to not shut down suddenly.

Fuckers.

[#] Tue Mar 21 2017 18:17:31 EDT from the_mgt

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hahaha, that is seriously funny!

O only use a USB variety of their devices.



[#] Tue Mar 21 2017 22:47:16 EDT from wizard of aahz

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Imagiining the look on Ragnar's face.

[#] Wed Mar 22 2017 18:00:12 EDT from Ragnar Danneskjold

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Better yet, imagine what came out of my mouth!

[#] Fri Mar 24 2017 17:11:05 EDT from IGnatius T Foobar

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We should not be forced to imagine. Please post a five page Root Cause Analysis.

[#] Mon Mar 27 2017 15:40:56 EDT from Ladyhawke

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Rule #1...or perhaps go straight to #4.



[#] Tue Mar 28 2017 01:20:11 EDT from kc5tja

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RS-232, EIA-232, TIA-232 standards apparently do not define bit framing on the serial cable. Something like ITU V.3 or V.4 standards to. *-232 merely defines the circuits that exist on the interface and their voltages. Yet, everyone since the days of teletypes has referred to these interconnections simply as RS-232 links despite the true distinction. :)

[#] Tue Mar 28 2017 01:20:18 EDT from kc5tja

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[#] Wed Mar 29 2017 08:07:16 EDT from zooer

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TIL... that with SSD the more unused space the longer the life of the drive.  I don't know why I missed this important information.



[#] Thu Mar 30 2017 07:39:36 EDT from IGnatius T Foobar

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Have you been watching Linus Tech Tips?

[#] Thu Mar 30 2017 10:13:38 EDT from zooer

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No, and after watching a few seconds of the intro video on his channel I don't want to watch.



[#] Mon Apr 03 2017 14:15:59 EDT from Shazam

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Zooer, what's wrong with cis? Vast majority of people I know are cis, and even though most of them give it no thought whatsoever, I think they are content with it. 

Also, quite of lot of cis people voted against Trump. 

 

Today (It was really yesterday) I learned that if you're going to be the Hero and come jump somebody's car for them, you really should say, OUT LOUD (several times) "Red to positive, black to negative"

I ALSO learned that if you don't get it right, a fuse blows.  Thank goodness for fuses.  

I ALSO learned that AutoZone doesn't necessarily stock fuses for a 2004 Honda.  

So I really learned a lot yesterday. 



[#] Mon Apr 03 2017 17:08:50 EDT from zooer

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Mon Apr 03 2017 02:15:59 PM EDT from Shazam

Zooer, what's wrong with cis? Vast majority of people I know are cis, and even though most of them give it no thought whatsoever, I think they are content with it. 

Also, quite of lot of cis people voted against Trump.  

 "CIS: CIS-Short for cis-gendered, meaning someone who identifies with the sex they are born as"

I didn't know there was a term for accepting your birth sex, I saw it used negatively.  I didn't know people shamed "cis" people.
A lot of people voted for Trump and a lot of people voted against Trump, their sexuality/sexual identification has nothing to do with it and doesn't matter.
 

 

Today (It was really yesterday) I learned that if you're going to be the Hero and come jump somebody's car for them, you really should say, OUT LOUD (several times) "Red to positive, black to negative"

 

 Actually connect one end of the cable to the positive on the good battery and the other end of the cable to positive on the bad battery.  Connect another cable from negative on the good battery to the metal frame on the car with the dead battery.  The colors of the cables doesn't matter, the connection does.



[#] Mon Apr 03 2017 19:40:10 EDT from kc5tja

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The colors exist as a mnemonic to help you get the connections correct. You're right that the absolute colors are immaterial; however, *convention* says that red is positive, and black is negative. It's as true for 3V, 6V, and 9V battery holders as it is for jumper cables. (Disclaimer: I believe UK has a different coloring mnemonic; blue and brown, IIRC. But, same idea holds.)

Regarding Trump voters, trends exists which lean one way or the other for various demographics. Statistically speaking, Trump voters by and large are cis-genered; it is, again, not an absolute, but a *generally* valid, well, generalization.

And, yes, cis-shaming is a thing, unfortunately. Even non-cis folks I hang out with tend to shy away from those who shame a lot, so let it be known that even in the non-cis community, cis-shaming is generally frowned upon.

[#] Mon Apr 03 2017 19:41:59 EDT from kc5tja

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Accidentally mashing the mouse button while moving it from right to left on a Firefox window in Linux is sufficient to cause it to core dump (at least while on the GMail website). The effect of the mashing was to drag a selection box starting inside the right-hand ad panel, and for the button to be released to the far left of the window. Result: a dialog asking if I wanted to send a crash report to Firefox.

[#] Tue Apr 04 2017 09:27:14 EDT from IGnatius T Foobar

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You're right that the absolute colors are immaterial; however,
*convention* says that red is positive, and black is negative. It's as


I can never quite remember which is which when I'm working with -48 volts DC.

(Yes, that's a thing. In fact, it's nearly universal as the voltage supplied to telecom gear.)

[#] Tue Apr 04 2017 12:15:32 EDT from IGnatius T Foobar

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Social justice warriors discussion has been moved to
Politics & Propaganda

[#] Tue Apr 04 2017 12:55:51 EDT from kc5tja

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And this is why I still prefer Citadel over other online forums. ;)

[#] Wed Apr 19 2017 02:12:04 EDT from kc5tja

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Companies which use coding gamification services/sites in their interview process are an immediate and un-negotiable disqualification to me. These services often obscure vitally important error messages which requires the coder to just (excuse my french) fucking GUESS at why your code is failing some obscure, obfuscated criterion. Real-world doesn't work that way. Sorry.
No way, no how.

[#] Wed Apr 19 2017 10:39:14 EDT from fleeb

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Yeah, one of these wanted me to guess at what obscure C-related memory management problem they had... for a C++ position.

I'm guessing they never found a decent C++ guy for that position.

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