NEMA is an American standard used in North America and parts of Asia. NEMA 10-30 specifically is a dual voltage socket that delivers 120V or 240V depending on whether you use L1/Neutral or L1/L2. It isn’t used anymore though as it isn’t grounded.
Yea there’s too many variations, but I don’t dislike the concept of different designs for different currents. Here in Denmark there is zero difference between a 10A, 13A or 16A 230V outlet, you’ll only know when the fuse blows. Though most outlets in the house is 13A. We also use the CEE standard, but that is mainly for industrial use and sucks to connect and disconnect.
I've got one in my wall and my clothes dryer is plugged into it. My house was built in 1962 and the electrical situation in my house remains the fucking nightmare it was when the house was built, though.
Network loops are real.
Network loops are common.
Network loops are the leading cause of people screaming "for fucks sake!" After spending far too long looking for other solutions to why the network goes down intermittently.
If you have a good switch or router, correct. If you have cheap consumer level crap, it could potentially cause a lot of issues until you unplug it. It wholly depends what’s on the other end of those jacks, though. Who knows what “in” and “out” mean in this context.
If you did it at my office, nothing because typically only one of those jacks is cross connected (the other is a spare wire) also our switches use spanning tree. Most network loops I've seen have been caused by logical configuration errors.
I did this in college (2011) once... Friday class was going over stuff I already understood and got bored, found a cable and played with it for a few min before plugging in both ends to the wall. Monday morning get to class and it's cancelled because the network is down. I then understood what I did and unplugged the cable.
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Gotta keep those packets in the network where they belong, don't want them leaking out of the sockets!
Heavens forbid someone decide to turn multicast packets into radio waves
What sorcery is this?! I found a witch!
You plugged those into the wrong ports. You're supposed to plug both ends into here:
Don't worry if you have to use a lot of force to get it in there. That's just to make sure it doesn't come out if you trip over it.
What the fuck country uses that socket?
NEMA is an American standard used in North America and parts of Asia. NEMA 10-30 specifically is a dual voltage socket that delivers 120V or 240V depending on whether you use L1/Neutral or L1/L2. It isn’t used anymore though as it isn’t grounded.
The convenient 73 variants insure that you cannot use the wrong plug into the wrong outlet, thus increasing user safety through simple design choices.
Yea there’s too many variations, but I don’t dislike the concept of different designs for different currents. Here in Denmark there is zero difference between a 10A, 13A or 16A 230V outlet, you’ll only know when the fuse blows. Though most outlets in the house is 13A. We also use the CEE standard, but that is mainly for industrial use and sucks to connect and disconnect.
I've got one in my wall and my clothes dryer is plugged into it. My house was built in 1962 and the electrical situation in my house remains the fucking nightmare it was when the house was built, though.
Yea I worded that wrong, should have said it isn’t installed anymore 😅 because plenty is still in use 😊
We had such a case in the company, way back before switches got smart enought to deal with this.
Our IT department was not exactly happy...
IT: "Did you verify that your data cable is connected to the outlet in the wall?"
Client: "Of course I did. I'm not an idiot!"
O spanning tree, o spanning tree, how lovely is thy uptiiiime.
My eye is twitching.
Careful. Amazon could sue you!
... What does this do to a network anyway? Nothing, right?
If you remember to use a cross-over cable, it ruins the address resolution protocol and stops everything from working.
Modern routers have code exclusively to detect it and disable the ports.
And if you don't have spanning tree enabled, this could be a big problem
Network loops are real. Network loops are common. Network loops are the leading cause of people screaming "for fucks sake!" After spending far too long looking for other solutions to why the network goes down intermittently.
If you have a good switch or router, correct. If you have cheap consumer level crap, it could potentially cause a lot of issues until you unplug it. It wholly depends what’s on the other end of those jacks, though. Who knows what “in” and “out” mean in this context.
If you did it at my office, nothing because typically only one of those jacks is cross connected (the other is a spare wire) also our switches use spanning tree. Most network loops I've seen have been caused by logical configuration errors.
Yeah, gotta keep those plugged. It's just a service for fully draining/refilling the network for maintenance
Powaaahhh
Is this a call for help?
Delay the signal 0.0000000001 s with this one neat trick.
Do this at work to increase productivity!
I did this in college (2011) once... Friday class was going over stuff I already understood and got bored, found a cable and played with it for a few min before plugging in both ends to the wall. Monday morning get to class and it's cancelled because the network is down. I then understood what I did and unplugged the cable.
Haven't told anyone until today.
Your poor school it guy went through something
We do a little trolling
Token circle
And with enough experience can evolve into token sphere.
When the guy in the server room ran out of patch cables
hehe, that gives IT the painfull task of manual searching 😂
127.0.0.1
Test your spanning tree.
Internets require a zero static loop. Gotta keep the bits flowing or they degrade.
The switchboard or whatever would probably know it's receiving its own communication