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Can i reuse cables?

fantasi

My Yngy is My HoneY!
#1
I used to have 3 computers to my switch, and i use a cross over isnt it to connect ot them? cuz ill be buying a new router so can i reuse them?

WIth that in mind when do i use the patch cables and when do i use the crossovers? i know 1v1 i use crossover, i know patch something with hub or something? am i wrong?
 

ming

OSNN Advanced
#2
Routers, especially newer ones should allow you to use cross-0ver cables without a problem. I use a cross-over cable with my Netgear DG814 and it works perfectly.
Usually patch cables are used when connecting a PC to a switch/hub/router, while a cross-over cable is used only when connecting a PC to PC directly without a switch/hub/router in between.
 

Steevo

Spammer representing.
Political User
#7
I use crossovers at home with any newer hub and they work fine as the ports are auto sensing.



And no, I didn't order 6 crossover cables. They were mis-shipped.
 

Son Goku

No lover of dogma
#8
Yes, a cable can be re-used after it's been unplugged from one set of devices. It's basically copper wire (actually 4 pairs)... When you un-plug the RJ-45 connectors (those fat connectors you see on the ethernet cables), the cables are still good. Cables can go bad (if for instance they got a really bad kink in them and the wires inside got crushed, etc), but simply moving from one device to another doesn't pose a problem.

Basically, you want to have 1 cross in the path between your 2 devices somewhere, else an odd number of crosses. What it's doing is crossing the transmission line on one device, to the receive line on the other (aka the orange and green pair). It needs to do this, so each respective device can receive the "messages" sent to it by the other...

Generally, when your connecting 2 similar devices you need a cross. This would be PC to PC, router to router, switch to switch, etc. PC to router is the same sort of deal.

In the case of hubs and switches, they generally introduce a cross inside the device. This is why you use a straight through, when connecting the PC or router to a hub or switch. If you used a cross over cable connecting a PC to a switch for instance, it would be like connecting 2 cross over cables in series, hence no cross in the actual connection...

If there is a means on the device (a given port perhaps) to select whether the device will introduce the "cross over" itself, or not, then the cable you use doesn't matter. Just set the device to it's "other mode" if you don't get a link light or whatever...
 

mlakrid

OSNN BASSMASTER
Political User
#9
Son Goku said:
Yes, a cable can be re-used after it's been unplugged from one set of devices. It's basically copper wire (actually 4 pairs)... When you un-plug the RJ-45 connectors (those fat connectors you see on the ethernet cables), the cables are still good. Cables can go bad (if for instance they got a really bad kink in them and the wires inside got crushed, etc), but simply moving from one device to another doesn't pose a problem.

Basically, you want to have 1 cross in the path between your 2 devices somewhere, else an odd number of crosses. What it's doing is crossing the transmission line on one device, to the receive line on the other (aka the orange and green pair). It needs to do this, so each respective device can receive the "messages" sent to it by the other...

Generally, when your connecting 2 similar devices you need a cross. This would be PC to PC, router to router, switch to switch, etc. PC to router is the same sort of deal.

In the case of hubs and switches, they generally introduce a cross inside the device. This is why you use a straight through, when connecting the PC or router to a hub or switch. If you used a cross over cable connecting a PC to a switch for instance, it would be like connecting 2 cross over cables in series, hence no cross in the actual connection...

If there is a means on the device (a given port perhaps) to select whether the device will introduce the "cross over" itself, or not, then the cable you use doesn't matter. Just set the device to it's "other mode" if you don't get a link light or whatever...
WOW... now this is a mouthful.... Hehehe...
 

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