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cat 5 cable differences

By robertkeating ·
Is a Cat 5 Patch Cable and a standard Cat 5 Network cable the same ie. wire pin out?

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by Oz_Media In reply to cat 5 cable differences

"Both CAT5 and CAT5e have 100 ohm impedance and electrical characteristics supporting transmissions up to 100 MHz. The differences between CAT5 and CAT5e show in all aspects of performance: capacitance, frequency, resistance, attenuation, and NEXT. CAT5e components were designed with high-speed gigabit Ethernet in mind. While CAT5 components may function to some degree in a gigabit Ethernet, they perform below standard during high-data transfer scenarios. CAT5e cables work with ATM and gigabit speed products. Simply, if you are using a 100Mbps switch, get CAT5e cable instead of CAT5.

CAT5e is formally called ANSI/TIA/EIA 568A-5 or simply Category 5e (the e stands for ?enhanced?). CAT5e is completely backward compatible with current CAT5 equipment. The enhanced electrical performance of CAT5e ensures that the cable will support applications that require additional bandwidth, such as gigabit Ethernet or analog video. "

I work in telecom and have run a few thpousand feet of Cat5 and 5e. The pinout is the same, CAT5e is EIA/TIA 568 tested to 100MHz the same as CAT5 but is manufaturers tested to 200MHz whereas CAT5 is only manufacturer tested to 100MHz standard.

Now these standards and how they are applied differ also. CAT5 will be tested at 100MHz but that only needs to be on two pairs for it to be certified. 5e is supposed to be gigabit ready so they test it to 200 MHz which ensures that more than one pair gat at least 100MHz, making it a better choice for gigabit ethernet.

IN a nutshell, Cat5 will give you full duplex throughput but not always on ALL pairs. 5e means you will hae a better chance of getting full duples speeds on more than one pair.

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by gralfus In reply to cat 5 cable differences

Yes. A patch cable is typically a short, pre-fab cable with plugs already attached. It is intended to connect one device to another in a rack, or a PC to a LAN outlet.

A crossover cable would have a different pinout on one end, and is intended to connect two NICs together so that two PCs can talk to each other without going through a switch.

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