What is the maximum length of a cable in a local LAN set up? The Cat-5 Ethernet specification dictates that the...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
maximum length a CAT-5 cable can have is 100 meters. In the case you require a cable longer than 100 meters, you need to install a simple repeater I.E. a hub, or a switch, which will allow you to extend the total length.
You should also be aware that there is a specific rule for such situations, it's mostly known as the 5-4-3 rule which dictates that you can have a maximum of 5 segments with 4 repeaters, of which 3 segments are allowed to be populated.
The below diagram will help you understand this better:
Seg1---R---Seg2---R---Seg3---R----Seg4---R---Seg5 | | | PC PC PC
Here you can see there are 5 segments, which are connected via 4 repeaters (R) and there are only 3 segments populated, Seg1, 3 and 5.
Dig Deeper on LANs (Local Area Networks)
Related Q&A from Chris Partsenidis
Learn how to understand the difference between bit rate and baud rate in this expert answer.continue reading
Expert Chris Partsenidis offers guidelines for a smooth and successful PSTN to VoIP migration.continue reading
What SIP trunking basics should you know before you deploy? SIP trunking guru Chris Partsenidis explains what you need to know about SIP trunking ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.