Cable segment and repeater spacing.

[Physicist3]

Hi, I've read that the max length of UTP and STP cable segments is 100m? Does this mean that a repeater is required after every signle cable segment?

 

[berkeman]

Hi, I've read that the max length of UTP and STP cable segments is 100m? Does this mean that a repeater is required after every signle cable segment?

You didn't say it, but you must be referring to CAT-5 or similar systems?

http://en.wikipedia.org/wiki/Category_5_cable#Maximum_cable_segment_length

Maximum cable segment length

According to the ANSI/TIA/EIA standard for category 5e copper cable (TIA/EIA 568-5-A[5]), the maximum length for a cable segment is 100 meters (328 feet). If longer runs are required, the use of active hardware such as a repeater or switch is necessary.[6][7] The specifications for 10BASE-T networking specify a 100 metre length between active devices.[8] This allows for 90 metres of fixed cabling, two connectors and two patch leads of 5 metres, one at each end.

For other network types, you can go much farther, but at lower data rates.