View Single Post
  #4   Report Post  
Posted to uk.d-i-y
Keyser Sose Keyser Sose is offline
external usenet poster
 
Posts: 26
Default Anyone know the capacitance per meter of T&E cable?

Almost nothing. The line capacitance will never get charged. Not the same
in data cable though. If loads of 1's and 0's are going down the wire at
ten megabits per second (to say nothing of 10GE) then a stream of loads of
1's will charge the line capacitance and thus teh first few zero's at the
end will get missed - hence stuff like bit interleaving etc.
Steve


"John Rumm" wrote in message
...

Only I was just thinking it may be a easy way to measure an installed (but
as yet unterminated) length of cable using a LAN tester with cable length
measurment capability...

(the default assumed capacitance on the tester is set for cat5, but you
can vary it over quite a range)



--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/