The best way to begin planning cable runs is with a blueprint.
Try to find one with as much detail as possible. If you can
get hold of a computerized version, so much the better -
it will provide for easier updating. If all else fails, ask
for the fire evacuation plan map that every school has to
file with the state government. (See the NetDay
How-To Guide for more on making a wiring plan.)
As you map
out the runs - from the central
point to two jacks in each schoolroom - you must consult
with the person who manages facilities at your school to
be sure you're not damaging the buildings or putting yourself,
other volunteers, school employees or students at risk.
You must route Category
5 cable no closer than 5 feet to any high-voltage
(power) wiring or fluorescent lighting. High-voltage
fields and the energy from fluorescent tubes interfere
with data transmission. Also, cable runs must not be
longer than 328 feet (100 meters), including any service
coil or patch cords.
Longer stretches of cable won't transmit data as quickly.
normally cut cable after it's run.