You're Grounded
length of grounding conductor or ground wire should be no more than
6 meters (20 feet)
digital 256 QAM levels
-8 to 10 dBmV
4 parts of coax
Center conductor, dielectric, braid & shield, outer sheath
cable clips needed when running cable horizontally
every 18-24 inches
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inside out
grounding conductor shall not exceed
#6 AWG size
downstream SNR minimum level
35 dB
these must not be used on coaxial drop cables
metal staples
cable clips needed when running cable vertically
every 30-36 inches
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outside in
this must be done before hooking up customer equipment
bond to house ground system
upstream SNR minimum level
31 dB
Cables for underground installations must
have a polyethylene (PE) jacket; have a flowing, self-healing flooding compound or braid wires
Max length of Cat 5 cable
328 feet
drill holes should
be drilled with outside hole slightly below inside hole (5 degree angle)
bonding option 2
to ground conductor
upstream receive power level
-2 to 2 dBmV
drop cable must be replaced if
copper braid,
solid dielectric material,
inner foil bonded to dielectric,
series 59 cable interfering with RF
wall plates must have
7/16" hex recess to hold the F-81 and prevent it from turning
Holes should be driven no closer than
1 1/2 inches from each other
General guidelines for bonding/grounding at the home
NEC Article 800
MER 256 QAM minimum threshold
35 dB
approved cables
minimum size
of Series 6 with a minimum foil-braid-foil, tri-shield configuration that includes a bonded inner foil tape, outer foil tape bonded to the jacket, and at least 77% braid coverage
Size of hole for single cable
1/2 inch
seal holes with
RTV sealent or calking