User's Manual

CATV Cable Requirements
InterReach Spectrum Remote Access Unit Installation Guide - Preliminary Update for Issue 3 Page 19
ADCP-77-168 • Issue 3 • December 2011 © 2012 TE Connectivity Ltd.
APPENDIXB:75‐OHMCATVCABLE
The75‐OhmCATVCable:
• connectstheIFEUtoMRAU(s)andtheMRAU(s)to
theSRAU(s)
• transmits(FWD)mul
tibandandreceives(REV)IFsignals
• de
liversDCelectricalpowertotheRAUs.TheSpectrumIFEUDCvoltageoutputis+54Vdc
nominal.IftheIFEUreachesitscurrentlimit,acurrent‐limitingcircuitprotectsit.
• carriesconfigurationandstatusinformation
• uses75
type‐Fconnectorswithcaptivecenterpins.
CATVCableRequirements
BeldenCATVcableorequivalentisrequired(seeFigure2).
• Forthe
RG‐6cable,useaBelden1695ACoax.
• Forthe
RG‐11cable,useaBelden7732ACoax.
RG-11
Belden 1695A Coax
RG-6
Belden 7732A Coax
NOTE: TEConnectivityrequiressolidcoppercenterco nductorCATV cableforproperDCvoltagetothe
RAUandmaximumdist ances.
Figure2.Belden 1695A and 7732A Coax Cables
• UseRG‐6orRG‐11CATVcablebetweentheIFEUandMRAU,thetypicallengthsofwhichare
listedbelow.
Cable Type
Minimum Length Maximum Length
Meters Feet Meters Feet
RG-6 0 0 140 459
RG-11 0 0 200 656