User's Manual Part 1

Expansion Hub Overview
InterReach Fusion Wideband Installation, Operation, and Reference Manual Page 45
D-620616-0-20 Rev H • TECP-77-044 Issue 7 • May 2013 © 2013 TE Connectivity Ltd.
75OhmTypeFConnectors
TheeighttypeFconnectorsontheExpansionHubarefortheCATVcablesusedtotransmitand
receivesignalstoandfromRAUs.Useonly75ohmtypeFconnectorsontheCATVcable.
TheCATVcablealsodeliversDCe
lectricalpowertotheRAUs.TheExpansionHub’sDCvoltage
outputis54VDCnominal.AcurrentlimitingcircuitprotectstheHubifanyportdrawsexcessive
power.
NOTE: Forsystemperformance,itisimportanttouseonlylowlosssolidcoppercenterconductorCATV
cablewithqualitytypeFconnectorsthatusecaptivecenterpinconnectors.Referto“Appendix
A:Ca
blesandConnectors”onpage191forapprovedcablesan dconnectors.
ManufacturingRS‐232SerialConnector
ConsolePort
ThisconsoleportisonlyusedbyTEmanufacturingtestpurposes.DONOTCONNECTANYTHING
TOIT.
LocalMonitoring
UseacrossoverEthernetcable(PN‐4069‐ADB)todirectlyconnectalaptoporPCtotheRJ‐45
femaleconnectorforlocalmonitoringorconfiguringtheExpansionHubandassociatedRAUs
usingtheAdminBrowser‐EHresidentsoftware.ThecabletypicallyhasaRJ‐45maleconnectoron
bothends.Referto“TCP/IPCross‐OverCable”onpage200forthecablepinoutandthe
AdminBrowsermanual.
OpticalFiberUplink/DownlinkConnectors
Theopticalfiberuplink/downlinkporttransmitsandreceivesopticalsignalsbetweenthe
ExpansionHubandtheMainHubusingindustry‐standardSMForMMFcable.Thefiberporthas
twofemaleSC/APCconnectors:
• OpticalFiberUplinkConnect
or—Thisconnector(labeledUPLINK)isusedtotransmit
(output)uplinkopticalsignalstotheMainHub.
• OpticalFiberDownlinkConnector—Thisco
nnector(labeledDOWNLINK)isusedtoreceive
(input)downlinkopticalsignalsfromtheMainHub.
CAUTION!  To avoid damaging the Expansion Hub’s fiber connector ports, use only SC/APC fiber cable
connectors. Additiona lly, use only SC/APC fiber connectors throughout the fiber network,
includingfiberdistributionpan els.Thisiscriticalforensuringsystemperformance.