Radwin 2000+ SERIES - Figure 4-45 Connections: Hss Via Gps Using an Internal Gps ( for the Radwin 2000 I ); GPS Hub Site Synchronization with an Internal GSU; Lightning Protection; Lightning Protection for RF Cables

RADWIN2000+SeriesUserManual Release4.2.40 4‐32
GPSHubSiteSynchronizationwithanInternalGSU
4.9.4GPSHubSiteSynchronizationwithanInternalGSU
TheRADWIN2000ihasaninternalGPSunitthatenablesittosynchronizewithotherunits
usingaGPSsignal.TheonlyspecialconnectionrequiredinthiscaseiswithaGPSantenna,at
theGPSantennaportoftheunit:
Figure4‐45:Connections:HSSviaGPSusinganinternalGPS(fortheRADWIN2000i)
4.10LightningProtection
Theuseoflightningprotectionisdependentonregulatoryandenduserrequirements.2000+
radiounitshavesurgelimitingcircuitsthatminimizetheriskofdamageduetolightning
strikes.RADWINrecommendstheuseofadditionalsurgearrestordevicestoprotectthe
equipmentfromnearbylightningstrikes.
LightningprotectioniscarriedoutdifferentlyforRFcablesvs.CAT‐5ecables:RFcablesare
connectedtothegroundpointoftheoutdoorradiounit,whereasCAT‐5ecablesusean
additionalLPU(lightningprotectionunit)
4.10.1LightningProtectionforRFCables
ConnecttheRFcablesoftheexternalantennas(ifexternalantennasareused)tothe
groundingpointoftheradiounitusingagroundingkitsuchastheAndrewType223158‐2
(http://www.commscope.com).
GroundtheRFcablestothepole,attachingthegroundingkitascloseaspossibletothe
antenna(seefigure 4‐46,GroundinganExternalAntenna).RADWINrecommendsthatyou
addanadditionalgroundconnectionclosetotheoutdoorradiounit.