User's Manual

Fan Module Maintenance
FWPP-504-02 FlexWave
®
Prism Remote Unit and RF Module Installation Guide
© May 2017 CommScope, Inc. Page 119
UsethefollowingproceduretoremoveandreplacethePRUFanModule:
1 ReadallinstructionsandproceduresofthissectionpriortobeginningworktoreplaceFanModule.
2 OrderaPrismRemoteUnitFanReplacementKit,catalognumberFWP-RUFAN001.
3 NotifytheNOCoralarmmonitoringsystemoperatorthattheFanModuleisbeingreplaced,whichwill
generatefanandpoweralarmsfortheaffectedPRU.
4 PowerdownthePRUandwaituntilthefansspindowntoastop.
5 PutonanESDwriststrapandensurethatitmakesmaximumcontactwithbareskinthroughoutthis
procedure.ESDgroundingstrapsareavailablewithbananaplugs,metalspringclips,oralligatorclips.To
ensureadequategrounding,theESDwriststrapshouldbeconnectedtoanybaremetalsurfaceofthePRU
chassis,ortotheDual-GroundConnectoratthebottomoftheunit.Forfurtherinformationonthe
Dual-GroundConnector,see
"PortsandConnectors”onpage7.
NOTE: It may be necessary to scrape a small section of the coating off the Prism Remote Unit chassis to ensure
connection to a bare metal surface.
6 LoosenthetwoscrewsthatsecuretheFanModule
CoveratthetopofthePRUchassistothefrontofthe
enclosureasshowninthegraphictotheright.
7 Openthefancoverbyrotatingitupandbackonits
hinges.
8 DothefollowingbeforeyoulifttheFanModuleoutof
thePRUchassis:
a Inspect,cleananddrythetopsurfacesurrounding
thefanconnector.
b LoosenthetwocaptivescrewsthatsecuretheFan
ModuletothePRUchassis.
c DisconnecttheFanModulepowercablebyrotating
itscouplingnutcounter-clockwiseuntilthe
receptaclecanbeliftedoffitsbulkheadplug.
Two capve screws
Top of Prism Remote Unit