Clipsal StarServe - Installation Guide, 11635

SECTION 5Video Distribution - How to ConnectAntenna Input – Using an amplifi er with the Clipsal StarServe ® VDUIf you are using an amplifi er with Clipsal StarServe ® Video Distribution you must follow these strict requirementsotherwise you may cause damage to the VDU.A DC block must be used on the antenna input to the VDU. This will stop any power being supplied to the VDU thatcan cause damage to the VDU. The Masthead amplifi er must be powered before the connection to the DC block.Mastheadamplifi erMasthead amplifi erpower supplyAmplifi erT-Piece413QC QuickConnect SocketDC Block - 8000DCBSignal strength to bebetween 69 - 89dBuVNote: If the incoming signalstrength is too high then a droptap may be used to attenuate thesignal strength to achieve thedesired level 69 – 89dBuV.Step 1Measure the incoming signal from the amplifi er. If the signal is between 69 - 89dBuV, you can connect to the ClipsalStarServe ® VDU via the antenna input.If the signal strength is over 89dBuV, you will have to attenuate the signal via a drop tap.Step 2Measure the signal strength from the VDU output. Adjust the variable gain control until you reach 72dBuV.INSTALLATION GUIDE41