6Installation - Getting Connected3 Getting ConnectedThe HDX carries a variety of connection sockets on its rear panel. These are illustrated anddescribed in the following diagrams and paragraphs. The numeric legends on the rearpanel diagram refer to the numbered paragraphs in Section 3.2.3.2 HDX Connections3.2.1 Keyboard SocketOptionally connect a PS2 format keyboard here to controlthe HDX in combination with an external display.3.2.2 Mouse SocketOptionally connect a PS2 format mouse here to control theHDX in combination with an external display.3.2.3 VGA InterfaceOptionally connect a VGA format screen here to displaythe HDX External Display Interface.3.2.4 Serial InterfaceFor use if the HDX is to be integrated into an RS232controlled environment.3.2.5 USB Interface SocketsUSB control or audio source devices may be connectedhere. USB source devices can be made available across anetwork.3.2.6 Network SocketConnect to your network router here. The HDX requires aworking internet connection.3.2.7 S-video and Composite Video SocketsConnect an S-video or composite video screen (television)here for display of the HDX External Display Interface.3.2.8 IR Input SocketOptionally connect an RC5 control signal here for localcontrol of the HDX from an IR control repeater.3.2.9 Coax and Optical Digital Audio OutputsS/PDIF digital audio for connection to an audio systemdigital input. These TosLink and BNC outputs duplicate theanalogue outputs.3.2.10 Power Supply UpgradeEnables the connection of an upgrade XPS or 555PS powersupply. The link plug fitted must be removed. See Diagram 3.3.THE SXPS BURNDY CABLE ONLY MUST BE USED TO CONNECTTHE XPS OR 555PS POWER SUPPLIES.Note: Both the HDX and upgrade power supply must beswitched off when the link plug is removed and cableconnections are made.3.2.11 Output SelectorSelects output 1 (DIN), output 2 (phono) or both.3.2.12 DIN Analogue Output (output 1)Analogue output from the HDX for connection to a localaudio system. Use this option if connecting to a Naimsystem.3.2.13 Phono Analogue Output (output 2)Analogue output from the HDX for connection to a localaudio system. Use the DIN option in preference to thePhono option if connecting to a Naim system.3.2.14 Signal GroundOptionally disconnects and “floats” the analogue signalground from the chassis earth. Select chassis unless theHDX is installed in a hi-fi system incorporating anothermains earthed source component or mains “hum” isaudible from the loudspeakers.3.1 HDX Rear Panelmains inputand fusepowerswitch mousesocket3.2.43.2.1keyboardsocket3.2.3 VGAdisplayinterfaceserialinterface3.2.2 networksocket3.2.6USBinterfacesockets3.2.5S-video andcomposite videosockets 3.2.7remote inputsocket3.2.8coax andoptical digitalaudio outputs3.2.93.2.10signal ground3.2.11phono analogueaudio output(output 2)3.2.13power supplyupgrade socket(link plug fitted)DINanalogueaudiooutput(output 1)output selection3.2.143.2.12