7ENGLISHFRANÇAISDEUTSCHNEDERLANDSESPAÑOLITALIANOPORTUGUÊSSVENSKA1 IR IN Jack2 DIGITAL OUT COAXIAL Jack3 DIGITAL OUT OPTICAL jack4 MIXED AUDIO OUT (L & R) Jacks5 5.1 CH AUDIO OUT FRONT L & R Jacks6 5.1 CH AUDIO OUT CENTER and SUBW (Subwoofer) Jacks7 5.1 CH AUDIO OUT SURR (Surround Sound) L & R Jacks8 S-VIDEO & Composite VIDEO OUT Jacks (480i/576i videoresolutions)9 COMPONENT VIDEO OUT Jacks (480i/576i or 480p/576p, videoresolutions)10 HDMI OUT Jack (480p or 576p video resolutions)11 VGA OUT Jack (480p/576p, 720p, and 1080i video resolutions)12 AUTO TRIGGER ON/OFF Switch13 +12V TRIGGER IN jack14 Power cord socket15 POWER ON/OFF16 RS 232 In/Out JackREAR PANEL (NORTH AMERICAN VERSION)Identification of ControlsNOTESConnect the optical digital cable (not supplied) firmly so that the configurations of both the cable and the connector match.The +12V TRIGGER IN jack is a 3.5mm monotype miniature phone jack with the centre pin the 12V signal-sense. We recommend that you usea good quality cable with shield when attaching the 3.5mm monotype plug so as to prevent false triggering of the amplifier due to electro-magnetic interference from nearby electronic equipment. The +12V-IN TRIGGER allows you to have an external 12V signal to turn ON the NADM55 from standby. This 12V signal must be a continuous 12V signal in order to keep the M55 in the ON state. Once you remove the 12V signalthe M55 will return to standby. Check the specifications of the trigger input terminal the other components to ensure these are compatible withthe M55. All 12V-TRIGGER inputs and outputs on other NAD components with a 12V-TRIGGER feature are fully compatible with the NAD M55’s12V-TRIGGER IN. Before making any connections to any 12V-TRIGGER IN make sure all components are disconnected from the AC mains. If indoubt over the connections, installation and/or operation of the 12V-TRIGGER IN connection, consult your NAD dealer or sales representative.Failure to observe the above may result in damage to the NAD M55 and/or any ancillary components attached to it.The IR IN jack is connected to the output of an IR (infrared) repeater (Xantech or similar), or the IR output of another component to allow controlof the M55 from a remote location. Ask your dealer or custom installer for further details