External Power Supply User's Manual 1
Contents 1 Preface ........................................................................................3 1.1 Included.........................................................................................3 1.2 Transport .......................................................................................3 2 Overview front panel ...............................................................4 3 Overview back panel ...............................................................
1 Preface The Audionet-Team would like to congratulate you for purchasing the Audionet EPX! Surely you are a satisfied owner of an Audionet device. With the external power supply EPX you have the possibility to provide all connected units a more sophisticated foundation. Please read this manual before first use to make sure that you are able to use all provided functions of your new unit. In case of occurring questions, please do not hesitate to contact your local Audionet dealer or our factory directly.
Overview front panel LED (power indicator) 2 4
1 2 3 5 Mains switch Mains input Marking mains phase 7-pin connector 1 2 3 4 4 3 Overview back panel
4 Installation and connection Important • For connecting the EPX to or removing from the mother unit, the EPX and the mother unit must be switched off to prevent damage from both devices. • Please make sure that all cables are in absolute best conditions! Broken shields or shorted cables could damage both devices. 4.1 Placement Important • • • • • • • Place the EPX right beside or at least 20 cm above/below of the mother unit.
Important • • • The electrical specifications of your home country must meet the electrical specifications printed onto the back panel. The EPX is a Class I unit and must be earthed. Please ensure a stable earth connection. The Phase ('hot' pin) is marked 'PHASE' on the back panel for the mains input. Never pull the mains plug while the EPX is switched on! Before you pull the mains cord off the socket, power down the unit to stand-by mode.
5 Usage 5.1 Powering up First of all, please make sure your EPX is connected correctly to the mother unit and the mains (see section 'Mains connection' on page 6 and 'Connecting the mother unit' on page 7). The EPX is a stand by unit. Please operate the mains switch 1 on the back panel to put the EPX in stand by mode. Only in cases of extended absence (like vacations) or if massive trouble on the mains power is to be expected (e.g. thunder storms) it is recommended to disconnect the EPX from the mains.
5.3 Mains phase detection The EPX is able to detect the correct polarization of the mains plug. After pressing the power key on the front panel of the mother unit, the speed of the LED flashing indicates the polarization of the mains plug. • If the polarization is correct, the LED flashes slowly: ⊗___⊗___⊗ If you see the LED flashing rapidly ⊗_⊗_⊗_⊗_⊗ ... please switch off the unit and flip the mains plug.
7 Technical Information Your EPX provides the mother unit with ideal operating conditions. The popular usage of accumulators shows the following serious disadvantage: The output voltage is not short term stable: The internal impedance is 10 times worse than the one of your EPX causing an output ripple voltage 10 times in magnitude at the same load condition.
8 Security advice Important • Avoid packaging material, especially plastic bags, coming into children's hands! • Store and operate the unit in a dry room at a reasonable room temperature only! • Avoid moisture, any liquids, dirt or small objects getting into the unit! • Set up the unit in a sufficiently ventilated environment! • Do not cover the unit! • Do not open the unit.
9 Technical data Type ultra low noise, highly stable and constant power supply for EPS/EPX compatible Audionet units Power supply two encapsulated 200 VA toroidal transformers and 576.000 µF capacitance Circuitry reference voltage sources for pos. and neg. analog voltages using discrete Audionet voltage regulators (MOS) Connections 7-pin socket for connecting the mother unit Output voltage ±24.00 V for analog sections, +5V for digital and control sections Stability ±0.
