User manual SENNHEISER AC 3

[. . . ] 14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Manufacturer Declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Thank you for choosing Sennheiser! [. . . ] Do not fasten the stacking elements when mounting the AC 3 into a 19" rack (see page 9). To fasten the stacking elements ¾: ¾ Unscrew and remove the two recessed head screws (M4x8) on each side of the AC 3. Secure the stacking elements ¾ to the sides of the AC 3 using the previously removed recessed head screws (see diagram). 7 Putting the AC 3 into operation Stacking You can stack several AC 3 and the connected transmitters on several devices top of each other. Danger of injury due to toppling stacks!Place the stack on an absolutely flat surface. Secure the stack against toppling over. Stack the devices so that the recesses of the stacking elements completely engage with each other. Fitting the device feet If you want to stack the AC 3, only fit the device feet to the base of the lowermost device. Do not fit the device feet when mounting the AC 3 into a 19" rack. The device feet are fitted to the base of the AC 3 (see diagram). Clean the base of the AC 3 where you want to fix the device feet. Fix the device feet to the base of the AC 3 by peeling off the backing paper and fitting them as shown on the left. Place the AC 3 on a flat, horizontal surface. Please note that the device feet can leave stains on delicate surfaces! 8 Putting the AC 3 into operation Mounting the AC 3 into a 19" rack CAUTION!When installing the device in a closed or multi-rack assembly, please consider that, during operation, the ambient temperature, the mechanical loading and the electrical potentials will be different from those of devices which are not mounted into a rack. The ambient temperature within the rack must not exceed the temperature limit specified in the specifications. Ensure sufficient ventilation; if necessary, provide additional ventilation. Make sure that the mechanical loading of the rack is even. When connecting to the power supply, observe the information indicated on the NT 3-1 table top power supply. If necessary, provide overcurrent protection. When rack mounting, please note that intrinsically harmless leakage currents of the individual power supplies may accumulate, thereby exceeding the allowable limit value. As a remedy, ground the rack via an additional ground connection. Rack mounting one AC 3 Secure the rack mount "ears" µ (supplied with the optional GA 3 rack adapter) to the AC 3 in the same way as described for the stacking elements (see page 7). [. . . ] 30 mW per input 50 13. 8 V DC (with NT 3-1 table top power supply) max. 3. 4 A (with connected transmitters) 11. 4 V (protected from reverse feed), 350 mA 5 to 95% ­10°C to +55°C ­20°C to +70°C approx. 1470 g Total current consumption Supply voltage for transmitters at RF IN 1 to RF IN 4 Relative humidity Operating temperature range Storage temperature range Dimensions of housing Weight Type approvals In complicance with EMC EN 301489-1/-9 Radio EN 300422-1/-2 Safety EN 60065 Industry Canada RSS 210, IC: 2099A-AC3, limited to 806 MHz 47 CFR Part 74 FCC-ID: DMOAC3, limited to 698 MHz Approved by Canada USA 16 Manufacturer Declarations Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. KG gives a warranty of 24 months on this product. [. . . ]