User manual ELECTRO-VOICE P900RT

[. . . ] The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated , , dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Do not use this apparatus near water. Do not expose this apparatus to dripping or splahing and ensure that no objects filled with liquids, such as vases, are placed on this apparatus. Do not block any of the ventilation openings. install in accordance with the anufactures instructions. [. . . ] The 0dB LED lights when the power amplifier is driven at its maximum. Higher input voltage does not result in higher peak output voltage. This indicator lights as soon as the integrated dynamic limiter is activated and the power amplifier is driven at the clipping limit or generally at its maximum capacity. Short-term blinking is not a problem, since the internal limiter trims input levels of up to +21dBu down to a S/N-ratio of approximately 1%. If, on the other hand, this LED lights constantly, reducing the volume is recommended to prevent the loudspeaker systems connected from being damaged by probable overload. Connection can be established via the XLR-type input connectors or the supplied screw-on connectors, which are connected in parallel. Connection can be established via the XLR-type input connectors INPUT A / INPUT B or the supplied screw-on connectors which are connected in parallel. In addition, using the PARALLEL-connectors provides the possibility for connecting the input signal through to feed additional power amplifiers, without the need for extra splitter-cables. The DSP output signal is simultaneously fed to the power amplifier output stage and is correspondingly amplified present at the power amp's main outputs. The DSP OUT can be utilized for feeding the digitally processed audio signal from the RCM-24 Remote Control Module to additional power amplifiers (without DSP-module); e. With a nominal level of +6dBu and a maximum level of +21dBu (8. The CONTROL PORT offers two freely programmable control inputs and control outputs as well as the reference connections for ground potential and +5V. Using the PC Windows software IRIS, the control inputs can be configured and serve for instance for Power-On / Stand-by switching, preset switching or parameter control. The two control contacts IN1 / IN2 are internally set to +5V (open) via pull-up resistors. activating the control inputs is possible by closing the contacts to ground potential (pin 3) via external switches , pushbuttons or relays. The two control outputs OUT1 / OUT2 are carried out as Open Collector Outputs. 55V) while the maximum output level is +21dBu (8. When the power amplifier's address is set to "00" so that it is separated from the CANbus, the STATUS LED blinks every 3 seconds. As soon as CAN-bus communication is recognized, the LED is activated for at least 100ms whenever the power amplifier actively sends data on the CAN-bus. The STATUS LED may also be activated from the PC. In this case, the LED of the according power amplifier blinks fast and steady while all other statusLEDs within the system stay dimmed. Easy Remote provides a simple way to remotely power-on/off the power amplifier. [. . . ] 5 kbit/s 20 kbit/s 10 kbit/s Bus Length 100 m 250 m 500 m 1000 m 2500 m 5000 m The CAN-bus allows using different data rates, with the data rate being indirectly proportional to the bus length. Small net works allow baud rates up to 500kbit/s. According to the ISO 11898-2 standard, CAN-bus data transfer cabling has to be carried out using Twisted-Pair cables with or without shielding providing a characteristic impedance of 120. Both ends of a CAN-bus need to be terminated with 120 termination-plugs. [. . . ]