User manual ELECTRO-VOICE P900RL

[. . . ] Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped To completely disconnect mains power from this apparatus, the power supply cord must be unplugged. Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and a third grounding prong. [. . . ] For example: if a power amplifier had been switched off using the POWER-switch while being in Standby mode, upon power-on it restarts in this exact mode. This indicator lights when the power amplifier has been switched on. Causes for the POWER-indicator not lighting are: the appliance is not connected to the mains network, a defective primary fuse, or the power amplifier is set to stand-by operation (STAND-BY LED lights). This indicator light when the power amplifier is in stand-by mode, which can be activated from the RCM-24 or via Easy Remote. In stand-by operation only the internal auxiliary power supply unit is activated. The main power supply unit is separated from the mains. The PROTECT LED lights indicating that one of the internal protection circuits against thermal overload, short-circuit, Back-EMF, HF-occurrence at the output, etc. In that case, the output relays separate the power amps from the load connected to prevent the connected loudspeaker systems and the power amplifiers as well from being damaged. In case of thermal overload you have to wait until the power amplifier automatically regains normal operation. The OUT LED lights as soon as an audio signal of approximately 30dB below full modulation is present. The LED is dimmed when speaker cables are short-circuited or a protection circuit has been activated. ) at central operator desks or to other systems (fire alarm system, general alert system) even without PC. For further detail about configuring the control ports, please refer to the documentation accompanying the IRIS software. Communication is established via an easily to implement ASCIIprotocol allowing trouble-free integration of Remote Amplifiers in media and touch panel control systems. The address selection switch allows setting the amplifier's network address, which, within a CAN-network, can range from 01 to 250 (FA hex). Caution: Each address may exist only once within a network. Otherwise network conflicts might occur. Address 0 (00 hex, factory-pre-set) ensures that the amplifier is separated from the remote communication, so that it does not appear in the system set-up even though it might be connected to the CAN-bus. When the amplifier is powered-on with its address set to "0", all internal parameters are set to "0" respectively to bypass and the routing is set to 2-in-2. Each amplifier employs two RJ-45 sockets for Remote CAN-bus connection. The sockets are parallel connected and serve as input as well as for connecting through of the Remote network. Common RJ-45 patch cables can be used for rack-shelf cabling. [. . . ] Connect one of these to the RJ-45 socket of the first and the other to the socket of the last appliance on the CAN-bus. The following diagrams show examples of the data-bus wiring for different order of size: System with 5 amps and one UCC1 / PC at the beginning of the bus Terminators at the UCC1 (first unit on the bus) and at amp 5 (last unit on the bus) System with 2 amp-racks and an UCC1 / PC in the middle Terminators at amp 6 (first unit on the bus) and amp 12 (last unit on the bus) System with several amp-racks and several UCC1 / PCs UCC1s anywhere on the CAN-bus Terminators at amp 10 (first unit on the bus) and amp 16 (last unit on the bus) Next to the CAN-bus signal, network cabling also carries the balanced monitor audio signal for monitoring the power amp inputs and outputs. This monitor-bus allows software-controlled monitoring of the input and output signals of all power amps that are included in the remote network, without the need for additional wiring. The monitor signal is present at the UCC1's XLR-type MONITOR Output connector for further distribution to (e. [. . . ]