CABLING

NF-VERBINDUNGSKABEL

Choosing balanced cables (two conductors for the audio signal plus separate shielding mesh) with XLR-type connectors is recommended for LF-signal connection. Although connecting unbalanced cables to the power amplifier inputs is possible as well, using balanced cabling is always preferable. A great number of today’s audio appliances employ balanced outputs. With balanced cabling, the shield connects all metal enclosure parts and thus efficiently eliminates the introduction of noise and hum

XLR-type connector pin-assignment

XLR (male)

XLR (female)

REMOTE CONTROL NETWORK

The network of the remote power amps is based on the CAN-bus standard, which for years is especially popular in automotive, industrial and security applications. The CAN-bus is a balanced serial interface for command and data transmission. Controlling the power amplifiers is performed from a PC with IRIS – Intelligent Remote & Integrated Supervision – software installed. The UCC1 USB-CAN Converter serves as interface between the PC and the CAN-bus. Connecting up to 100 power amplifiers per CAN-Bus with a maximum total cable length of 1,000 meters is possible. An additional CAN-bus is needed for controlling more than 100 power amps while the IRIS software allows administering a total of 250 power amps.

The network topology used by the CAN-bus is based on the so-called “bus or line topology”, i.e. all participants are connected via a single two-wire cable (Twisted-Pair cable, shielded or unshielded) with the cabling running from one participant on the bus to the next, allowing unlimited communication among all appliances. In general, it does not matter whether a participant on the bus is a power

amplifier or an UCC1 USB-CAN converter, so that both – UCC1 and the PC as well

– can be inserted at any position.

Incorporating several UCC1 and PCs

on a single CAN-bus is also possible.

A total of up to 100 appliances can be operated on a single CAN-bus. Since the CAN-interfaces of all appliances are

galvanically separated from the rest of the circuitry, network cabling also carries a common ground conductor (CAN_GND) ensuring that all CAN-interfaces in the network are connected to a common ground potential. The UCC1 provides the possibility for switching the CAN-ground to circuit-ground.

Each participant on the bus system has two RJ-45 connectors for the Remote CAN-bus. These sockets are connected in parallel to serve as input and output (for connecting through) for the data transfer within the remote-network. The CAN-bus has to be terminated at both ends using 120Ω terminator plugs, two of which – CAN-TERM 120 Ω – are supplied with the UCC1. 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

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Electro-Voice P900RL, P1200RL owner manual Cabling, Nf-Verbindungskabel, Remote Control Network
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P1200RL, P900RL specifications

Electro-Voice P900RL and P1200RL are high-performance power amplifiers designed for various audio applications, including live sound reinforcement, installations, and studio settings. These amplifiers stand out in the market due to their innovative technologies and robust features, making them suitable for both professional audio engineers and audio enthusiasts.

The P900RL model delivers a powerful 900 watts per channel at 4 ohms, while the P1200RL offers an even more impressive output of 1200 watts per channel at the same impedance. This significant power enables these amplifiers to drive a wide range of loudspeakers proficiently, ensuring clean and dynamic sound reproduction with minimal distortion.

One of the key features of the P900RL and P1200RL is their efficient Class H topology. This technology improves energy efficiency by maintaining high power output with less heat. Class H amplifiers dynamically adjust their power supply voltage according to the input signal, resulting in reduced power consumption and increased longevity of the components. This makes the P series amplifiers not only powerful but also environmentally friendly.

Both models come equipped with a built-in limiter and comprehensive protection circuitry to prevent damage from overheating, short circuits, and overloading, ensuring safety and reliability in demanding environments. Additionally, the amplifiers feature a tri-mode operation, enabling them to be configured for stereo, parallel, or bridged mono setups, providing versatility for various audio applications.

The P900RL and P1200RL also include advanced signal processing capabilities, including a variable low pass filter for enhanced sound control and clarity. The integrated cooling system maintains optimal operating temperatures, allowing for extended use without the risk of thermal issues.

Audio connectivity is straightforward with both XLR and ΒΌ-inch TRS inputs, allowing the amplifiers to interface with a variety of audio sources. The professional-grade output connectors ensure secure and reliable connections to speakers, critical for live sound applications.

In conclusion, the Electro-Voice P900RL and P1200RL amplifiers offer a compelling combination of power, efficiency, and versatility. With their advanced technologies and protective features, they cater to the demanding needs of sound professionals while delivering high-quality audio performance suitable for any occasion.
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