PowerH SERIES
4 Options
Installing one of the optionally available extension modules in the extension slot on the rear panel lets you expand the power amp’s functional range. As an example, the following paragraphs describe all aspects of the RCM-26 Remote Control Module in detail. Please read and follow the instructions provided in the owner’s manuals that you have received together with each extension module.
4.1 RCM-26
System Description
The RCM-26 Remote Control Module is a two-channel digital controller module for live sound reinforcement, PA and fixed installation applications. Installing the RCM-26 turns a conventional amp into a remote amplifier, which, at any time, provides complete overview of the overall system status and control of all system parameters.
RCM-26 modules allow the integration of PowerH amplifiers into a remote control network with up to 250 units. This offers the possibility to control and monitor an entire PA system from one or more PCs using the IRIS-Net™ - Intelligent Remote & Integrated Supervision - software package. All operational states, e.g. power-on status, temperature, modulation, limiting, activation of protections, deviation from the load impedance, etc., are centrally registered and displayed in IRIS-Net™. This provides the possibility to react and to selectively intervene even before critical operational states arise. Programming an automatic reaction, when specific thresholds are being exceeded or fallen below, is also possible.
With an RCM-26 installed, the integrated impedance testing function allows very precise monitoring of the connected loudspeaker systems. The impedance testing function utilizes the internal test tone signal generator and voltage/current measuring to determine the impedance of the loudspeaker systems including crossovers and cables over the entire frequency range. IRIS-Net™ plots an impedance curve of the measured impedance that can be compared with a formerly stored reference curve at any time. This reveals even smallest loudspeaker defects or deficiencies instantly. The impedance testing function is optimized for low impedance loads, like typical loudspeaker cabinets and/or loudspeaker components.
All parameters, like power on/off, level, muting, filters, etc. can be controlled in real-time and stored in the amplifier. Besides controlling and monitoring amplifiers, the RCM-26 also offers all conventional signal processing functions, like parametric equalizers, frequency crossovers, delays, compressors and limiters. Beyond that, linear-phase FIR-filters, zero-latency FIR-filters and digital speaker protection algorithms are available to optimize the amplifiers and loudspeaker system. All DSP-settings can be freely edited and stored in user presets directly on the module. In the event of network failure or loss of power, all settings (filters, delay, level, etc.) stay intact, independent of the control by the network.
Furthermore, the RCM-26 provides a control port with freely programmable control inputs and control outputs. Control inputs (GPI's) allow the connection of switches. IRIS-Net™ offers the possibility to program a variety of logic functions for the inputs (e.g. switching to an alarm-preset with maximum energy in the speech area). Control outputs (GPO's) allow the connection of external components, which, for example, are used to signal specific states to peripheral equipment. Consequently, an amplifier with a RCM-26 module installed corresponds to highest safety requirements.
The RCM-26 has been designed with uncompromising audio quality in mind. Analog audio inputs (internally) and an AES3 (AES/EBU) digital audio input with XLR-type connector are provided. The use of
