Rane HAL1x Design Guide - Page 47

CHAPTER 2: Introduction to the HAL System Discontinued RAD Models The following RAD models are no longer in production. For the most current list of RAD models, see the Rane website. Data Sheets for discontinued models may also be downloaded from the Rane website. RAD24 This device adds the following additional capability to a HAL system: A RAD24 provides one audio output channel that is a one-watt plenum-rated class-D amplifier which directly drives an 8-Ohm loudspeaker. It installs in a U.S. 4-square gang box, or the flanges can be removed and the RAD can be mounted to a ceiling loudspeaker's 70/100 mounting holes (replacing the transformer) or to another flat surface. Digital Remote Devices The Halogen software gives you microscopic control over almost every aspect of your audio system. This detailed control is great for the system designer, but not so great for end users who simply want to turn up the volume. The last thing they want to do is open a software program! Digital Remote (DR) hardware devices, a variety of which are available for your HAL System, provide system users with easy control of volume, audio selection, preset activation, and more-out in the locations where the control is needed. A huge advantage of these DR devices is their plug-and-play nature. When you connect a DR to the system, HAL automatically discovers and addresses it. In addition, just as with RADs, DRs use point-to-point wiring which eliminates problems of cable length, termination, and addressing. Troubleshooting time is also reduced because of DR status indicators on the HAL that immediately report the DR wiring status. And, finally, designers can test remote operation with or without the actual hardware. This offline testing is possible because of the Halogen software representation of each remote in the system. DRs connect to the HAL via DR ports, which are basically the same as RAD ports but with no audio. In other words, the DR ports provide a communications link and power, but no AES31 digital audio. Because RAD ports contain all the functionality needed by a DR, you can also connect DRs to RAD ports (if, for example, all your DR ports are full and you have a RAD port available). The opposite is not true, however. You cannot connect a RAD to a DR port. Some DR models (DR2, DR3, DR4, DR5 and DR6) can behave in a variety of ways. You use the Halogen software to configure their behavior. You can also enable and disable the individual controls on a DR (both manually, via control links to other remotes, and through the use of presets). For details, see the Halogen Help System. 1A standard from the Audio Engineering Society used for the transport of digital audio signals between professional audio devices. 43