December, 2010 181 Bonetti Drive San Luis Obispo, CA 93401 ph: 805-549-0161 fax: 805-549-0163 e-mail:usl@uslinc.
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-9- -2- WARNING To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
-3- 3. Signal Presence Indicator. Indicates proper audio level when light blinks at the peaks of the sound. 2. Input Range Selector. With both switches in the upper position, the audio channel input level range is 0.1 to 1.0 Vrms. With both switches in the lower position, the input range is from 2 to 20 Vrms (suitable for speaker amplifier output levels). 1. Main Connector; consisting of the following: a. Pins 1 & 2: DC Power Input Terminals.
-7- -4- One IRH-501 or IRH-701 receiver. Tools and hardware to attach the mounting bracket to the wall If the cord on the IRP-20 power supply is not long enough, you will need additional #18 AWG or larger two or three conductor cable to extend the DC output cable. If three conductor cable is used, the third conductor can make the safety ground connection Shielded, two conductor audio cable for connection of the IRC-21 to the program source.
Connect the power supply to an AC outlet (100 - 240VAC, 50/60Hz) using the supplied or a standard IEC power cord. DO NOT SHORT THE POWER SUPPLY! Connect the provided IRP-20 DC power supply to the IRC21 power input terminals (1 and 2). If the DC supply cable needs to be extended, refer to table 1 for suggested wire sizes. Make sure there are no loose wire strands at the terminals to avoid potential short circuits.
