[. . . ] Installing the SP-41R Number of SP-41R Remotes The SP-41R can be installed in a double-gang electrical box with a Decora®-style faceplate. 10 9 8 7 6 5 4 3 2 1 0 Feet of Cable versus Maximum Number of SP-41R Remotes SP-41R The SP-41R is a real-time remote switch and volume control for use with the SP1200 and SP2400 Program Controller/Amplifiers. [. . . ] There are many factors to be considered when installing professional sound reinforcement systems, including mechanical and electrical considerations, as well as acoustic coverage and performance. Mackie Industrial strongly recommends that this equipment be installed only by a professional sound installer or contractor. 1. Never install, connect, or disconnect the remote control with the SP1200/SP2400 power supply on. Before applying power to the SP-41R, make sure the wiring is correct as described in this Quick-Start Guide. Total Distance Dependent on Type of Cable Used www. mackieindustrial. com 16220 Wood-Red Road NE, Woodinville, WA 98072 USA TEL 888. 337. 7404, FAX 425. 487. 4337, EMAIL industrial@mackie. com UK +44. 1268. 571. 212, FAX +44. 1268. 570. 809 +industrial@rcf-uk. com ITALY +39. 0522. 354. 111, FAX +39. 0522. 926. 208 +industrial@rcf. it FRANCE +33. 3. 8546. 9160, FAX +33. 3. 8546. 9161 +rcf. commercial@wanadoo. fr GERMANY +49. 2572. 96042. 0, FAX +49. 2572. 96042. 10 +industrial@mackie. de Part No. Printed in the USA. Please visit our website at www. mackieindustrial. com for updates and more information on this and other Mackie Industrial products. J2 3 0 3 6 9 15 30 55 GROUND DATA + DATA ­ SP-41R REAR VIEW Front Panel Features SELECT BUTTONS Use to select the input source for the SP1200 or SP2400. These buttons correspond to the buttons on the front panel of the SP1200/SP2400. Due to the cross-fade that occurs when switching input sources, there may be a few seconds delay when attempting to switch quickly between sources. When all the LEDs are off, the OFF button is active and the MIC/ LINE input is selected. [. . . ] Use a high-quality three-conductor shielded cable to make this connection, such as Belden 8451, 9451, or equivalent. GROUND The connector is wired as follows: SP1200/SP2400 1 (Ground) 2 (+ Data with +24V DC power) 3 (­ Data with +24V DC power) SP-41R GND + ­ SP-41R DATA + J2 SP1200/SP2400 REMOTE 1 2 3 REMOTE DATA ­ [. . . ]