User manual QSC AUDIO IT-8400 INSTALLATION

[. . . ] In the event that a provision of this limited warranty is void, prohibited or superseded by local laws, the remaining provisions shall remain in effect. To obtain the most recent version of QSC's warranty statement, please visit www. qscaudio. com. Contact us at 800-854-4079 or visit our website at www. qscaudio. com. The QSC limited warranty is valid for a period of three (3) years from date of purchase in the United States and many (but not all) other countries. [. . . ] If you are using more than one IT-8400 in the same rack, separate them by at least one rack space to minimize crosstalk. CAUTION: Turn off the amplifiers before wiring up the accessory. EN 4 Configuration Each channel of the IT-8400 is factory set to the 100 volt configuration. To change the configuration for any channel, access the wire connections on the back side of the panel. Make changes to the wiring configuration before installing the accessory into the rack. The center section of printed circuit board contains text that identifies the channel numbers and terminal voltages alongside the associated wire connection points. Use these as a guide to wire configuration. Also refer to the figures below. 100 VOLT LINE Connect the blue wire to the terminal marked 0V. Connect the yellow wire to the terminal marked 70/100V. Connect the orange wire to the terminal marked NOT USED. 70 VOLT LINE Connect the blue wire to the terminal marked 0V. Connect the orange wire to the terminal marked 70/100V. Connect the yellow wire to the terminal marked NOT USED. EN 25 VOLT LINE Connect the orange wire to the terminal marked 0V. Connect the yellow wire to the terminal marked 70/100V. Connect the blue wire to the terminal marked NOT USED. Amplifier settings: To minimize transformer saturation, use the amplifier's 75 Hz input filters. We also recommend using the clip limiters in most applications. See the CX302 user's manual for instructions on configuring filters and clip limiters. B = Blue O = Orange Y = Yellow Connecting the amplifier to the IT-8400 accessory Turn off the amplifier before opening the safety shroud over the output barrier strip or making any changes to the output connections. Always close the safety shroud when you finish working on the output connections and before turning the amplifier on. Use fully insulated wiring that conforms with local and national electrical and safety codes. Class 2 wiring for this application is specified by the 1999 National Electrical Code, which is prevalent in the United States. Four terminal block plugs are provided with the IT-8400. These plugs are made to accept wire sizes from 24 AWG (0. 2 mm2) to 10 AWG (6 mm2). Note: Use wiring suitable for a Class 2 circuit. 3/8" - 1/2" Prepare the wires for the terminal block by removing 3/8" to 1/2" (9. 5 mm to 12. 7 mm) of insulation. [. . . ] The transformer wiring must be configured for 25V on each channel prior to connection to 25V distribution lines. Use the large terminal block plugs provided. The plugs install into the accessory with the terminal screws oriented down. The plugs for the distributed lines are installed into the connectors labeled OUTPUT TO SPEAKERS. [. . . ]