Velodyne Acoustics SC-1250. - Manual (Page 13)

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SubContractor User’s Manual
(11) Balanced XLR LFE Input (See Figure 4)
This XLR input jack receives the balanced LFE signal from your receiver or processor.
Figure 4: Balanced Line-Level Connection.
(12) Mic Input
Connect the supplied microphone for the Auto-EQ feature to this mini-jack.
(13) IR Input
Connect an IR repeater to this jack for use with universal remote systems.
(14) 12V Trigger
When this mini jack is connected, the unit remains in power-off mode until 12 volts is
supplied across the two leads. Polarity is irrelevant.
(15) RS-232 In
Use this port to communicate with a touch panel remote control. See Appendix A for an
explanation of the use of the serial port, available commands, and their formats.