LRAD
1950XL
GENASYS INC.
Manual Part No.:114931-00 rev. B
17
Pin 10: +5VDC input
Pin 11: USB -
Pin 12: USB +
Pin 13: USB GND
Note: Audio Input signal level is not to exceed 280mV RMS.
5.4.10 Power/Volume Control
The volume control knob allows the user to power on the amplifiers and to adjust the intensity
or loudness of the acoustic output from the LRAD. Always start broadcasting at a low volume
setting and adjust the volume up as conditions allow.
5.4.11 Control Unit Connector
The MP3 Control Unit input connector is provided for con
nection with the LRAD’s
remote MP3
Control Unit. This connection accepts line-level audio in, control signals and provides power to
the MP3 player. The connector provided is of the following MIL-38999 Type III designation:
D38999/24KB35S
This connector provides thirteen #22 socket contacts. The following figure shows the pinout for
this connector:
Pin 1: Not Used
Pin 2: Analog Audio Input
Pin 3: Analog Audio Input Signal -
Pin 4: DC ground
Pin 5: Drain wire
Pin 6: Not used
Pin 7: Not used
Pin 8: +12-24 VDC out
Pin 9: +10 VDC in to relay
Pin 10: Not Used
Pin 11: Not Used
Pin 12: Not Used
Pin 13: Not Used
Note: Audio Input signal level is not to exceed 280 mV RMS.
5.4.12 Power On Hours Meter
This meter displays the total number of hours that the amplifier module has been powered on.
5.4.13 MP3 Player Control Buttons
Button functions are detailed in section 5.6 of this manual.
Figure 6: LRAD Control Interface
Pinout
