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Board Features
VL-EPU-3311 Reference Manual
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Figure 10. VL-CBR-0203 Latching Battery Module
External Speaker
The User I/O connector (shown in Figure 19 on page 37) includes a speaker output signal at pin
15. The VL-CBR-4005B paddleboard provides a piezoelectric speaker. Figure 26 on page 50
shows the location of the piezoelectric speaker on the VL-CBR-4005B paddleboard.
Push-button Reset
The User I/O connector (shown in Figure 19 on page 37) includes an input for a push-button
reset switch. Shorting pin 18 to ground causes the Osprey to reboot. This must be a mechanical
switch or an open-collector or open-drain active switch with less than a 0.5V low-level input
when the current is 1 mA. There must be no pull-up resistor on this signal. This connector uses
IEC 61000-4-2-rated TVS components to help protect against ESD damage.
A reset button is provided on the VL-CBR-4005B paddleboard. Refer to Chapter 6, VL-CBR-
4005B Paddleboard, beginning on page 50 for more information.