DSAT-300 USER GUIDE
26
Document Rev. 1.015
DOC0594
Page 26 of 28
Restricted Proprietary and Confidential Information
15.1 POWER CONNECTOR
View of DSAT-300 power interface
15.1.1
PINS
PIN #
CONNECTION
1+3
Positive (+) Aircraft power (nominal 12V/28V)
2
Short to ground (Pin 5/A1) to keep unit in charge mode only (no position reports) when powered through
power connector
4
Short to ground (Pin 5/A1) to reset unit to factory default (normally not connected)
5/A1
Ground (Aircraft power return)
15.1.1 External Emergency Switch
Emergency Mode can be controlled through an external switch by simultaneously shorting pins 2 and 4 to ground
(Pin 5/A1). This can be accomplished by using a SPST or SPDT switch, similar to the wiring diagram below.
Firmware for the Emergency Switch featu
re must be 04.02 or greater. Users can “QUERY” the unit in the
Hardware Management section of SkyWeb to determine the current firmware version.
Figure 15 1 Example External Emergency Switch Wiring
NOTE:
When wired as shown above, other functions controlled by pins 2 or 4 cannot be initiated. To use these
functions, a separate wiring harness may be required.
1
2
4
3
5/A
1
