Vega AHRS-1 Operating Manual - 10 Operating The Alarms
Vega AHRS-1 / MAG-1 Operating Manual
Page 13
10 Operating the alarms
The alarm output can be used to switch an external alarm indicator. The external alarm switch is an open collector
transistor switch to ground with a maximum rating of 0.5A DC. It is possible to wire the alarm contacts of several
Stratomaster instruments in parallel should this be desired. To avoid false activation of the alarms, the alarm function is
only active 10 seconds after the instrument has powered up.
11 Firmware Upgrading
The AHRS-1 / MAG-1 can be upgraded in the field by connecting the RS232 port to a PC and running the firmware
update program. Note that only the RS232 port can be used to upgrade the firmware.
Please see the Vega firmware upgrading document for more information.
12 Installation
12.1 AHRS-1 / MAG-1 Cable connections
Main connector (D15 connector: Unit Female, Cable Male)
D15 Pin
Color
Function
1
Red
8-30Vdc power via power switch / circuit
breaker and fuse.
2
Black
Ground
3
-
RS232 Transmit data (Firmware upgrading)
4
-
RS232 Receive data (Firmware upgrading /
NMEA GPS Input)
12
Purple
CAN Low
13
Pink
CAN High
15
White
Alarm Output (Open collector)
Note: Please see corresponding SP-X sensor package manuals for more information about the
installation and use of the artificial horizon and compass.