Bolymin BETA903A, User Manual, Page: 27 / 95

BETA903A USER MANUAL - 27 -
2.7. Connect Power
The operating voltage of BETA903A ranges from 9 to 28 volt and no more than 1.5A current.
Connect pin 1 and 13 to the positive contact of 12/24v car battery, and pin 2 and 14 to the
negative. As colored blue, connect Pin 3 to a car switch (a single-throw switch as indicated)
and the other end of switch to positive end of car battery.
After power connection is done, switch on BETA903A to boot up.
Switch
Fuse
Note:
A quick troubleshooting hint – If BETA903A does not boot up as expected, please check if the
fuse (with black housing) on the power and I/O ports are broken. If yes, replace them with
5*20mm / 1.5A/ 250V fuses. Otherwise, return the BETA903A module for repair.