DCT Antares SB, User Manual

Page: 36 / 238

2.1. POWER SUPPLY
•
If the switch disconnects the negative voltage of the vehicle’s
battery, the
Antares SB
TM
power CAN NOT BE TAKEN BE-
FORE THE SWITCH. Doing so will make all of the unit’s con-
nections to ground like panic buttons and its chassis serve as
current path canceling the vehicle’s main power switch thus
making large currents circulate trough the unit. For this config-
uration it is mandatory taking the unit’s power after the switch,
making the unit work with its back-up battery every time the
main power switch is off.
.
When the vehicle uses a switch for the negative line that goes
between the vehicle’s battery and the vehicle’s chassis DO NOT
CONNECT THE UNIT’S GND TO THE BATTERY’S NEGA-
TIVE. This could seriously damage the unit. Connect the unit’s
GND to the vehicle’s chassis (after the switch) so the unit runs
on its optional back-up battery while the switch is off.
Warning:
See the next figures for a better understanding of connecting the
unit when the vehicle uses a main power switch:
34