8
VISION 2460 INSTALL GUIDE
4-wire harness
PUR
(+) 12V Output
WHT/BLK
(–) Back Door Input
OPTIONAL
300mA
This wire is a general purpose 12V power output for automotive devices
that cannot use 24v. The Purple wire is commonly used to power optional
12V devices that are ground-controlled with the 2460’s GWA Output (see
YEL wire on page 12) or ground-controlled by the YEL/BLK Starter Kill
Output (see left).
(You can also use the Purple wire to power your own 12V
relays, but we strongly recommend you add a voltage spike supression diode
across your relay coil.)
The Purple wire can supply current up to 900mA,
but such high current loads should only be used for short durations of
sev-
eral
minutes
to avoid excessively heating the power supply. If you intend
to use the Purple wire to power 12V devices while driving, please ensure
the
average
current draw of all your attached 12V devices is 300mA or less
to keep the 2460’s switching power supply running cool. High current loads
of more than 1A cause the Purple wire’s voltage to drop, and the 2460 may
power-down until you remove the load.
This input detects if the back door or hatch of a truck is opened. It can also
be used on 24V vehicles that have a trunk. If the back door opens while the
2460 is Armed, the siren will blast for 30 seconds or until Disarmed. Vehi-
cles with factory keyless control can easily Disarm after Back Door triggers
by simply pressing Unlock. The back door switch you use must be open-
circuit (no ground) when the door is closed. Note that you may need to run
a wire all the way to the back door and possibly need to also add a switch.
BACK DOOR
LIGHT (if any)
BACK DOOR
SWITCH
(GND when closed)
+24 v BATTERY
FIG-3:
(–) Back Door Input
WHT/BLK
3-wire harness
