TB0349A
Page 6 of 12
09/22/05
+VDC Switching examples
Must cut AUX P option resistor
HORN
RING
SWITCH
+VDC
AUX
SPLIC E
HORN
RING
SWITCH
+VDC
AUX (Add re sistor to GND)
Added
SPDT
Switc h
HORN
HORN
-VDC
switching
example
MOMENTARY
FOOT
SWITCH
AUX
ADDED RESISTOR FOR
POSITIVE SWITCHING
S
P
KR
→
S
P
KR
→
PO
S
→
PO
S
→
RA
D
→
RA
D
→
AU
X
→
CU
T
→
NE
G
→
NE
G
→
• • • • • • • • • •
Added r esistor to GND
1K @ 1/4 watt
-VDC
switching
example
ADDED
DOOR
SWITCH
CUT
+VDC Switching
Example
Must cut CUT P option resistor
DOOR
SWITCH
+VDC
CUT
SPLIC E
DOME
LIGHT
Auxiliary Input Connection
- The Auxiliary
Input allows activation by an external source
of either the Horn or Man/Phsr function. The
adjacent diagram shows three connection
examples. See the INSTALLER-
SELECTABLE OPTIONS section for
programming details.
If positive switching is used for the auxiliary
(AUX) Input and the connection to the
destination device (horn) is removed a
resistor (1 supplied) must be added between
the AUX input and ground for proper
operation. A symptom of this problem is
continual activation of the auxiliary function
when the horn ring is not pressed.
NOTE: Permanent disconnection of the
vehicle horn is NOT recommended.
Cutout Input Connection
- The Cutout Input turns off any
siren tone output when activated, and remains off until a control
is activated or changed. The adjacent diagram shows two
connection examples. See the INSTALLER-SELECTABLE
OPTIONS section for programming details.
