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rev 2020.04.17
Page 4 of 6
installation guide
Vecima 66xxH Beacon Family
Auxiliary Input
•
The auxiliary inputs can be used to detect and report the opening and/or closing of a circuit. There are four auxiliary inputs
available on the 66xxH beacon models, as indicated in the wiring diagram on the previous page. Note that a minimum
voltage of 8V is required to trigger any input.
•
Auxiliary inputs 1 and 2 are considered to be closed when connected to a vehicle power source and are considered to be
open when connected to ground or an open circuit. Auxiliary inputs 3 and 4 are considered to be closed when connected to
ground and are considered to be open when connected to a vehicle power source or an open circuit.
•
When using auxiliary inputs to measure the state of vehicle circuits, it is recommended that you use a relay to control the
input signal to the device.
Pin Wire Color
Description
Pin Wire Color
Description
1
Black
GND
11
White
Switch 2 input (+)
2
Yellow
Relay 2 output (-) [Buzzer Control]
12
CAN/J1939 Hi [not used]
3
Green
J1708- [not used]
13
Red/White
Switch 4 input (-)
4
Orange
J1708+ [not used]
14
CAN/J1939 Lo [not used]
5
Blue
Switch 3 input (-)
15
White (bundle)
Ignition input (+)
6
Gray
1-Wire data [Driver ID, Sensor]
16
Brown/White
Relay 1 output (-)
7
Cable ID [not used]
17
[not used]
8
Red (bundle)
Power input (+8 to +30v constant)
18
Green/Yellow
Switch 1 input (+)
9
[not used]
19
Purple
LED Control [Driver ID]
10
Black (bundle)
Ground
20
Brown
Analog input (0 – 16v) [not used]
20-pin Molex Connector – Pin Descriptions
Nero 66xxH Beacons – Cable Connectors
Model 6651
shown here
