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Pin Wire Color
Description
1
Black
GND
Relay 2 output (-) [
2
Yellow
Buzzer Control]
3
Blue (J1939 cable)
J1708-
4
Orange (J1939 cable) J1708+
5
Blue
Switch 3 input (-)
6
Gray
1-Wire data [Driver ID, Sensor] 16 Brown/White
7
Cable ID
Power input (+8 to +30v
8
Red (J1939 cable)
constant)
9
[not used]
10 Black (J1939 cable)
Ground
LED Indicators
The 66xx has two LEDs on the top of the device which provide feedback about the current state.
• When the ignition is first turned on the Green indicator will show solid for about 30 seconds. After this initial setup period,
Green
the
LED will blink slowly (8 times in 10 seconds) when the Ignition is turned off, and rapidly (25 times in 10 seconds)
when the Ignition is turned on.
Red
• The
LED is used to indicate error conditions by flashing a 2-digit code. The first digit indicates the general error type
(1=hardware, 2=modem, 3=GPS, 4=end-to-end service) and the second digit indicates a more specific error described in the
table below. Note that if multiple error conditions exist, the
1st Digit
2nd Digit
Error Condition
License key has expired. Please contact Nero Support
1
1
Low supply voltage. Ensure that the vehicle battery is supplying adequate voltage.
1
2
Contact Nero Support if the error persists.
Data usage exceeded. Please contact Nero Support.
1
3
2
1
Modem module fault. Please contact Nero Support.
No SIM inserted. Please contact Nero Support.
2
2
2
3
No cellular signal.
2
4
Network not found. Please contact Nero Support to verify the SIM activation.
2
5
Last data session failed.
2
6
GPRS not attached. Please verify beacon activation.
3
1
GPS module fault. Please contact Nero Support.
3
2
GPS antenna fault.
3
3
GPS not tracking any satellites.
3
4
GPS no fix (< 3 satellites).
3
5
GPS has no time.
4
2
Data transfer failed.
rev 2020.08.05
Page 4 of 11
20-pin Molex Connector – Pin Descriptions
Pin Wire Color
11 White
12 Yellow (J1939 cable)
13 Red/White
14 Green (J1939 cable)
15 White
(*
see side note)
17 Black
18 Green/Yellow
19 Purple
20 Brown
RED LED Error Codes
*
*
*
*
*
*
*
Description
Switch 2 input (+)
CAN/J1939 Hi
Switch 4 input (-)
CAN/J1939 Lo
Ignition input (+) [not used]
Relay 1 output (-)
GND
Switch 1 input (+)
LED Control [Driver ID]
Analog input (0 – 16v)
[not used]
Red
LED will cycle through all current error conditions.
installation guide
installation guide
Nero 66xx Beacon Family
*
This pin is not used for
the Type-1 cable, but may
be used on other cables as
an identifier for the cable/
port type: +12v indicates
OBD, GND indicates J1939
500 kHz, and OPEN indicates
J1939 250 kHz.
*
The
se issues may be
caused by an incorrectly
positioned beacon.
If the device is connected
properly and has an
unobstructed view of the sky,
and the error persists, please
contact
Nero Support
support@neroglobal.com
www.neroglobal.com
© 2020 Vecima Networks Inc. All rights reserved.
at
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