Installation Instructions For The ATrack AK11 GPS Device
The ATrack AK11 GPS device is installed as outlined below. Devices will be mostly plug-and-play using the J1939 port beneath the dash of each school bus. Some vehicles, especially older vehicles, will not accept a continuously connected J1939 device and will create errors with the proper function of gauges. This can be caused by resistance in the J1939 wiring where resistance is not equal to 60 oms. These vehicles will need to be hardwired.
J1939 Cable Connection: Plug one end of the J1939 cable into the rear of the AK11 and the other into the J1939 port. Please the device in the center of the dash without any obstruction to the sky. Please send picture so the first few installs so we can assure proper location.
Example of AK11 Dash Installation (Above)
Rear Panel of AK11 - I/O for Hardwire, DLC for Direct Cable, Serial, USB and External Antenna. The external antenna is only needed when the AK11 is installed without a clear view of the sky. Otherwise, the device has an internal antenna and will work perfectly provided the device has a clear view of the sky and is not within 6" of any window frit.
ATrack AK11 Real Panel (Above)
Example of AK11 J1939 Cable (Above)
Hardwire Connection: Connect one end of the multi colored wire (Below) to the I/O port in the rear of the AK11. Basic installation only requires three wires; Black (ground), Red (power), Yellow (ignition). When the vehicle is at rest the voltage is near 12V at the ignition and when the vehicle is turned on the alternator is engaged and voltage increases substantially. The device is continuously monitors the voltage level at the ignition and senses when the vehicle is turned on or off based on the voltage change at the ignition wire. Therefore, the ignition wire must be properly connected to the yellow wire for the device to function properly. The remaining multi colored wires are used to connect other I/O triggers.
IMPORTANT: Your device has been preset with a program configured to the J1939 CAN. However, many NEW school buses continue to be sold using the old J1708 configuration. In this case you may see an error message or other reading on your dash or issues with the engine control unit data. We can correct these issues by sending a new program via cellular to the device. We ship OBDII devices with the correct program so errors are unlikely to occur. However, if a device is reassigned to a different vehicle you may run into error codes with the OBDII. If this happens, ee have program that will convert the device to read OBDII so just give us a call and let us know.
Example of AK11 Multi Colored I/O Cable (Above)
Example of AK11 Around the Dash Install (Above)