User's Manual

Confidential Document
© ATrack Technology Inc. All Rights Reserved. Page 5 of 22
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There are five signaling protocols that are permitted with the OBD-II interface. Most vehicles have been
implemented with only one of the protocols. The AX7 features a superior protocol detection algorithm that
ensures the device connects reliably even to vehicles that do not fully conform to the OBDII standards. The
AX7 supported all legislated OBD-II protocols below:
 J1850 PWM (Ford vehicles)
 J1850 VPW (GM vehicles)
 ISO9141-2 (Asian, European, Chrysler vehicles)
 ISO 14230-4 KWP
 ISO 15765-4 CAN (11/29 bit ID,250/500 Kbaud)
The AXTool has an “OBD Live Data” viewer for showing OBD data in real time. See Section 4.2 for detail
descriptions.
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The Micro USB can supply power to the AX7 device for parameters setting or firmware upgrade purpose.
When micro USB is connected to your laptop/PC and main power is not applied, the OBD-II and GSM/GPRS
functions will be turned off temporarily.
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The internal buzzer of the AX7 can be configured by any events or triggered by remote GSM/GPRS server.
Refer to AX7 Protocol Document for details.
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The AX7 device connects to the OBD-II SAE J1962 connector of vehicle and draws power from the OBD port.
No additional power cabling is required for operation. If the OBD port of vehicle is covered or you need to
install AX7 in another place for better GPS reception, the optional low profile OBD-II extension cable is
required.