Au SAE J1939, J1708, and OBD2 CAN Combo Interpreter (Figure 1-1), a palm-size handheld device with a DB9 male BUS interface (including J1939/CAN, J1708/J1587, and OBD2 CAN) and a DB9 female RS232 interface, is capable of interpreting the most popular SAE J1939 , J1708, and OBD2 CAN signals to RS232 ASCII strings (AT command strings)
Au Combo Interpreter can also send out commands to request for Engine Hour, VIN automatically. So that Engine Hour and VIN will be available for other nodes on the same network as well.
Automatically detect CAN bus baud rate: 1M, 500K, 250K, 125K, 62.5K
Two energy saving modes: Deep sleep mode and standby sleep mode
Configurable inter-frame spacing: 0~65535 seconds(0.0~18.2 hours)
Automatically request for Engine Hour, Battery potential (Switched), and Vehicle Identification Number(VIN)
Capable of sending global request and specific request
Configurable RS232 baud rate
Controllable data flow on RS232 serial port. (Refer to command Mute8E, Mute9E, Start8, and Start9 for detailed information.)
Enhanced data format for separating received data from different network.
- Configurable device Source Address and device MID: support multiple SA per J1939 and MID per J1708. They can be configured in-field using Settings Commands through RS232 serial communication, refer to Table 2-6 for detailed information.
In-field firmware updating capability with Au Bootloader technology.
Ease of use: No software setup experience or protocol configuration skill is required.
Power Supply: Operating range: 10V ~ 32V DC; nominal voltage: +12V DC or +24V DC
Operating Electric Current: 65mA typical, 250mA max
Operating Temperature: -40°F to 185°F (-40°C to 85°C)
Size: 3-1/8 inch L X 1-11/16 inch W X 13/16 inch H (78mm X 42mm X 21mm)
TVS (Transient Voltage Suppressor) protection on J1939, J1708/J1587, and OBD2 CAN bus
Enclosure Color: Black and translucent red
1 LED for communication event indication
1 RS232 interface (DB9 female connector): can be connected to PC or any device with RS232 serial port for device running status monitoring and in-field programming ( default RS232 baud rate: 115.2K)
1 BUS interface (DB9 male connector): can be connected to J1939/CAN, J1708/J1587 network, and a power supply (+14.2V DC nominal). The pin-out of the DB9 male "BUS" interface is illustrated in following pin-out diagram:
A typical application of Au Combo Interpreter in SAE J1939-15 network and J1708/J1587 network is illustrated here:
Fuel Level 2 (SPN: 38)
Wheel Based Vehicle Speed (SPN: 84)
Accelerator Pedal Position 1 (SPN: 91)
Engine Percent Load at Current Speed (SPN: 92)
Fuel Level 1 (SPN: 96)
Water In Fuel Indicator 1 (SPN: 97)
Engine Oil Pressure (SPN: 100)
Engine Intake Manifold #1 Pressure (obsolete term: Engine Turbocharger Boost Pressure) (SPN: 102)
Engine Intake Manifold 1 Temperature (SPN: 105)
Engine Coolant Temperature (SPN: 110)
Key-switch Battery Potential (obsolete term: Battery Potential (Voltage), Switched) (SPN: 158)
Battery Potential / Power Input 1 (obsolete term: Electrical Potential (Voltage)) (SPN: 168)
Engine Fuel Rate (SPN: 183)
Engine Instantaneous Fuel Economy (SPN: 184)
Engine Speed (SPN: 190)
Vehicle Identification Number (VIN) (SPN 237)
Total Vehicle Distance (SPN 245)
Engine Total Hours of Operation (SPN: 247)
Engine DM1 BYTE 1
Malfunction Indicator Lamp Status (SPN: 1213)
Red Stop Lamp Status (SPN: 623)
Amber Warning Lamp Status (SPN: 624)
Protect Lamp Status (SPN: 987)
Engine DM1 BYTE2:
Flash Malfunction Indicator Lamp (SPN: 3038)
Flash Red Stop Lamp (SPN: 3039)
Flash Amber Warning Lamp (SPN: 3040)
Flash Protect Lamp (SPN: 3041)
Engine DM1 zero error code
Engine DM1 one error code
Engine DM1 multiple error codes (up to 64)
Engine DM2 BYTE 1
Malfunction Indicator Lamp Status (SPN: 1213)
Red Stop Lamp Status (SPN: 623)
Amber Warning Lamp Status (SPN: 624)
Protect Lamp Status (SPN: 987)
Engine DM2 BYTE2:
Flash Malfunction Indicator Lamp (SPN: 3038)
Flash Red Stop Lamp (SPN: 3039)
Flash Amber Warning Lamp (SPN: 3040)
Flash Protect Lamp (SPN: 3041)
Engine DM2 Zero error code
Engine DM2 one error code
Engine DM2 multiple error codes (up to 64)
Engine DM3 (Global Request)
Engine DM3 (Specific Request)
Second Fuel Level (Right Side) (PID: 38)
Attention/Warning Indicator Lamps Status (PID: 44)
Road Speed (PID: 84)
Percent Accelerator Pedal Position (PID: 91)
Percent Engine Load (PID: 92)
Fuel Level (PID: 95)
Water in Fuel Indicator (PID: 97)
Engine Oil Pressure (PID: 100)
Boost Pressure (PID: 102)
Intake Manifold Temperature (PID: 105)
Engine Coolant Temperature (PID: 110)
Battery Potential (Voltage) - Switched (PID: 158)
Battery Potential (Voltage) (PID: 168)
Fuel Rate (Instantaneous) (PID: 183)
Instantaneous Fuel Economy (PID: 184)
Engine Speed (RPM, PID: 190)
Total Vehicle Distance (PID: 245)
Total Engine Hours (PID: 247)
Engine DM1
Engine DM2
An interchageable, plug in combo interpreter module is developed for seamless integretion to other devices that needs CAN/J1939, J1708/J1587, and/or OBD2 CAN bus interpreting function.
