QPRO Technical Data Sheet
Document 1137-0901, REV A
15
1 and 2) while the switches are turned “ON,” the unit
will be damaged
.
Inductive Load Use Warning
: If an inductive load such as a relay is used, it can generate a spike
voltage across it. If that exceeds 60 volts peak the spike must be limited. Check if the external inductive load
is internally limited. If not, a clamp diode across the inductive load, with the cathode towards the positive
input lead must be used.
4.3
J1939
The J1939 bus connection is used on Heavy Trucks Engine Computers to obtain engine and other
subsystem parameters such as Oil Pressure and Fuel Level. See the SAE J1850/1939 specification for
additional information on this engine bus.
•
CAN Bus with J1939 stack interface
•
This bus is connected on pins 10 (CAN_H) and 11 (CAN_L)
4.4
3.5V Power
There are two pins that provide 3.5 VDC continuous power. One of the outputs can source up to 150 mA,
(Pin 4) and the other output can source up to 500 mA, (Pin 3). Don’t include these pins on the connector if
they are not being used. Connecting these pins incorrectly could damage the unit and void the warranty.
4.5
RS-232 Ports (General)
The QPRO has four (4) RS-232 serial ports. The first is the
Main Transport Socket
(MTS) Port, which
implements QUAKE’s Communication Protocol (QCP). The second is the Logger Port. The Logger Port
provides the diagnostic data for the user. The third and fourth serial ports are only available depending on
the specific QPRO model. See individual port descriptions for additional information. All serial ports support
baud rates up to 115.2 Kbps. All ports are protected against shorts to both the BATT+ and BATT- lines. The
serial ports meet the standard voltage level for RS-232 operation.
•
MTS Serial Port- The Main Transport Socket port; known as
the MTS port, is an RS-232
port which implements the QUAKE Communications Protocol (QCP). For QPRO models that support
ORBCOMM this port also supports the Orbcomm Serial Interface (OSI).
Pins: 13 (Tx), 14 (Rx), 15 (DSR), 16 (DTR), 17 (DCD), and GND (Pin 9, 12, 26, or
35)
•
Logger Serial Port
– RS-232 3-wire used for debugging and logging of system data/performance.
o
Pins: 24 and 25. Rx and Tx respectively. GND (Pin 9, 12, 26, or 35).
•
AUX Serial Port
– RS-232 3-wire can be used by application developers on QPRO models that do
not include the Iridium satellite feature.
o
Pins: 5 and 6. Tx and Rx respectively. GND (Pin 9, 12, 26, or 35)
•
GSM Serial Port
– RS-232 3-wire can be used on QPRO models which include the GSM feature for
firmware updates. For QPRO models that do not include the GSM feature this port can be used by
the application directly.
o
Pins: 7 and 8. Tx and Rx respectively. GND (Pin 9, 12, 26, or 35).
Note
: The auxiliary port is not available for customer use on QPRO models that include an Iridium or
Globalstar satellite option.
4.6
Interface Connector Electrical Specification
Note:
All lines are protected against over-voltage and transients (see Signal Description Section); the Max
(Min) Nominal Voltage column is intended to provide information about the voltage limits for normal
operation.
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