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12
GPS35190 User’s Manual
CN5: GPS CAN Bus Connector
CN5 is the GPS CAN Bus port. The GPS35190 provides the CAN transceiver required to connect the GPS directly to CAN network. This
requires the GPS module to configure COM3 as CAN. Jumper JP4 controls the GPS to CAN transceiver connection. If JP4 has pins 1
–
2
shorted GPS COM3 is connected to the UART channel 3. If JP4 has pins 2
–
3 shorted GPS COM3 is connected to the CAN transceiver.
Table 11 is the pin out of the Ethernet connector.
Table 11: CN5 GPS CAN
Pin Name
Pin # Pin # Pin Name
GND
2
1
Rsvd
CAN-H
4
3
CAN-L
Rsvd
6
5
GND
+5V
1
8
7
Rsvd
Rsvd
10
9
GND
1
Only Available when B1 is shorted
Note:
CN8 is for Factory Use only
3.3.3
J
UMPERS
JP1 and JP2: CN7 Serial Port Source
JP1 and JP2 are 3-pin two position jumpers that are used to select if the UART or a GPS serial port is connected to CN7. These jumpers affect
UART serial ports 1, 2, and 4 as well as GPS serial ports 1 and 2. Table 12 has JP1 and JP2 setting information.
Table 12: JP1 and JP2 Settings
JP1 Setting
JP2 Setting
Description
Notes
1
–
2
Any
Position
GPS serial port 1 connected to UART serial port 1
GPS serial port 2 connected to UART serial port 2
UART serial port 4 is connected to CN7
Factory default is 1
–
2 for
both JP1 and JP2
2
–
3
1
–
2
GPS serial port 1 connected to CN7
GPS serial port 2 connected to UART serial port 2
UART serial port 1 monitors GPS serial port 1
UART serial port 4 is unused
2
–
3
GPS serial port 1 connected to UART serial port 1
GPS serial port 2 connected to CN7
UART serial port 2 monitors GPS serial port 2
UART serial port 4 is unused
JP3: CN7 Serial Port Mode
JP3 is used to select the mode of serial port CN7. The options are shown in Table 13.
Table 13: JP3 Settings
Setting Description
Notes
1
–
2
RS-232
Factory default
2
–
3
RS-422/485
Note that in RS-422 mode when connected to the UART (JP1 is 1
–
2) RTS is used to enable the driver. When connected to the GPS (JP1 is 2
–
3) the driver is always enabled.
JP4: GPS Serial Port 3 Connection
JP4 is used to select the connection of GPS serial port 3. The options are shown in Table 14.
Table 14: JP4 Settings
Setting Description
Notes
1
–
2
GPS serial port 3 connected to UART serial port 3
Factory default
