Q. How many Serial Connections can I have with Fitlet2?
Fitlet2 can support up to 3 Serial Connection including the following:
-1x SoC UART RS232 on SBC - Mini Serial Port Connector.
-1x Serial Port RS232/485 Full/Half Duplex configurable with FSCG-Kit - RJ45 Connector.
Q. How can I configure the Serial I want? (RS232/RS485 Full/ Half duplex)
The mini Serial Connector accessible from the SBC has only RS232 capabilities.
For specific configuration, you can use the FSCG-Kit:
Configure the 2 switch on the FACET SBC:
Q. What is the Connection of the Ultra Mini Serial Connector?
Using the Accessory cables:
- CABDB9UMP (DB9-Female)
- ACCENC-ADPUMSER (DB9-Male)
Ultra Mini serial
For use of the Ultra Mini Serial Connector Serial Port, you need to verify the following in the BIOS:
Advanced -> PCI Subsystem Settings menu and set the Above 4G Decoding setting to Disabled.
Q. What is the connection for the RS232 and RS485 with the FSCG-Kit FACET?
The connector on the FACET is one RJ45 Port.
Connector is RJ45. No Cable is provided with the FACET.
RJ45 Female Receptacle PINOUT:
RJ45 Male Plug and DB-9 PINOUT:
Q. [Windows] Which COM Port from the Device Manager should I use?
If you use the FSCG-Kit, you will need to aut-update the drivers and you will get 4 COM Ports.
The 2 UartSub Device are the 2 com Ports from the CPU. One of them only can be used as the other is reserved and not accessible from the sides of the SBC.
The 2 USB Serial Port are provided thanks to the FACET. THey have 2 different functions:
- 1 is used for the CAN BUS - NOT AVAILABLE
- 1 is used for the RS232/485 connection.
You can recognise which one is the correct one thanks to the properties:
Q. [Linux] Which COM Port from the Devices should I use?
If you search for Serial Ports: #: dmesg | grep tty
you will get