The range extender firmware update is performed via USB using a serial emulated terminal.

The instruction depends on OS you are running:

• Windows
• Linux

Windows

To initiate a firmware update, follow these steps:

1. Connect a USB cable between the computer and the camera, and establish a connection (download driver from Silabs website).
2. Open a serial emulated terminal (Tera Term is recommended) and configure the serial communication protocol as described in the table below:

   Parameter	Value
   Baud rate	115200
   Start bits	1
   Stop bits	1
   Parity	None
   Flow Control	None

3. In the terminal window enter 'status' command and check the current firmware version.
   
    
4. Choose the firmware update option by entering 'firmware' command.
5. Click File tab and use 'transfer' capability with the XMODEM protocol to initiate the update.
   Choose firmware file: 'cxp_fiber_ext_II_host_firmware_update_N.bin' (N represents the firmware version; the file name may vary).
   
    
6. If no firmware will be sent during 60 second, or in case of an error, the firmware update will fail and return to the previous operation mode.
   
    
7. The firmware update process will take approx. 10 minutes.
   
    
8. A successful update will result in appropriate message and a reboot of the extender to new firmware.
9. Check the firmware version by typing 'status' followed by carriage return. Make sure that the firmware version matches the version on the firmware update package supplied; that would ensure the success of the firmware update operation.

Linux

1. Connect the extender to the PC via USB cable
2. Open terminal and install minicom and lrzsz:
   sudo apt install minicom lrzsz -y
3. Find the extender USB connection 'cp210x converter':
   dmesg | grep tty
4. Open screen using minicom:
   sudo minicom -b 115200 -o -D /dev/ttyUSB0
5. Check current extender status:
   status
6. If the firmware is outdated, initiate the firmare update process:
   firmware
7. After receiving message "Now starting firmware update, please start file transfer using XMODEM" press Ctrl+A and then ":"
8. Type:
   exec !! sx /path/to/FW_update_file.bin
9. After the procedure is finished perform a complete power cycle on the extender