KVM Firmware Updates
Making the Serial Connection
Step 1: Connect the Cables
Use an RJ45 to DB9 cable to connect the Serial/Control port on the back of the KVM switch to your computer.
If your computer lacks a serial port, you can use a USB to DB9 adapter.
Step 2: Find the COM Port
Step 3: Use a Terminal to Confirm Connection and Firmware Version
Any terminal program should work, but for this guide, we will be using Tera Term. Once you have downloaded and installed Tera Term you can use it to send and receive commands with the KVM switch.
Start by selecting Serial and then using the drop-down to select the COM port your KVM is connected to.
Once you are in the terminal, press the Setup drop-down and select Terminal, make sure Local echo is checked.
Press the Setup drop-down again and select Serial port. Change the Baud rate to 115200. Press OK to leave the menu, and then press the reset button on the KVM switch. The terminal should print out the firmware version of the KVM switch.
Now you must close Tera Term to update the firmware.