: Right-click sscom5131.exe and select Run as Administrator to ensure it has permission to access your COM ports.
After downloading, run a virus scan. Legitimate Sscom V5.13.1 English.exe should be about 500KB–800KB and hash to a known MD5 (available on community forums). Sscom V5.13.1 English Version Download
You can perform a loopback test by shorting pins 2 (RXD) and 3 (TXD) on a DB9 serial connector. When you send data, it should immediately appear in the receive window, confirming that your port works and the software is configured correctly. : Right-click sscom5131
Navigate to the folder where you extracted the files. There will be at least one executable file. You can perform a loopback test by shorting
: Set baud rate, parity, data bits, and stop bits according to device specifications.
If you're using Windows 10 or 11 and encounter any issues, try running the program as administrator (right‑click the .exe → "Run as administrator").