Assuming you have obtained the correct software version for your UDX75, follow this precise workflow.

Legacy versions of the UDX75 UP Software relied on RS-232. However, newer UDX75 panels (hardware revision 5 and above) support remote VL via TCP/IP using an optional IP module (Aritech UDX-IP).

Run UDX_Upload_Download_Setup.exe as Administrator. Accept the default directory (C:\Program Files (x86)\Aritech\UDX_UD_Software). The installer will also install the necessary USB drivers (Silicon Labs or Prolific, depending on your adapter).

The UDX75 is a 75-zone addressable control panel that supports:

It is the successor to earlier UD series panels (UD15, UD30, UD60) and is known for its rugged design and advanced communication options, including PSTN, GSM/GPRS, and IP reporting.

Searching for “Aritech UDX75 UP Software VL” may yield results like:

Golden Rule: The three must align. The PC software, the VL module, and the panel’s internal firmware must all be from the same release family. Mixing, for example, a VL version 2.x with panel firmware 3.x will cause a communication error (“Device Mismatch” or “Protocol Error”).

A valid package will contain: