Connect to the PBX: Plug your USB cable into the "MNT" (Maintenance) port on the PBX processor card and the other end into your PC.
Mode Selection: Choose "Connect to PBX" and select the USB communication port. Security and Best Practices panasonic pbx unified maintenance console 73 better download
Once the download is complete, follow these steps to establish a connection: Connect to the PBX: Plug your USB cable