Troubleshoot a Presto terminal 'Communication Error' after a network outage. Includes diagnostic steps, prevention, and safety guidelines for kiosks.
Communication errors in card terminals can stem from several sources. These include voltage fluctuations affecting the network interface, incorrect baud rates in serial communication modules, electromagnetic interference (EMI) disrupting signal integrity, and signal attenuation across long or damaged network cables. The Presto terminal relies on network connectivity to process transactions and communicate with central servers. Disruptions in this connectivity result in communication errors.
To prevent future communication errors, ensure the terminal has a stable and reliable network connection. Implement cable strain relief to prevent damage to the network cable. Regularly inspect cables and connectors for wear and tear. Ensure adequate ventilation to prevent overheating, which can affect electronic components.
Try pinging a known external server (e.g., 8.8.8.8) from the terminal's diagnostic menu (if available) to verify basic network connectivity. If the ping fails, it indicates a network configuration or connectivity issue, and points to an issue outside of the Presto's EMV core.