Articles in this category H820t-W Quick Start Guide This guide covers the hardware setup and first-time configuration of the Proroute H820t-W 4G router. Follow the steps in order â from inserting the SIM to verifying an internet connection. The H820t-... H820t-W-G-RS485 Quick Start Guide This guide covers the hardware setup and first-time configuration of the Proroute H820t-W-G-RS485 4G router. This variant includes a GNSS receiver and RS485 serial interface in addition to the standar... H820tâW Router â Hardware Revisions & Firmware Compatibility The H820t-W has been produced in three hardware revisions. Each revision uses a different platform and supports a specific firmware series. Installing firmware from an incompatible series can damage o... H820 - LED Light Information This article describes the LED indicators on the H820 router â what each LED represents, the expected sequence on power-up, and how to interpret the signal strength indicator. Power-up sequence When ...