Metering devices are often installed in remote substations, deep well sites, underground distribution rooms – places with unstable signals. A standard Data Transfer Unit, upon detecting weak 4G, typically requires a manual reboot or simply loses connection. Tespro’s multi-mode DTU features an intelligent fallback sequence: administrators set a signal threshold on the cloud dashboard (e.g., RSSI < -95 dBm). When 4G quality degrades, the unit automatically attempts 3G, and if still unavailable, falls back to 2G – all without data loss or human intervention.
Every fallback event is logged to the cloud in real time
Operations teams can remotely see which site experienced signal fluctuation and when it recovered, allowing proactive adjustments such as antenna repositioning or carrier selection.
For globally deploying manufacturers, Tespro DTU accepts standard mini-PCIe cards, which can be swapped for locally certified modules. Pre-tested bands include Verizon (US), China Mobile, Vodafone, and many others. One unit works in Manila, Nairobi, or rural Poland – just insert a local SIM and let auto-APN detection handle the rest.
- In rural Africa where 4G coverage is very poor, will the DTU constantly disconnect?
No. The Tespro DTU first attempts 4G. If signal strength stays below your configured threshold (e.g., after three failed registration attempts), it automatically falls back to the available 3G or 2G network. This transition typically takes seconds, and metering data is cached locally during the switch – once connectivity is restored, the data is retransmitted with zero loss. - We plan to deploy this DTU in the Middle East. Do we need to pre‑configure frequency bands?
Tespro provides pre‑configured frequency profiles for countries such as Saudi Arabia, UAE, and Qatar. Simply tell us your target countries during procurement, and we can preload the optimal band list. You can also remotely change band priority anytime via the cloud platform – no site visit required.
Automatic fallback is not a luxury – it’s the only way to guarantee data continuity in real-world industrial environments. Tespro’s multi-mode DTU delivers seamless handovers between 2G, 3G, and 4G, with full cloud visibility. For technical datasheets and a customized fallback threshold guide, contact their engineering team directly.
