Connectivity Options for Remote and Classified Sites
VIE's gateway connects to the cloud from wherever the transformer is. Offshore platforms, remote compressor stations, unmanned rural substations, and international deployments without local IT infrastructure all present the same problem: the transformer that most needs continuous monitoring is the one hardest to reach. The connectivity architecture is built around that reality.
The Full Connectivity Stack
The VIE gateway supports four connectivity modes, selectable based on site conditions:
LTE Cat1 and Cat4 provide global cellular coverage for sites without local network infrastructure. LTE Cat1 is optimized for low-bandwidth, continuous data transmission — well suited to VIE's reporting cadence of four transmissions per hour per sensor. LTE Cat4 supports higher bandwidth when needed. Both operate on global carrier networks, making VIE deployable internationally without site-specific network provisioning.
CAT M1 (LTE-M) and CAT M2 (NB-IoT) are US-specific low-power wide-area network (LPWAN) variants designed for IoT applications in areas with limited standard LTE coverage. For remote US sites — rural substations, pipeline assets in low-population corridors, upstream oil and gas operations in areas with limited cellular infrastructure — CAT M1 and CAT M2 extend deployable range beyond what standard LTE covers.
802.11 a/b/g Wi-Fi connects the gateway to existing site Wi-Fi networks where available. Suitable for industrial plants, downstream refinery environments, and data center sites with established wireless infrastructure.
Wired Ethernet provides the most reliable upstream connection for sites with local network infrastructure. For substations with IT/OT network access and for industrial facilities with managed network environments, Ethernet eliminates dependence on cellular signal quality.
The gateway connects automatically to the highest-priority available connection type and falls back gracefully when primary connectivity is interrupted.
Classified Hazardous Areas
For oil and gas sites with ATEX-classified zones, the gateway's ingress protection rating (IP69K, NEMA 6/6P) allows installation in outdoor industrial environments. The sensor, rated to ATEX Zone 0/20, can be installed in areas classified for continuous explosive gas atmospheres. Together, the sensor and gateway enable complete deployments in the environments where most commercial monitoring equipment is excluded.
For North American operations, operators should confirm NEC Class I Division 1 (C1D1) applicability with their safety and compliance teams. [FLAG FOR ENGINEERING REVIEW: confirm whether VIE gateway carries C1D1 certification or only the sensor carries ATEX Zone 0/20.]
Over-the-Air Configuration
Every configuration parameter accessible through the VIE platform is adjustable over the air. Firmware updates, sampling rate changes, alert threshold adjustments, and sensor-gateway association changes all apply remotely without a site visit.
For a utility managing 300 gateways across 60 substations, a firmware update deploys simultaneously to all devices. For an oil and gas operator with assets at offshore platforms and remote midstream stations, increasing the sampling frequency on a flagged asset does not require coordinating a crew change or a helicopter flight. For any operator managing assets that are expensive or logistically complex to visit, over-the-air configuration is not a convenience feature. It is an operational requirement.
Auto-Recovery and Data Continuity
Industrial connectivity is not perfectly reliable. Cellular signal degrades. Power interruptions occur. Network outages happen. VIE's gateway handles these through auto-recovery: when connectivity to the VIE cloud platform is interrupted, the gateway continues collecting sensor data locally, buffers it, and transmits the accumulated data when connectivity resumes.
The result is that brief connectivity interruptions do not create data gaps in the monitoring record. A gateway that loses LTE connectivity for four hours and then reconnects transmits the missed readings as a continuous data stream. The platform receives the data in order and the health metric timeline is complete.
For remote and offshore sites where connectivity interruptions are a normal operating condition rather than an exception, this matters for every subsequent analysis. A health metric trend that appears to change abruptly after a connectivity gap may be an artifact of missing data, not a real mechanical event. Auto-recovery eliminates that ambiguity.
International Deployments
VIE's LTE connectivity operates on global carrier networks. Deployments outside North America use the same gateway hardware with local SIM provisioning for the target region. Australian deployments, Middle Eastern utility projects, and European industrial installations all use the same gateway, configured for the local LTE band plan.
For operators with transformer fleets spanning multiple countries, this means a single platform and a single hardware standard regardless of geography. The monitoring architecture does not change by region.