Sierra Wireless Airlink RV50 Industrial 4G LTE Gateway Posted on December 11, 2015December 11, 2015 by james233 Industrial 4G LTE Connectivity. LTE performance at 2G power consumption – uses less than 1 watt Most rugged AirLink® industrial gateway ever built Ideal for solar-powered applications Sierra Wireless RV50 Industrial 4G LTE Router Posted in IOT.