Teltonika ATRM50 5G router for transportation, Wi-Fi 5, 3 × gigabit LAN, GNSS

The ATRM50 belongs to Teltonika's 5G Router for Transportation family. In practice this means the device is meant to work inside a vehicle rather than on an office desk: internet arrives from the mobile network and is shared inside the vehicle over both Wi-Fi and cable. Passengers, the driver and on-board equipment all get one shared network that stays up while driving.

For mobile connectivity the router has four SMA connectors. Four antennas make MIMO possible, where several antennas send and receive at the same time, which helps keep the link stable as the vehicle moves between cell towers. The antennas can be mounted on the roof or a window, where reception is better than inside a metal body.

The wireless network runs on 802.11b/g/n/ac, so it covers both the 2.4 GHz and 5 GHz bands. Older phones and sensors connect on 2.4 GHz, while newer devices get the faster 5 GHz network. MU-MIMO lets the router serve several devices at once, which matters when a bus carries dozens of passengers. Two RP-SMA connectors are provided for the Wi-Fi antennas.

A separate SMA connector is reserved for a GNSS antenna. GNSS is the umbrella term for satellite navigation systems such as GPS and Galileo. Location data is useful for fleet tracking, timetables and stop announcements, and whenever you need to know where the device currently is.

Three RJ-45 ports at 10/100/1000 Mbit/s are there for wired equipment: an on-board computer, a video recorder, an information display or a ticket validator. Mesh support means the router can work together with other mesh devices in one network, for example to cover several carriages of a long train. The router weighs 0.55 kg.

Public transport operators offering passenger Wi-Fi and connecting on-board systems; fleet managers who rely on collecting location data; emergency and service teams whose vehicles must stay connected at all times; and integrators fitting vehicles with video surveillance or passenger information systems.