Description
Teltonika RUT206: 4G for serial equipment
The RUT206 is a small industrial router that connects serial devices to the internet over 4G LTE. Its RS232 and RS485 ports link directly to energy meters, PLCs, controllers and other equipment that predates Ethernet, and the router speaks the protocols that equipment uses: Modbus, DNP3 and DLMS.
It’s also easy to install. The 2-pin DC input takes 9 to 57 V, or you can skip the power cable entirely and run it over PoE from a switch or injector. Two SIM slots keep it online if one carrier drops, and a microSD slot gives it local storage for logged data. Teltonika’s Remote Management System (RMS) lets you monitor it and change settings remotely.
RUT206 specifications
| Mobile | 4G LTE Cat 4, up to 150 Mbps down / 50 Mbps up; 3G and 2G fallback |
|---|---|
| SIM | 2 × Mini SIM (2FF) slots plus eSIM; auto-failover |
| Ethernet | 2 × 10/100 Mbps (1 WAN, 1 LAN; configurable) |
| Serial | RS232 and RS485 (2-wire, half duplex) on a 6-pin terminal block |
| Wi-Fi | 802.11b/g/n (Wi-Fi 4), 2.4 GHz, access point or client |
| Storage | microSD slot, up to 2 TB |
| Power | 9 to 57 V DC, 2-pin industrial socket; under 2 W idle, under 3.5 W max |
| PoE | PoE in on LAN: 802.3af (Class 0) or passive PoE, 16 to 57 V DC |
| Antennas | 2 × SMA (mobile), 1 × RP-SMA (Wi-Fi) |
| Size and weight | 3.3 × 3.3 × 1.0 in (83 × 83 × 25 mm), 0.29 lb (132 g) |
| Housing | Anodized aluminum, IP30; DIN rail, wall or flat-surface mounting (kits sold separately) |
| Operating temperature | -40 °F to 167 °F (-40 °C to 75 °C) |
| Industrial protocols | Modbus RTU and TCP (client and server), DNP3, DLMS |
| VPN | OpenVPN, IPsec, WireGuard, ZeroTier, GRE, L2TP and more |
| Management | Teltonika RMS, RutOS |
| US certification | FCC, IC, PTCRB; AT&T approved; CTIA IoT Network Certified |
Where the RUT206 fits
- Energy and utility meters: read DLMS and Modbus meters over 4G, without running a cable back to an office.
- PLCs and industrial control: convert Modbus RTU to Modbus TCP so a SCADA system or cloud platform can poll serial equipment remotely. Add a static IP SIM if your system needs a fixed address to connect to.
- Solar, pumps and remote assets: low power draw and a wide-temperature case suit cabinets at unmanned sites.
- PoE installs: one Ethernet cable from a switch carries power and data, which keeps cabinet wiring simple.
RUT206, RUT241 or RUT951?
| RUT206 | RUT241 | RUT951 | |
|---|---|---|---|
| Network | 4G LTE Cat 4 | 4G LTE Cat 4 | 4G LTE Cat 4 |
| SIM | 2 slots + eSIM | 1 slot + eSIM (7 profiles) | 2 slots + eSIM (7 profiles) |
| Ethernet | 2 ports | 2 ports | 4 ports |
| Serial | RS232 and RS485 | No | No |
| PoE | PoE in (802.3af or passive) | No | Passive PoE in (LAN1) |
| Best for | Meters, PLCs and serial equipment | Single device or small site, lowest cost | Dual-carrier failover with several wired devices |
| Price | $250 | $219 | $325 |
Order it with a SIM, set up before it ships
Buy the RUT206 with a Titus multi-carrier IoT SIM and we’ll set it up before it leaves us: SIMs installed, private APN and VPN configured, your security settings applied and the connection tested. It arrives ready to plug in. See IoT SIM plans or talk to us about a rollout.
Teltonika RUT206 FAQs
Does the RUT206 work on US networks?
Yes. The RUT206 is FCC and PTCRB certified and approved by AT&T. With a Titus multi-carrier SIM it connects to AT&T, Verizon and T-Mobile and uses the strongest signal.
What is the RUT206’s serial port used for?
It connects equipment that talks over RS232 or RS485, such as energy meters, PLCs, controllers and sensors. The router passes that data over 4G, so you can read or control the equipment remotely.
Can the RUT206 convert Modbus RTU to Modbus TCP?
Yes. It works as a Modbus gateway, so a SCADA system or cloud platform can poll serial Modbus RTU devices over the network using Modbus TCP. It also supports DNP3 and DLMS.
Can the RUT206 be powered over Ethernet?
Yes. The LAN port accepts standard 802.3af PoE or passive PoE from 16 to 57 V, so one cable can carry power and data. It can also run from its 2-pin DC input.
Should I choose the RUT206 or the RUT241?
Choose the RUT206 if you need to connect serial equipment, power the router over PoE or use two physical SIMs. The RUT241 is cheaper, with one SIM slot plus eSIM and no serial port, and suits a single Ethernet device or small site.
Can you ship the RUT206 pre-configured?
Yes. Order it with a Titus SIM and we’ll install the SIMs, set up the private APN, VPN and your security settings, and test it before it ships.
