230 V power supply
Fine in normal use. At full load with USB devices it runs close to the supply's 18 W limit.
€13.95 incl. VATBuy now
RUTC series · power guide
Teltonika RUTC42 power supply and cables
Three ways to power the Teltonika RUTC42, a dual-modem 4G edge router: a 230 V wall supply, a 12/24 V car cable and a screw terminal cable. All fit its 4-pin socket.
12/24 V car cable
Plugs into a 12 or 24 V socket. Vehicle voltage passes straight to the router.
€12.95 incl. VATBuy now
Screw terminal cable
Best for heavy loads: connect to a stronger 24 V DC supply.
€11.95 incl. VATBuy now
Please note
At full load Teltonika measured the Teltonika RUTC42 at 16.8 W on 12 V, close to the 18 W our 230 V supply delivers. Normal use is lower, but if you run USB devices or keep it busy all day, use the screw terminal cable with a stronger 24 V DC supply.
About the Teltonika RUTC42
The RUTC42 is a dual-modem edge router with two LTE Cat 4 modules for failover and load balancing, plus Docker support and a powerful CPU. Teltonika lists it as the replacement for the RUTX12. It also draws the most power of the RUTC models at 12 V after the RUTC54.
It is meant for sites that cannot go offline and that also want to run applications locally.
Teltonika RUTC42 at a glance
- Mobile
- 2 x 4G LTE Cat 4
- Ethernet
- 5 x RJ45
- Wi-Fi
- 2.4 / 5 GHz
- SIM
- 2 x SIM
- Extras
- Docker, USB, two modems for failover and load balancing
- Power input
- 9 to 50 V DC, 4-pin socket
- I/O on power socket
- 1 digital input, 1 digital output
- Peak draw at 12 V
- 16.8 W (1401 mA)
- Size
- 130.4 x 42.6 x 103.4 mm
- Status
- In production
Power socket pinout
| Pin | Function | Our wire |
|---|---|---|
| 1 | Power (+) | Red |
| 2 | Ground (-) | Black |
| 3 | Digital input | Green |
| 4 | Digital output | White |
Only the screw terminal cable brings out pins 3 and 4. The other two options carry power only.
How much power the RUTC42 draws
Teltonika measured the Teltonika RUTC42 at 4.6 W when idle and 16.8 W at full load on a 12 V supply, about 1401 mA. That is 93% of what our 18 W supply can deliver. At 24 V Teltonika lists a peak of 15.6 W.
Which cable should I pick?
- Wall socket. Our 230 V supply works in normal use. For heavy, constant load with USB devices, go for a stronger DC supply instead.
- Vehicle. Plugs into a 12 or 24 V socket. Vehicle voltage passes straight to the router.
- Cabinet, battery or solar. Best for heavy loads: connect to a stronger 24 V DC supply. Add a 2 A slow-blow fuse near the source.
Install tips
- Upgrading from a RUTX12? The RUTC42 draws more at peak, about 16.8 W against 11.7 W at 12 V. A supply that was fine for the RUTX12 may have less margin now.
- The Teltonika RUTC42 is rated to 50 V, which gives good margin on 24 V vehicles. A clean supply is still the best protection against spikes.
- Use a decent supply. Teltonika warns that cheap adapters can send voltage spikes when plugged in or unplugged, and those spikes can damage the router.
Teltonika RUTC42 power FAQ
?What voltage does the Teltonika RUTC42 need?
The Teltonika RUTC42 takes 9 to 50 V DC, so 12 V, 24 V and even 48 V systems are within range.
?Why buy a separate power cable for the Teltonika RUTC42?
The adapter in the box only works with a wall socket. In a vehicle, a cabinet or on a battery, the car cable or the screw terminal cable is the better fit.
?Is the 18 W supply enough for a Teltonika RUTC42 with both modems active?
Usually yes, but it is tight at full load. Teltonika measured about 16.8 W at 12 V with both modems, Wi-Fi, CPU, USB and serial devices busy. For heavy use or extra USB devices, use the screw terminal cable with a stronger 24 V DC supply.
?What do the green and white wires do on the Teltonika RUTC42?
Green is the digital input on pin 3 and white is the digital output on pin 4. You set up both in the RutOS web interface.
?Do you sell the Teltonika RUTC42 itself?
No. We only make the power cables and the supply. The Teltonika RUTC42 is sold by Teltonika's distributors.