TOSIBOX® Lock 250


  • 30 Mbs VPN throughput and end-to-end encryption from Key to Lock, Lock to Lock or Lock to (Virtual) Central Lock
  • Up to 20 concurrent VPN connections
  • Integrated WiFi as connectivity method or access point for wireless devices on site
  • TosiOnline™ functionality of automatic reconnection of dropped connections


New TOSIBOX® Lock 250 is an efficient and robust industrial router with an integrated WiFi. It is serves as an endpoint for secure remote connections in operational (OT) networks. Devices connected to the Lock are securely accessed over the Internet and most LAN and WAN networks through an encrypted VPN connection.

NAT and firewall friendly, the Lock’s patented TOSIBOX® Plug & Go™ connection method takes you out of the box and into use in less than 5 minutes, without the need for software installations, network configurations or special IT skills.

Item numbers: TBL2EU, TBL2UK, TBL2US



*1 x USB 2.0, type A
*1 x RJ-45 WAN connection, 10/100 Mbit/s, auto-negotiation (MDI / MDI-X)
*3 x RJ-45 LAN connection, 10/100 Mbit/s, auto-negotiation (MDI / MDI-X)
*LAN3 can be assigned as Service connection, 10/100 Mbit/s, auto-negotiation (MDI / MDI-X)
*Ethernet port isolation: 1500 Vrms 1 minute (when connected to protective ground)


*12-48V DC (+/-20%), reverse polarity protected
*Device frame connector
*2 x WiFi antenna connector, RP-SMA Female
*2 x Digital Input, 2 x Digital Output, 24V DC out
*DIN rail attachment (back)
*Maximum power consumption 10W

WAN connection features

*Independent of operating systems
*Works in all Internet connections (operator independent)
*Supports HTTP proxy servers with and without authentication
*Firewall friendly
*Works with dynamic, static and private IP addresses
*Built-in firewall, NAT
*Up to 20 concurrent VPN connections
*VPN throughput up to 30 Mbit/s

Mobile connection features

*Supports TOSIBOX®-Modem
*TosiOnline™ Automatic network recovery that recovers from most cellular operator and modem problems


*IEEE 802.11 b/g/n, max. 150 Mbps
*TKIP/AES encryption
*Frequency 2.412 – 2.462 GHz, 11 channels
*Output power 20 dBm max

I/O specifications

*2 x digital inputs, galvanic isolation, current limited to <5mA, Voltage 0 – 32V nom. >12V is interpreted as ‘1’, 0-5V is ‘0’
*2 x digital outputs, 24V DC, 50 mA current shared by the outputs and 24V DC out
*1 x 24V DC out, 50 mA current shared by 24V DC out, output 1 and output 2
*Software configurable I/O state

Physical properties

*110 mm x 58 mm x 127 mm / 4.33” x 2.28” x 5.0” (L x W x H)
*Weight 495 g / 1.09 lbs (net weight article)
*Protection class IP20
*Operating temperature -20 °C … +60 °C / -4 °F … +140 °F
*Storage temperature -40 °C … +70 °C / -40 °F … +158 °F

Included accessories

*RJ-45 Cat5e Ethernet cable
*2 x WiFi antennas, 2 dBi
*I/O connector plug
*Power connector plug
*AC adapter – Input 100 – 240 V AC, frequency 47 – 63 Hz, Output 12.0 V, 1.6 A, max 19.2 W. EU, UK, AU and US power socket
*DC feed cable

ELCO 360°

Our all-round service for you!

We offer you a complete product portfolio — from data collection with our Automation products (sensors, encoders, connectors, I/O systems) via data connection with IoT hardware to data collection in our IoTHub and data visualization in the form of Industrial Apps — from our Business Unit Internet of Things. At Elco you get everything from one source!

We supplement our product portfolio with holistic services for you. We accompany and support your projects from start to finish — that's ELCO 360°.


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