RTDI-451 secured and ruggedized 4G/LTE router

RTDI-451 provides all connectivity interfaces that are required in Eletricity distribution networks through highly secured communications over the 4G/LTE mobile network. It improves the cybersecurity protection to unequalled levels thanks to hardened hardware and software features.

RTDI-451 routeur 4G/LTE securisé

RTDI-451 ensures higly secured communications to electricity transport and distribution substations over a 4G/LTE connection.

RTDI-451 delivers all interfaces required to connect the substation equipment in compliance with the IEC-61850-3 requirements.

Routeur 4G RTDI-451

RTDI-451 provides unequalled level of cybersecurity to Utility mission critical networks. Utility communications are secured by IPSec tunnels that are authenticated and encrypted by most robust AES protocols.

RTDI-451 embeds a Secure-Element that secures all critical information such as X509 certificates for IPSec communications. It works with the enterprise PKI to securely refresh X509 certificates through the SCEP protocol.

All software modules are encrypted and authenticated at boot time to guaranty their integrity before execution.

Thanks to those cybersecurity features and higher isolation interfaces, RTDI-451 is a perfect communication for the electricity networks:

  • Smart Grid
  • MV/LV substations
  • Regional electicity distribution companies
  • Wind famrs
  • Solar generation
  • but also many other mission critical networks: railway, oil and gas, water distribution, etc.

RTDI-455 embeds a FXS telephone interface and a multimode modem that complies with the ITU-T V21 to V34 standards. It emulates the PSTN Public Switched Telephone Network and modem communication to the central server to carry the application data over the IP network through secured VPN communications.

Routeur RTDI-455 émulation du RTC

RTDI-455 enables flexible migration of existing PSTN applications to secured and adapted IP communications over the 4G/LTE mobile network.


  • 1x SIM card 
  • GSM: 850/900/1800/1900 MHz
  • WCDMA: B1/B5/B8
  • LTE FDD: B1/B3/B5/B7/B8/B20/B28A
  • LTE TDD : B38/B40/B41
  • 4x Ethernet ports with 2 kV isolation
  • 1x RS232 port 
  • 1x USB H/D port 
  • 1x digital input
  • 1x relay output
  • Dual IP stack v4 / v6 
  • OpenVPN, IPSec, AES256, IKEv2, L2TP
  • VLAN, 802.1q, QoS 802.1p, CoS, DSCP
  • 802.1X, Radius
  • Firewall, ACL
  • PKI, SCEP,
  • Secure-Element, Secure-Boot
  • Power supply: 12-24 Vdc, 7 W typical, 12 W max
  • Operating temperature : -25 to +65 °C
  • Dimension : 110 x 60 x 100 mm
  • DIN rail mounting
  • CE, IEC-61850-3

RTDI-451     4G/LTE router with 4x 10/100BT Ethernet ports, 1x serial port, 1xDI and 1xDO, high isolation interfaces

RTDI-455     4G/LTE router with 4x 10/100BT Ethernet ports, 1x serial port, 1xDI and 1xDO, FXS and modem for POTS emulation, high isolation interfaces