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HSR/PRP/PTP RedBox Switches

Critical systems demand time-aware high-availability networking.

RelyUm redbox switch products are a new concept of intelligent devices that integrates advanced field-proven technology for non-packet-loss redundant Ethernet, sub-microsecond synchronization and cybersecurity.

These devices are able to provide the whole LAN with redundant networks (PRP, HSR), connecting PRP and HSR networks with each other, as well as extending HSR rings via QuadBox operation.

Technologies

  • “Zero-Packet-Loss” redundancy protocols:
    • IEC 62439-3 v3 Clause 5: High availability Seamless Redundancy (HSR)
      • Modes: H, N, T, U, HSR-SAN, PRP-HSR, HSR-HSR
    • IEC 62439-3 v3 Clause 4: Parallel Redundancy Protocol (PRP)
      • Modes: Duplicate discard, duplicate accept
  • IEEE 1588-2008 PTPv2:
    • Modes: Transparent Clock, Ordinary Clock, Boundary Clock
    • IEEE 1588 Stateless Transparent Clock P2P mode to support

Applications

Redbox switch functionality has become a must to be supported by any electronic device connected to an electrical substation LAN. 

In addition, the simplicity in the implementation and configuration of these protocols and their effectiveness in guaranteeing high availability of communications, has led to their use in other sectors such as:

  • Transmission and distribution substation networks (station and process bus)
  • Power generation plant LAN networks
  • Renewables plant LAN networks, e.g. windmill interconnection through HSR rings
  • Radio broadcasting WAN backbone network
  • Railway remote control systems interconnection network

Products

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RELY-PCIe

  • Form Factor Full-height or low-profile PCIe
  • Communication Interfaces 3x 1G SFP ports + 1x 1G PCIe port
  • Networking HSR/PRP, STP/RSTP/MSTP
  • Synchronization PTP (IEEE 1588), NTP

  • Cybersecurity IEEE 802.1X

  • Other Features Time bridging, network monitoring

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RELY-RB

  • Form Factor Standalone box
  • Communication Interfaces 4x 1G SFP ports + 1x 1G service port
  • Networking HSR/PRP, STP/RSTP/MSTP
  • Synchronization PTP (IEEE 1588), NTP

  • Cybersecurity IEEE 802.1X

  • Other Features Time bridging, network monitoring