Relyum provides added value end-equipment for high-availability and Deterministic Ethernet networking, submicrosecond synchronization and wire-speed cybersecurity for critical sectors, like Electric, Industrial, Railway and Aerospace&Defence.

The brand benefits from SoC-e’s field proven technologies as the basis of all its products, which guarantees the reliability and robustness of its solutions.

Sub-Microsecond Synchronization

It is feasible implementing similar accuracy level of synchronization that provides a GPS receiver, in a device connected to an Ethernet network. The technology required to benefit from this innovation is based on Precise Time Protocol (PTP). PTP is defined in the IEEE 1588-2008 and IEC 61588:2009 standards.

PTP protocol is able to synchronize networked clocks with accuracy down to the nanosecond range. It is based on the Packet Locked Loop (PLL) approach. Like any active synchronized circuit, the IEEE 1588 clock is a servo implemented with a closed-loop algorithm. The final aim of these calculations is providing an accurate 64 bit timer in all the synchronized devices. This timer can be used for Data timestamping and for distributed control and even for Operating System synchronization purposes.

Time-aware Network Recorder

In critical systems, it is essential being able to analyze the network communications at frame level for testing and forensic purposes. Furthermore, the validity of this analysis will be constrained by the capability of the infrastructure to correlate the frames with a common time reference. For that purpose, Relyum has developed RELY-REC, a device that is able to inspect, timestamp and record regular Ethernet and high-availability Ethernet traffic, using the same PTP timing reference than the network under analysis.

As an example, due to the critical nature of communications in Electric sector, RELY-REC is an all-in-one solution specifically designed to analyze the traffic in the modern IEC 61850 Digital Substations where the use of combined HSR, PRP and PTP has generated a new challenge for the operators. This device is synchronized with a IEEE 1588-2008 PTPv2 infrastructure, that may be the same shared by the other equipment of the substation.

Time-aware Redbox Switch

Critical systems demand time-aware high-availability networking. Moreover, the complexity of the modern network infrastructures in these premises overcomes the traditional concept of “managed” device. RELY-RB is a new concept of intelligent device that integrates advanced field-proven technology for non-packet-loss redundant Ethernet, sub-microsecond synchronization and cybersecurity. This device is able to merge the whole LAN with redundant networks, to interconnect PRP and HSR networks and to extend HSR rings via QuadBox operation.

Time Sensitive Networking

Industrial Internet of Things (IIoT) offers smart infrastructure and hyper-connected devices with sensing, processing and networking capabilities. These systems will generate incredible amounts of Data, sharing the same network. Thus, it is necessary to ensure that the real-time and critical-mission messages are transferred within strict bounds of latency and reliability regardless of other network traffic.

Deterministic Ethernet solutions, like TSN, deliver streams with guaranteed bandwidth and deterministic latency. There are many features involved in the multiple standards currently under development. Relyum have a broad selection of Time Sensitive Networking products to choose from.


RELY-TSN-PCIe is the first out-of-the-box solution for Time Sensitive Networking (TSN) that allows seamless implementation of deterministic Ethernet networks and abstract user equipment and applications from these technical complexities.

This device can be used as a PCIe TSN Endpoint and as a TSN Bridge providing 2 multi-media Gigabit Ethernet ports and 2 internal ports. As an Endpoint, it offers the possibility to introduce TSN technology in the device where it is hosted, for its integration in a deterministic network.

PCI Express (PCIe) is the most extended high-speed serial computer expansion bus. It is the de-facto standard for expansion boards in PC computers and it is gaining acceptance in Industrial PCs and even in SCADA systems.

RELY-TSN-PCIe next generation is a smart pluggable board that comprises in the same device hardware and software resources based on Xilinx UltraScale™ technology to implement specialized networking, synchronization and security oriented services.