Connection to HSR-based Networks with RSTP Grouping Function Support
Modular Switch, DIN Rail RedBox, Embedded Module, PRP/HSR Product Lineup

MOXA announced the launch of PRP/HSR rack-mounted switch products. The PT-7728-PTP is a 24+4G modular Ethernet bridge that provides maximum network availability and flexibility for real-time applications, enabling zero-time failover and interoperability between PRP, HSR, and RSTP protocols.

The modular PT-7728-PTP switch uses 4Gbps (1Gbps X 4 channel) copper or fiber optic modules to achieve zero packet loss and zero recovery time in PRP and HSR protocols as defined by the IEC 62439-3 standard.



The PT-7728-PTP provides 24+4G modular connectivity, connecting legacy and SAN devices via copper, fiber optic, or hybrid configurations to PRP/HSR-based networks. Additionally, with the patented RSTP grouping function technology, multiple RSTP rings can be connected to HSR-based networks. A pair of PT-7728-PTP switches can migrate over a thousand RSTP devices to an HSR-based network, far exceeding the maximum of 40 hops typically allowed with RSTP links.

The PT-7728-PTP extends the lifespan of legacy devices and network infrastructure for retrofit applications and improves network availability as defined in the IEC 61850-3 standard for mission-critical applications.

Jun Chuang, Product Manager for Power Communication Systems at MOXA, stated: "This switch product demonstrated superior redundancy performance and interoperability in the 2015 PRP/HSR interoperability test conducted by UCAIug. Among the DUTs participating in this test, only the PT-7728-PTP and MOXA's PT-G503 RedBox provided dual connectivity between PRP/HSR and RSTP network segments."