The Hirschmann RSP35-08033O6ZT-SK9V9HPE2S is a compact fanless enhanced managed DIN rail switch from the RSP35 series, offering the same mixed-media port architecture as its dual-supply counterpart — four 10/100BASE-TX RJ45 ports, four 100 Mbit/s SFP fibre slots, and three 100/1000 Mbit/s Gigabit SFP uplinks — but powered by a single wide-range input accepting 60–250 VDC or 110–230 VAC, enabling direct integration into high-voltage DC buses and AC mains supplies found in substations and heavy industrial sites. The full enhanced redundancy suite covers PRP at 1 Gbit/s, HSR at 1 Gbit/s, Fast MRP, HSR-PRP RedBox, SAN RedBox, MRP manager and client, RSTP with guards, and LACP link aggregation, while L3 capabilities add NAT, static routing, OSPFv2, RIPv2, and VRRP for advanced network architecture designs. Industrial protocols including PROFINET, EtherNet/IP, Modbus TCP, and IEC 61850 MMS are natively supported alongside PTPv2 Boundary and Transparent Clock for IEEE 1588 timing. Security features include 802.1X port access control, RADIUS, VLAN ACLs, HTTPS certificate management, signed firmware images, and DoS prevention. Approved to IEC 61850-3, IEEE 1613, CE, and FCC standards and operating from 0 to 60°C, this switch is well suited for electrical substations, grid automation, oil and gas platforms, and fibre-dense rail and utility networks across the Nordic and Baltic regions. Available from Recab, your Nordic partner for Hirschmann industrial switch solutions.