Hirschmann RSP20 Managed Industrial Ethernet Switch
Overview
The Hirschmann RSP20 is a managed, fanless DIN-rail industrial Fast Ethernet switch built for substation automation, process plant, and industrial campus networks that demand deterministic, high-availability connectivity. Available in configurations mixing 10/100 Mbit/s copper RJ45 ports with SFP fiber slots across an 11-port total, the RSP20 series lets network designers select the copper-to-fiber ratio that matches their site’s cabling architecture, from copper-heavy local device attachment to fiber-dominant backbone connectivity across large substation yards.
Seven Star LLC supplies the Hirschmann RSP20 as an experienced supply partner of Hirschmann, a Belden brand, supporting industrial networking, substation automation, and process control system integrators across Muscat, Sohar, Salalah, and the wider Sultanate of Oman. Genuine Hirschmann switches, SFP modules, and industrial networking accessories are available through Seven Star LLC for power, oil and gas, and manufacturing customers throughout the GCC.
Measurement and Operating Principle
Running HiOS Layer 2 firmware, the RSP20 provides Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR) per IEC 62439-3 for zero-downtime failover, Media Redundancy Protocol (MRP) per IEC 62439-2 in both manager and client roles, Rapid Spanning Tree Protocol (RSTP) per IEEE 802.1D-2004, and Link Aggregation Control Protocol (LACP). These redundancy mechanisms allow the switch to maintain network connectivity through cable breaks or device failures without the packet loss or reconvergence delay of legacy spanning tree implementations, critical for protection and control traffic in substation and process automation networks.
Industrial protocol support spans PROFINET, EtherNet/IP, Modbus TCP, and IEC 61850 MMS server and switch models, alongside PTPv2 and IEEE 802.1AS precision time synchronization for applications requiring tightly coordinated timing across distributed automation nodes. Advanced VLAN, QoS, IGMP snooping, and jumbo frame support allow the RSP20 to prioritize and segment critical control traffic from general data traffic sharing the same physical network infrastructure.
Engineering Design of the Hirschmann RSP20
The RSP20 is built into a compact, fanless metal enclosure measuring approximately 90 x 164 x 120mm and weighing around 1.3kg, rated for continuous operation from 0°C to +60°C without active cooling – important for sealed cabinet installations in substations and process areas where fan maintenance is impractical. Dual redundant 24/36/48V DC power inputs across an 18–60V DC range, drawing approximately 18W, protect against a single power supply failure taking the switch offline.
Security features include IEEE 802.1X port-based authentication, RADIUS integration, signed firmware images to prevent unauthorized firmware tampering, ingress VLAN-based access control lists, MAC-based port security, and audit trail logging – capabilities increasingly required by cybersecurity standards governing critical infrastructure networks. SFP slots accept single-mode, long-haul, and multi-mode fiber modules, allowing the same switch chassis to be configured for a wide range of fiber reach and media requirements across a project.
Key Features
- Managed, fanless DIN-rail Fast Ethernet switch, up to 11 ports (RJ45 + SFP mix)
- PRP and HSR per IEC 62439-3 for zero-downtime seamless redundancy
- MRP (manager/client) and RSTP redundancy protocols under HiOS Layer 2
- Certified to IEC 61850-3 and IEEE 1613 for substation environments
- PROFINET, EtherNet/IP, Modbus TCP, IEC 61850, PTPv2 protocol support
- 802.1X, RADIUS, signed firmware, VLAN ACLs, MAC port security
- Dual redundant 24/36/48V DC power input, 18–60V DC range
- Operating temperature 0°C to +60°C, IP20 protection
Industrial Applications
The RSP20 is deployed across electrical substation automation networks, large industrial campus Ethernet backbones, and process plant automation infrastructure wherever IEC 61850-3-certified, high-availability fiber and copper switching is required. Its combination of PRP/HSR seamless redundancy and extensive industrial protocol support makes it well suited to critical infrastructure networks where even brief network interruptions can compromise protection relay coordination or process safety functions.
Across Oman’s power generation, oil and gas, and industrial sectors, from substations to process plants in Sohar and Salalah, Seven Star LLC supports network and automation engineers specifying the Hirschmann RSP20 for new industrial Ethernet infrastructure and legacy switch replacement programs. As a trusted Hirschmann (Belden) supplier, Seven Star LLC provides genuine switches, SFP modules, and network design support across Muscat and the wider GCC.
Technical Specifications
| Model | Hirschmann RSP20 series |
|---|---|
| Ports | Up to 11 total (RJ45 10/100 Mbit/s + SFP fiber, configuration dependent) |
| Redundancy Protocols | PRP, HSR (IEC 62439-3), MRP (IEC 62439-2), RSTP (IEEE 802.1D-2004), LACP |
| Industrial Protocols | PROFINET, EtherNet/IP, Modbus TCP, IEC 61850 MMS, PTPv2, IEEE 802.1AS |
| Security | 802.1X, RADIUS, signed firmware, VLAN ACLs, MAC port security, audit logging |
| Power Input | 2 x 24/36/48V DC redundant, 18–60V DC range, ~18W consumption |
| Operating Temperature | 0°C to +60°C |
| Dimensions / Weight | ~90 x 164 x 120mm / ~1.3kg |
| Protection Rating | IP20 |
| Certifications | IEC 61850-3, IEEE 1613, CE, FCC, EN61131 |
| Mounting | DIN rail |
Why Choose Seven Star LLC for Hirschmann Industrial Network Switches
A managed switch’s redundancy protocol and VLAN configuration only protect your plant network if they are actually set up to match your real network topology, since a ring-redundancy feature that is never configured correctly provides no protection at all when a link fails. Seven Star LLC works with your OT and IT teams to confirm the correct RSP20 configuration for your plant network architecture before order confirmation, backed by our established Hirschmann (Belden) supply network across Oman and the wider GCC. We also support refineries and manufacturing plants across Muscat, Sohar, and Salalah with spare switch and SFP module planning for critical network segments, so a single switch failure never becomes an extended plant communications outage.
Request a Quote for Hirschmann RSP20 Managed Industrial Ethernet Switch
Contact Seven Star LLC, an experienced supply partner for Hirschmann (Belden) in Oman and the GCC, for pricing, port configuration, and SFP module selection support for the RSP20 managed industrial Ethernet switch. Our team supports substation and industrial network infrastructure projects across Muscat, Sohar, Salalah, and the wider Sultanate of Oman with genuine Hirschmann networking equipment.
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Hirschmann switch families listed here
Four managed switch lines appear on this page. The RS20 and RS30 are compact OpenRail switches, shown here as the RS20-1600T1T1 with 16 Fast Ethernet ports and an RS30, the version with two Gigabit ports. The RSP20 belongs to the RSP rail switches, which were introduced with PRP and HSR redundancy for networks that need high availability. The BRS20 belongs to the newer BOBCAT family. The OZD 485 G12-1300 PRO is a repeater that carries RS-485 signals over fiber in line, star or ring layouts. The 154/06 crane boom cable reel assembly is a different kind of product and is not network equipment.Where Hirschmann equipment is used
Hirschmann industrial switches connect PLCs, drives, protection relays and HMIs in power distribution, oil and gas facilities, water plants, transport systems and factories. Searches such as managed industrial networking and harsh environment network solutions describe the same need: Ethernet that tolerates heat, vibration and electrical noise, with redundancy functions. Many GCC plants standardized on these switches years ago and now need matching units.Ordering Hirschmann parts: what we need
Hirschmann product codes are long because every position defines hardware. BRS20-12009999, for instance, fixes the port count and types, and further characters set temperature range, supply voltage, approvals and software level. Send the complete code and the order number from the label, plus the firmware version if the unit must join an existing ring. For SFP modules give fiber type and distance. For the cable reel send the crane make, model and the reel part number.Browse Hirschmann (Belden) products by category: Industrial Communications, Material Handling & Lifting Equipment.
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