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Hirschmann BRS20-8TX 942170-002 BOBCAT Managed Industrial Ethernet Switch
Managed industrial Fast Ethernet switch: 8 × 10/100Base-TX RJ45. Fanless DIN-rail design with TSN, redundant power inputs, industrial protocols, and secure managed networking.
Eight Managed Fast Ethernet Ports in a Fanless DIN-Rail Switch
The Hirschmann BRS20-8TX (part number 942170-002) is a managed industrial Fast Ethernet switch with 8 ports. It belongs to the BOBCAT series, and its time-sensitive networking capabilities support deterministic, real-time communication. The managed feature set also gives administrators control over traffic, redundancy, security, and diagnostics.
With eight 10/100Base-TX RJ45 ports, this model gives a compact machine cell one managed point for connecting controllers, operator interfaces, drives, and remote I/O. Its fanless construction removes a routine maintenance item, while dual 12–24 V DC inputs help the network remain available when it is powered from a properly designed redundant supply system.
🔌 Port Configuration
8 × 10/100Base-TX RJ45
⏱️ TSN-Ready Platform
Supports time-sensitive industrial Ethernet traffic and precise network timing
⚡ Redundant DC Power
Two 12–24 V DC inputs; typical power consumption is 6 W
🛠️ Fanless DIN-Rail Design
No cooling fan to maintain; compact IP30 construction
Key Features & Benefits
- Managed Industrial Ethernet: VLAN, QoS, flow control, traffic shaping, jumbo frames, and multicast management help organize mixed automation traffic
- Resilient Network Options: HIPER-Ring, MRP, RSTP, link aggregation with LACP, link backup, and redundant network coupling support recovery planning
- Secure Access: IEC 62443-4-2-certified capabilities include 802.1X, RADIUS, access control lists, configurable password policies, audit trails, and HTTPS certificate management
- Multiple Management Paths: HTML5 management, CLI, SNMP v1/v2/v3, SSHv2, HTTPS, LLDP, TFTP, SFTP, SCP, and OPC UA provide flexible administration
- Industrial Protocol Profiles: Supports EtherNet/IP, IEC 61850, Modbus TCP, and PROFINET integration
- Precise Time Synchronization: PTPv2 transparent and boundary clock functions, IEEE 802.1AS, and SNTP support coordinated industrial communications
- Built-In Diagnostics: LEDs, signal contact, syslog, RMON, port mirroring, cable testing, link monitoring, and configuration checks improve troubleshooting visibility
- Local Service Interface: USB-C supports local management and device replacement workflows
- Panel-Friendly Power: Dual 12–24 V DC inputs and a plug-in signaling contact simplify industrial control-panel integration
⚠️ Keep Each Copper Ethernet Segment Within 100 m
The listed twisted-pair segment length is 0–100 m. Plan the panel layout and cable route so every copper link remains within that limit, and use fiber or an additional network node when the required distance is longer.
🔐 Managed Security and Configuration
The BOBCAT management platform supports role-based administration, secure remote access, VLAN-based access restrictions, local and RADIUS authentication, configuration rollback, and backup to a remote server. Plan these settings before commissioning so the switch enters service with only the management paths and network access the application requires.
Technical Specifications
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Model
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BRS20-8TX
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Part Number
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942170-002
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Series
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Hirschmann BOBCAT BRS20
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Switch Type
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Managed industrial Fast Ethernet switch
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Total Network Ports
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8
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Copper Interfaces
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8 × 10/100Base-TX RJ45
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Fiber / SFP Interfaces
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None
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Operating Voltage
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2 x 12 - 24V DC
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Power Consumption
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6 W
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Heat Dissipation
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20 BTU (IT)/h
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Power / Signal Contact
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1 plug-in terminal block, 6-pin
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Digital Input
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1 plug-in terminal block, 2-pin
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Local Management
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USB-C
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Copper Segment Length
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0-100 m
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Supported Topology
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any
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Operating Temperature
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0 C to +60 C (32 F to 140 F)
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Storage / Transport Temperature
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-40 C to +70 C (-40 F to 158 F)
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Relative Humidity
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1% to 95%
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MTBF at 25°C
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4467842 hours
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Dimensions (W × H × D)
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73 mm x 137.5 mm x 103.5 mm (2.87" x 5.41" x 4.07")
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Weight
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420 g
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Mounting
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DIN Rail
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Protection Class
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IP30
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Housing
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PC-ABS
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Approvals / Standards
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cUL 61010; CE, FCC, EN61131, EN62368-1
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Verify power, wiring, fiber, firmware, and environmental requirements against the BOBCAT manual before commissioning. Optical reach depends on the complete link budget and, for SFP models, the selected transceivers.
📋 Installation Overview
Before Commissioning:
1. Confirm the Environment: Check enclosure protection, clearances, and the 0 C to +60 C (32 F to 140 F) operating range
2. Mount the Switch: Secure the unit to a grounded DIN rail inside the control enclosure
3. Wire Power: Connect the 12–24 V DC supply inputs and signaling contact according to the manual
4. Connect Network Media: Use twisted-pair copper segments up to 100 m
5. Apply a Base Configuration: Set management access, VLANs, redundancy, time synchronization, and industrial protocol profiles
6. Harden Access: Replace default credentials, limit management interfaces, and configure authentication and logging
7. Test the Network: Verify every link, alarm contact, redundant path, and required recovery behavior before production use
Installation and electrical work should be performed by qualified personnel in accordance with the BOBCAT manual and applicable codes.
📦 What's Included
Included with the Device:
• Hirschmann BRS20-8TX switch (942170-002)
• Terminal block for supply voltage and signal contact
• Safety and general information sheet
Compatibility & Application Reference
Hirschmann BOBCAT Managed Switch Comparison
📄 Documentation & Support Resources
Hirschmann BRS BOBCAT Series Manual:
Managed Ethernet Switch Comparison: Compare Hirschmann managed industrial Ethernet switches
Local Management: USB-C supports local setup and device-replacement workflows; configuration can also be managed through the BOBCAT software interfaces
Part Number Note: Order Hirschmann BRS20-8TX using part number 942170-002 (vendor part number 942170002). Confirm the required port media, operating range, and accessories before purchase.
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