BOBCAT BRS20-4TX/2FX-SM-HL – Hazardous Location 32 km Fiber TSN Switch by Hirschmann, a Belden Brand

The Hirschmann BOBCAT BRS20-4TX/2FX-SM-HL is the standard-temperature hazardous location variant of Hirschmann’s compact 6-port single-mode fiber managed Fast Ethernet BOBCAT switch, certified to ISA12.12.01 for deployment within or adjacent to Ex-classified zones in oil and gas processing, offshore platforms, petrochemical facilities, and chemical manufacturing environments. Manufactured by Hirschmann, a Belden brand, it combines 4x 10/100BASE-TX RJ45 copper ports with two 100BASE-FX single-mode SC fiber uplinks reaching up to 32.5 km on 9/125 µm single-mode fiber with a 16 dB link budget, making it the right choice when a hazardous area field node must also serve as a long-haul fiber backbone connection point across large process facilities or remote outdoor infrastructure. The switch is housed in a 57 mm wide fanless PC-ABS DIN rail enclosure rated to IP30 and 0 to +60°C, drawing only 7 W from dual redundant 12 to 24 VDC power inputs — practical for Ex-zone installations where heat generation and power availability are constrained. TSN 802.1Qbv support across interfaces 1/1 to 1/3 delivers deterministic real-time Ethernet communication, and the full industrial protocol suite — PROFINET, EtherNet/IP, Modbus TCP, IEC61850 — ensures compatibility with DCS, PLC, and SCADA platforms across the process industries. Redundancy spans HIPER-Ring, MRP (IEC62439-2) as both client and manager, RSTP, LACP, Link Backup, and Redundant Network Coupling. Security capabilities include Secure Boot, signed firmware, 802.1X port access control, RADIUS authentication, VLAN-based ACLs, and DoS prevention. With an MTBF of approximately 2.64 million hours and a 60-month guarantee, the BRS20-4TX/2FX-SM-HL delivers long-term reliability for process industry field installations where switch replacement is operationally demanding. Available from Recab, your Nordic partner for Hirschmann industrial switch solutions.