The Hirschmann BOBCAT BRS40-8TX/4SFP-EEC-HL is the most comprehensively hardened variant of the compact 12-port BOBCAT all-Gigabit switch, combining Extended Environmental Class operation from -40 to +70°C with ISA12.12.01 hazardous location certification. Part number 942170043, it delivers eight 10/100/1000BASE-TX RJ45 ports and four SFP slots for 100 or 1000 Mbit/s fiber connectivity in a 570 g PC-ABS DIN Rail housing, covering both the temperature extremes and the explosive atmosphere requirements of the most demanding industrial installation environments. The SFP slots are compatible with single-mode, long-haul, and multimode fiber transceivers, providing flexible backbone uplink options in oil and gas, petrochemical, offshore, and mining applications where both hazardous area certification and wide temperature tolerance are mandatory. The full BOBCAT software stack is retained including IEEE 802.1Qbv TSN, HIPER-Ring and MRP (IEC62439-2) redundancy, RSTP, LACP, IGMP snooping, QoS, and VLAN management. Industrial protocols cover PROFINET, EtherNet/IP, IEC61850, and Modbus TCP, while security features include 802.1X, RADIUS, secure boot, signed firmware, and DoS prevention. Power is 11 W from dual redundant 12–24 VDC inputs. Management is via USB-C, HTML5, CLI, and SNMP v1/v2/v3. The BRS40-8TX/4SFP-EEC-HL is the definitive choice for engineers requiring hazardous-area-rated, EEC-hardened, compact Gigabit switches with fiber uplink flexibility. Available from Recab, your Nordic partner for Hirschmann industrial switch solutions.