ARS12-B2-IA24-2. Ethernet-APL rail field switch with 24 intrinsically safe Ex ia spur ports and spring terminals. Managed Ethernet-APL field switch for process industries. PROFINET MRP, S2 redundancy and dynamic reconfiguration. 2 ports each for 1000BASE-T and SFP transceivers. Redundant power input 20 VDC ... 60 VDC. Installation in Zone 2. Physical layer diagnostics at the spur. Configuration and diagnosis with FDI, web interface, PROFINET device functions and SNMP. Support of network security. Powered spur ports intrinsically safe Ex ia according to 2-WISE. Support of Ethernet-APL and PROFIBUS PA instruments