FOUNDATION fieldbus and PROFIBUS-PA, IP20 Junction Box with Short-circuit Protection, 4-channel, Operating voltage 9…32 VDC, Junction box for DIN rail mounting, Short-circuit protection per drop line/spur, Pre-assembled terminating resistor: JRBS-40TR (sold separately), Cable shielding: Capacitive or direct connection established via two M5 threaded bolts, Aluminium housing, Entity and FISCO compliant according to IEC 60079-11