PR electronics, 7908-ABBS8-C1H, System 9000 backplane: ABB, S800, 8 x 9202xxBFeatures:Provides safe, easy wiring between the backplane and non I.S. automation systems using standard prefabricated I/O cablesDirect, Redundant and Duplicate signalling - including HART I/ORobust, compact high-end design solution for 8 system 9000 unitsDigital output and LEDs indicate backplane system statusApplication:The 7908 backplane is a compact and robust solution that enables a safe and easy connection of PR system 9000 IS device signals into standard automation systems.Standard automation system cables and connectors are used to link the backplane to the I/O cards.The backplane can be used for Direct, Redundant, Duplicate signalling including HART I/O System connectivity (HART MUX).The system 9000 devices isolate and convert AI, AO, DI and DO signals coming from, or going to the I.S. classified area, and routes those signals to a system automation I/O card.The system 9000 units maintain a SIL2/SIL3 level of functional safety, even when mounted in the backplane solution.Technical characteristics:Robust, compact high-end design that holds 8 system 9000 units.Digital output indicates status of the 9000 devices and primary/back-up power supplies.Flexible 24 VDC supply voltage and redundant power supply connection solution.Mounting / installation / programming:Flexible horizontal/vertical panel or wall mounting in the Safe or Zone 2 / Div 2 areas.System 9000 devices easily snap ON and OFF using piano keys, and devices can be hot-swapped.Tag number and ID labels are easily mounted and read by using the dedicated piano key spacer.Wide temperature operation range: -20...+60°C.