Expansion module with 4 analog inputs (4–20 mA), 4 alarm relays with potential-free SPDT contacts and 2 analog outputs (4–20 mA) for the connection to the PolyGard®2 Gas Controller GC-06. Up to 7 expansion modules can be connected either centrally at the controller or distributed anywhere along thecommunication bus.For the field bus output there is an integrated overload and reverse polarity protection. A further field bus outputwith repeater fuchtion is provided in addition.APPLICATIONExpansion of the analog inputs and outputs, as well as of the alarm relays of the GC-06 Gas-Controller system. FEATURES• 4 analog inputs, 4–20 mA, for analog sensors• 4 alarm relays with SPDT contacts, potential-free, max. 250 VAC, 5 A; 30 V DC, 2 A• 2 analog outputs, 4–20 mA, with selective signal output for special mode, fault, etc.• Integrated reverse polarity and overload protection for field bus output• 2nd field bus output with repeater function• Suitable for rail mounting (distribution box
