8000 Zone2.pdf

Module carriersExternal Power12VBussed FieldPower8711-CA-NScontinuedBIMNSMI/OI/OI/OI/OMainPSURedundant.PSU1234F.T. F.T. F.T. F.T.Earth/ground barterminal (x2)DILswitchesLAN ATerminalsLAN BTerminalsField wiringcable-shield terminalsRailbusConnectorLAN INTERFACEPOWER SUPPLY CONNECTIONSTerminalAssignmentExternal PowerBussed Field Power1 Rx +2 Tx +1 3 51 3 51 2 3 4 5 6 1 2 3 4 5 6 7 83 Rx –4 Tx –5 Gnd6 Gnd2 4 6Each LAN has duplicate connectionswired in parallel - pin 1 to pin 1, pin2 to pin 2, etc.LAN DIL SWITCHESOne switch block per LAN. Operating mode set with switches.Mode 1: RS422 –1 2 32 4 6Mode Switch positions TerminationONONONTerminal External Power Bussed FieldPower1 Test Point 1 I/O Modules 1 & 22 0 V –ve (or Neutral)3 +12 V I/O Modules 1 & 24 +12 V +ve (or Live)5 0 V I/O Modules 3 & 46 Test Point 2 +ve (or Live)7 Not applicable I/O Modules 3 & 48 Not applicable –ve (or Neutral)}}}}ON ON OFFMode 2: RS485 –no terminationMode 3: RS485terminated1 2 3ON ON OFF+1 2 3–220WPins for power supplies are provided in pairs. This enables one pin to beused for the supply input and the second to loop to anotherconnector, when required.Mode 4: RS485terminated and biasedOFF OFF OFF1 2 3+V T390W+220W–390WEUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283AMERICAS Tel: +1 603 926 0090 Fax: +1 603 926 1899ASIA PACIFIC Tel: +65 487 7887 Fax: +65 487 7997E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.comJune 2004