ABB NE870 User Manual
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Contents
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3BSE08315916Section 2 Interface specificationsFigure 4. In/Out Directions DescriptionPower ConnectionNE870 supports redundant power connection. The positive inputs are +DC1 and+DC2, the negative input for both supplies are –COM. Connect the primary voltage(e.g. +24 VDC) to the +DC1 pin and return to one of the –COM pins on the powerinput.ConsolePosition Direction Description1 In/Out BI_DA+2 In/Out BI_DA–3 In/Out BI_DB+4 In/Out BI_DC+5 In/Out BI_DC–6 In/Out BI_DB–7 In/Out BI_DD+8 In/Out BI_DD–Shield In/Out Connected to PEPosition Direction Description1 Out VBUS2 In/Out D–3 In/Out D+4 Out GNDShield In/Out Connected to PE |
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