GE Grid Solutions D25User's ManualGE Information 994-0081-3.00-21 165Connecting DNP3 I/O Modules (Low Voltage)For a Low Voltage (LV) DNP3 I/O module, connect the:• Interconnect cabling between each DNP3 I/O module, and• Power to the last DNP3 I/O module of the chain.DNP3 I/O Module (LV) Interconnect CablingThe DNP3 I/O module interconnect cabling is shown below:First DNP I/OModuleSecond DNP I/OModuleJ1To Field EquipmentTo Field EquipmentJ1J2J2Daisy- chainedto other DNP I/OModulesLast DNP I/OModuleTo Field EquipmentJ1J2Pin14567OtherFunctionGND+DC1- DC1TX/RX2TX/RX2Not UsedTo RTU MasterTo Power SourceRTU MasterCableGE PartNumberIP- Server 977- 0503J1J2Cable: D25 (RTU Master)GE Part Number: 977-0502To D25 (RTU Master)To Field EquipmentTo Field EquipmentTo Field EquipmentTo Power SourceJ1J2J1J2J1J2Cable: Power SourceGE Part Number: 997-0500Standard Cables DB9male to DB9 maleGE part number: 977-0089After DNP3 I/O modules have been interconnected, you are now ready to connect power to the DNP3 I/Omodules. See the following subsection: DNP3 I/O module (LV) connection to the Power Source.DNP3 I/O Module (LV) Connection to the Power SourceConnect the power supply to the last DNP3 I/O module in the chain.The cable from J2 on the last DNP3 I/O module to the power source (GE part number 977-0500) providesthe connections shown in the following wiring diagram.
