D25User's Manual GE Grid Solutions166 994-0081-3.00-21 GE Information123456798Not Connected+ DC- DC+ V- VNot ConnectedPower SupplyDB9 MaleConnecting DNP3 I/O modules (High Voltage)For a High-Voltage (HV) DNP3 I/O Module, for example: WESTERM D20SZ (517-0249-ML):1. Interconnect the DNP3 link cabling between each DNP3 I/O module.2. Connect pins 1 and 2 (and also pins 3 and 4 if a redundant power supply is used) onTB2 to an External Power Supply (40 to 150 VDC) as shown below:Note: The location of the External (Ext) Power Supply terminal varies between WESTERM I/O moduletypes.To D25 (RTU Master)To Field EquipmentTo Field EquipmentTo Field EquipmentTo Ext PowerTo Ext PowerTo Ext PowerTo Ext PowerCable: D25 (RTU Master)GE Part Number: 977-0502 External DNP 3I/O ModulePower Supply