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Connector RJ11/Terminal Block 6 pin, Battery Sense DC-UPS Size 4 (Aux )
$86.04
Connector RJ45/Terminal Block 4 pin, DC-UPS Size 3 and Size 4 (Aux 2) Modbus
RJ45 Three way "Daisy Chain" , Connect DC-UPS Size3 (Aux2) to RS485
RJ11 Three way coupler Connect, DC-UPS Size4 (Aux1) to external sensor
$126.37