Digital series ballast XV4D wiring: For the D-series XV4D ballasts, the input connector has three pins for remote control of the ballast. Depending on the XV4D model (SPM or DPM), the wiring has a different meaning.
XePulse™ 1 (legacy model) : The original XePulse™ 1 model was designed for all of our HID ballasts driving D1 and D2 bulbs. A modification of this model was made (D+) for using it for remotely controlling on/off for suitable ballasts with 3-pin input connectors, like XV3A, XV3D, XV4A, XV4D.
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