NSI / Leviton DS Control Module CPU/PCA Tweet Description The NSI PC315-130 DS Control Module CPU/PCA is a replacement internal part (CPU) for the NSI DS Dimmer Control Module. Details Additional Category Tags: Misc. Parts Category: Lighting & Studio Manufacturer Catalog Number: PC315N00130 Model: NSI / Leviton PC315-130 Product Manufacturer: NSI / Leviton Subcategory: Lighting Accessories