Simplex 4100-5115 NAC Expansion Module, 3 NACs, Class A/B

The 4100-5115 Expansion NAC Module (XNAC) is an option board that provides three NACs in addition to the three NACs already on the XPS. The XNAC plugs onto the XPS. The XNAC has three NACs, each rated at 3 A. As on the XPS, there is one status LED for each NAC.