Johnson Controls NU-N2B101-0 N2 Communications Bus Submodule [] en Tempe, Arizona, USA

. . . . . The components of the N2 Bus are the N2 Bus Submodule (NCM101/102 only), communication terminal board, repeater, enclosure, fiber optic modem (optional), cable, and surge protector.
N2 Submodule (NU-N2B101-0)--The N2 Submodule is a small plug-in unit for the NCM101 and NCM102. (The NCM401 can also use this submodule if for some reason it is no longer used as a migration NCM.) It is an interface device that the NCM101/102 requires to communicate over the N2 Bus. The N2 Submodule is required for every NCM101/102 that communicates with any N2 device, regardless of whether the N2 device is within the same NCU or remote from the NCU.
Note: The NCM200 contains a built-in N2 interface and the NCM401 does not use the N2 Bus Submodule when the NCM401 is used for migration applications.. Johnson Controls. Johnson Controls. NU-N2B101-0.