CDT 2120CDTMAPNET562-562P Panel Board is a MAPNET II panel board designed to work with the 2120 CDT Communicating Device Transponder in MAPNET II networks used by older fire alarm panels. It enables two-wire MAPNET II communications to CDT devices—data and power share a single shielded twisted pair—providing supervised status and device addressing to the control panel. The 562-series family includes CDT-related panel boards such as 562-688, 562-940, and other 562‑xxx PCB assemblies used with 2120 CDT; the 562-940 is listed as PCB ASSY 2120 CDT ZAM in price lists. In the 2120 CDT system, MAPNET II circuits can host up to 128 devices on a single MAPNET II circuit.
