4100-1273 SIMPLEX

4100-1273 SIMPLEX PHONE CLASS A NAC ADAPTER The 4100ES Network Display Unit is a 4120 network level annunciator and manual system/point controller. It provides alphanumeric annunciation for up to 12,000 Network points and/or point lists and can be programmed to function as the network master controller for Alarm Silence, Trouble Acknowledge, and System Reset.