Network Display Units for 4120 network

Media cards for 4120 Modular Network Interface Cards

The 4100ES NDU with Voice Command Centre (VCC) is a 4120 network level annunciator and manual system/point controller with optional network voice control equipment. 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.