The N-ANN-I/O Firelite is an LED driver module that can be used in a wide variety of applications including as an interface with the Fire Alarm Control Panel (FACP) to drive most customized graphic annunciators. It comes in a plastic enclosure that may be mounted inside a custom annunciator or accessory cabinet and can drive up to 40 LEDs. The N-ANN-I/O and the FACP communicate over a two-wire serial interface employing the ANN-BUS communication format. The N-ANN-I/O Firelite can use two additional wires for 24-volt DC power. A single four-conductor unshielded cable may be used for both power and data communications. Up to eight ANN-BUS devices may be connected to the ANNBUS of each FACP. - N-ANN-I/O Firelite connects to the ANN-BUS terminal on the FACP and requires minimal programming. - Each N-ANN-I/O module drives up to 40 LEDs. - Programmable to indicate activity for points or zones. - Compatible with the NFW-50, SFP-5UD, and SFP-10UD. - Can be remotely located up to 6,000 feet (1,829 m) from the panel. - May be powered by 24 VDC from the host FACP or by remote power supply (requires 24 VDC). - Up to eight ANN-BUS devices may be connected to the ANN-BUS of each FACP.