Glossary For Fire Alarm

Service Img

END-OF-LINE DEVICE (or EOL): When a RESISTOR, it is normally "paired" to an alarm panel's input or output circuit and has a specific value determined by the equipment manufacturer. A POWER SUPERVISION RELAY is often used to monitor a panel's auxiliary power output when it is used in conjunction with four wire SMOKE DETECTORS, BEAM DETECTORS, or other DEVICES which may draw power from a panels auxiliary outputs. Both these types of End-Of-Line Devices are normally installed as the last device in a CLASS "B" type circuit.

EXIT: That part of a means of egress that leads from the floor area it serves, including any doorway leading directly from a floor area, to an open public thoroughfare or to an exterior open space protected from fire exposure from the building and having access to an open public thoroughfare.

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