Editing Smoke detector (section)

=== Conventional ===
The word "conventional" is slang used to distinguish the method used to communicate with the control unit in newer addressable systems.<ref name="ssspl" /> So-called "conventional detectors" are smoke detectors used in older interconnected systems and resemble electrical switches by their way of working.<ref name="ssspl" /> These detectors are connected in parallel to the signaling path so that the current flow is monitored to indicate a closure of the circuit path by any connected detector when smoke or other similar environmental stimuli sufficiently influences any detector.<ref name="ssspl" /> The resulting increase in current flow (or a dead short) is interpreted and processed by the control unit as a confirmation of the presence of smoke and a fire alarm signal is generated.<ref name="ssspl" /> In a conventional system, smoke detectors are typically wired together in each zone and a single fire alarm control panel usually monitors several zones which can be arranged to correspond to different areas of a building.<ref name="ssspl" /> In the event of a fire, the control panel can identify which zone or zones contain the detector or detectors in alarm. However, they cannot identify which individual detector or detectors are in a state of alarm.<ref name="ssspl" />