Sound and light touch switch control (fire control terminals) switch fire strong dual controlled switch from strong principles just as dual-control switch mechanical; (light) controlled, touch the internal circuit board automatically switch wiring:

By emergency lighting distribution box a branch introduced double controlled switch of a touch points, by with branch connection contact players Hou connection double controlled switch of another touch points, double controlled switch of moving touch points received lamps, no fire alarm Shi, through contact players of FireWire not charged, therefore touch points can put lamps close (introduction contact players of electrical mutual lock); Dang fire Shi, fire signal supply contact players coil power, will often closed into often opened, power through contact players Hou arrived double controlled switch of touch points, at this time because double controlled switch two a touch points are has electric, Switch in any State can light up lamps (turn off can't turn off), so implement strong; this feature applies to alarm systems.

General emergency lighting control are is with double controlled switch to do comparison reasonable, to plus following electric to achieved of, sound light or touch switch control following electric of often closed touch points, through general power to points bright emergency lamp, dang has fire strong up signal Shi, module issued signal connected fire power action following electric coil, suck collection moving collection touch points (disconnect general power) points bright emergency lamp.