alarm signal box

См. также в других словарях:

• box — n. 1) a call (BE), telephone (BE) box 2) a letter (BE) box, mailbox (AE), pillar (BE) box 3) a signal box (BE; AE has signal tower) 4) (ice hockey) a penalty box 5) a witness box (BE; AE has witness stand) 6) a music (AE), musical (BE) box 7) a… …   Combinatory dictionary

• Alarm clock — Clock radio redirects here. For the clocks synchronised by radio signals, see Radio clock. Traditional wind up (keywound), mechanical, spring driven alarm clock …   Wikipedia

• signal — {{Roman}}I.{{/Roman}} noun 1 sign/action/sound that sends a message ADJECTIVE ▪ clear, unmistakable ▪ agreed, prearranged ▪ conflicting, confusing, contradictory …   Collocations dictionary

• Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… …   Wikipedia

• Fire alarm notification appliance — A Wheelock MT 24 LSM electronic fire alarm horn and strobe. A fire alarm notification appliance is an active fire protection component. A notification appliance may use audible, visible, or other stimuli to alert the occupants of a fire or other… …   Wikipedia

• still alarm — noun : a fire alarm transmitted (as by telephone call or by voice communication with the unit directly concerned) without sounding the fire signal apparatus * * * a burglar alarm, fire alarm, or the like, that is activated silently and transmits… …   Useful english dictionary

• Manual fire alarm activation — Single action pull station. A manual call point in the UK …   Wikipedia

• Multiple-alarm fire — One alarm, two alarm, three alarm fires, or higher, are categories of fires indicating the level of response by local authorities, with an elevated number of alarms indicating increased commitment of resources. The term multiple alarm is a quick… …   Wikipedia

• National Emergency Alarm Repeater — The N.E.A.R. Warning Device. The National Emergency Alarm Repeater (NEAR) was a civilian emergency warning device in the United States. It was a 2 3 (5 7.5cm) square box designed to plug into a standard 110 volt power outlet to receive a special… …   Wikipedia

• Fire alarm box — A fire alarm box is an outdoor device used for notifying a fire department of a fire. Early boxes used the telegraph system and were the main method of calling the fire department to a neighborhood in the days before people had telephones. When… …   Wikipedia

• Letter box — This article is about boxes for depositing letters. For video framing, see letterbox. For the type of interprocess communication, see MailSlot . A letter box, letterbox, letter plate, letter hole, mail slot, or mailbox is a receptacle for… …   Wikipedia