Fire alarm module
AssigneeComputionics Limited
InventorsAndrew Foster, Anthony Roberts
Life of this patent
Estimating the term…
Abstract
A fire alarm system comprises one or more fire alarm addressable modules (3), which interface with a fire alarm loop (1) along which data and power may be transmitted, and a voice alarm system comprising one or more amplifiers (6) connected to respective speakers (7) for transmitting voice alarm messages. The or each fire alarm module comprises a message store (22), means for interfacing with an amplifier (6) of the voice alarm system, means for interfacing with the fire alarm loop (1) and means for interpreting signals from the loop (1) and for selecting an appropriate message for transmission from the message store (22).
Claims23
A fire alarm addressable module, comprising:
- means for interfacing with an amplifier forming part of a voice alarm system;
- means for serially connecting the fire alarm addressable module in a fire alarm loop along which data and power may be transmitted;
- a message store for storing one or more alarm messages;
- and
- means for interpreting signals received from the fire alarm loop and for selecting an appropriate message for transmission from the message store to the amplifier.
A fire alarm system comprising a fire alarm loop along which data and power may be transmitted, a voice alarm system comprising one or more amplifiers, each amplifier being connected to one or more speakers for transmitting voice alarm messages, and one or more fire alarm addressable modules, the one or more fire alarm addressable modules including means for interfacing with the amplifier that forms part of the voice alarm system;
- means for serially connecting the fire alarm addressable module in the fire alarm loop a message store for storing one or more alarm messages;
- and means for interpreting signals received from the fire alarm loop and for selecting an appropriate message for transmission from the message store to the amplifier.
A fire alarm system comprising a fire alarm loop along which data and power may be transmitted, a voice alarm system comprising one or more amplifiers, each amplifier being connected to one or more speakers for transmitting voice alarm messages, and one or more fire alarm addressable modules, the one or more fire alarm addressable modules including means for interfacing with the amplifier forms part of the voice alarm system;
- means for interfacing with the fire alarm loop along which data and power may be transmitted;
- a message store for storing one or more alarm messages;
- and means for interpreting signals received from the loop and for selecting an appropriate message for transmission from the message store
- including a plurality of fire alarm addressable modules, each including a message store for storing a plurality of alarm messages and each disposed serially in said fire alarm loop.
In an alarm system that has a fire alarm loop along which data and power signals may be transmitted and one or more amplifiers being respectively coupled to one or more speakers for transmitting voice alarm messages, at least one fire alarm addressable module that comprises, means for coupling said at least one fire alarm addressable module in series in said fire alarm loop, an audio terminal for connecting said fire alarm addressable module, via an audio line, to said one or more amplifiers, a massage store for holding one or more alarm messages, means for monitoring and interpreting signals transmitted on said fire alarm loop, and means responsive to said means for monitoring for selecting one of said alarm messages stored in said message store for transmission to said audio line.
Dependencies are inferred from the claim text.