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  • noun

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an indicator that announces which electrical circuit has been active (as on a telephone switchboard)

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References in periodicals archive ?
A Bluetooth status annunciator is located directly above the Bluetooth control button.
Other products include protocol converters, Substation Alarm Annunciators, Terminal Servers, modems, and Source Code Libraries.
During this period alarm annunciators were found at the process end of the application and/or within centralised control rooms.
the Girard, Ohio, manufacturer of advanced digital control systems, has introduced the newest model in its digital annunciator product line.
4 says: "On board submarines, the officer in charge of the control room (officer of the deck) and the officer in charge of the maneuvering station (engineering officer of the watch), diving officer of the watch, and chief of the watch shall have air-line masks with annunciators available for use.
Customers are no longer constrained by short cable runs, proprietary networks and local annunciators, enabling organizations to take advantage of fast, wide area coverage and reliable solutions.
The annunciators provide audible and visual fault indicators, and can be upgraded to provide alphanumeric paging.
INTRODUCTION, METHODOLOGY & PRODUCT DEFINITIONS Study Reliability And Reporting Limitations I-1 Disclaimers I-2 Data Interpretation & Reporting Level I-2 Quantitative Techniques & Analytics I-3 Product Definitions And Scope of Study I-3 Fire Alarm Panels I-4 Conventional Fire Alarm Panels I-4 Addressable Control Panels I-4 Voice Evacuation Systems I-4 Fire Alarm Devices I-4 Annunciators I-5 Notification Devices I-5 Audible Alarms I-5 Visual alarms I-5 Manual Pull Stations I-5
Tenders are invited for replacement of existing fire control panels and remote annunciators.
Rows of LED annunciators warn of specific channel alarm conditions.
There are three annunciators on the front of the case, including a battery annunciator that blinks red when the device is charging, a 1-1 Bluetooth annunciator 1:7:11 that's steady blue when irirtra connected, or flashing blue when it's not.
The Intelli-Barrier Automatic Vehicle Intrusion System integrates vehicle barriers with various state-of-the-art threat detection sensors, including CCTV, laser-curtain intrusion detection, wide area lighting, and annunciators.
For example, there are 101 segments in a semicircular bargraph to indicate process trend with one percent accuracy, a seven segment, 6-digit display that indicates with high accuracy and resolution the process in engineering units, or message/command prompts; and four alarm annunciators illuminate when an alarm condition occurs.
has introduced remote monitoring, alarming and control system designed for remote use on equipment using Murphy Mark III annunciators or similar control systems.