Armtel Public Address PA Systems

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DWEx is designed for use in potentially explosive gas environment, except for mines and their ground structures that are mine gas hazardous according to explosion proof marking:

• 1Ex d e ib IIC T6 Gb Х (IEC 60079-0-2011)• II 2 G Ex d e ib IIC T6 Gb (EN 60079-0:2012)

Explosion proof in is achieved due to the insulation of its electrical circuits from interaction with potentially dangerous gas environment, by placing them in flame proof casing – explosion proof box, as well as providin the electrical connections of speaker, microphone and pushbutton switches through “ib” spark-safe circuits.
Two-way loud-speaking simplex communication with the help of integrated speaker and microphone or ex-ternal microphone with a push-to-talk key;
• Loud-speaking voice communication in “half-duplex” mode with duplex devices like telephone sets;• Group calls and Public Address, including zonal one;• Extended voice signal bandwidth up to 6,8 kHz;• Broadcasting of alarm signals and other pre-recorded messages from central exchange for single subscribersand group of subscribers;• Indication of calls, busy subscriber, unanswered call and other modes on LED indicators of programmablekeys;• Translation of incoming sound messages via integrated loudspeaker and optional 25 W amplifier;• Control of external signal device with the help of built-in relay;• Reliable communication via digital two-wire Uk0 –interface line to a distance of up to 6 km;• Integration with DCP, MDK systems produced by «Neumann Elektronik».

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Product Brochure
DCN-16U is a multifunctional digital central exchange that provides intercom, public address, and general alarm concurrently. DCN-16U can be supplied with optional DCN-Q4E module inside that is designed for connecting of up to 4 DCN-16U exchanges or other devices (PABX, voice registration devices) via E1 digital interfaces to provide simplex and duplex intercom and PA communications at industrial sites.Each DCN-Q4E module makes it possible to connect up to 60 digital subscribers. DCN-Q4E modules can be combined and increase the system capacity to several thousand of subscribers.

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Product Brochure
DIS Digital Desktop Call Station can be used as intercom and an access unit for PA systems in oil and gas, steel, chemical and petrochemical industries and industries with similar environments as well as in the transport sector. It can be installed in operation or control rooms. DIS enclosure is equipped with a slant-top cover for better button visibility. The number of buttons with LEDs can be increased from 8 to 32 in one DIS housing and up to 224 buttons by extension modules

Features:

• 8 to 224 direct keys with additional extension modules
• Ruggedized buttons
• Button labeling (transparent buttons)
• Simplex/duplex communication
• Hands-free communication
• LED indications for incoming, missed call and line status (busy)
• Volume Setting
• Noise reduction/elimination adjustable microphone
• Covers distance of up to 6 km from the central exchange
• Hot swapping

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