system info - Neumann Elektronik
Transcrição
system info - Neumann Elektronik
Communications Systems for Intercom, PA, Emergency Call and Telecommunications MDK - Multifunctional Digital Communications System SYSTEM INFO ms NEUMANN ELEKTRONIK GmbH Efficient Solutions for Information and Safety MDK – Multifunctional Digital Communications System The Multifunctional Digital Communications System is a centrally controlled voice communications system that has been designed to fulfil all audio applications. The MDK serves as the central exchange for intercom, public address (PA), emergency call and telecommunications functions. The MDK can be used for all such applications in industry and public transport, including those that require the highest reliability and safety standards. Complex Applications The modularly designed communications system is ideally suited for complex applications in the Railways/Public Transport sector, as well as in the Industrial sector. In Railways/Public Transport systems, the MDK System finds use as a dispatcher system for communications along railway lines, and as a voice communications system in 3S control centres. In Industry, it is used to implement very extensive PA/intercom applications. Emergency Call / Info Systems In addition to expecting higher safety standards in public transport systems, customers are also asking for more comprehensive information. ms Neumann provides extensive emergency call and information systems that can be implemented based entirely on MDK Systems. Safety in tunnels has become a particularly important issue in recent times. Special design emergency or digital. Its standard digital inter- call systems, where the call boxes faces (per DSS1) enable all digital also contain monitored fire extin- telecommunication terminal de- guishers, can be monitored and vices to be connected to the MDK, controlled with the MDK System. as well as digital PABX systems. Emergency Warning System All intercom call stations already installed in existing intercom systems The MDK can be modularly confi- from ms Neumann Elektronik are gured as a plant warning system fully compatible to the new analo- or emergency warning system that gue intercom call stations and can complies with the DIN EN 60849/ thus be connected to the MDK. VDE 0828, Part 1 standard. Innovative Communications Exchange Structure Excellent Speech Intelligibility Good intercom and PA speech intelligibility is guaranteed by the Further features of this system are system’s increased bandwidth of 7 its exchange capabilities for inter- kHz. com and public address (PA) contal devices can be connected to the Modular, Versatile and Innovative MDK. The system also offers plug- The modular design of the system in modules to connect all analogue ensures its exceptional versatility. telephone equipment and existing This modular design also enables multiparty lines to the MDK. In ad- the system to always be able to dition, radio system interfaces en- take advantage of new, innovative able it to integrate the most com- developments in wired communi- mon radio and wireless systems cations technology. nections. Both analogue and digi- – regardless of whether analogue The Multifunctional Digital Communications System (MDK) The basic configuration of the MDK System consists of a base unit (exchange) that can simultaneously switch various connections to intercom/PA devices and to tele- Highest Reliability phone lines. Several of these base ms units located at different sites can communications systems that have also be interconnected via digital been specially tailored to meet our interfaces (S2M). The terminal de- customer’s requirements for reli- vices of every base unit can then ability. On request, we can provi- be accessed from any other unit de configurations into which two connected to the system. Digital exchange control units have been interconnections via S0 and S2M in- integrated to implement a redun- terfaces enable telephone connec- dant processor system. tions to be made to PABX systems from every MDK base unit. Networking can be implemented either via fibre optic or copper cables (see diagram under “Network Structure” later in this document). To further ensure reliable transmission paths, the base units are interconnected in a ring network topology. Neumann Elektronik offers System Architecture Structure of the MDK System Base Unit n Modular design using plug-in modules n Two different bus systems: VME bus and MDK bus VME bus as the control bus for the base unit (Versa Module Eurocard) · Exceptionally versatile · High reliability standards · Very good EMC · Low energy consumption due to active termination · Fast access times MDK bus for data transport between the digital coupling matrix and the terminal device line connection modules within the locally installed system n Up to three bus systems: Master, Slave 1 and Slave 2 n Data transported on 16 highways with 32 channels each (PCM 32) n 3 system plug-in module levels Master, Slave 1 and Slave 2 n Smallest configuration is one Master module with up to 8 line connection modules n Up to 32 line connection modules in the entire line connection section n Up to 7 S2M interfaces can be used as needed n One digital audio storage module can be installed Network Structure MF Concentrator for multiple telephone/intercom lines MZV Microprocessor-Controlled Central Exchange System EZV Electronic Central Exchange System MDK Multifunctional Digital Communications System ZZ System interconnection interface TA-ZZ Terminal adapter for system interconnections MDK Terminal Units Technical Highlights at a Glance Emergency call system in tunnels Emergency call and information call system Process oriented communication Control of alarm events and sequence of responses Telephone announcements transmitted to loudspeaker circuits Automated announcements Telecommunications, intercom, PA and control functions united in one exchange system Up to 128 intercom/PA devices connected to one exchange without blocking each other Up to 256 telephone lines connected to one exchange without blocking each other Up to 10 MDK Exchanges can be interconnected via routing Multifunctional desktop call station Virtually unrestricted access to other telephone systems via connection to external PABX systems Management System application for supervisory control ntegrates many different interfaces: S2M, So, U, RS232, RS422, a/b, lines, etc. Long service life due to low heat technology High transmission bandwidth for intercom and PA GSM, DECT/ ISDN implementation Connection to fire alarm systems Remote diagnosis/maintenance, remote configuration using MTSD (digital) PC user interface software Terminal devices of all generations from analogue to digital can be connected Several MDKs can be networked together via the S2M interfaces Gateway for H.232 protocol Very good EMC due to low processor clock speed PC call station with touch screen The Most Important Functions Intercom and PA Technology Flashing indicator signals incoming call at call station Constantly lit indicator signals line engaged at call station Indicator flashes at four different frequencies to indicate status of various functions 256 assignable priority levels for call override A call station assigned a higher priority can override and interrupt an active intercom connection from a lower priority station. The higher priority station is then switched immediately through to the destination. An active connection can be reserved for a configurable length of time (operator station function). At the control centre, all operator stations have equal priority, and these call stations can communicate with each other. An active intercom connection at one of these stations can be reserved to remain connected for the reserved length of time so that no other call station can interrupt the conversation. Collective calls (all stations called), and predefined group calls Call stations can be added to a group call by pressing a button Call on hold functions • Active call can be put on hold by single incoming call • Active call can be put on hold by call waiting • Active call can be put on hold during group call by group call participants • Active call can be put on hold by call line (only signalling function) Call waiting Time scheduled volume lowering, e.g. for announcements (nighttime low volume setting) Time scheduled cyclic audio output from the digital audio storage module Service connections between control centre and service personnel Talk direction of intercom connections on hold can be controlled from one end Entrance (door/gate) intercom function Paging loudspeaker function Talk direction of intercom connection can be controlled from one end Different text messages can be output to the displays of digital call stations for different events and functions Functions to ensure reliable PA announcement transmission • Functional monitoring of amplifiers with automatic switchover to backup amplifier • Loudspeaker connections monitored by measurement of loudspeaker circuit impedance • Automatic gain control of amplifier as a function of ambient noise levels Emergency Call Functions Any incoming call can be defined as an “emergency call” based on the destination telephone number Emergency call signalling with a special display of the pillar designation from which the call originated (e.g. location) based on the source telephone number Fault signalling generated by cyclic functional monitoring Every emergency call is signalled, even when the operator station or audio frequency channel is engaged, because the operator stations can be set up to be reachable at all times Every emergency call can be accepted either in chronological order or any order Every emergency call can be forwarded (manually or automatically) to any other ISDN terminal devices Emergency calls coming in at the same time can be accepted and put on hold Operators can also call back to emergency call pillars Video connections can be controlled (manually or via the Management System application) Calls can be automatically forwarded to a backup operator station when an operator station fails A redundant telephone to answer emergency calls can be set up using eit her a standard ISDN telephone, or Using a Neumann MDK System Telephone connected to its own So interface Recording of call conversations to external recording devices can be activated automatically Call and connection data can be logged (with telephone number and time stamp) Telephone Functions Digital telephone service features and functions as per DSS1 Functions and technical features of analogue telephones and terminal devices as per 1 TR2 System Features Nominal operating voltage: • 48 V (+12 %, -10 %), or • 60 V.. (+12 %, -10 %) Climate class: 3K4 as per DIN IEC 721, Part 3-3 Type of modulation: PCM in time multiplexed technique as per CCITT CODEC: A-Law as per CCITT recommendation G711 Internal digital transmission format: PCM32 Digital telecommunications interfaces as per ISDN standard (So, U; S2M), ISDN protocols per: 1TR6 and DSS1 BZT general certification: Cert. No.: A122083H for 1TR6 Voice transmission bandwidth for telecommunications: standard ISDN Voice transmission bandwidth for intercom/PA: approx. 7 kHz Maximum of 256 telephones or 128 intercom/PA devices connectable to one base unit without blocking each other. The number of devices can be freely mixed between the two technologies (analogue and digital). Maximum of 10 base units can be interconnected in a ring topology. Maximum number of addressable telephones lines: 2,560; Max. number of intercom/PA devices: 1,280 Maximum intercom/PA line connection time on a fully loaded system: 200 ms Maximum of 7 S2M interfaces per base unit Digital audio storage in EPROM and/or RAM; voice signal from call station is stored directly into memory Logged events are time stamped using either: • the time from a built-in radio synchronised clock, or • the system time synchronised by an external clock (synchronisation messages from the network, or synchronisation by clock pulses (minute intervals)) Long-term and short-term logging systems can be connected to the MDK System controllable from a supervisory computer (Management System) via RS232C (serial) interface Siedle call stations can be connected Microphone/earphone headsets can be connected Analogue and digital radiotelephone systems can be connected PC call stations with touch screen can be connected for intercom, PA and telephony functions Service interface for system diagnosis integrated into every base unit can be read out by a PC via a monitor program implemented in firmware or via a program with graphical user interface running on Windows 95…XP Plug-in line connection modules can be hot swapped on a running system. No reset required because the modules are self initialising. The MDK is freely configurable using a PC program with graphical user interface Configuration data transferable using a standard PC card (memory card), or via a network interface Supports remote diagnosis and remote configuration MDK utilises two user access tables that can be time scheduled to be activated at different times. Applications Railways Public Transport Energy, Public Utility, and Waste Disposal Industries Waterways and Inland Shipping Routes Heavy Industry Chemical Industry Oil & Gas Motorways Tunnels