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VAS Centrals

Realization of systems according to VDE 0833-4 and EN 50849
Home » Building Services Engineering » Voice Alarm Systems » VAS Centrals

Our central components enable the realization of systems according to VDE 0833‑4 and EN 50849 up to safety level III and beyond.

Our Ethernet-based system interface WeNet connects all components with each other. By integrating network switches in the devices no further network components are required.

Redundant monitored connections enable the distribution of the system via evacuation areas or building complexes.

We also deliver all necessary additional components, such as emergency power managers, batteries, Ethernet extender, EOL (End Of Line) modules, pre-assembled cables, rails, assembly material and cabinets.

 

  • Lower system costs
  • Faster planning and installation
  • Maximum safety
  • Rapid maintenance
  • Low operating costs, less hassle

 

Up to 50 % cost savings for security level III systems (VDE 0833‑4)+—

Systems of safety level III according to VDE 0833‑4 must be able to sound in all alarm areas in the event of a single fault in such a way that the speech intelligibility according to the STI method does not fall below 0.45. Our solution does not require a dublicated second system to fullfill this requirement. Due to a so-called n+1 redundancy function, one (1) additional central unit is sufficient.

Up to 66 % less space required for a complete voice alarm system+—

Thanks to the low height (1 HU, 19") and the integration of all functions of a premium voice alarm system, the space requirement is up to 66 % less than that of competitor systems with comparable functionality. Due to the low power consumption and the horizontal airflow, additional central units can also be mounted directly above each other in the cabinet.

Up to 90 % cost savings in system leveling task+—

The leveling task for PAGA systems (i.e. the correct gain setting from the microphone to the speaker) can be very time-consuming with many sources and speaker lines. Instead of mSources˙nLines leveling operations, only mSources+nLines operations are necessary because all levels are set against an internal reference. Only one (instead of two) service technician is required.

Up to 50 % faster installation and configuration+—

CESAA voice alarm systems consist of only a few different components, mistakes during installation are thus avoided. Even complex systems can only be implemented with central units installed one above the other. RJ45 and other standard plug connections simplify the cabling. The WEB interface always combines all devices into one view. An individual configuration is not necessary. The auto-discovery function automatically detects all devices on the network. Mistakes in the assignment of IP addresses are impossible. Settings of DIP or address switches are not necessary.

Up to 80 % faster system planning+—

Simple systems can be implemented with a single central unit. Planning flexibility is provided by up to 4 parallel channels even in the minimum expansion stage. Each additional central unit scales not only the number of channels, but also the number of available additional connections (e.g. analog inputs). Mistakes in the planning phase can often be corrected by purchasing a license without additional assembly or installation work.

Simple, cost-effective cabling of system components, such as call stations, to up to 15 km+—

Wenzel Elektronik offers a portfolio of media converters and range extenders for different use cases. The guaranteed range of the LAN interface of 100 m can thus be extended to up to 15 km. Even greater distances can be achieved with single mode fiber optic media converters. Media converters convert from copper to fibre optics and allow the operation of network components without interference even if the connecting line has to be laid through an electromagnetically problematic section, e.g. along a high-voltage cable route on an industrial site. Some range extenders pass on their own PoE (Power over Ethernet) supply, e.g. from a PoE switch, to our PoE-enabled call stations via the long distance connection and the remotely powered counterpart. This eases the wiring considerably by simply connecting the components together.

Maximum safety and reliability is ensured by automatic monitoring mechanisms+—

Loudspeaker lines are - imperceptible to humans - cyclically checked for interruption, short circuit, ground fault and deviations in the loudspeaker power rating. The verification of live announcements is done by a output power measurement. Cyclical end-to-end tests check the minimum necessary quality of network connections between call stations and the PAGA control center.v

Standard error management through SNMP support+—

Errors and various status information are sent via SNMP traps or are available via standard SNMP MIB queries.

Integrated backup amplifiers+—

Each of the 4 integrated amplifiers can take over the task of a failed amplifier.

Up to 90 % time saving for modifications or upgrades+—

You only pay for features you need. This means that many functions are already on board and can be activated on request without additional assembly or installation work. Configuration changes can be made remotely either via the optional LTE module or by connecting the system directly to the Internet.

Device replacement in only 5 min. while the rest of the system remains in operation, e.g.:+—

1. Disconnect the faulty device or device to be replaced from the power supply and pull also all other plug connections from. / 2. Loosen 4 screws for cabinet mounting on the front panel. / 3. Replace the device. / 4. Retighten 4 screws for cabinet mounting on the front panel. / 5. Plug in all connectors again, finally also the power supply. / 6. Enter the UUID printed on the exchange device via the WEB configuration interface, or in the case of a master, insert the master module from the removed device into the exchange device. / 7. Activate the change via the WEB configuration interface → Ready. All settings of the exchanged device are taken over. No new leveling of the system is necessary.

Fast troubleshooting through remote diagnostics+—

An optional VPN LTE router allows remote dial-in to the system by maintenance personnel. Your advantages: 1. Short response times. / 2. Relief of the staff. / 3. Cost and time savings. / 4. High availability of the system. / 5. No infrastructure required at the customer's site. / 6. Independent, secure access. / 7. Competent support by Wenzel experts. /

Low power consumption in standby mode, less waste heat+—

Central units only have a power consumption of 25 W in standby mode. Operating costs are also saved in cooling, since the waste heat must also be dissipated again. The lower power consumption allows the use of small batteries to keep voice alarms powered for at least 30 minutes even if the main power supply fails.

Never too loud and never too quiet+—

The volume of the announcements can be adjusted to the time of day using the predefined volume control. In addition, it is possible to lower or raise the volume before the announcement via the dynamic, environment-noise-dependent adjustment.

CESAA Central Unit CE-VAS4
Central UnitVAS CentralsVoice Alarm Systems

CESAA Central Unit CE-VAS4

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CESAA Add-On Controller CE-HOST
Add-On ControllerVAS CentralsVoice Alarm Systems

CESAA Add-On Controller CE-HOST

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CESAA Auxiliary Amplifier CE-AMP224
Auxiliary AmplifierVAS CentralsVoice Alarm Systems

CESAA Auxiliary Amplifier CE-AMP224

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We are pleased about your interest. How may we assist you?

International Sales

Carmen Wäsche-Rohlfing

+49 4101 69699-25

c.waesche-rohlfing@wenzel-elektronik.de
Wilfried Schröder

Germany North, East & South East

Wilfried Schröder

+49 4101 69699-67

w.schroeder@wenzel-elektronik.de
Fred Schlatermund

Germany West & South West

Fred Schlatermund

+49 4101 69699-62

f.schlatermund@wenzel-elektronik.de
Carsten Schölzig

Spare Parts & Repair

Carsten Schölzig

+49 4101 69699-17

c.schoelzig@wenzel-elektronik.de
WENZEL Elektronik GmbH
GehrstĂĽcken 7
25421 Pinneberg
Germany

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