Sakthi AV Tronics

The Voice Alarm Controller is the heart of the Plena Voice Alarm System. The voice alarm controller distributes emergency calls, business calls as well as background music (BGM) to up to 6 loudspeaker zones.The voice alarm controller is suitable for table-top and 19-inch rack-mounting installation. Two brackets for rack-mounting are supplied
Bosch Voice Alarm Controller in Chennai

The Plena Voice Alarm Router is an expansion unit thatcan add six zones and 12 input contacts to the Voice Alarm System. It can use the built-in amplifier on the LBB 1990/00 Voice Alarm Controller, and provides inputs and outputs for one or two amplifiers in a multi-amplifier one or two-channel system.
It provides dual channel operation for calls and BGMsimultaneously to a maximum of six different zones, using two Plena amplifiers. Additionally, single channel operation is possible with only one Plena amplifier.Multiple routers can also share one amplifier, including the internal amplifier on the controller unit. It is possible to use any number of amplifiers from one up to the number of routers used. The controller supports A/B wiring.

The LBB 1990/00 Voice Alarm Controller unit is theheart of the Plena Voice Alarm System. It is the basis of the Plena Voice Alarm System, and has all the essential functionality for compliance with the EN 5416 and EN 60849 standards, including full system supervision, loudspeaker line impedance supervision, a supervised emergency microphone on the front panel and a supervised message manager.The messages can be merged to allow even more flexible use of prerecorded announcements and evacuation messages. The controller can be used as a tandalone system with up to six zones, or expanded to up to 120 zones using additional sixzone routers. Up to eight call stations can be connected. Interconnections are made using standard RJ45connectors and shielded CAT-5 cable. A builtin 240 W amplifier provides the power for the emergency call channel and BGM. Additional amplifiers can be added to provide twochannel operation. All amplifiers are supervised. The audio output uses standard analog audio 100 V line switching for full compatibility with the product family of public address equipment and Bosch EVAC-compliant loudspeakers. The system is configured using DIP switches for basic functionality and a PC for more advanced functions. The controller has two BGM source inputs and a mic/line input with configurable priority, speech filter, phantom power and selectable VOX activation. A total of 16 priority levels can be specified for microphone, call stations and trigger inputs for optimum system flexibility.The powerful 240 W output section has six transformer-isolated 100 V constant-voltage outputs for driving 100 V loudspeakers in six separate zones. The 100 V-technique reduces line losses on longer distances and provides easy parallel connection of multiple loudspeakers. All zones may be individually selected from the front panel, and the BGM output level in each zone can be individually set in six steps. The controller supports A/B wiring.The configuration software is provided on from the software download section of the Plena Voice Alarm System controller. The software package also includes many useful programs, such as; MP3-ripping software, a sample-rate converter, various audio and visual tools, and free,MP3-coded music.

Highly flexible stand alone digital message player
Up to 12 messages and 12 trigger inputs
Downloads messages from a PC in WAV format
Compliant with standards for emergency sound systems
Zone control for Plena system preamplifier LBB 1925/10

The Plena Six-zone Call Station is a stylish, high-qualitycall station with a stable metal base design, a flexible microphone stem, and a unidirectional condenser microphone. It can make calls to selected zones (one to six and all-call) in a public address system built around the LBB 1925/10 system pre-amplifier. In addition to tabletop use, the special design enablesthe unit to be neatly flush-mounted in desktops.
This call station features selectable gain, a selectablespeech filter, and a limiter for improved intelligibility. The call station has a balanced line level output, making it possible to position it up to 100 m away from the LBB 1925/10, using extension cables.
Dipswitches on the bottom of the call station configure different pre and post-call chimes, as well as the priority level. LEDs on the call station indicate selected zones, and an additional, two-color LED gives visible feedback on the active state of the microphone and the system. Green indicates microphone on or chime active (flashing LED); amber indicates that the system is occupied by a source with a higher priority or operation error (flashing LED).
Controls and indicators• PTT-key• PTT status LED• Six zone selection keys• Six zone selection LEDs• All-call key• All-call status LED• Eight DIP switches
Interconnections• Cable with DIN connector
Stylish six-zone call station, intended forLBB 1925/10 system pre-amplifierUnidirectional condenser microphone on flexible stemSix zone selection keys, all-call key, and momentaryPTT-key for callsSelectable gain, speech filter, and limiter for improved intelligibilitySelectable priority levels and different pre and post- call chimes

The LBB 1956/00 call station is a stylish, high-quality call station with a stable metal base design, a flexible microphone stem and a unidirectional condenser microphone. It can make calls to selected zones (one to six and all-call) in a public address system built with the Plena Voice Alarm System. In addition to tabletop use, the special design allows it to be neatly flushmounted in desktops. The LBB 1957/00 Plena Voice Alarm System Keypad is an extension adding seven additional keys.

The LBB 1956/00 call station is a stylish, high-quality call station with a stable metal base design, a flexible microphone stem and a unidirectional condenser microphone. It can make calls to selected zones (one to six and all-call) in a public address system built with the Plena Voice Alarm System. In addition to tabletop use, the special design allows it to be neatly flush- mounted in desktops. The LBB 1957/00 Plena Voice Alarm System Keypad is an extension adding seven additional keys.

The LBB 1957/00 Call Station Keypad is an extension to the LBB 1956/00 Plena Voice Alarm System Call Station that adds seven additional zone-select keys. It has the same stable metal base as the call station. In addition to tabletop use, the special design allows it to be neatly flush-mounted in desktops.

• Seven zone selection keys
• LED indications for zone selection
• Up to eight keypads can be connected together