ASL have long been a global leader for rail public address and voice alarm (PAVA) applications. With an increasingly greater number of people using railways and underground metro systems as their main method of transport every day, the need for safety and control at stations is becoming ever more crucial. Intelligent public address routing enables the consistent stream of announcements with minimal effort, while voice alarm ensures calm and timely evacuation of passengers – keeping panic at bay.

Throughout our history we have continually delivered fully built and tested PAVA systems to the highest standard for key rail hubs around the world – from our analogue-to-IP legacy solutions, to our VIPEDIA range with our latest generation of digital, networked audio distribution products.

Why ASL?

At ASL, we have a range of products designed specifically for rail applications including our IP65-rated and vandal-resistant Station Announcement Point (SAP02 and SAP03) as well as our handheld Radio Microphone Transmitter (RPA) with wireless connection for use anywhere onsite by station staff.

Furthermore, our Dynamic Ambient Noise Sensing (DANS) technology responds rapidly to the sudden, large changes in ambient noise typical of busy rail interchange stations, as well as the intermittent reduced ambient background noise, by continually adjusting the levels of voice alarm and station announcements as they are being made. Sensors placed throughout the station control all aspects of paging and alarm exactly as required, in real time and across multiple zones. Further, our Long Line Public Address (LLPA) solution supports traditional analogue routing as well as AoIP, making an ASL PAVA system the ideal solution for rail applications spanning many stations and lines.

In addition to PAVA, ASL’s award-winning iVENCS Control System offers LLPA management across multiple stations; allowing decentralised control from various operation control centres alongside integration with Passenger Information Display Systems (PIDS), controlled simultaneously with the public address. As a station management system, additional modules can be added to iVENCS Core to manage various other subsystems onsite, including CCTV, fire detection, Help Points and more, so that station staff can simultaneously monitor and be in full control of all subsystems throughout the station environment.

With successful installations at over two-thousand stations to date, and our products given special approval by national rail operators internationally, ASL equipment can be fully relied upon to keep passengers safe, informed and protected at all times.