The Bosch PAVIRO PVA-4CR12 is the EN 54-16 certified controller for PAVIRO public address and voice evacuation systems. It routes 4 audio channels to 12 built-in zones (expandable to 492 with routers), supports 16 call stations and 100 priorities, and includes a message manager for evacuation and commercial messages. Full line supervision, fire alarm inputs and IRIS-Net configuration. 24V DC, 2RU.

Bosch PVA-4R24 Router, 24-zone expansion unit for PAVIRO system, One router can handle up to 4000W speaker load., max 500W per zone, 20 GPI, 24 GPO and 2 control relays, Up to 20 routers per controller, EN 54-16 system certification.

The Bosch PVA-1WEOL is an end-of-line supervision module designed for the PAVIRO public address and voice evacuation system. Working with the PAVIRO EOL master, it monitors loudspeaker lines for open and short circuits. The module is powered through the loudspeaker line's pilot tone and supports multiple modules on a single loudspeaker line.