- Model: BOSCH PRAESENSA
BOSCH PRAESENSA COMMERCIAL CATALOGUE
The Public Address and Voice Alarm System is fully IP‑network based.
All system devices such as system controller, amplifiers and call stations communicate via IP, using an Audio over IP (AoIP) protocol that supports AES67 for audio and using AES70 for control, with encryption and authentication to prevent unauthorized access, misuse and modification of data.
The audio part support Layer 3 connections via routers between subnets with latency of less than 10 ms and synchronized outputs.
The control data part shall be guaranteed by Transmission Control Protocol (TCP) Layer 4.
The system support >100 simultaneous channels for music routing and making calls, using an uncompressed, high-resolution digital audio format with 24‑bit sample size and 48 kHz sample rate. A system based on a single system controller shall support at least 200 system devices and 500 zones.
