01 / 06
Browser-Based Operator Access
Enables appropriately licensed PCs and tablets to access advanced public address controls through a web browser, without requiring a dedicated operator console.
Flexible Operator Experience
Arriving
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-APAS Advanced Public Address Server
Industrial PC serving PRA-APAL operator devices: zone pictures, music from memory or internet, scheduled and recorded calls, text-to-speech.
- 2 Networks Secure + Corporate
- Web Browser Operator UI
- Text-to-Speech Multi-lingual
IP-connected and fully-featured
PRAESENSA Public Address and Voice Alarm System
PRAESENSA system components
PRA-APAS Advanced Public Address Server
Industrial PC serving PRA-APAL operator devices: zone pictures, music from memory or internet, scheduled and recorded calls, text-to-speech.
- 2 Networks Secure + Corporate
- Web Browser Operator UI
- Text-to-Speech Multi-lingual
PRA-APAS · PRODUCT VIEWS
Explore the PRA-APAS Inside & Out
Explore the Bosch PRA-APAS advanced public address server through its labeled hardware interfaces, including status indicators, USB, Ethernet, serial connectivity, HDMI display outputs and 12 V DC power input.
FRONT PANEL · 01 / 02
PRA-APAS · PRODUCT VIEWS
Explore the PRA-APAS Inside & Out
Explore the Bosch PRA-APAS advanced public address server through its labeled hardware interfaces, including status indicators, USB, Ethernet, serial connectivity, HDMI display outputs and 12 V DC power input.
FRONT PANEL · 01 / 02
PRA-APAS · TECHNOLOGY IN ACTION
Advanced Public Address Made Accessible
See how PRA-APAS provides the network-connected server platform for advanced business announcements, operator access, message libraries and music workflows. Advanced operator features require separately licensed PRA-APAL software.
01 / 05 · Server platform & PRAESENSA integration
A dedicated platform for advanced PA
The PRA-APAS provides the server platform for advanced public address applications connected to Bosch PRAESENSA.
- The server provides an interface between compatible operator devices and the PRAESENSA IP network.
- It works with existing local area networks through designated Ethernet connections.
- Emergency functions remain managed by the PRAESENSA system; the APAS is an advanced business-PA platform.
02 / 05 · Operator access from PCs & tablets
Connected staff, flexible operation
Appropriately licensed third-party PCs and tablets can access supported advanced public address functions through the PRA-APAS platform.
- PRA-APAL provides the operator-side software functionality for supported devices.
- Different user group profiles and access levels are supported by the licensed application.
- A separate PRA-APAL license is required for each connected active operator device.
03 / 05 · Message library & scheduled announcements
Plan routine communications
The PRA-APAS offers internal storage for business messages and supports advanced announcement workflows through the licensed PRA-APAL application.
- Maintain a library of business announcement messages on the server.
- Schedule suitable routine messages and events with the PRA-APAL functions.
- Advanced scheduling is not an included standalone hardware function; licensing and configuration are required.
04 / 05 · Music playlists & connected sources
Manage background music sources
The server supports stored music playlists and connectivity for advanced music applications in supported PRAESENSA installations.
- Store music playlists in the server’s internal memory.
- With appropriate software, operators can manage music playback and internet radio sources.
- External streaming sources depend on network access, service availability and configuration.
05 / 05 · Text-to-speech & advanced workflows
Turn prepared text into announcements
With properly configured PRA-APAL functions and a supported text-to-speech service, the PRA-APAS platform helps support prepared spoken announcements.
- Text-to-speech uses an appropriate external service and suitable network access.
- Licensed operators can use enhanced message and announcement tools.
- Feature availability depends on software version, licensing, service and system configuration.
PRA-APAS · TECHNOLOGY IN ACTION
Advanced Public Address Made Accessible
See how PRA-APAS provides the network-connected server platform for advanced business announcements, operator access, message libraries and music workflows. Advanced operator features require separately licensed PRA-APAL software.
01 / 05 · Server platform & PRAESENSA integration
A dedicated platform for advanced PA
The PRA-APAS provides the server platform for advanced public address applications connected to Bosch PRAESENSA.
- The server provides an interface between compatible operator devices and the PRAESENSA IP network.
- It works with existing local area networks through designated Ethernet connections.
- Emergency functions remain managed by the PRAESENSA system; the APAS is an advanced business-PA platform.
02 / 05 · Operator access from PCs & tablets
Connected staff, flexible operation
Appropriately licensed third-party PCs and tablets can access supported advanced public address functions through the PRA-APAS platform.
- PRA-APAL provides the operator-side software functionality for supported devices.
- Different user group profiles and access levels are supported by the licensed application.
- A separate PRA-APAL license is required for each connected active operator device.
03 / 05 · Message library & scheduled announcements
Plan routine communications
The PRA-APAS offers internal storage for business messages and supports advanced announcement workflows through the licensed PRA-APAL application.
- Maintain a library of business announcement messages on the server.
- Schedule suitable routine messages and events with the PRA-APAL functions.
- Advanced scheduling is not an included standalone hardware function; licensing and configuration are required.
04 / 05 · Music playlists & connected sources
Manage background music sources
The server supports stored music playlists and connectivity for advanced music applications in supported PRAESENSA installations.
- Store music playlists in the server’s internal memory.
- With appropriate software, operators can manage music playback and internet radio sources.
- External streaming sources depend on network access, service availability and configuration.
05 / 05 · Text-to-speech & advanced workflows
Turn prepared text into announcements
With properly configured PRA-APAL functions and a supported text-to-speech service, the PRA-APAS platform helps support prepared spoken announcements.
- Text-to-speech uses an appropriate external service and suitable network access.
- Licensed operators can use enhanced message and announcement tools.
- Feature availability depends on software version, licensing, service and system configuration.
PRAESENSA · APPLICATION AREAS
Advanced public address for real-world environments
Explore how the Bosch PRA-APAS can support business announcements, message libraries and music management in PRAESENSA installations when deployed with appropriately licensed PRA-APAL operator devices.
Campus messaging areas
Lecture hallsAcademic buildingsShared spacesCampus areas
Hospitality public address
LobbiesRestaurantsConference areasGuest corridors
Retail messaging areas
Retail areasFood courtsAtriumsPublic areas
Operational messaging areas
Passenger areasIndustrial buildingsOperational areasStaff information
01 / 04 · APPLICATION
Universities & Campuses
University and campus PRAESENSA systems may need routine announcements, timetable-based messages and consistent operator access across multiple buildings.
Relevant applications
- Scheduled class-change and campus messages
- Stored non-emergency announcements
- Operator access from authorized PCs or tablets
PRA-APAS contributionThe PRA-APAS hosts the advanced public address platform and message storage for campus-wide business communications. Scheduling and operator functions require appropriate PRA-APAL licensing and configuration.
02 / 04 · APPLICATION
Hotels & Hospitality
Hotels can use PRAESENSA public address systems for guest-facing messages and managed background music in selected shared areas.
Relevant applications
- Guest information and service announcements
- Managed music playlists in public areas
- Authorized front-desk or facility operator access
PRA-APAS contributionThe PRA-APAS provides the server and library for business messages and music playlists. Compatible, separately licensed PRA-APAL operator devices enable advanced control.
03 / 04 · APPLICATION
Shopping Malls & Retail
Shopping centers can coordinate routine promotional announcements, tenant information and background music across configured PRAESENSA zones.
Relevant applications
- Store promotions and opening-hour messages
- Scheduled retail announcements
- Music playlists for selected zones
PRA-APAS contributionThe PRA-APAS supports centrally stored business messages and playlists for licensed advanced public address workflows, integrated with the PRAESENSA system.
04 / 04 · APPLICATION
Transportation & Industrial
Transport hubs and larger industrial sites may use PRAESENSA for regular operational announcements in addition to their separate emergency voice alarm functions.
Relevant applications
- Routine passenger or staff information
- Prepared, repeatable operational messages
- Authorized operator access over IP networks
PRA-APAS contributionThe PRA-APAS enables advanced non-emergency announcement workflows and network-connected operator devices. Emergency voice alarm functions remain under PRAESENSA system control.
Application examples are illustrative. Advanced operator features require the appropriate PRA-APAL license for each active operator device. PRA-APAS is not the emergency voice alarm controller.
PRAESENSA · APPLICATION AREAS
Advanced public address for real-world environments
Explore how the Bosch PRA-APAS can support business announcements, message libraries and music management in PRAESENSA installations when deployed with appropriately licensed PRA-APAL operator devices.
Campus messaging areas
Lecture hallsAcademic buildingsShared spacesCampus areas
Hospitality public address
LobbiesRestaurantsConference areasGuest corridors
Retail messaging areas
Retail areasFood courtsAtriumsPublic areas
Operational messaging areas
Passenger areasIndustrial buildingsOperational areasStaff information
01 / 04 · APPLICATION
Universities & Campuses
University and campus PRAESENSA systems may need routine announcements, timetable-based messages and consistent operator access across multiple buildings.
Relevant applications
- Scheduled class-change and campus messages
- Stored non-emergency announcements
- Operator access from authorized PCs or tablets
PRA-APAS contributionThe PRA-APAS hosts the advanced public address platform and message storage for campus-wide business communications. Scheduling and operator functions require appropriate PRA-APAL licensing and configuration.
02 / 04 · APPLICATION
Hotels & Hospitality
Hotels can use PRAESENSA public address systems for guest-facing messages and managed background music in selected shared areas.
Relevant applications
- Guest information and service announcements
- Managed music playlists in public areas
- Authorized front-desk or facility operator access
PRA-APAS contributionThe PRA-APAS provides the server and library for business messages and music playlists. Compatible, separately licensed PRA-APAL operator devices enable advanced control.
03 / 04 · APPLICATION
Shopping Malls & Retail
Shopping centers can coordinate routine promotional announcements, tenant information and background music across configured PRAESENSA zones.
Relevant applications
- Store promotions and opening-hour messages
- Scheduled retail announcements
- Music playlists for selected zones
PRA-APAS contributionThe PRA-APAS supports centrally stored business messages and playlists for licensed advanced public address workflows, integrated with the PRAESENSA system.
04 / 04 · APPLICATION
Transportation & Industrial
Transport hubs and larger industrial sites may use PRAESENSA for regular operational announcements in addition to their separate emergency voice alarm functions.
Relevant applications
- Routine passenger or staff information
- Prepared, repeatable operational messages
- Authorized operator access over IP networks
PRA-APAS contributionThe PRA-APAS enables advanced non-emergency announcement workflows and network-connected operator devices. Emergency voice alarm functions remain under PRAESENSA system control.
Application examples are illustrative. Advanced operator features require the appropriate PRA-APAL license for each active operator device. PRA-APAS is not the emergency voice alarm controller.
Key specs
- Advanced public address server for Bosch PRAESENSA systems
- Intel Atom E3940 quad-core processor, 1.6 GHz
- 4 GB DDR3L RAM and 256 GB SSD storage
- Linux-based server platform
- Dual Gigabit Ethernet interfaces
- Supports network-connected PCs and tablets
- Internal storage for business messages and music playlists
- Supports advanced PA functions with appropriate PRA-APAL licensing
- 12 VDC operation with external power adapter
- Fanless, compact aluminum enclosure
Bosch PRA-APAS – Technical Specifications
Explore the technical specifications of the Bosch PRA-APAS Advanced Public Address Server, including its processing hardware, network interfaces, memory, storage, power requirements and environmental operating limits for PRAESENSA installations.
Specification | Value |
|---|---|
SERVER HARDWARE | |
Hardware Model | ARK-1124H-S6A3 (OEM Advantech) |
Processor | Intel Atom E3940 Quad Core SoC |
Processor Speed | 1.6 GHz |
L2 Cache | 2 MB |
BIOS | AMI EFI 64 bit |
RAM | 4 GB (DDR3L 1866 MHz) |
Internal Storage | 256 GB SSD |
Operating System | Linux |
Graphics Chipset | Intel HD Graphics 500 |
NETWORK & CONNECTIVITY | |
Ethernet Chipset | Intel i210 GbE |
Ethernet Interfaces | 2 network ports |
Ethernet Standards | 100BASE-TX; 1000BASE-T |
Video Interface | HDMI 1.4b, dual display |
USB Ports | 4 × USB 3.0 |
Serial Interfaces | RS485; RS232; RS422 |
Audio Chipset | Realtek ALC888S |
Analog Audio Connections | 2 × analog mini-jack (inactive) |
POWER & ELECTRICAL | |
Server Operating Voltage | 12 VDC |
Typical Power Consumption | 6 W |
Maximum Power Consumption | 16 W |
Power Connector | Lockable DC jack |
Power Adapter Model | ADP-60KD B (Delta) |
Adapter Input Voltage | 100–240 VAC |
Adapter Input Voltage Tolerance | 90–264 VAC |
Adapter Input Frequency | 47–63 Hz |
Adapter AC Input Connector | C14 |
Adapter Output Voltage | 12 VDC |
Adapter Maximum Output Current | 5 A |
Adapter Efficiency Level | DOE Level VI |
Adapter Protection | Overvoltage; mains overcurrent; overtemperature |
SYSTEM & PROTECTION | |
Cooling | Fanless convection |
Hardware Protection | Watchdog |
Internal Backup Battery | CR2032 lithium cell |
MECHANICAL | |
Server Dimensions (H × W × D) | 46.4 × 133 × 94.2 mm |
Server Weight | 0.70 kg |
Enclosure Material | Aluminum |
Enclosure Color | Black |
Power Adapter Dimensions (as listed in datasheet) | 110 × 62 × 31.5 mm |
ENVIRONMENTAL — SERVER | |
Operating Temperature | −20°C to +60°C, with 0.7 m/s airflow |
Storage Temperature | −40°C to +85°C |
Operating Relative Humidity | 5%–95%, non-condensing |
Vibration (Operating, No HDD) | 3 Grms, IEC 60068-2-64, random, 5–500 Hz, 1 hour/axis |
Shock (Operating, No HDD) | 30 G, IEC 60068-2-27, half sine, 11 ms |
ENVIRONMENTAL — POWER ADAPTER | |
Operating Temperature | 0°C to +40°C |
Storage Temperature | −30°C to +60°C |
Installation Altitude | −500 to 5,000 m |
Questions & answers
Know before you buy
Quick answers about the PRA-APAS, and how it compares.
What is the Bosch PRA-APAS used for in a PRAESENSA system?
The Bosch PRA-APAS is an advanced public address server designed to extend the business announcement and audio management capabilities of PRAESENSA systems. It connects compatible operator devices to the PRAESENSA IP network and provides storage for business messages and music playlists. Advanced operator functions require appropriate PRA-APAL licensing.
Can the Bosch PRA-APAS be operated from a PC or tablet?
Yes. The PRA-APAS supports network-connected third-party PCs and tablet devices for advanced public address operation. Operators can access supported functions through the PRA-APAL software interface, with a separate PRA-APAL license required for each active operator device.
What is the difference between Bosch PRA-APAS and PRA-APAL?
The PRA-APAS is the physical advanced public address server, while PRA-APAL is the software license that enables advanced operator functionality. PRA-APAL supports announcements, messages, text-to-speech, music management and scheduled events. Each active operator device requires its own license; the server and operator licenses should be treated as separate products.
Can the Bosch PRAESENSA system schedule automatic announcements and background music?
Yes. PRAESENSA can support scheduled business announcements and music management through the PRA-APAS server and appropriately licensed PRA-APAL software. This setup can help facilities manage routine messages, playlists and scheduled events without manually initiating every announcement. Available functions depend on the configured software and system.
Can Bosch PRA-APAS replace the PRAESENSA system controller for emergency announcements?
No. The PRA-APAS is an advanced public address server for business-related announcement and audio management applications; it does not replace the PRAESENSA system controller responsible for core system and emergency voice alarm functions. The server operates as an additional component within a properly designed PRAESENSA installation.
How many PRA-APAL licenses are required with a Bosch PRA-APAS server?
The number of PRA-APAL licenses depends on how many operator devices need to use the advanced public address interface. Bosch specifies one PRA-APAL license per active operator device. For example, three simultaneously active operator PCs or tablets would require three licenses. The server and license requirements should be confirmed when preparing the system quotation.
What is the Bosch PRA-APAS price in Pakistan, and where can I buy it?
For Bosch PRA-APAS pricing and availability in Pakistan, contact ESCO Pakistan for a project-specific quotation. Share your PRAESENSA system configuration, expected number of operator devices and required advanced public address functions so the server and associated PRA-APAL licensing can be quoted appropriately. Final pricing and availability are subject to confirmation.