Digital audio matrix board

The Cerberus PACE Compact audio matrices PC1001-A3 and PC1002-A3 process audio signals from the digital network, the internal digital memory (flash), the micro SD card, and the analog audio inputs. The digital audio matrices automatically digitize analog audio signals, so they can be processed further. Each audio signal is assigned to an audio channel. A digital audio matrix can manage up to 255 audio channels.

Cerberus PACE Compact audio matrices are standard network participants. Digital audio matrices are connected to the network using Ethernet switches.

The parameters for audio transmission within the network are configured using the 'PACE-Design' system software. The audio matrices have sampling frequencies of up to 48 kHz / 24 bit to ensure compliance with the most stringent audio quality requirements. The digital audio matrices transmit up to 64 audio channels simultaneously within the network. The constant latency of 4.6 ms presents in audio signals from the analog input, e.g., a microphone, up to the point of being converted back to analog and output at the speaker lines. This very slight delay allows for Cerberus PACE Compact systems to be used in 'pro sound' applications.

The network transmits all the control signals simultaneously as the audio signals.

The Cerberus PACE Compact audio matrices PC1001-A3 and PC1002-A3 monitor the correct function of the installed amplifiers. In case of a fault, they can switch to the installed backup amplifiers.

The Cerberus PACE Compact audio matrices monitor the connected speaker lines for open lines, short circuits and ground faults. The monitoring can be conducted via speaker line impedance supervision or via EOL elements PCA2004-A1. Speaker loops with short circuit isolators PCA2005-A1 can be connected to the Cerberus PACE Compact audio matrices.

Ethernet switches

Ethernet switches are used to connect individual Cerberus PACE Compact network components, such as Cerberus PACE Compact system and call stations. The Ethernet switches can be connected to a 'PACE-Net' network of up to 1350 network participants.

The Cerberus PACE Compact network components feature two independent network connections. These Ethernet connections combined with Ethernet switches can be used to build a fully redundant network.

All Cerberus PACE Compact Ethernet switches feature standard Ethernet sockets (RJ45) for the connection of Cerberus PACE Compact network components. Adapters can be fitted to create further interfaces for maximum flexibility in network cable selection. Users can choose between 100 Mbit/s Ethernet and various fiber-optic adapters in any frequency range, from multi-mode to single-mode.

Media converter

The media converter converts a CAT5 copper-based Ethernet section to fiber-optic based Ethernet section.

Call stations

Cerberus PACE Compact offers a range of operating and call stations for various applications.

The system operating unit PT1002-A1 displays the operating and fault status of the audio system.

Live announcements with the integrated hand-held microphone or stored alarm and evacuation announcements can be played throughout the entire building or in single areas (zones).

It provides color-coded buttons to trigger, reset, and silence alarms. The color-coded LED on the respective button indicates the status of the 'alarm' function or the 'silencing' function.

The PT1002-A1 can be integrated into the Cerberus PACE Compact cabinet door and provides a lockable viewing door.

It communicates via the 'PACE-Bus' and 0 dB symmetrical analog audio transmission with the Cerberus PACE Compact system.

The PT1002-A1 is designed for the following applications:

  • Control and monitor the Cerberus PACE Compact system by users
  • Displaying information on operation, faults, and alarms provided via color-coded indicating elements
  • Selecting speaker circuits
  • Selecting an audio source
  • Transmitting live announcements via an integrated hand-held microphone
  • Issuing an acoustic warning via an integrated buzzer if there are error messages in the system
  • For more applications, see Call stations

The alarm and standard call station PT2001-A1 is a network based 'PACE-Bus' desk call station with 19 buttons and is designed for the following applications:

  • Control and monitor the Cerberus PACE Compact system by users
  • Selecting speaker circuits
  • Selecting an audio source
  • Playback of announcements recorded in advance
  • Transmitting live announcements via mounted gooseneck microphone
  • Allows a redundant system structure
  • For other applications, see Call stations.

Up to four additional button modules PTO2001-A1 can be fitted to extend the network-based desk call station PT2001-A1 to a maximum of 115 buttons.

The call station buttons of PT2001-A1 and PTO2001-A1 are basically freely operable.

An optional key switch module PTO2002-A1 or PTO2003-A1 enables all or individual call station buttons to be released or locked individually.

The longer PTO2004-A1 can be used here as an alternative to the standard gooseneck microphone.

The desk call station PT2008-A1 is designed for small standard applications.

The call station buttons of PT2008-A1 are freely operable.

The desk call station PT2008-A1 may only be used for standard applications rather than alarm applications.

The desk call station PT2009-A1 is designed for small to medium-sized standard applications. It communicates via the 'PACE-Bus' and a 0 dB symmetrical analog audio transmission.

Up to three additional button modules PTO2006-A1 can be fitted to extend the desk call station PT2009-A1 to a maximum of 32 buttons.

The call station buttons of PT2009-A1 and PTO2006-A1 are freely operable.

The PT2002-A1 is a network-based 'PACE-Net' fire brigade call station and allows a redundant system structure. The fire brigade call station PT2003-A1 communicates via 'PACE-Bus' and 0 dB symmetrical analog audio transmission.

They are designed for use by the fire brigade or trained security personnel. The alarm and system status can be monitored.

  • The integrated hand-held microphone can be used to make live announcements.
  • The pre-configured alarm announcement buttons can be used to play stored alarm and evacuation announcements.

Live announcements or stored alarm and evacuation announcements can be played throughout the entire building or in single areas (zones). The system interrupts all other audio outputs throughout the building or in the single areas as soon as:

  • an alarm announcement button is pressed or
  • hand-held microphone is taken from the hook or
  • the push-to-talk button on the hand-held microphone is pressed.

Operating terminals

The system operating unit PT1001-A1 displays the operating and fault status of the audio system. It provides color-coded buttons to trigger, reset, and silence alarms. The color-coded LED on the respective button indicates the status of the 'alarm' function or the 'silencing' function.

The PT1001-A1 can be integrated into the Cerberus PACE Compact cabinet door and provides a lockable viewing door. It communicates via the 'PACE-Bus' with the Cerberus PACE Compact system.

The PT1001-A1 is designed for the following applications and functions:

  • Control and monitor the Cerberus PACE Compact system by users
  • Displaying information on operation, faults, and alarms provided via color-coded indicating elements
  • Issuing an acoustic warning via an integrated buzzer if there are error messages in the system
  • Manual activation, silencing, or resetting of an alarm
  • Acknowledging fault messages
  • For other applications, see Operating terminals.

Power amplifiers

Power amplifiers PV100x amplify analog low-level audio signals to 100 V speaker line voltage. The power amplifiers use the latest digital technology for maximum effectiveness.

The power amplifiers PV1001-A1 are powered with DC 24 V.

The power amplifiers PV1002-A1 feature an integrated mains voltage supply and can be operated temporarily with DC 24 V in the event of emergency power operation. If a power amplifier detects a fault in the mains voltage supply, it will automatically switch to the 24 V emergency batteries.

In emergency power operation, the amplifiers boast lower power consumption in standby mode.

Each power amplifier is equipped with a maintenance-free fanless cooling system. The power amplifiers are also fitted with circuit breakers to provide protection against idling, short-circuit, overheating and power surges.

Power supply and batteries

The external AC 230 V power supply unit PP2004-A1 provides DC 24 V to all the system externally mounted call stations.

The power supply unit ensures that the externally mounted components continue to operate without interruption in case of an 'AC 230 V' line voltage failure by providing a DC 24 V from the emergency batteries.

The power supply unit also charges, monitors, and protects the emergency batteries. The batteries are charged in accordance with the standard EN 54‑4 based on their nominal capacity.

The power supply unit is equipped with a converter, an over-voltage protection switch, and the battery deep discharge protection. The deep discharge protection ensures that the batteries never fully discharge, thus preventing battery damage.

The power supply unit is suitable for a supply system with a nominal voltage of 230 V / 50 Hz.

Fault messages are displayed visually on the front of the unit.

Wall cabinets

The robust wall cabinet provides a space-saving and secure solution for accommodating Cerberus PACE Compact system components, such as the digital audio matrix board, power amplifiers, Ethernet switches, and the power supply.

It is pre-assembled in accordance with the requirements for Cerberus PACE Compact system components to provide maximum protection, even given tough ambient conditions.

The Cerberus PACE Compact cabinets provide an active ventilation system, to guarantee that system components can perform their maximum functions at the specified operating temperatures. This ensures that system components work reliably even at the limits of the specified workload and the outside temperature.