Bosch PRAESENSA PRA-CSBK Call station kit, basic

• Basic open frame call station for custom call panel solutions without LCD
• Supervised hand‑held microphone with helix cable and loudspeaker included
• CAN‑interface for selection switches and status indicators
• Connections for power LED and status LEDs
• Dual OMNEO IP‑network connection and redundant Power over Ethernet

The basic call station kit is an open frame call station to create dedicated full custom operator panels for PRAESENSA Public Address and Voice Alarm systems. It has the same functionality as the PRA-CSLW, but without LCD user interface to facilitate easier mounting in operator desks or in wall‑mounted fireman’s panel enclosures.
It comes with a hand‑held supervised omni‑directional microphone for close talking with press‑to‑talk button
and a small monitor loudspeaker. The kit has a CAN‑bus interface on RJ12 to a PRACSEK Call station extension kit for connection of selection switches and status indicator LEDs, or to connect to a full custom control board with switches and indicators. The interface is compatible with the PRA-CSE and one to four of these devices can be
connected. The kit only requires a connection to an OMNEO IP‑network with Power over Ethernet (PoE) for
communication and power supply combined. It can be configured as business and emergency call station. The PRA-CSBK is considered a component that must be installed in a final product. The final product must be reconfirmed to meet applicable EMC directives.

Functions
IP‑network connection

• Direct connection to the IP‑network. One shielded CAT5e cable is sufficient for Power over Ethernet, audio and control.
• For dual redundancy of network and power connection, a second shielded CAT5e cable can be connected.
• Integrated network switch with two OMNEO ports allows for loop-through connections to adjacent devices (at least one must provide PoE). Rapid Spanning Tree Protocol (RSTP) is supported to enable recovery from failing network links.

Business operation

• Press‑to‑talk switch on hand‑held microphone. Without call station extension panels connected, the press‑to‑talk switch can be used to make calls to a pre‑configured set of zones.
• Fixed level monitor loudspeaker.
• Local audio line input (with stereo to mono conversion) for connecting an external audio source. The audio channel will be available on the network and can be played in any loudspeaker zone.
• CAN‑bus interface with power supply on RJ12 connector for connection to a full custom user interface board with selection switches and status indicator LEDs. This connection can also be used for up to four cascaded PRA-CSE Call station extension panels or a PRA-CSEK Call station extension kit (availability to be announced).

Emergency operation

• The basic call station kit fully complies to the standards for voice alarm applications when configured correctly in combination with one or more call station extensions or a custom user interface panel. The PRA-CSBK is considered a component that must be installed in a final product. The final product must be reconfirmed to meet applicable voice alarm standards, or must be certified.
• Each of the two RJ45 network connectors accept PoE to power the call station. This provides fail‑safe network connection redundancy, as one connection is sufficient for full operation.
• Supervision of all critical elements; the audio path is supervised, as well as the communication to the network.