Full redundancy in networked fire and voice alarm systems

In the networking of fire and Voice alarm systems in larger building complexes are not available only the safety of the individual trades, but also the safety of the overall system is in the foreground. For complex monitoring procedures exist therefore often very high requirements with regard to reliability.

The reason for this is the high transfer rate the information that is exchanged between the individual systems can be transferred.

Reliability in practice

Using the example of the PUMAVision headquarters in Herzogenaurach full redundancy in networked fire and voice alarm systems clearly shows the advantages of perfectly coordinated systems. Instead of a conventional, cost-intensive and complex coupling via contacts and inputs a comfortable data connection was established there between the two individual trades is planned. This offers a wide range of networking options and thus ensures the flexibility required by the operator. The fire alarm system is equipped with an essernet netwok that is resistant to wire breakage and short circuits. The individual decentralized voice alarm components of the system are networked with each other via special FO Ethernet switches. Due to the networking topology remains the data communication in case of fiber breakage fully operational. Also the data connection between the two trades is designed redundantly: The two systems are networked by two independent connections, which be permanently monitored. In case of a wire break or a short circuit on one of the two wires is the unrestricted function of communication via the second line secured. An occurring Error is immediately detected and displayed. This means that the system is ready to respond to any line fault in the system networking continues to be fully operational and thus offers the maximum possible safety.

The new headquarters PUMAVision Headquarters once again presents under proof that it is always worthwhile for planners and installers to always consider fire detection technology and voice alarms in their overall context and to use the advantages of an integrated system from a single source - not only because of the new regulations.

The article was published in the ESSER Newsletter Life & Safety issue 2/2010