Greater safety at work: - Swissphone

SOLUTIONS
Multimaster guarantees
efficient and secure transmission
of alarms on a regional level
The Multimaster concept by Swissphone consolidates multiple alert zones into one region while retaining
the alert time of each zone. Alerts are transmitted quickly, efficiently and securely across the area thanks
to a master-slave configuration.
In the Multimaster concept, master base stations form
the centre of a zone and are surrounded by slave
base stations, which are positioned in such a way
that they transmit alert notifications in the form of
a wave. Precise control of wave distribution enables
even topologically complex areas to be reached
efficiently and ensures that no information is lost when
alert notifications are sent.
High availability
Swissphone supplies its own system components so
that the Multimaster concept can be set up in a
modular fashion. These include: the master base
stations and the paging network controller (PNC)
with redundant design and the feed lines to the
master with parallel running transmission media such
as radio links and fixed-line network connections
(the latter are supplied by network providers). The
high availability of the system is facilitated by
having the slave base stations set up so that the radio
signals overlap individual geographical areas.
Flexible triggering of alerts
Author: Alfred Schärli · Head of Business Unit Systems & Networks, Swissphone Telecom AG,
Samstagern, Switzerland
If necessary, alerts can also be triggered locally by
connecting terminals to the master base station.
This can be useful if a control centre needs to be
moved temporarily due to a specific incident, or if
the redundant connections from the computer-aided
dispatch system to the master base stations fail.
Local alerts are also possible by connecting a terminal
to a slave base station. Moreover, TETRA-POCSAG