18
en | Planning
Radio gateway
2019.10 | 2.0 | F.01U.373.488
Operation Manual
Bosch Sicherheitssysteme GmbH
The maximum number of devices permitted depends on your fire
control panel, national guidelines and regulations.
Range
Range criteria:
–
In buildings with small rooms and several walls, such
as hotels and offices, a radio cell
may be distributed over a maximum distance of 120
m.
20 m
20 m
20 m
20 m
20 m
20 m
Figure
4.1: Radio gateways and radio devices in a multi-story building with intermediate walls
A radio link may not exceed 20
m in length. The connection to other radio devices in the same
radio cell should not penetrate more than one wall.
–
A radio cell may be operated over a maximum of 5
stories, with the radio gateway
positioned at the middle story.
Maximum permissible distribution for cross-story planning:
Floor +2
Floor +1
Floor 0
Floor -1
Floor -2
40 m
80 m
120 m
80 m
40 m
Figure
4.2: Radio gateways and radio devices over five stories with intermediate walls
–
In buildings without obstructions, such
as large halls, a radio cell may be distributed over
a maximum distance of 180
m.
30 m
30 m
30 m
30 m
30 m
30 m
Figure
4.3: Radio gateways and radio devices in a multi-story building without intermediate walls
Network density
Each radio device can have multiple connections to its surrounding neighbors. The distance to
the surrounding neighbors must be at least 1.5
m.
