Siemens Cerberus GW-21 Technical Manual page 11

Control Control
Panel Panel
1 to 4 contol panels
Siemens Building Technologies
Cerberus Division
A more complicated configuration is shown in Fig. 5 this network topology, the so called
two level network, the GW-21 is connected to a GW-20 that acts as a gateway concen-
trator.
GW-21.xx
Control Control
Panel Panel
Control
Panel
Fig. 5 The two level network
GW-20
GW-21.xx
Control Control
Panel Panel
1 to 4 contol panels
Control
Panel
Control
Panel
7
E1481b
06.2000