Multi-CCU system
A multi-CCU system is necessary if there is no capacity to connect all required DCN units or if
you want to couple multiple rooms. All CCUs need to be connected with an optical cable to
each other and with an ethernet cable (Cat5e or better) to the switch (100 Mbit/s or better).
The following can be connected to a multi-CCU system:
– A maximum of 30 DCN-CCU2 devices (refer to Control capacity, page 78).
– A maximum of 4000 delegate positions.
– A maximum of 1 DCN-WAP.
Notice!
In a Multi-CCU system, it is not required to close the optical ring as shown in figure 4.16,
however closing it makes it redundant as explained in the chapter regarding ‘Redundant
optical network’.
Notice!
In case the Multi-CCU system contains only 2 CCUs and no PC-control is required the network
switch can be omitted. The network cable can go from the CCU that is assigned as master
directly to the CCU assigned as slave. A cross cable is not required, the CCUs are Auto-MDIX.
The CCUs should have different static IP addresses in the same subnet.
Figure 4.17: Basic multi-CCU system
Conference System Planning | en 85
Bosch Security Systems B.V. Operation Manual 2013.11 | V2.0 | DCN-NG_OM_V4.x
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