Bosch DCN multimedia, Hardware Installation Manual

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System installation design and planning
Before you start to install system devices and connect system cabling, you should make a
system design and planning:
–
Familiarize yourself with the product and system capabilities.
– Make a cable (connection) plan:
–
Calculate the system network cable length.
– Calculate the system power consumption.
– Calculate the required power capacity of the system.
Notice!
DCN multimedia uses the RSTP protocol. If the DCN multimedia system needs to be
connected with the locally present network, please consult the local IT department before
continuing with the installation design.
Notice!
Make sure that the cable lengths and power consumptions do not exceed the specifications:
Not doing so will result in malfunctioning at any moment of the DCN multimedia products and
system.
System capabilities
DCN multimedia product and system capabilities depend on:
–
The lengths of the system network cables.
– The number of connected devices.
– The system power supply capacity.
Cable length
System network cables (DCNM‑CBxx) lengths (2, 5, 10 or 25 m) have a direct effect on the
available power supply capacity. The longer the system network cable, the less power supply
capacity is available to drive the connected devices. Therefore, choose the lengths of the
system network cables carefully.
Notice!
Custom network cables, must never exceed the maximum Gb Ethernet specification of 100m
(IEEE 802.3ab). The maximum DCN multimedia system network cable length to be used is
50m.
Keep your network hierarchy as flat as possible. This means having as less levels as possible.
It is recommended not to have more than 7 levels. See the following example: 1 = Root
switch. 2 = Switch.
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8 en | System installation design and planning DCN multimedia
2013-08 | V1.0 | Hardware Installation Manual Bosch Security Systems B.V.