Maintenance Guide

Cobham Wireless
idDAS Installation and Maintenance Guide 00109GU Rev. 2.0
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2.2 Cascaded idRU Topology
This topology supports up 36 idRUs connected to the MSDH in cascades or ‘strings’ of up to six remotes per
string. The first remote in the string is connected directly to the MSDH, and the remaining remotes in the
same string are interconnected. All connections are CPRI based.
This provides more coverage per fibre optic link between the MSDH at the headend and remotes. The
following figure illustrates the connections for a single cascade.
Figure 2-2. Example of a Cascaded idRU Topology
The following example illustrates an installation with several strings for a maximum of up to 36 idRUs per
installation.
Figure 2-3. Example of a Cascaded idRU Topology with Several Strings
Up to 36 idRUs