$!$ ! &! %
Connections between the console and RIO units are made using industry standard multimode (50 micron) duplex LC fibre
cable assemblies. Multimode fibre is adequate for cable runs of up to 550m. Suitable fibre cable assemblies are widely
available from cable suppliers.
Singlemode fibre multiplexers can be specified for the console and RIO as a cost option but will extend the console build time.
Matching singlemode connectors and cable assemblies will be required. Singlemode cable is suitable for distances of up to
2
km.
The primary MADI connection between the console and any RIO will provide 62 channels of bi-directional audio data*.
Subsequent links added to the same RIO will extend the capacity by 64 channels for each lead up to a maximum of 254
channels with four leads connected.
*Although MADI links have the capacity for up to 64 channels of audio, slots 63 and 64 on the primary link are allocated for
sync reference and the transfer of SNMP status information.
$' + !"&! %
The standard connection method detailed above provides the maximum number of audio channels. For installations where
it is considered necessary to have redundant fibre connection or backup processing capacity the RIO can be configured
to accommodate these requirements.
• Link Redundancy
To protect against the loss of a fibre connection, the links between the console and a RIO can be configured to
operate as two redundant pairs (main plus backup) rather than as four individual links. In this arrangement MADI
fibre port 2 would function as the backup for the primary link (port 1) and MADI port 4 would backup the second
link (port 3). When working in this configuration the maximum number of channels that can be accommodated will
be limited to 126 (consisting of the primary 62 channel link plus a second 64 channel link).
• Processor redundancy
Where console CPU redundancy has been specified, RIO MADI ports 3 and 4 are now connected to the backup
processor (as shown opposite). If there should then be a failure of the primary console processor, its backup would
already be connected to the RIO. As with link redundancy, the maximum number of I/O channels available is 126.
• Link Redundancy with Processor redundancy
Link redundancy can also be combined with processor redundancy to provide the highest level of security. Note
however, that the maximum channel count will now be reduced to 62 channels.
C10 HD Installation Manual Section 6: Appendices | Page 6-23
H: The RIO
To Next Page
Loading...
Need help?
General