Cobalt Digital COMPASS 9220 Bidirectional ASI_MPTS Gateway - Manual (Page 10)

10 9220-UM V1.1
o An ASI input can be the backup for an IP Input. For example, the IP input can be
the primary feed, and the ASI input a local feed that will be switched in if the
primary remote feed disappears.
o ASI protection switching: two ASI inputs can be configured as primary/backup
feeds for an ASI output. If the primary ASI input disappears, the 9220 will
connect the ASI output to the backup ASI input.
o Primary/backup IP streams on separate networks: an IP input in ETH1 can be
configured as the primary, and another IP input in ETH2 can be configured as
backup.
•
The unit continuously monitors both the primary and the backup transport streams. It
will only switch to the backup if it is active. In the situation where both streams are
inactive, and one of them starts flowing again, Connection Redundancy will recover
faster than Address/Port Redundancy.
•
A given input may be used as a primary or backup input for multiple output ports (up to 8
ports).
Note that the two redundancy levels can be combined. It is possible to have a primary and a
backup IP input port for some output port, and each of these two IP inputs may be configured for
Address/Port Redundancy.