WorldCast Equinox - Release 3.1 - user manual
– 07/2011
Page 165
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7.2. Backing up an X.21 Connection Using IP
When the WorldCast Equinox is configured for a primary X.21 connection and a secondary backup IP connec-
tion any break in the primary audio data will force the codecs to establish a connection on the backup IP link.
Begin by setting up one of the IP speed dials on the slave unit as a backup speed dial
– see section 5.6.1 Set-
up IP Profiles or section 6.6.5 CNX-IP Speed Dials. Select IP as the secondary connection and select the pre-
viously configured speed dial
– see section 5.5.5.2 IP as Secondary Network Connection and section 6.6.1
CNX-Mode/Status.
Next set up the X.21 primary connection on both units
– select X.21 as the primary connection and choose an
audio profile to use
– see section 5.5.1.1 X21 as Primary Network Connection and section 6.6.1 CNX-
Mode/Status/section 6.6.2 CNX-X21. Note that both units primary connection must have the same audio profile
and it must match the X.21 line speed
– but this can be different from the audio profile used for the backup
connection.
Finally set up one of the IP speed dials on the master unit as a backup speed dial
– see section 5.6.1 Setup IP
Profiles or section 6.6.5 CNX-IP Speed Dials. The audio profile must match the one used in the slave unit for
backup. Select IP as the secondary connection and select the previously configured speed dial
– see section
5.5.1.2 IP as Secondary Network Connection and section 6.6.1 CNX-Mode/Status
Whenever the primary connection is lost the master will connect to the slave over IP. Whenever the connection
is restored the IP connection is dropped.
Note:
Whenever the X.21 connection is restored an internal countdown timer will be started
– switch-
ing back to X.21 is initiated whenever the count is complete. The X.21 connection must remain stable
during the countdown period. If you leave the idle screen (e.g. to set some menu items) the count-
down will be paused until you return to the idle screen again.
IP
Network
X.21
Network
Master
Equinox
Slave
Equinox
IP
X.21
