Fine Tuning The H.100 Clocking Configuration; Default H.100 Clocking Configuration - Dialogic Vision CX Video Administration Manual

Dialogic® Vision™ CX Video Gateway Administration ManualFine tuning the CX Video Gateway configuration

Fine tuning the H.100 clocking configuration

The CX Video Gateway includes an H.100 clock manager that synchronizes the
server's boards. By default, the H.100 clock manager starts automatically when the
gateway starts up, if the gateway has more than one media board.

Default H.100 clocking configuration

By default, H.100 clocking is configured for standalone operation
(Clocking.HBus.ClockMode=STANDALONE), as specified in the oamsys.cfg file.
Clocking configuration for ISUP models
For ISUP models, the signaling timeslot is split on different trunks and boards for
reliability. There is one signaling trunk defined on each media board. The following
table describes the default clocking configuration for an ISUP system with one or two
media boards:
Clock Default configuration
component
Primary master Set on media board 1 and drives A_CLOCK.
Uses the most reliable signaling trunk on the given media board as the first timing
reference.
Falls back to NETREF.
Secondary Set on media board 2 and drives B_CLOCK.
master
Uses the primary master as the first timing reference.
Falls back to the most reliable trunk on the given media board, other than the one
driving the primary master.
Note: For servers with one media board, there is no secondary master.
Signaling board Slave on A_CLOCK.
Falls back to B_CLOCK.
Note: For servers with dedicated signaling links, the signaling board is not
connected on the H.100 bus.
Clocking configuration for ISDN models
For ISDN models, all trunks carry a signaling link (D channel) for synchronization.
The following table describes the default clocking configuration for an ISDN system
with two media boards:
Clock Default configuration
component
Primary master Set on media board 1 and drives A_CLOCK.
Uses the most reliable signaling trunk on the given media board as the first timing
reference.
Falls back to NETREF.
Secondary Set on media board 2 and drives B_CLOCK.
master
Uses the primary master as the first timing reference.
Falls back to the most reliable trunk on the given media board, other than the one
driving the primary master.
Note: For servers with one media board, there is no secondary master.
Dialogic 123