Grass Valley Switcher Products - Manual (Page 27)

Switcher Products — Protocols Manual27
Kalypso & Zodiak Contribution Tally Protocol
The cycle period is the time (in fields) it takes to send one background con-
tribution update and three source name messages. Remaining time within
a cycle is used to send contribution changes. If no changes need to be sent,
the link goes idle during a cycle.
By design, the cycle period is also the time it takes to send all contribution
messages. This is the maximum time contribution information will be
inconsistent. Data is inconsistent when tally changes occur and more than
one message must be sent to communicate all changes.
Background contribution refresh is the time it takes to completely send all
contribution messages as background updates. This tells the tally system
designer how long it will take for their system to sync up to the switcher
should they connect after the switcher is up and idle.
Source name refresh is the time it takes to send all source name messages.