are enabled and the card is in “broadcast” mode. (Events are still queued
even if they are not broadcast, and are transmitted once the signature con-
trol conditions permit.) For more information on Signature Control, see "Sig-
nature Control" on page183.
Format: Selects the format of the message to be outputted. Refer to "Event
Broadcast Time Code Formats" on page552 for a description of all of the
available formats.
The Event Broadcast card only supports two formats (Event Broadcast
Format 0 and Event Broadcast Format 1), and only supports the output of
one message per event. If format is set to “None”, no messages will be
queued in the Message Buffer.
Output Mode: This field determines when the output data will be provided.
Available Mode selections are as follows:
Broadcast—Event Messages are automatically broadcast when they
are created by an event. If a new event happens while an older mes-
sage is being broadcast, the new message will be queued in a “First-
in, First-out” manner. When the message has finished, the next mes-
sage out of the queue will be broadcast.
Request—Event Messages are only broadcast in response to a
Request Character. New messages will be queued in a “First-in, First-
out” manner.
Request character: This field defines the character that SecureSync needs
to receive in order for a message to be provided when in “Request” mode.
This field will only appear if the Output Mode is set as “Request Broadcast.”
Timescale—Used to select the time base for the incoming ASCII time
code data. The entered Timescale is used by the system to convert
the time in the incoming ASCII data stream to UTC time for use by the
System Time. The available choices are:
UTC—Coordinated Universal Time ("temps universel coordonné"),
also referred to as ZULU time
TAI—Temps Atomique International
GPS—The raw GPS time as transmitted by the GNSS satellites (as of
22-August-2023, this is 18 seconds ahead of UTC time)
A local clock set up through the Time Management Page—This
option will appear under the name of the local clock you have set up.
548 SecureSync 2400 User Manual
APPENDIX
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