GRASS VALLEY IQMIX25 Series, Руководство пользователя, Страница: 37 / 98

37
IQMIX25/40
User Manual
PTP - An Overview
PTP provides a mechanism for distributing a common reference clock throughout the system.
Each device maintains an internal clock that is synchronized to this common reference clock.
RTP timestamps within the RTP packet header (and extended header) are used for
synchronization.
Synchronization across multiple essence streams is achieved by comparing the offset between
the RTP timestamp and clock.
Setting Spigot Configuration
To set a new spigot configuration, follow these steps:
1 From the Configuration page, select the required software from the Software Version
pane, then select the firmware which provides the required combination of inputs, outputs
and flow standards from the list displayed on the
Card Firmware > New pane.
Note that Restore and Restart buttons are displayed only when an item not currently
installed is selected.
2 Enable the Reset to Defaults on Restart checkbox. This will cause existing details stored
on the module, other than network IP settings, to be cleared down prior to restarting the
module. See
Defaults on page 92 for more information.
3 Click Restart to restart the module and implement any changes made.
GUID Displays the absolute unique identifier associated with the
module.
Domain R uses domains to partition a network; only nodes on
the same domain can communicate with one another. A
domain is uniquely identified with a number and a friendly
name/alias.
Set an ID as required, then press Take to confirm the change.
Interface Configuration Displays the IP address for each Ethernet interface.
Card Firmware/Software
Version Each software version contains multiple firmware images.
These allow different spigot input/output and flow standard
combinations to be selected. See
Setting Spigot
Configuration , below, for more information.
Reset to Defaults on Restart Enable checkbox to cause any existing details stored on the
module, other than network IP settings, to be cleared down
prior to restarting the module. See
Setting Spigot
Configuration , below, and Defaults on page 92 for more
information.
IMPORTANT!
Existing details must be cleared down before establishing a new
configuration
. Failure to do this may result in unexpected behavior
from the module.
Option Operation