Service manual

Encore — Installation and Service Manual 81
System Controller Web Pages
Current Time
The Current Time line reports the current time and date being used by that
SCB. The reference source being used for each is shown by the
Time Source
and
Date Source fields. Possible Time sources are VITC, SNTP, and Frame
Count Server. Possible Date sources are SNTP and a manually set System
Date.
The various synchronization methods available operate in conjunction
with Vertical Interval Time Code (VITC) as follows:
When VITC is present, it will always be used for the time source. When
SNTP is active, it will always be used for the date source, and if VITC is not
present SNTP will also be used for the time source. If SNTP is not active,
the date will need to be set manually on each SCB. If neither VITC or SNTP
is being used, the Frame Count Serve is available to synchronize Encore
system devices on the network. When the Frame Count Server is used,
elapsed time since reset, not time of day, will be displayed for the Current
Time, and the System Date will need to be set manually on each SCB.
Note All SCBs on the network should use the same time reference, especially if
they are configured as redundant pairs.
VITC
The Encore SCB Real Time Clock is synchronized to Vertical interval time
code (VITC) on startup when a color black reference containing VITC is
connected to the REF1 input.
Note If the VITC signal changes, the SCB must be rebooted before its clock will
reflect the new time. System time is synced with VITC time at startup only.
If VITC is not present, the system controller frame counts from zero on
start-up (which was the behavior for software earlier than 1.7).
The NTSC DF (drop frame) VITC setting is recommended for use with
NTSC Encore systems. This setting is accessed via the
TimeCode button on
the Encore OUI Router Controller Config screen.
SNTP Configuration
A Simple Network Time Protocol (SNTP) Client has been added to the
Encore SCB. This Client can work with an SNPT Server to synchronize time
over the networK. The SNTP Server typically runs on a Windows PC con
-
figured on the Encore network. The SNTP server is provided as part of
standard windows installation and provides Coordinate Universal Time
(UTC). The end user is responsible for adjusting UTC to match local time.
For example, California requires a UTC offset of -08:00.