User manual

Masterclock TCDS-A User Manual – Original – 2013-04-19
8
INITIAL OPERATION / SERVER ACQUISITION
After receiving power, the Masterclock Display will go
through an internal check. Time from the RTC backup will be
applied until the TIME CODE signal is acquired.
STATUS LED (LIGHT EMITTING DIODE)
The LED colons between the digits on the display will follow
the protocol after power is applied (operation is
configurable via WinDiscovery.
TIME ZONE OFFSETS
The Masterclock Display maintains time as UTC initially. A
Time Zone offset or bias can be provided to adjust the time
for display purposes. A bias can be set as a positive (+) or
negative (-) value. Expect a resolution of one second.
DAYLIGHT SAVING TIME
An automatic Daylight Saving Time (DST) adjustment can be
configured separately in addition to the Time Zone offset
mentioned above. DST begins on the second Sunday of
March at 2:00 AM (Local Time) and ends the first Sunday of
November at 2:00 AM (Local Time).
EU STANDARD – EUROPEAN UNION
In the European Union, daylight change times are defined
relative to the UTC time of day. Summertime Period begins
at 1:00 AM, UTC on the last Sunday of March and ends at
1:00 AM, UTC on the last Sunday of October.
FREEWHEELING ACCURACY
The TCDS-A Display has built-in provisions to allow it to
freewheel and maintain accuracy for extended periods in
the absence of Time Code. These features also allow the
unit to be set manually and run without Time Code with
precision.
LED STATE
STATUS INDICATION
Flashing Colons
No Reference: The device is not able to reference
TIME CODE
Solid Colons
Referenced Time: The device is receiving time
referenced from a TIME CODE server
Solid or Missing
Colons
A controller (RC500 or other device) commanded
countdown is in progress
If the Time Code input is different from
UTC, do not adjust the Time Zone and/or
DST offset. These will adjust automatically.
Daylight Savings Time (DST) adjustments
must be configured using the daylight time
option and not with the Time Zone offset
option in order to ensure proper year-
around operation.