User's Manual

TimeLord Master Clocks
Operating and Installation Instructions
Issue 2.0
2-7
Leap Second Insertion
The TimeLord can be programmed to allow for leap second
insertion (one second is sometimes added at the end of March,
June, September or December), to compensate for the
deceleration of the Earth’s rotational time with respect to the
the Atomic clock (UTC).
This function is enabled by programming the ‘LS’ setting to yes
(as shown on page 2-6).
Date, Sychronisation, Impulse Time and
temperature Status Displays
When in normal time display mode the plus and minus buttons
can be used to cycle through the date, synchronisation, impulse
time (-02 versions) and temperature (expandable versions) status
displays. When any of these displays is selected the TimeLord
will return to normal time display mode after 2 minutes.
The Synchronisation status display provides useful information
regarding the current quality of the MSF or DCF signals that
are being received by a V-484 series radio receiver.
The two Impulse time displays indicate the Impulse time of
both Impulse channels. Please refer to chapter 12 for further
information.
The Temperature status display shows the internal
temperature of the TimeLord Master Clock (not TimeLord-Lite).
Synchronisation Status Display
The synchronisation status display provides the following
information relating to MSF or DCF signal reception.
Impulse time
screens will only
appear on -02
impulse versions.
Temperature
status screen will
only appear on
expandable versions.
Normal time display
Synchronisation status display.
Date display.
Normal time display
Indicates the number of seconds of the
current time message that have been
received. ‘Aq’ indicates that the
TimeLord
is trying to acquire the first second
of a new time message.
Indicates the number of valid time
messages received. Incremented for
every good message decremented for
every corrupt message. (Range 0-F)
The number of minutes before the
TimeLord
declares that it has lost lock to
the input signal. (Range 0-F)
The synchronisation lockout counter, the
number of minutes of valid, but
different time messages required
before the
TimeLord will synchronise
to the new time. (Range 0 - 9)
Temperature status display.
Impulse channel 1 time display.
Impulse channel 2 time display.