M e r i d i a n I I U s e r M a n u a l
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C H A P T E R T H R E E
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M e r i d i a n I I U s e r M a n u a l
C O N T R O L A N D S T A T U S C O M M A N D S
YEAR
is the year of the UTC timestamp of the most recent update received from the GPS Sub
system.
DOY
is the day-of-year of the UTC timestamp of the most recent update received from the
GPS Subsystem.
HH:MM:SS is the hour, minute and second ot the UTC timestamp of the most recent update received
from the GPS Subsystem.
LS
is the current number of leap seconds difference between the UTC and GPS timescales
(18 at the time of this writing).
Below is an example of a typical response to this command:
Command:
sysstat
MeridianII reply:
LOCKED TO GPS, Offset = +0.000000024, LI = 00, TFOM = 4 @ 2013 012 06:03:10 18
systemio
This command returns the current settings for all installed, system-wide I/O signals. These signals
may be routed to CPU Module connectors and/or the optional Plug-In Modules. These signals are
the 1 PPS Output, the Time Code Output, the Direct Digital Synthesizer (DDS) Output and the Serial
Time Output. See
Chapter 10 - Rear-Panel I/O
for information on the various options.
Command:
systemio
MeridianII reply:
System I/O Signal 1 PPS OUTPUT is Installed --
Current Setting = 1 Milliseconds Pulse Width
System I/O Signal TIME CODE OUTPUT is Installed --
Current Setting = IRIG-B122/B002 Format
systemioconfig
This command is an interactive utility that allows the root user to modify the settings for all installed,
system-wide I/O signals. See
Chapter 10 - Rear-Panel I/O
for information on the various options
and modules.
Command:
systemioconfig
MeridianII reply: Interactive shell script is started.
systimemode
This command displays the current time mode for the front-panel display, the Time Code Output
and the optional Serial Time Output. Time modes are UTC, GPS and LOCAL. The displayed Lo-
cal Time Offset from UTC and the DST Start/Stop parameters are only valid when the time mode is
LOCAL. A positive Local Time Offset implies a longitude east of the Greenwich meridian and that
Local time is ahead of UTC.
Summary of Contents for Meridian II
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