Monitoring Input Signal Performance - Symmetricom TSG-3800 Series User Manual

MTIE errors cause an immediate alarm and error message. The error message
displays the time and date of the alarm, the MTIE measurement, and the relevant
time interval.
Note: Recalling a list of the MTIE measurements may not show the
actual reading that exceeds the limit. To see current MTIE data, enter
STATUS or MTIE. Specifying a number on MTIE commands displays
stored, completed data.

Monitoring Input Signal Performance

Two commands are available to provide additional input signal performance
information. These are the MTIE command with start and stop times and the TDEV
command. The start and stop times specify the observation period for the
measurement. These commands provide information collected by the Input
modules and passed on through the CPU module on request from the user. This
information has no effect on system operation, but is provided for signal monitoring
only. These commands provide signal stability information in addition to the phase,
frequency, and current MTIE data previously described. They are primarily provided
for performance monitoring systems that will give graphs of input signal
performance. For more information, see
Command, on page 356.
Monitoring MTIE
To retrieve the MTIE data for an input signal over a selected time period, type:
MTIE {input} [MM/DD/YY] [HH:MM:SS]
The first line of the response gives the ACTUAL start and stop date and times used
in the calculation. These may vary from the requested times depending on the
actual data available in the module. The response gives the MTIE in nanoseconds
for the time intervals listed. The time intervals listed range from 0.05 to 10,000
seconds, with the highest determined by the observation time period covered by the
command or the available data.
Monitoring TDEV
To retrieve the TDEV data for an input signal over a selected time period, type:
TDEV {input} [MM/DD/YY] [HH:MM:SS]
The response is multiple lines of output giving the data available for the time period
specified.
12778474-002-2 Revision F – March 2004
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Setting Up Input Reference Controls
MTIE Command, on page 352 and
then press Enter
then press Enter.
TSG-3800 User's Guide
Operating the TSG-3800
TDEV
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