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12778474-002-2 Revision F – March 2004
TSG-3800 User’s Guide 339
System Administrator’s Reference
Provisioning Input Reference Signals
Example
Purpose: Set the INP2.1 Frequency limit 1 to REPORT fault mode.
Command:
FREQUENCY 2.1 MODE L1 REPORT
Display:
TSG
-
>FREQUENCY 2.1 MODE L1 REPORT
«date» «time» «oper» Set «input» Freq Alarm Mode 1 to
Report, was Alarm
TSG->
Setting Frequency Limits
To set the Frequency fault limits, type:
FREQUENCY «input» [T100|T1000|T10000] LIMIT [L1|L2] «limit»
then press
Enter
where «input» is described in
Table B-3
(default is all inputs)
T100, T1000 and T10000 is the time scale in seconds (default
is T100)
«limit» is the limit in ps/s (maximum 1 000 000)
Example
Purpose: Set the Frequency limit 2, 10,000-second interval, to 700 ps/s.
Command:
FREQUENCY INP2.1 T10000 LIMIT L2 700
Display:
TSG->FREQUENCY 2.1 T10000 LIMIT L2 700
«date» «time» «oper» Set «input» Freq (10,000 secs) Limit 2
to 700, was 248
TSG->
Preventing Faults in MTIE and FREQ Data
In some situations, bad references can accumulate large frequency and MTIE
offsets. Even after correcting the problem, the accumulated phase/frequency offset
data is maintained. This can cause the reference to fail the next interval’s
measurement, which can be up to be three hours later.
To prevent MTIE or frequency measurements from causing a fault at the end of the
next measurement interval, you can issue the Inhibit command. After entering the
command, the TSG-3800 will not fault due to excessive MTIE/frequency offsets
during the measurement interval. Use this command is after a bad reference has
been replaced or corrected.
To prevent previous MTIE data from generating a fault in the next measurement
interval, type:
MTIE «input» INHIBIT
then press
Enter
where «input» is described in
Table B-3
(default is all inputs)
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