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TimeHub 5500 TL1 Reference Manual
Performance Monitoring
097-55501-02 Issue 5: June 2003
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4
Latest Maximum Relative Time Interval Error
This measurement is displayed in nanoseconds (ns) and measures an input port’s
Latest Maximum Relative Time Interval Error (LMRTIE) at specific observation time
intervals. LMRTIE is based on the maximum phase deviation over an interval of
time.
LMRTIE values from 1 second to 24 hour observation times are available every
15 minutes. The 1 second data is available after 1 second and is updated each
1 second. The command format is:
RTRV-PM[-TSG]:[<tid>]:CLK-a:<ctag>::LMRTIE;
Response Format:
<sid> <date> <time>
M <ctag> COMPLD
"CLK a-b:LMRTIE-a,<monval>,<status>,,,<meas time>"...
;
The parameters which will be displayed in the response are listed below.
Parameter Value Description
CLK-a a = 0 to 4 Input port number of active clock card 555xx-01 (5 input)
a = 0 to 8 Input port number of active clock card 555xx-02 (9 input)
Parameter Value Description
CLK a-b a = 1 or 2 Clock card from which data was
collected
b = 1 to 4 Input port number of clock card from
which data was collected
LMRTIE-a a = 1S, 1M, 15M, 30M, 1H, 2H,
8H, 24H
Performance monitoring measurement
type, where a is the observation time
interval (refer to Table G for details).
Variable a can also be appended to
LMRTIE in RTRV-PM to obtain a
response for only that measurement
time
<monval> Calculated values for maximum phase variation of the input signal in ns
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