Specifications

5-38
System Command Reference Section
Error Detector Measurement Functions
FETCH[:SENSe[1]]:EFINterval
This is a contraction of Error Free INterval and returns a count of the number of time
intervals, the duration of which is selected by the next node, in which no error was
detected. The four time interval classifications are:
:SEConds? <NR3> One second
:DSEConds? <NR3> One decisecond
:CSEConds? <NR3> One centisecond
:MSEConds? <NR3> One millisecond
FETCH[:SENSe[1]]:LOSS:POWer? <NR3>
This is the count of the number of seconds for which power was lost, since the start of the
gating period.
If the Error Detector is not connected to an Agilent 70004A Display, then this
measurement is not available. If received, then it will return 9.91 x E+37 (Not-A-Number,
NAN).
FETCH[:SENSe[1]]:LOSS:SYNChronisat? <NR3>
This is the count of the number of seconds for which the incoming pattern was not
synchronized to the reference pattern, during the gating period.
FETCH[:SENSe[1]]:G821
This node returns a percentage of seconds that have been classified according to the
CCITT’s G.821 specification. The subordinate nodes, representing the classifications, are:
:AVAilability? <NR3> % Availability
:UNAVailabili? <NR3> % Unavailability
:SESeconds? <NR3> % Severely Errored Seconds
:DMINutes? <NR3> % Degraded MINutes
:ESEConds? <NR3> % Errored SEConds
FETCH[:SENSe[1]]:GATE
This node is used to return information about the gating period.