DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Additional Maintenance Procedures
6-50Automatic Transmission Measurement System (ATMS)
6
TTL Type The type of terminating test line on the switch at t he far end of the trunk
to which the test call was mad e.
Threshold
Values The list of marginal and unacc eptable threshold valu es for each type of
measurement. These are defined on the trunk g roup form.
Trk Mem The trunk member number.
Test Date The month and day this trunk was last tested .
Test Time The time of day this trunk was last tested.
Tst Rslt The results of the trunk transmission test as follows:
pass
The test call completed successfully and trunk p erformance was
satisfactory
marg
Trunk measurements exceeded the marg inal threshold, but not the
unacceptab le.
fail
Trunk measurements exceeded the unacceptab le threshold.
xxxx
A numerical error code ind icates the reason for an aborted test c all. The
codes are explained in the CO-TRK and TIE-TRK sections of Chapter 9,
‘‘ABRI-PORT (ASAI ISDN-BRI Port)’’.
blank
A blank line indicates t hat no measurements have been made on this
trunk since the databas e was last initialized.
1004Hz-los
s Min Far-to-near and near-to-far measurements of 1004-Hz loss from low-level
tone.
1004Hz-los
s Max Far-to-near and near-to-far measurements of 1004-Hz loss at 0 d Bm.
Loss dev
at 404Hz These low-frequency transmission tests measure maximum p ositive and
negative deviation of + 9 and -9 dB from the 1004-Hz loss
measurements.
Loss dev
at 2804Hz These high frequency transmission tests measure m aximum positive and
negative deviation of + 9 and -9 dB from the 1004-Hz loss
measurements.
C-msg
Noise Maximum noise interference noise) terminating on a voice terminal within
the voice-band freq uency range (500 to 2500 Hz). The measurement
ranges from 15 to 55 dBrnC (d ecibels above referenc e noise).
C-ntch
Noise Maximum signal-depend ent noise interference on a line b etween 34 and
74 dBrnC.