Avaya MCC1 Maintenance Procedures page 407

Field
Tst Rslt
1004Hz-loss
Min
1004Hz-loss
Max
Loss dev at
404Hz
Loss dev at
2804Hz
C-msg Noise
C-ntch Noise
SRL-LO
SRL-HI
ERL
Maintenance Procedures
December 2003
Description
The results of the trunk transmission test as follows:
• pass: the test call completed successfully and trunk
performance was satisfactory.
• marg: trunk measurements exceeded the marginal threshold,
but not the unacceptable.
• fail: trunk measurements exceeded the unacceptable
threshold.
• xxxx: a numerical error code indicates the reason for an
aborted test call. The codes are explained in the CO-TRK and
TIE-TRK sections of
Maintenance Alarms Reference (555-245-102).
• blank: indicates that no measurements have been made on this
trunk since the database was last initialized.
Far-to-near and near-to-far measurements of 1004-Hz loss from low-
level tone.
Far-to-near and near-to-far measurements of 1004-Hz loss at 0 dBm.
These low-frequency transmission tests measure maximum positive
and negative deviation of +9 and -9 dB from the 1004-Hz loss
measurements.
These high-frequency transmission tests measure maximum positive
and negative deviation of +9 and -9 dB from the 1004-Hz loss
measurements.
Maximum interference noise on a voice terminal within the voice-
band frequency range (500 to 2500 Hz). The measurement ranges
from 15 to 55 dBrnC (decibels above reference noise).
Maximum signal-dependent noise interference on a line between 34
and 74 dBrnC.
Singing return loss from 0 to 40 dB between the sum of the circuit
(repeater) gains and the sum of the circuit losses. SRL-LO occurs
most often in the frequency range of 200 to 500 Hz.
Singing return loss from 0 to 40 dB between the sum of the circuit
(repeater) gains on a circuit and the sum of the circuit losses. SRL-HI
occurs most often in the frequency range of 2500 to 3200 Hz.
Echo return loss from 0 to 40 dB between the level of signal strength
transmitted and the level of signal strength reflected. ERL occurs
most often in the frequency range of 500 to 2500 Hz.
Additional maintenance procedures
Automatic Transmission Measurement System
ABRI-PORT (ASAI ISDN-BRI Port) in
(2 of 2)
407