DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1801TONE-PT (Tone Generator)
9
b. Refer to TONE-BD (Tone-Clock Circuit Pack) section for descrip tions of
these tests.
c. Refer to TDM-CLK (TDM Bus Clock) section for descriptions of these tests.
d. This test only runs on the Standby Tone-Clock circuit pac k in a Port
Network with more than one Tone-Clock circuit pack (Hig h or Critical
Reliability Option). The circuit p ack must be a TN780 code with fir mware
revision 2 or above.
e. Test #149 does not run on the TN2182.
Tone Generator Transmission Test (#40)
The purpose of this test is to verify that the tone generati on hardware on the
tone-clock circ uit pack is capab le of generating a subs et of system tones and a
set of test tones. This test does not verify all system tones the tone g enerator
produces durin g normal system operation.
The test is performed in two parts. For the first par t, the Tone Generator is told to
generate the touch-tone dig its. The digits are received and checked b y a Tone
Detector touch-tone detec tor. If any of the digits fail, the test is repea ted using a
touch-tone detector in another Tone Detector circ uit pack.
For the second part, the Tone Generator is told to generate c all progress tones
that are detected and identified by a tone d etector. These tones are:
■440 Hz
■2225 Hz
■Digital Count
The tone generator is then told to generate a seq uence of test tones whose
output levels are measured by a tone d etector. These tones are:
■404 Hz at 0 dB
■1004 Hz at -16 dB
■1004 Hz at 0 dB
■2804 Hz at 0 dB
A Tone Detector general purpose tone detec tor listens for the tones and
measures the quality of the tone. If any of the measured values are not within
limits, the test is repeated using a general purpose tone d etector in a different
Tone Detector circuit pack. If the values are still ou t of the limits, the test will fail.
For all the failure cases of Test #40, do the following:
1. Check that all Tone Detector circuit packs h ave the same companding
mode as that administered fo r the system. Correct the situation if there is a
mismatch.
2. Run the long test sequence: test tone-clock PC long repeat 1.