Mitel SX-200 Documentation page 722

SECTION MITL9105/911 O-096-500-NA
-
(4
W
Q
&I)
4.15
(a)
(b) If any tone generator has been busied-out, this test is skipped.
(cl The receiver and generator test is performed for each of four
tone digits ('1, 5, 9, a3 and for the rotary digit "6". It is also
performed for each pair of receivers in the system. If either has
been busied-out or if the receiver card is not present, the test
for that pair is skipped.
(d)
(4
The test is performed once per pass for dial tone.
Using each of the two receivers in turn, the test waits for the
receiver to become free, then connects it and the tone to the
speech path under test. After 350 ms, the dial tone detector is
checked to see if it has detected the tone.
If neither receiver detected the tone, it is assumed to be miss-
ing. Detection of a malfunction results in ERROR 013 - testing
for supervisory tone presence is no longer performed.
If one receiver detected the tone but the other did not, it is
assumed that the tone is present but one receiver is faulty. This
results in ERROR 014 - receiver is busied-out.
Receiver and Generator. The receiver and generator test is as
follows:
This test uses both the speech path under test and the 15th
higher speech path. If the speech path under test is numbered
17-31, the test is skipped.
Each digit is sent eight times, using all combinations of the two
receivers, two speech paths and two generators. If any errors
are detected, they are analyzed to see if they correspond to a
single receiver, speech path or generator error. If they do, the
error is reported as follows:
ERROR 008 (receiver, tone, error)
ERROR 009 (receiver, rotary, error)
ERROR 010 (generator error)
ERROR 011 (error isolated to a speech path).
If it is not possible to isolate which unit has failed, the error is
reported as ERROR 015 - probable receiver error. The generator
is busied-out to ensure that the error is not rereported in each
pass.
Errors 008-010 result in the receiver or generator being busied-
out. Error 011 could be either on the receiver card or the
generator card (tone control card), so no device is busied-out.
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