DRU receive tests
11-35
Wireless Solutions
DualMode 800 Enclosure
Maintenance Manual
MTX08
SAT detect test
This test ensures that the DRU meets the minimum requirement of detecting a
Supervisory Audio Tone signal.
Step
Action
Observation
1
Ensure that the DRU configurations are as
listed in Table 11-1 for the SAT detect test.
2
Use the P command to query the SAT signal.
>P
The DRU will prompt for the signal to query:
Enter R, SAT, ST, or A
3
Enter the “SAT” option to query the SAT
signal.
>SAT
The RX SAT status shows:
N
The output message shows:
continuing Query..(hit return
to exit)
4
Using the communications monitor, apply a
-90 dBm on-channel RF signal modulated
with a 5970 Hz tone at
±
1.8 kHz deviation to
the DRU under test.
The RX SAT status on the screen should
show:
RX SAT: 0
5
Reduce the level of the RF signal until a “N”
is indicated at the RX SAT status on the
screen.
The RX SAT status on the screen shows:
RX SAT: N
6
Check the RF signal level on the
communications monitor.
The RF signal level must be:
less than -105 dBm
7
Record the RF signal level on the test forms.
8
Using the communications monitor, apply a
-90 dBm on-channel RF signal modulated
with a 6000 Hz tone at
±
1.8 kHz deviation to
the DRU under test.
The RX SAT status on the screen should
show:
RX SAT: 1
9
Reduce the level of the RF signal until a “N”
is indicated at the RX SAT status on the
screen.
The RX SAT status on the screen shows:
RX SAT: N
10
Check the RF signal level on the
communications monitor.
The RF signal level must be:
less than -105 dBm
11
Record the RF signal level on the test forms.
12
Using the communications monitor, apply a -
90 dBm on-channel RF signal modulated
with a 6030 Hz tone at
±
1.8 kHz deviation to
the DRU under test.
The RX SAT status on the screen should
show:
RX SAT: 2
- continued -
Summary of Contents for DualMode 800
Page 2: ......
Page 4: ......
Page 6: ...vi Publication history Nortel Networks Confidential 411 2051 500 Draft 00 01 November 1999...
Page 82: ...2 20 Periodic maintenance 411 2051 500 Draft 00 01 November 1999...
Page 90: ...3 8 Test equipment and precautions 411 2051 500 Draft 00 01 November 1999...
Page 100: ...5 6 Master Oscillator tests 411 2051 500 Draft 00 01 November 1999...
Page 106: ...6 6 Antenna and transmission line tests 411 2051 500 Draft 00 01 November 1999...
Page 116: ...8 4 Alarm Control Unit ACU tests 411 2051 500 Draft 00 01 November 1999...
Page 138: ...10 2 ICRM tests 411 2051 500 Draft 00 01 November 1999...
Page 200: ...12 10 Enclosure maintenance 411 2051 500 Draft 00 01 November 1999...
Page 208: ...A 8 Appendix A Frequency table 411 2051 500 Draft 00 01 November 1999...
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