Nortel Networks DCT1900 - Manual (Page 336)

Technical Product Manual - DCT1900
Commissioning, Radio Coverage Verification
4-2 Comm-DCT1900/R8/mw
© 2000-2005
3. Move closer to each Base Station and check that the Portable Telephone locks to it (the DCA
should display the correct Base Station number).
After having checked that all Base Stations are operational, proceed to the area coverage test.
4.3 Area Coverage Test
The purpose of this test is to verify that the field strength is sufficient within the coverage area and
that the Base Station delay values are correct. Sufficient field strength and proper Base Station
delay values enable good speech quality everywhere within the covered area (rooms, elevator
shafts, staircases). This test is executed with two Portable Telephones and requires two persons.
Test
1.
Place the Portable Telephone in the DCA mode (refer to Section 7, "Maintenance" in this
manual).
2. Call the other Portable Telephone.
3. One Portable Telephone user should now start moving around in the covered area.
4. Both users must check that a good speech quality is maintained everywhere. Pay special
attention to areas such as edges of a building and areas behind metal structures where
reduced speech quality is likely.
5. Mark areas where RQI is not stable on 20
hex
and where cracking sounds or mutes are heard.
4.4 Radio Coverage Verification
This test procedure is in addition to 4.3, "Area Coverage Test."
Test
1.
Place the Portable Telephone in DCA mode (refer to Section 7, "Maintenance" in this manual).
2. Call the other Portable Telephone, or any other phone, and leave the call up for the duration of
the testing.
3. Select the new DCA menu item MER tests. Scroll down to GEN. Setup (yes), scroll down to
DCA-SERVICE (yes), scroll down to MER tests (yes).
4. Scroll down to MER long (yes). A counter on the upper left of the screen will start counting to
F03C (10 minutes). MER short counter will be set to 7D0 (20 seconds) if MER short is
selected.
5. MER test Portable user should now start moving around the covered area.
6. The test can be paused and/or unpaused using the
↑ key. The frame counter can be reset to
zero restarting the test using the
↓ key. Once the test is started it will not stop unless the test is
paused or the total number of frames is reached, regardless of whether or not the user stays in
a MER test screen.