Nokia Solutions and Networks T6EF1 CDMA Base station transmitter User Manual 1X SC4812T BTS Optimization ATP Release 2 16 3 x

Nokia Solutions and Networks CDMA Base station transmitter 1X SC4812T BTS Optimization ATP Release 2 16 3 x

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Users Manual 3

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Document DescriptionUsers Manual 3
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Document TypeUser Manual
Display FormatAdobe Acrobat PDF - pdf
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Date Submitted2004-05-28 00:00:00
Date Available2004-05-20 00:00:00
Creation Date2003-11-06 11:47:19
Producing SoftwareAcrobat Distiller 6.0 (Windows)
Document Lastmod2003-11-06 11:52:06
Document Title1X SC4812T BTS Optimization/ATP; Release 2.16.3.x
Document Author: Motorola

Bay Level Offset Calibration
68P09258A31–A
Test Equipment Set-up for RF Path Calibration
Follow the procedure in Table 3-35 to set up test equipment.
Table 3-35: Set Up Test Equipment for RF Path Calibration
Step
Action
If it has not already been done, refer to the procedure in Table 3-5 (on page 3-17) to interface the LMF
computer terminal to the frame LAN A connector.
If it has not already been done, refer to Table 3-6 (on page 3-26) to start a GUI LMF session.
If required, calibrate the test equipment per the procedure in Table 3-27 (on page 3-78).
NOTE
Verify the GPIB controller is properly connected and turned on.
! CAUTION
To prevent damage to the test equipment, all transmit (TX) test connections must be via the 30 dB
directional coupler for 800 MHz with an additional 20 dB in–line attenuator for 1.7/1.9 GHz.
For TX path calibration, connect the test equipment as shown in Figure 3-16, Figure 3-17, or
Figure 3-19, depending on the communications analyzer being used.
Transmit (TX) Path Calibration Description
The assigned channel frequency and power level (as measured at the top
of the frame) for transmit calibration are derived from the site CDF files.
For each BBX, the channel frequency is specified in the ChannelList
CDF file parameter and the power is specified in the SIFPilotPwr
CDF file parameter for the sector associated with the BBX (located
under the ParentSECTOR field of the ParentCARRIER CDF file
parameter).
NOTE
If both the BTS–x.cdf and CBSC–x.cdf files are current, all
information will be correct on the LMF. If not, the carrier and
channel will have to be set for each test.
The calibration procedure attempts to adjust the power to within +0.5 dB
of the desired power. The calibration will pass if the error is less than
+1.5 dB.
The TX Bay Level Offset at sites WITHOUT the directional coupler
option, is approximately 42.0 dB ±3.0 dB.
S At sites WITHOUT RFDS option, BLO is approximately
42.0 dB ±4.0 dB. A typical example would be TX output power
measured at BTS (36.0 dBm) minus the BBX TX output level
(approximately –6.0 dBm) would equate to 42 dB BLO.
The TX Bay Level Offset at sites WITH the directional coupler option,
is approximately 41.4 dB ±3.0 dB. TX BLO = Frame Power Output
minus BBX output level.
S Example: TX output power measured at RFDS TX coupler
(39.4 dBm) minus the BBX TX output level (approximately
–2.0 dBm) and RFDS directional coupler/cable (approximately
–0.6 dBm) would equate to 41.4 dB BLO.
Oct 2003
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Bay Level Offset Calibration
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TX Calibration and the LMF
The LMF Tests > TX > TX Calibration... and Tests > All Cal/Audit...
selections perform TX BLO calibration testing for installed BBX(s). The
All Cal/Audit... selection initiates a series of actions to perform TX
calibration, and if calibration is successful, download BLO and perform
TX audit. The TX Calibration... selection performs only TX
calibration. When TX Calibration... is used, BLO download and TX
audit must be performed as separate activities. The CDMA Test
Parameters window which opens when TX Calibration... or All
Cal/Audit... is selected contains several user–selectable features which
are described in the following subsections.
Rate Set Drop-down Pick List
The Rate Set Drop–down Box is enabled if at least one MCC card is
selected for the test. The available options for TX tests are 1 = 9600, and
3 = 9600 1X. Option 3 is only available if 1X cards are selected for the
test. The available transfer rate options for RX tests are 1 = 9600 and
2 = 14400. Option 2 is only available if no 1X cards are selected.
Verify BLO
In both the TX Calibration and All Cal/Audit dialog boxes, a Verify
BLO checkbox is provided and checked by default. After the actual TX
calibration is completed during either the TX Calibration or All
Cal/Audit process, the BLO derived from the calibration is compared to
a standard, acceptable BLO tolerance for the BTS. In some installations,
additional items may be installed in the transmit path. The additional
change in gain from these items could cause BLO verification failure
and, therefore, failure of the entire calibration. In these cases, either the
Verify BLO checkbox should be unchecked or the additional path losses
should be added into each applicable sector using the
Util>Edit>TX Coupler Loss... function.
Single-Sided BLO Checkbox
Another option that appears in the pull–down menu is Single–sided
BLO. Normally valid BLO values are some value plus–or–minus some
offset. The ranges that we currently use for calibration are wider than
necessary to accommodate the redundant BBX. The lower half of that
range is where non–redundant BBXs should be. When Single–sided
BLO is selected, the result is only considered a success if it is in the
lower half of the range. If it was normally a success from 37–47 (which
is 42 "5), Single–sided BLO would make it a success only if the result
was from 37–42. To get the more stringent conditions, the operator
checks Single–sided BLO when calibrating non–redundant transceivers.
Single–sided BLO carries the likelihood of more failures. This option
should only be used by experienced CFEs.
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Bay Level Offset Calibration
68P09258A31–A
Test Pattern Drop-down Pick List
The Tests > TX > TX Calibration... menu window has a Test Pattern
pull–down menu. This menu has the following choices:
S Pilot (default) – performs tests using a pilot signal only. This pattern
should be used when running in–service tests. It only requires a BBX
to do the test.
S Standard – performs the tests using pilot, synch, paging and six
traffic channels. This pattern should be used on all non–in–service
tests. Standard requires a BBX and an MCC. Standard uses gain
values specified by the IS97 standard.
S CDFPilot –performs the tests using the pilot signal, however, the gain
is specified in the CDF file. Advanced users may use CDFPilot to
generate a Pilot pattern using the value specified by the PilotGain
parameter in the CDF file instead of a pre–determined value.
S CDF – performs the tests using pilot, synch, paging and six traffic
channels, however, the gain for the channel elements is specified in
the CDF file. Advanced users may use CDF to generate a standard
pattern. Instead of using the values specified by IS97, the settings for
the following CDF parameters are used:
– PilotGain
– PchGain
– SchGain
– NomGain1Way
Set-up for TX Calibration
The workaround in Table 3-36 allows the user to manually set the BLO
limits to ensure that the redundant BBX BLO test does not fail due to the
preset offset being incorrectly set for the frame under test. A future LMF
release will correct this problem.
Table 3-36: Initial Set-up for TX Calibration
n Step
Oct 2003
Action
Delete the existing calibration file (if any) from the BTS folder on LMF
laptop from the location C:\wlmf\cdma\bts–#, where # is the BTS
number.
To edit the nominal TX BLO, from the Util menu, select Edit > TX
Nominal Offset. In the TX Cal Parameter window, make any necessary
changes to ensure the Tx BLO Nominal Offset (in dB) is correct:
– For 800 MHz, the value is 45.0 (dB), OR
– For 1900 MHz, the value is 43.0 (dB).
Download the data, which includes BLO values, to all the BBXs. From the
Device menu, select Download > Data
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Bay Level Offset Calibration
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TX Calibration
WARNING
Before installing any test equipment directly to any TX OUT
connector, first verify there are no CDMA BBX channels
keyed. Failure to do so can result in serious personal injury
and/or equipment damage.
CAUTION
Always wear an approved anti–static wrist strap while handling
any circuit card or module. If this is not done, there is a high
probability that the card or module could be damaged by ESD.
All Cal/Audit and TX Calibration Procedure
The LMF All Cal/Audit and TX calibration procedures are essentially
identical, except for the step that selects the type of procedure desired
(Refer to Step 4 in Table 3-37).
Prerequisites
Before running this procedure, be sure that the following have been
done:
S The card in slot CSM 1, GLIs, MCCs, and BBXs have correct code
and data loads.
S Primary CSM and MGLI are INS_ACT (bright green).
S All BBXs are OOS_RAM (yellow).
S If running calibration or audit using a test pattern other than Pilot,
MCCs are INS_ACT (bright green).
S Test equipment and test cables are calibrated and connected for TX
calibration.
S LMF is logged into the BTS in the GUI environment.
NOTE
Verify all BBX boards removed and repositioned have been
returned to their assigned shelves/slots. Any BBX boards moved
since they were downloaded will have to be downloaded again.
All Cal Audit/TX Path Calibration procedure
Follow the procedure in Table 3-37 to perform the All Cal/Audit and TX
path calibration test.
Table 3-37: All Cal/Audit and TX Calibration Procedure
n Step
3-92
Action
If it has not already been done, configure test equipment for TX calibration by following the
procedure in Table 3-35.
Click on the BBX(s) to be calibrated.
If the Test Pattern to be used is Standard, CDFPilot, or CDF, select at least one MCC (refer to
“Test Pattern Drop–down Pick List” under “TX Calibration and the LMF” in this section).
. . . continued on next page
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Bay Level Offset Calibration
68P09258A31–A
Table 3-37: All Cal/Audit and TX Calibration Procedure
n Step
Action
For All Cal Audit...
– Click Tests in the BTS menu bar, and select TX > All Cal/Audit... from the pull–down
menus. A CDMA Test Parameters window will appear.
For TX Calibration
– Click Tests in the BTS menu bar, and select TX > TX Calibration from the pull–down
menus. A CDMA Test Parameters window will appear.
Select the appropriate carrier(s) and sector(s) (carrier-bts#-sector#-carrier#) from those displayed
in the Channels/Carrier pick list.
NOTE
To select multiple items, hold down the Shift or Ctrl key while clicking on pick list items to
select multiple carrier(s)–sector(s).
Verify that the correct channel number for the selected carrier is shown in the Carrier # Channels
box. If it is not, obtain the latest bts–#.cdf (or bts–#.necf) and cbsc–#.cdf files from the CBSC.
NOTE
If necessary, the correct channel number may be manually entered into the Carrier # Channels
box.
If at least one MCC was selected in Step 3, select the appropriate transfer rate (1 = 9600, 3 = 9600
1X) from the drop–down list in the Rate Set box.
NOTE
The rate selection of 3 is only available if 1X cards are selected for the test.
If Verify BLO is to be used during the calibration, leave the checkbox checked (default).
If Single–Sided BLO is to be used during the calibration, click on the checkbox.
* IMPORTANT
Single–Sided BLO should only be used for primary BBXs. Do not check the box when
calibrating the redundant BBX.
10
In the Test Pattern box, select the test pattern to use for the calibration from the drop–down list
(refer to “Test Pattern Drop–down Pick List” under “TX Calibration and the LMF” in this section
– see page 3-91).
11
Click OK to display the status report window followed by a Directions pop-up window.
12
Follow cable connection directions as they are displayed. When the calibration process is
completed, results will be displayed in the status report window.
13
Click on the Save Results or Dismiss button, as desired, to close the status report window.
Exception Handling
In the event of a failure, the calibration procedure displays a FAIL
message in the status report window and provides information in the
Description field.
Recheck the test setup and connection and re–run the test. If the tests fail
again, note specifics about the failure, and refer to Chapter 6,
Troubleshooting.
Oct 2003
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Bay Level Offset Calibration
68P09258A31–A
Download BLO Procedure
After a successful TX path calibration, download the bay level offset
(BLO) calibration file data to the BBXs. BLO data is extracted from the
CAL file for the Base Transceiver Subsystem (BTS) and downloaded to
the selected BBX devices.
If a successful All Cal/Audit was completed, this procedure
does not need to be performed, as BLO is downloaded as part of
the All Cal/Audit.
NOTE
Prerequisites
Ensure the following prerequisites have been met before proceeding:
S BBXs being downloaded are OOS–RAM (yellow).
S TX calibration is successfully completed.
Follow the steps in Table 3-38 to download the BLO data to the BBXs.
Table 3-38: Download BLO
n Step
Action
Select the BBX(s) to be downloaded.
Click Device in the BTS menu bar, and select Download
> BLO from the pull–down menus. A status report
window displays the result of the download.
NOTE
Selected device(s) do not change color when BLO is
downloaded.
Click on OK to close the status report window.
Calibration Audit Introduction
The BLO calibration audit procedure confirms the successful generation
and storage of the BLO calibration offsets. The calibration audit
procedure measures the path gain or loss of every BBX transmit path at
the site. In this test, actual system tolerances are used to determine the
success or failure of a test. The same external test equipment set up is
used.
NOTE
3-94
RF path verification, BLO calibration, and BLO data download
to BBXs must have been successfully completed prior to
performing the calibration audit.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Bay Level Offset Calibration
68P09258A31–A
TX Path Audit
Perform the calibration audit of the TX paths of all equipped BBX slots
per the procedure in Table 3-39
WARNING
Before installing any test equipment directly to any TX OUT
connector, first verify there are no CDMA BBX channels
keyed. Failure to do so can result in serious personal injury
and/or equipment damage.
NOTE
If a successful All Cal/Audit was completed, this procedure
does not need to be performed, as BLO is downloaded as part of
the All Cal/Audit.
TX Audit Test
The Tests menu item, TX Audit, performs the TX BLO Audit test for a
BBX(s). All measurements are made through the appropriate TX output
connector using the calibrated TX cable setup.
Prerequisites
Before running this test, ensure that the following have been done:
CSM–1, GLIs, and BBXs have correct code load and data load.
Primary CSM and MGLI are INS.
All BBXs are OOS_RAM.
Test equipment and test cables are calibrated and connected for TX
BLO calibration.
S LMF is logged into the BTS.
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Bay Level Offset Calibration
68P09258A31–A
TX Path Audit procedure
After a TX calibration has been performed, or if verification of BLO data
in the CAL file is required, follow the procedure in Table 3-39 to
perform a BTS TX path audit.
Table 3-39: BTS TX Path Audit
n Step
Action
If it has not already been done, configure test equipment for TX path audit by following the procedure
in Table 3-35 (TX audit uses the same configuration as TX calibration).
Select the BBX(s) to be audited.
If the Test Pattern to be used is Standard, CDFPilot or CDF, select at least one MCC (refer to
“Test Pattern Drop–down Pick List” under “TX Calibraton and the LMF” in this section).
Click Tests in the BTS menu bar, and select TX>TX Audit... from the pull–down menus. A
CDMA Test Parameters window will appear.
Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) from those displayed in the
Channels/Carrier pick list.
NOTE
To select multiple items, hold down the Shift or Ctrl key while clicking on pick list items to
select multiple carrier(s)–sector(s).
Verify that the correct channel number for the selected carrier is shown in the Carrier # Channels
box. If it is not, obtain the latest bts–#.cdf (or bts–#.necf) and cbsc–#.cdf files from the CBSC.
NOTE
The correct channel number may be manually entered into the Carrier # Channels box.
If at least one MCC was selected in Step 2, select the appropriate transfer rate (1 = 9600, 3 = 9600
1X) from the drop–down list in the Rate Set box.
NOTE
The rate selection of 3 is only available if 1X cards are selected for the test.
Select Verify BLO (default) or Single–sided BLO.
NOTE
Single–sided BLO is only used when checking non–redundant transceivers.
In the Test Pattern box, select the test pattern from the drop–down list (refer to “Test Pattern
Drop–down Pick List” – see page 3-91).
10
Click OK to display the status report window followed by a Directions pop-up window.
11
Follow the cable connection directions as they are displayed. When the calibration process is
completed, results will be displayed in the status report window.
12
Click on the Save Results or Dismiss button, as desired, to close the status report window.
Exception Handling
In the event of a failure, the calibration procedure displays a FAIL
message in the Status Report window and provides information in the
Description field. Recheck the test setup and connection and re–run the
test. If the tests fail again, note specifics about the failure, and refer to
Chapter 6, Troubleshooting.
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Bay Level Offset Calibration
68P09258A31–A
All Cal/Audit Test
The Tests menu item, All Cal/Audit, performs the TX BLO Calibration
and Audit test for a XCVR(s). All measurements are made through the
appropriate TX output connector using the calibrated TX cable setup.
NOTE
If the TX calibration portion of the test passes, the BLO data is
automatically downloaded to the BBX(s) before the audit portion
of the test is run.
Prerequisites
Before running this test, ensure that the following have been done:
CSM–1, GLIs, BBXs have correct code and data loads.
Primary CSM and MGLI are INS.
All BBXs are OOS_RAM.
Test equipment and test cables are calibrated and connected for TX
BLO calibration.
S LMF is logged into the BTS.
Follow the procedure in Table 3-40 to perform the All Cal/Audit test.
WARNING
Before installing any test equipment directly to any TX OUT
connector, first verify there are no CDMA BBX channels
keyed. Failure to do so can result in serious personal injury
and/or equipment damage.
Table 3-40: All Cal/Audit Test
n Step
Action
Select the BBX(s) to be tested.
NOTE
If STANDARD, CDFPilot, or CDF is selected for the TEST PATTERN, then at least one MCC
must be also selected.
From the Tests menu, select All Cal/Audit.
Select the appropriate carrier(s) displayed in the Channels/Carrier pick list.
Press and hold the  or  key to select multiple items.
Type the appropriate channel number in the Carrier n Channels box.
If at least one MCC was selected in Step1 select the appropriate transfer rate (1 = 9600, 3 = 9600
1X) from the drop–down list in the Rate Set box.
NOTE
The rate selection of 3 is only available if 1X cards are selected for the test.
Select Verify BLO or Single–sided BLO.
NOTE
Single–sided BLO is only used when checking non–redundant transceivers.
In the Test Pattern box, select the test pattern from the drop–down list (refer to “Test Pattern
Drop–down Pick List” – see page 3-91).
Click on OK.
. . . continued on next page
Oct 2003
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Bay Level Offset Calibration
68P09258A31–A
Table 3-40: All Cal/Audit Test
n Step
10
Action
Follow the cable connection directions as they are displayed. A status report window displays the
test results.
Click on Save Results or Dismiss to close the status report window.
Create CAL File
The Create Cal File function gets the BLO data from BBXs and
creates/updates the CAL file for the BTS. If a CAL file does not exist, a
new one is created. If a CAL file already exists, it is updated. After a
BTS has been fully optimized, a copy of the CAL file must exist so it
can be transferred to the CBSC. If TX calibration has been successfully
performed for all BBXs and BLO data has been downloaded, a CAL file
exists. Note the following:
S The Create Cal File function only applies to selected (highlighted)
BBXs.
WARNING
The user is not encouraged to edit the CAL file as this action can
cause interface problems between the BTS and the LMF. To
manually edit the CAL file, you must first logout of the BTS. If
you manually edit the CAL file and then use the Create Cal File
function, the edited information is lost.
Prerequisites
Before running this test, the following should be done:
S LMF is logged into the BTS.
S BBXs are OOS_RAM with BLO downloaded.
Creating a CAL File
Table 3-41: Create CAL File
n Step
Action
Select the applicable BBXs.
NOTE
The CAL file is only updated for the selected BBXs.
Click on the Device menu.
Click on the Create Cal File menu item. A status report
window displays the results of the action.
Click OK to close the status report window.
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RFDS Set–up and Calibration
68P09258A31–A
RFDS Set–up and Calibration
RFDS Description
NOTE
The RFDS is not available for the –48 V BTS at the time of this
publication.
The optional RFDS performs RF tests of the site from the CBSC or from
an LMF. The RFDS consists of the following elements:
S Antenna Select Unit (ASU)
S Fixed Wireless Terminal Interface Card (FWTIC)
S Subscriber Unit Assembly (SUA)
For complete information regarding the RFDS, refer to the CDMA
CDMA RFDS Hardware Installation; 68P64113A93, CDMA RFDS
User’s Guide; 68P64114A51, and the LMF Help function on–line
documentation.
RFDS Parameter Settings
The bts–#.cdf file includes RFDS parameter settings that must match the
installed RFDS equipment. The paragraphs below describe the editable
parameters and their defaults. Table 3-42 explains how to edit the
parameter settings.
S RfdsEquip – valid inputs are 0 through 2.
0 = (default) RFDS is not equipped
1 = Non-Cobra/Patzer box RFDS
2 = Cobra RFDS
S TsuEquip – valid inputs are 0 or 1
0 = (default) TSU not equipped
1 = TSU is equipped in the system
S MC1....4 – valid inputs are 0 or 1
0 = (default) Not equipped
1 = Multicouplers equipped in RFDS system
(9600 system RFDS only)
S Asu1/2Equip – valid inputs are 0 or 1
0 = (default) Not equipped
1 = Equipped
S TestOrigDN – valid inputs are ’’’ (default) or a numerical string up to
15 characters. (This is the phone number the RFDS dials when
originating a call. A dummy number needs to be set up by the switch,
and is to be used in this field.)
NOTE
Oct 2003
Any text editor may be used to open the bts–#.cdf file to verify,
view, or modify data. Because the bts–#.cdf file is generated on
a Unix system, a more sophisticated editor, such as MicroSoft
WordPad, will display file content in a more easily–read format
than many simple text editors.
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RFDS Set–up and Calibration
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Checking and Setting RFDS Parameters
Follow the procedure in Table 3-42 to review and/or edit RFDS
parameters.
Table 3-42: RFDS Parameter Settings
Step
Action
Important! Log out of the BTS prior to performing this procedure.
Using a text editor, verify the following fields are set correctly in the bts–#.cdf file:
EXAMPLE:
Asu1Equip = 1
Asu2Equip = 0 (1 if system is non-duplexed)
Mc1Equip = 0
Mc2Equip = 0
Mc3Equip = 0
Mc4Equip = 0
RfdsEquip = 2
TestOrigDN = ’123456789’
TsuEquip = 1
NOTE
The above is an example of entries extracted from the bts–#.cdf file that should have been generated
by the OMC–R and copied to the LMF. These fields will have been set by the OMC–R if the
RFDSPARM database is modified for the RFDS.
Save changes and/or quit the editor.
Log into the BTS using an LMF GUI session (refer to Table 3-6).
If no changes were made to the bts–#.cdf file fields listed in Step 2, proceed to Step 6. If changes were
made, continue with Step 8.
NOTE
To make certain the complete data download is accepted, the MGLI should be OOS_RAM (yellow)
when RFDS parameter settings are downloaded.
6a
6b
6c
6d
6e
6f
6g
6h
When changes are made to RFDS parameters in the bts–#.cdf file, data must be downloaded to the
MGLI by performing the following:
– To be sure it does not take control when the MGLI is disabled, manually disable the redundant
GLI card by unseating it from the backplane connectors and sliding it partially out of the shelf
slot.
– Click on the MGLI.
– Click on Device in the BTS menu bar, and select Disable from the pull–down menu. A status
report window shows the status of the operation.
– When the operation is complete, click OK to close the status report window.
– Click on the MGLI (now OOS_RAM (yellow)).
– Click on Device in the BTS menu bar, and select Download > Data from the pull–down menus
(selected devices do not change color when data is downloaded). A status report window shows
the status of the download.
– Click OK to close the status report window.
– Click on the MGLI.
. . . continued on next page
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Table 3-42: RFDS Parameter Settings
Step
Action
– Click on Device in the BTS menu bar, and select Enable from the pull–down menu. A status
report window shows the status of the operation.
– When the operation is complete, click OK to close the status report window.
6i
6jj
! CAUTION
When the MGLI changes to INS_ACT, data will automatically be downloaded to the RFDS. During
this process, the RFDS LED will slowly begin flashing red and green for approximately 2–3 minutes.
DO NOT attempt to perform any functions with the RFDS until the LED remains steady green.
6k
– Re–seat the redundant GLI card into the backplane connectors and lock it in place with the ejector
tabs.
– Once the redundant GLI initializes, download data to it by selecting the card and, in the BTS
menu bar, clicking Device and selecting Download > Data from the pull–down menus.
6l
Any MCCs that were INS_ACT when the MGLI was disabled must be disabled, downloaded with
data, and re–enabled as follows:
– Select the devices to be reset by clicking on them or using Select from the BTS menu bar and
clicking on MCCs in the pull–down menu.
– In the BTS menu bar, click on Device and select Disable from the pull–down menu. A status
report window shows the status of the operation.
– Click OK to close the status report window.
– Repeat Step 7a to select the MCCs.
– Click on Device in the BTS menu bar and select Download > Data from the pull–down menu.
(Selected devices do not change colot when data is downoaded.)
– A status report window shows the status of the download.
– Click on OK to close the status report window.
– When data download is complete, enable the MCCs by following the procedure in Table 3-17.
7a
7b
7c
7d
7e
7f
7g
Click on the RFDS tab.
Status the RFDS TSU by performing the following:
9a
9b
– Click on the SUA to select it.
– Click on TSU in the BTS menu bar, and select Status TSU from the pull–down menu. A status
report shows the software version number for the TSIC and SUA.
– Click OK to close the status report window.
9c
NOTE
If the LMF displays an error message, check the following:
Oct 2003
Ensure AMR cable is correctly connected from the BTS to the RFDS.
Verify RFDS has power.
Verify RFDS status LED is green.
Verify entries in RFDS fields of the bts–#.cdf file are correct (refer to Step 2).
Status the MGLI and ensure it is communicating (by Ethernet) with the LMF, and is in the proper
state (INS_ACT (bright green)).
1X SCt 4812T BTS Optimization/ATP
3-101
RFDS Set–up and Calibration
68P09258A31–A
RFDS TSU NAM Programming
The Number Assignment Module (NAM) information needs to be
programmed into the TSU before it can receive and process test calls, or
be used for any type of RFDS test. The RFDS TSU NAM must be
programmed with the appropriate system parameters and phone number
during hardware installation. The TSU phone and TSU MSI must be
recorded for each BTS used for OMC–R RFDS software configuration.
NOTE
The user will only need to program the NAM for the initial
install of the RFDS.
Explanation of Parameters used when Programming the TSU NAM
Table 3-43 defines the parameters used when editing the tsu.nam file.
Table 3-43: Definition of Parameters
Access_Overload_Code
Slot_Index
System ID
Network ID
These parameters are obtained from the switch.
Primary_Channel_A
Primary_Channel_B
Secondary_Channel_A
Secondary_Channel B
These parameters are the channels used in operation of the system.
Lock_Code
Security_Code
Service_Level
Station_Class_Mark
Do not change.
IMSI_11_12
IMSI_MCC
These fields are obtained at the OMC using the following command:
OMC000>disp bts–# imsi
If the fields are blank, replace the IMSI fields in the NAM file to 0,
otherwise use the values displayed by the OMC.
MIN Phone Number
This field is the phone number assigned to the mobile. The ESN and
MIN should be entered into the switch as well.
NOTE
This field is different from the TODN field in the bts–#.cdf file. The
MIN is the phone number of the RFDS subscriber, and the TODN is
the number the subscriber calls.
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RFDS Set–up and Calibration
68P09258A31–A
Valid NAM Ranges
Table 3-44 provides the valid NAM field ranges. If any of the fields are
missing or out of range, the RFDS errors out.
Table 3-44: Valid NAM Field Ranges
Valid Range
Minimum
Maximum
15
Slot_Index
System ID
32767
Network ID
32767
Primary_Channel_A
25
1175
Primary_Channel_B
25
1175
Secondary_Channel_A
25
1175
Secondary_Channel_B
25
1175
Lock_Code
999
Security_Code
999999
Service_Level
Station_Class_Mark
255
IMSI_11_12
99
IMSI_MCC
999
N/A
N/A
NAM Field Name
Access_Overload_Code
MIN Phone Number
Oct 2003
1X SCt 4812T BTS Optimization/ATP
3-103
RFDS Set–up and Calibration
68P09258A31–A
Set Antenna Map Data
The antenna map data must be entered manually if an RFDS is installed.
Antenna map data does not need to be entered if an RFDS is not
installed. The antenna map data is only used for RFDS tests and is
required if an RFDS is installed.
Prerequisite
S Logged into the BTS
Follow the procedure in Table 3-45 to set antenna map data for the
RFDS.
Table 3-45: Set Antenna Map Data
Step
Action
Click on Util in the BTS menu bar, and select Edit > Antenna Map... from the pull–down menus. A
tabbed data entry pop–up window will appear.
In the data entry pop–up window, click on the TX Antenna Map or RX Antenna Map tab to select
the antenna map to be edited.
Locate the carrier and sector number for which data is to be entered or edited, and click in the column
where entry or editing is needed.
Enter/edit Antenna # and Antenna Label column data as needed for each carrier.
NOTE
Refer to the CDMA Help > Utility Menu > Edit–Antenna Map... section of LMF Help function
on–line documentation for antenna map examples.
For each tab with changes, click on the Save button to save displayed values.
Click on the Dismiss button to close the window.
NOTE
S Values entered or changed after the Save button was used will be lost when the window is
dismissed.
S Entered values will be used by the LMF as soon as they are saved. It is not necessary to log out and
log back into the LMF for changes to take effect.
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RFDS Set–up and Calibration
68P09258A31–A
Set RFDS Configuration Data
If an RFDS is installed, the RFDS configuration data must be manually
entered.
Prerequisite
S LMF is logged into the BTS
The entered antenna# index numbers must correspond to the
antenna# index numbers used in the antenna maps.
NOTE
Follow the procedure in Table 3-46 to set the RFDS Configuration Data.
Table 3-46: Set RFDS Configuration Data
Step
Action
Click on Util in the BTS menu bar, and select Edit > RFDS Configuration... from the pull–down
menus. A tabbed data entry pop–up window will appear.
In the data entry pop–up window, click on the TX RFDS Configuration or RX RFDS Configuration
tab, as required.
To add a new antenna number, perform the following:
3a
– Click on the Add Row button.
3b
– Click in the Antenna #, Cal Antenna, Scap Antenna, or Populate [Y/N] columns, as required.
3c
– Enter the desired data.
To edit existing values, click in the data box to be changed and change the value.
NOTE
Refer to the CDMA Help > Utility Menu > Edit–RFDS Configuration... section of LMF Help
function on–line documentation for RFDS configuration data examples.
To delete a row, click on the row and then click on the Delete Row button.
For each tab with changes, click on the Save button to save displayed values.
Click on the Dismiss button to close the window.
NOTE
S Values entered or changed after the Save button was used will be lost when the window is
dismissed.
S Entered values will be used by the LMF as soon as they are saved. It is not necessary to log out and
log back into the LMF for changes to take effect.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
3-105
RFDS Set–up and Calibration
68P09258A31–A
RFDS Calibration
The RFDS Calibration option is used to calibrate the RFDS TX and RX
paths.
TX Path Calibration – For a TX antenna path calibration the BTS
XCVR is keyed at a pre–determined power level and the BTS power
output level is measured by the RFDS. The power level is then measured
at the TX antenna directional coupler by the power measuring test
equipment item being used (power meter or analyzer). The difference
(offset) between the power level at the RFDS and the power level at the
TX antenna directional coupler is used as the TX RFDS calibration
offset value.
RX Path Calibration – For an RX antenna path calibration the RFDS is
keyed at a pre–determined power level and the power input level is
measured by the BTS BBX. A CDMA signal at the same power level
measured by the BTS BBX is then injected at the RX antenna directional
coupler by the communications system analyzer. The difference (offset)
between the RFDS–keyed power level and power level measured at the
BTS BBX is the RFDS RX calibration offset value.
RFDS calibration and the CAL file – The TX and RX RFDS
calibration offset values are written to the CAL file in the slot[385]
Block.
TSIC channel frequency – For each RFDS TSIC, the channel
frequency is determined at the lower third and upper third of the
appropriate band using the frequencies listed in Table 3-47.
Table 3-47: RFDS TSIC Calibration Channel Frequencies
WARNING
System
Channel Calibration Points
800 MHz (A and B)
341 and 682
1.9 GHz
408 and 791
Before installing any test equipment directly to any TX OUT
connector, verify that there are no CDMA channels keyed.
Failure to do so can result in serious personal injury and/or
equipment damage.
Prerequisites
S Test equipment has been selected.
S Test equipment and test cables have been calibrated.
S TX calibration has been performed and BLO data has been
downloaded to the BBXs.
S Test equipment and test cables are connected for TX calibration.
S Antenna map data has been entered for the site.
S BBXs are OOS–RAM.
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RFDS Set–up and Calibration
68P09258A31–A
RFDS Calibration Procedure
Follow the procedure in Table 3-48 to perform RFDS calibration.
Table 3-48: RFDS Calibration Procedure
Step
Action
In the LMF, select the CDMA BTS–xxx tab.
If the BTS Control button is not selected (no black dot showing), click on the B button in the BTS
menu bar to select it.
Select the BBX(s) assigned to the carrier(s) and sector(s) which will be used in RFDS calibration
(refer to Table 1-6 for BBX carrier and sector assignments).
Click on RFDS in the BTS menu bar, and select RFDS Calibration... from the pull–down menu. An
RFDS Calibration set–up window will be displayed.
In the Tests to Perform box, select TX Calibration or RX Calibration, as required
Enter the appropriate channel number(s) (refer to Table 3-47) in the Channel Field box. To enter more
than one channel number, use the following methods:
– Separate non–sequential channel numbers with a comma and no spaces;
for example: 247,585,742.
– Enter a range of sequential channels by typing the first and last channel numbers in the range
separated by a dash and no spaces;
for example: 385–395.
If the frame is equipped with TX combiners, click in the Has Combiners checkbox.
Select the appropriate carrier(s) and sector(s) from the Carriers pick list (hold down the Shift or Ctrl
key while clicking on pick list items to select multiple carrier(s)–sector(s)).
Select the appropriate Rx branch (Main, Diversity or Both) in the drop–down list if performing RX
calibration.
10
Click on the OK button. A status report window is displayed, followed by a Directions pop-up
window.
11
Follow the cable connection directions as they are displayed.
12
When the test is completed, test results are displayed in the status report window.
13
Click on the OK button to close the status report window.
14
Click on the Frame tab.
15
Select the MGLI by clicking on it.
16
Download updated RFDS offset data to the MGLI (see Step 6 in Table 3-42).
Oct 2003
1X SCt 4812T BTS Optimization/ATP
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RFDS Set–up and Calibration
68P09258A31–A
Program TSU NAM
The NAM must be programmed before it can receive and process test
calls, or be used for any type of RFDS test.
Prerequisites
Ensure the following prerequisites have been met before proceeding:
S MGLI is INS.
S TSU is powered up and has a code load.
Program NAM Procedure
Follow the procedure in Table 3-49 to program the TSU NAM.
Table 3-49: Program the TSU NAM
Step
Action
Select the RFDS tab.
Select the SUA (Cobra RFDS) or TSU (GLI based RFDS).
Click on TSU in the BTS menu bar, and select Program TSU NAM from the pull–down menu. A
NAM programming window will appear.
Enter the appropriate information in the boxes (see Table 3-43 and Table 3-44).
Click on the OK button to display the status report.
Click on the OK button to close the status report window.
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Oct 2003
BTS Redundancy/Alarm Testing
68P09258A31–A
BTS Redundancy/Alarm Testing
Objective
This section tests the redundancy options that could be included in the
cell site. These tests verify, under a fault condition, that all modules
equipped with redundancy switch operations to their redundant partner
and resume operation. An example would be to pull the currently active
CSM and verify the standby CSM takes over distribution of the CDMA
reference signal.
Redundancy covers many BTS modules. Confirm the redundant options
included in the BTS, and proceed as required. If the BTS has only basic
power supply redundancy, the tests and procedures detailed in the
following tables should be bypassed.
Table 3-52. Miscellaneous Alarm Tests (BTS Frame)
Table 3-53. BBX Redundancy Tests (BTS Frame)
Table 3-54. CSM, GPS, & LFR/HSO Redundancy Alarm Tests
Table 3-55. PA Redundancy Test
Table 3-56. MGLI/GLI Redundancy Test
During redundancy verification of the test, alarms reported by the master
GLI (displayed via the alarm monitor) will also be verified/noted.
Test Equipment
The following pieces of test equipment are required to perform this test:
S LMF
S Communications Test Set
Redundancy/Alarm Test
Perform each of the following tests to verify BTS redundancy and to
confirm all alarms are received and reported by the BTS equipment. The
procedures should be performed on the following modules/boards:
Oct 2003
Power supply/converter modules in all frames
Distribution shelf modules in the BTS frame
C–CCP shelf modules in the BTS frame (except MCCs)
PA modules in the BTS frame
AMR Customer defined input/output tests
1X SCt 4812T BTS Optimization/ATP
3-109
BTS Redundancy/Alarm Testing
68P09258A31–A
Test Equipment Setup
Follow the procedure in Table 3-50 to set up test equipment:
NOTE
All alarm tests are performed using TX antenna 1
Table 3-50: Test Equipment Setup for Redundancy/Alarm Tests
Step
Action
Interface the LMF computer to the BTS LAN A connector on
the BTS frame (refer to Table 3-5, page 3-17).
Login to the BTS.
Set up test equipment for TX Calibration at TXOUT1 (see
Figure 3-16).
NOTE
If site is not equipped for redundancy, remove all GLI and
BBX boards installed in any redundant slot positions at this
time.
Display the alarm monitor by selecting Util>Alarm Monitor.
Unequip all customer defined AMR alarms reported via the
AMR Alarm connector (A & B) by clicking on MGLI, then
selecting Device>Set Alarm Relays>Unequipped.
NOTE
During configuration of MGLI alarm reporting, spurious
alarms may report. Allow the BTS to stabilize for 10 seconds.
If any alarms are actively being reported after the BTS has
stabilized, determine the cause before proceeding further.
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Oct 2003
BTS Redundancy/Alarm Testing
68P09258A31–A
Power Supply Redundancy
Follow the steps in Table 3-51 to verify redundancy of the power supply
modules. Alarms reported by the master GLI (displayed via the alarm
monitor) are also verified.
Table 3-51: Power Supply/Converter Redundancy (BTS Frame)
Step
Action
Select the MGLI (highlight) and from the pulldown menu select:
Device>BBX/MAWI>Set Redundant Sector>Carrier–#–1–1
Device>BBX/MAWI>Set Pilot Only>Carrier–#–1-1
Device>BBX/MAWI>Set Pilot Gain>Carrier–#-1-1 and Pilot Gain = 262
Select (highlight) BBX–1 and from the pulldown menu select Device>BBX/MAWI>Key.
Set XCVR gain to 40 and enter the correct XCVR channel number.
Remove PS–1 from the power distribution shelf (see Figure 3-27).
– Observe that an alarm message is reported via the MGLI as displayed on the alarm monitor.
– Verify no other modules went OOS.
Re-install PS–1.
Observe the alarm clears on the alarm monitor.
Repeat steps 4 and 5 for PS–2 and PS–3.
NOTE
For +27 V systems, skip to step 7 through step 10.
On –48 V systems, remove PS–4 (see Figure 3-28).
– Observe that an alarm message is reported via the MGLI as displayed on the alarm monitor.
– Verify no other modules went OOS.
Re-install PS–4.
Observe the alarm clears on the alarm monitor.
Repeat steps 7 and 8 for PS–5 through PS–9.
10
Verify that all PWR/ALM LEDs are GREEN.
11
Select BBX-1 and Device>BBX/MAWI>Dekey
Oct 2003
1X SCt 4812T BTS Optimization/ATP
3-111
BTS Redundancy/Alarm Testing
68P09258A31–A
MPC/EMPC–1
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
Á
Á Á
Á
MPC/EMPC–2
Switch
BBX–12
BBX–11
BBX–10
BBX–9
BBX–8
BBX–7
MCC–12
MCC–11
MCC–10
MCC–9
MCC–8
MCC–7
GLI2–2
AMR–2
38 mm Filler Panel
CCD–2
CSM–2
CCD–1
CIO
BBX–6
BBX–R
BBX–5
BBX–4
BBX–3
BBX–2
BBX2–1
MCC–6
MCC–5
MCC–4
MCC–3
MCC–2
GLI2–1
MCC–1
AMR–1
PS–3
PS–2
PS–1
CSM–1
HSO/LFR
NOTE: MCCs may be
MCC8Es, MCC24s, or
MCC–1Xs. BBXs may
be BBX2s or BBX–1Xs.
GLIs may be GLI2s or
GLI3s.
FW00295
Figure 3-28: –48 V BTS Power Conversion Shelf
FAN
MODULE
REAR
FRONT
FAN
MODULE
REAR
PWR/ALM
PWR/ALM
FRONT
1A 30
1B
1C 30
1D
2A 30
PS–9
PS–8
PS–7
PS–6
PS–5
PS–4
L 2C
A 3A
AMR
19 mm Filler Panel
Figure 3-27: SC 4812T C–CCP Shelf
30
2B
2D
30
3B
3C 30
3D
4A 30
4B
4C 30
4D
FW00501
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1X SCt 4812T BTS Optimization/ATP
Oct 2003
BTS Redundancy/Alarm Testing
68P09258A31–A
Miscellaneous Alarm/Redundancy Tests
Follow the steps in Table 3-52 to verify alarms reported by the master
GLI are displayed via the alarm monitor if a BTS frame module failure
occurs.
Table 3-52: Miscellaneous Alarm Tests
Step
Action
Select Util>Alarm Monitor to display the alarm monitor window.
Perform the following to verify fan module alarms:
• Unseat a fan module (see Figure 3-29 or Figure 3-30).
• Observe an alarm message was reported via the MGLI (as displayed on the alarm monitor).
• Replace fan module and verify the alarm monitor reports that the alarm clears.
• Repeat for all other fan modules in the BTS frame.
NOTE
Follow Step 3 for Starter Frames and Step 4 for Expansion Frames.
Starter Frames Only: Perform the following to verify MPC module alarms.
• Unseat MPC modules (see Figure 3-27) one at a time.
• Observe that an alarm message was reported via the MGLI as displayed on the alarm monitor.
• Replace the MPC modules and verify the alarm monitor reports the alarm clears.
Expansion Frames Only: Perform the following to verify EMPC module alarms.
• Unseat EMPC modules (see Figure 3-27) one at a time
• Observe that an alarm message was reported via the MGLI as displayed on the alarm monitor.
• Replace the EMPC modules and verify the alarm monitor reports that the alarm clears.
If equipped with AMR redundancy, perform the following to verify AMR module redundancy/alarms.
• Unseat AMR 2 (see Figure 3-27).
• Observe that an alarm message is reported via the MGLI (as displayed on the alarm monitor).
• Repeat Steps 1 through 3 and/or 4.
• Replace the AMR module and verify the alarm monitor reports that the alarm clears.
• Unseat AMR 1 and observe an alarm message was reported via the MGLI (as displayed on the alarm
monitor).
• Replace the AMR module and verify the LMF reports the alarm has cleared.
NOTE
All PWR/ALM LEDs should be GREEN at the completion of this test.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
3-113
BTS Redundancy/Alarm Testing
68P09258A31–A
Figure 3-29: +27 V BTS C-CCP Fan Modules
LATCHES
FAN
MODULE
FAN
MODULE
REAR
REAR
FRONT
PWR/ALM
FAN
MODULE
REAR
PWR/ALM
FRONT
FRONT
PWR/ALM
FAN MODULES
FW00130
Figure 3-30: –48 V BTS C-CCP and Power Conversion Shelf Fan Modules
LATCHES
FAN
MODULE
REAR
FRONT
FAN
MODULE
REAR
PWR/ALM
FRONT
FAN
MODULE
REAR
PWR/ALM
FRONT
PWR/ALM
FAN MODULES
LATCHES
FAN
MODULE
REAR
FRONT
FAN
MODULE
REAR
PWR/ALM
FRONT
PWR/ALM
FW00489
FAN MODULES
BBX Redundancy
Follow the steps in Table 3-53 to verify redundancy of the BBXs in the
C–CCP shelf. Alarms reported by the master GLI (displayed via the
alarm monitor) are also verified. This test can be repeated for additional
sectors at the customer’s discretion.
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BTS Redundancy/Alarm Testing
68P09258A31–A
Table 3-53: BBX Redundancy Alarms
Step
Action
n WARNING
Any BBXs enabled will immediately key-up. Before enabling any BBX, always verify that the TX
output assigned to the BBX is terminated into a 50 W non-radiating RF load! Failure to do so could
result in serious personal injury and/or damage to the equipment.
Enable the primary, then the redundant BBX assigned to ANT 1 by selecting the BBX and
Device>BBX/MAWI>Key.
Observe that primary BBXs key up, and a carrier is present at each respective frequency.
Remove the primary BBX.
Observe a carrier is still present.
The Redundant BBX is now the active BBX for Antenna 1.
Replace the primary BBX and reload the BBX with code and data.
Re-enable the primary BBX assigned to ANT 1 and observe that a carrier is present at each respective
frequency.
Remove the redundant BBX and observe a carrier is still present.
The Primary BBX is now the active BBX for ANT 1.
Replace the redundant BBX and reload the BBX with code and data.
10
Re-enable the redundant BBX assigned to ANT 1 and observe that a carrier is present at each
respective frequency:
11
De-key the Xcvr by selecting Device>BBX/MAWI>Dekey.
12
Repeat Steps 1 through 11 for additional BBXs/antennas, if equipped.
Oct 2003
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BTS Redundancy/Alarm Testing
68P09258A31–A
CSM, GPS, & LFR/HSO Redundancy/Alarm Tests
Follow the procedure in Table 3-54 to verify the manual redundancy of
the CSM, GPS, and LFR/HSO boards. Verification of alarms reported is
also covered.
NOTE
DO NOT perform the procedure in Table 3-54, unless the site is
configured with a LORAN–C or HSO timebase as a backup for
the GPS.
Table 3-54: CSM, GPS, & LFR/HSO, Redundancy/Alarm Tests
Step
Action
n WARNING
Any BBXs enabled will immediately key-up. Before enabling any BBX, always verify that the TX
output assigned to the BBX is terminated into a 50 W non-radiating RF load! Failure to do so could
result in serious personal injury and/or damage to the equipment.
Enable the primary, then the redundant BBXs assigned to ANT 1 by selecting the BBX and
Device>BBX/MAWI>Key.
Disconnect the GPS antenna cable, located on top of the BTS frame.
This forces the LORAN–C LFR or HSO board timebase to become the CDMA timing source.
Observe a CDMA timing reference alarm and source change is reported by the alarm monitor.
Allow the LFR/HSO to become the active timing source.
S Verify the BBXs remain keyed and INS.
S Verify no other modules went OOS due to the transfer to LFR/HSO reference.
S Observe the PWR/ALM LEDs on the CSM 1 front panel are steady GREEN.
Reconnect the GPS antenna cable.
Allow the GPS to become the active timing source.
S Verify the BBXs remain keyed and INS.
S Verify no other modules went OOS due to the transfer back to the GPS reference.
S Observe the PWR/ALM LEDs on CSM 1 are steady GREEN.
Disable CSM 1 and enable CSM 2.
S Various CSM source and clock alarms are now reported and the site comes down.
S Alarms clear when the site comes back up.
Allow the CSM 2 board to go INS_ACT.
S Verify the BBXs are dekeyed and OOS, and the MCCs are OOS_RAM.
S Verify no other modules went OOS due to the transfer to CSM 2 reference.
S Observe the PWR/ALM LEDs on CSM 2 front panels are steady GREEN.
NOTE
It can take up to 20 minutes for the CSM to re-establish the GPS link and go INS. MCCs go
OOS_RAM.
Key BBXs 1 and R and observe a carrier is present.
10
Repeat Steps 2 through 6 to verify CSM source redundancy with CSM 2.
. . . continued on next page
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BTS Redundancy/Alarm Testing
68P09258A31–A
Table 3-54: CSM, GPS, & LFR/HSO, Redundancy/Alarm Tests
Step
Action
* IMPORTANT
DO NOT ENABLE the redundant CSM.
11
Disable CSM 2 and enable CSM 1.
S Various CSM Source and Clock alarms are reported and the site comes down.
S Alarms clear when the site comes back up.
12
De-key the Xcvr by selecting Device>BBX/MAWI>Dekey.
13
Allow the CSM 1 board to go INS_ACT.
S Verify the BBXs are de-keyed and OOS.
S Verify no other modules went OOS due to the transfer to CSM 1 reference.
S Observe PWR/ALM LEDs on the CSM 1 front panels are steady GREEN.
14
Oct 2003
Disable the primary and redundant BBXs.
1X SCt 4812T BTS Optimization/ATP
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BTS Redundancy/Alarm Testing
68P09258A31–A
Power Amplifier (PA) Redundancy Test
Follow the procedure in Table 3-55 to verify redundancy of the Power
Amplifiers (PA).
WARNING
First verify there are no BBX channels keyed BEFORE
moving the antenna connection. Failure to do so can result in
serious personal injury and/or equipment damage.
Table 3-55: Power Amplifier Redundancy Test
Step
Action
From the pulldown menu select:
Device>BBX/MAWI>Set Redundant Sector>Carrier–#–1–1
Device>BBX/MAWI>Set Pilot Only>Carrier–#–1-1
Device>BBX/MAWI>Set Pilot Gain> Carrier–#-1-1 and Pilot Gain = 262
Key-up the BBX assigned to the PAs associated with the sector under test (gain = 40).
Adjust the communications test set spectrum analyzer, as required, to observe the overall carrier
amplitude and IM Shelf and note for reference. These figures will be required later.
NOTE
See Figure 3-19 for test equipment setup, if required.
Push-in and release the breaker supplying the 1st PA of the pair.
NOTE
After power is removed, IM suppression takes a few seconds to settle out while compensating for the
removal of the 1st PA. The overall gain decreases by approximately 6 dB. The process must be
complete before proceeding.
Verify:
• The other PA module did not go OOS due to the loss of the PA.
• The overall carrier amplitude is reduced by approximately 6 dB and IM suppression on the analyzer
display remains basically unchanged.
• PA fault message is reported via the MGLI and displayed on the alarm monitor.
Re-apply power to the PA module and observe the alarm has cleared on the alarm monitor.
NOTE
All PWR/ALM LEDs should be GREEN at completion of test.
Repeat Steps 4 through 6 to verify the 2nd PA of the pair.
De-key the BBX.
n WARNING
First verify there are no BBX channels keyed when moving the antenna connection. Failure to do so
can result in serious personal injury and/or equipment damage.
3-118
Repeat Steps 1 through 8 to verify PAs assigned to sectors 2 and 3 (if equipped). Move the test cable
on top of the BTS to TX OUT 2 and TX OUT 3 antenna connectors as required.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
BTS Redundancy/Alarm Testing
68P09258A31–A
MGLI/GLI Redundancy Test
CAUTION
This test can only be performed when the MM path is established
by the MM (not just with LAPD link connected). Attempting to
force the GLIs to “hot swap” under alarm monitor control, when
isolated from the MM, causes MGLIs to hang up.
Table 3-56: MGLI/GLI Redundancy Test (with MM Connection Established)
Step
Action
NOTE
S This test assumes the alarm monitor is NOT connected to the BTS and the T1/E1 span is connected
and communication is established with the MM.
S BOTH GLIs must be INS before continuing.
Verify the BBXs are enabled and a CDMA carrier is present.
Identify the primary and redundant MGLI pairs.
Pull the MGLI that is currently INS–ACT and has cage control.
Observe the BBX remains GREEN, and the redundant MGLI is now active.
Verify no other modules go OOS due to the transfer of control to the redundant module.
Verify that the BBXs are enabled and a CDMA carrier is present.
Reinstall the MGLI and have the OMCR/CBSC place it back in-service.
Repeat Steps 1 through 7 to verify the other MGLI/GLI board.
Oct 2003
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Alarms Testing
68P09258A31–A
Alarms Testing
Alarm Verification
ALARM connectors provide Customer Defined Alarm Inputs and
Outputs. The customer can connect BTS site alarm input sensors and
output devices to the BTS, thus providing alarm reporting of active
sensors as well controlling output devices.
The SC 4812T is capable of concurrently monitoring 36 input signals
coming into the BTS. These inputs are divided between 2 Alarm
connectors marked ‘ALARM A’ and ‘ALARM B’ located at the top of
the frame (see Figure 3-31). The ALARM A connector is always
functional; ALARM B is functional when an AMR module is equipped
in the AMR 2 slot in the distribution shelf. ALARM A port monitors
input numbers 1 through 18, while ALARM B port monitors input
numbers 19 through 36 (see Figure 3-32). State transitions on these input
lines are reported to the LMF and OMCR as MGLI Input Relay alarms.
ALARM A and ALARM B connectors each provide 18 inputs and 8
outputs. If both A and B are functional, 36 inputs and 16 outputs are
available. They may be configured as redundant. The configuration is set
by the CBSC.
Alarm Reporting Display
The Alarm Monitor window can be displayed to list alarms that occur
after the window is displayed. To access the Alarm Monitor window,
select Util>Alarm Monitor.
The following buttons are included:
S The Options button allows for a severity level (Warning, Minor, and
Major) selection. The default is all levels. To change the level of
alarms reported click on the Options button and highlight the desired
alarm level(s). To select multiple levels press the  key (for
individual selections) or  key (for a range of selections) while
clicking on the desired levels.
S The Pause button pauses/stops the display of alarms. When the Pause
button is clicked the name of the button changes to Continue. When
the Continue button is clicked, the display of alarms continues.
Alarms that occur between the time the Pause button is clicked and
the Continue button is clicked are not displayed.
S The Clear button clears the Alarm Monitor display. New alarms that
occur after the Clear button is clicked are displayed.
S The Dismiss button dismisses/closes the Alarm Monitor display.
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Alarms Testing
68P09258A31–A
Figure 3-31: Alarm Connector Location and Connector Pin Numbering
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
59
59
60
60
ti-CDMA-WP-00041-v01-ildoc-ftw
Purpose
The following procedures verify the customer defined alarms and relay
contacts are functioning properly. These tests are performed on all AMR
alarms/relays in a sequential manner until all have been verified. Perform
these procedures periodically to ensure the external alarms are reported
properly. Following these procedures ensures continued peak system
performance.
Study the site engineering documents and perform the following tests
only after first verifying that the AMR cabling configuration required to
interconnect the BTS frame with external alarm sensors and/or relays
meet requirements called out in the SC 4812T Series BTS Installation
Manual.
NOTE
Motorola highly recommends that you read and understand this
procedure in its entirety before starting this procedure.
Test Equipment
The following test equipment is required to perform these tests:
S LMF
S Alarms Test Box (CGDSCMIS00014) –optional
NOTE
Abbreviations used in the following figures and tables are
defined as:
S NC = normally closed
S NO = normally open
S COM or C = common
S CDO = Customer Defined (Relay) Output
S CDI = Customer Defined (Alarm) Input
Oct 2003
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Alarms Testing
68P09258A31–A
Figure 3-32: AMR Connector Pin Numbering
A CDI 18
...
A CDI 1
Returns
60
26
60
26
59
25
59
25
ALARM A
(AMR 1)
Returns
ALARM B
(AMR 2)
B CDI 36
...
B CDI 19
FW00302
NOTE
The preferred method to verify alarms is to follow the Alarms
Test Box Procedure, Table 3-57. If not using an Alarm Test Box,
follow the procedure listed in Table 3-58.
CDI Alarm Input Verification with Alarms Test Box
Table 3-57 describes how to test the CDI alarm input verification using
the Alarm Test Box. Follow the steps as instructed and compare results
with the LMF display.
NOTE
It may take a few seconds for alarms to be reported. The default
delay is 5 seconds. Leave the alarms test box switches in the new
position until the alarms have been reported.
Table 3-57: CDI Alarm Input Verification Using the Alarms Test Box
Step
Action
Connect the LMF to the BTS and log into the BTS.
Select the MGLI.
Click on the Device menu.
Click on the Set Alarm Relays menu item.
Click on Normally Open.
A status report window displays the results of the action.
Click on the OK button to close the status report window.
Set all switches on the alarms test box to the Open position.
Connect the alarms test box to the ALARM A connector (see Figure 3-31).
Set all of the switches on the alarms test box to the Closed position. An alarm should be reported for
each switch setting.
10
Set all of the switches on the alarms test box to the Open position. A clear alarm should be reported
for each switch setting.
11
Disconnect the alarms test box from the ALARM A connector.
12
Connect the alarms test box to the ALARM B connector.
13
Set all switches on the alarms test box to the Closed position. An alarm should be reported for each
switch setting
. . . continued on next page
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Alarms Testing
68P09258A31–A
Table 3-57: CDI Alarm Input Verification Using the Alarms Test Box
Step
Action
14
Set all switches on the alarms test box to the Open position. A clear alarm should be reported for each
switch setting.
15
Disconnect the alarms test box from the ALARM B connector.
16
Select the MGLI.
17
Click on the Device menu.
18
Click on the Set Alarm Relays menu item.
19
Click on Normally Closed. A status report window displays the results of the action.
20
Click OK to close the status report window.
Alarms should be reported for alarm inputs 1 through 36.
21
Set all switches on the alarms test box to the Closed position.
22
Connect the alarms test box to the ALARM A connector.
Alarms should be reported for alarm inputs 1 through 18.
23
Set all switches on the alarms test box to the Open position.
An alarm should be reported for each switch setting.
24
Set all switches on the alarms test box to the Closed position.
A clear alarm should be reported for each switch setting.
25
Disconnect the alarms test box from the ALARM A connector.
26
Connect the alarms test box to the ALARM B connector.
A clear alarm should be reported for alarm inputs 19 through 36.
27
Set all switches on the alarms test box to the Open position.
An alarm should be reported for each switch setting.
28
Set all switches on the alarms test box to the Closed position.
A clear alarm should be reported for each switch setting.
29
Disconnect the alarms test box from the ALARM B connector.
30
Select the MGLI.
31
Click on the Device menu.
32
Click on the Set Alarm Relays menu item.
33
Click on Unequipped.
A status report window displays the results of the action.
34
Click on the OK button to close the status report window.
35
Connect the alarms test box to the ALARM A connector.
36
Set all switches on the alarms test box to both the Open and the Closed position.
No alarm should be reported for any switch settings.
. . . continued on next page
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Alarms Testing
68P09258A31–A
Table 3-57: CDI Alarm Input Verification Using the Alarms Test Box
Step
Action
37
Disconnect the alarms test box from the ALARM A connector.
38
Connect the alarms test box to the ALARM B connector.
39
Set all switches on the alarms test box to both the Open and the Closed position.
No alarm should be reported for any switch settings.
40
Disconnect the alarms test box from the ALARM B connector.
41
Load data to the MGLI to reset the alarm relay conditions according to the CDF file.
CDI Alarm Input Verification without Alarms Test Box
Table 3-58 describes how to test the CDI alarm input verification
without the use of the Alarms Test Box. Follow the steps as instructed
and compare results with the LMF display.
NOTE
It may take a few seconds for alarms to be reported. The default
delay is 5 seconds. When shorting alarm pins wait for the alarm
report before removing the short.
Table 3-58: CDI Alarm Input Verification Without the Alarms Test Box
Step
Action
Connect the LMF to the BTS and log into the BTS.
Select the MGLI.
Click on the Device menu.
Click on the Set Alarm Relays menu item.
Click on Normally Open.
A status report window displays the results of the action.
Click on OK to close the status report window.
Refer to Figure 3-32 and sequentially short the ALARM A connector CDI 1 through CDI 18 pins
(25–26 through 59–60) together.
An alarm should be reported for each pair of pins that are shorted.
A clear alarm should be reported for each pair of pins when the short is removed.
Refer to Figure 3-32 and sequentially short the ALARM B connector CDI 19 through CDI 36 pins
(25–26 through 59–60) together.
An alarm should be reported for each pair of pins that are shorted.
A clear alarm should be reported for each pair of pins when the short is removed.
Select the MGLI.
10
Click on the Device menu.
11
Click on the Set Alarm Relays menu item.
. . . continued on next page
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Alarms Testing
68P09258A31–A
Table 3-58: CDI Alarm Input Verification Without the Alarms Test Box
Step
Action
12
Click on Normally Closed.
A status report window displays the results of the action.
13
Click on OK to close the status report window.
Alarms should be reported for alarm inputs 1 through 36.
14
Refer to Figure 3-32 and sequentially short the ALARM A connector CDI 1 through CDI 18 pins
(25–26 through 59–60) together.
A clear alarm should be reported for each pair of pins that are shorted.
An alarm should be reported for each pair of pins when the short is removed.
15
Refer to Figure 3-32 and sequentially short the ALARM B connector CDI 19 through CDI 36 pins
(25–26 through 59–60) together.
A clear alarm should be reported for each pair of pins that are shorted.
An alarm should be reported for each pair of pins when the short is removed.
16
Select the MGLI.
17
Click on the Device menu.
18
Click on the Set Alarm Relays menu item.
19
Click on Unequipped.
A status report window displays the results of the action.
20
Click on OK to close the status report window.
21
Refer to Figure 3-32 and sequentially short the ALARM A connector CDI 1 through CDI 18 pins
(25–26 through 59–60) together.
No alarms should be displayed.
22
Refer to Figure 3-32 and sequentially short the ALARM B connector CDI 19 through CDI 36 pins
(25–26 through 59–60) together.
No alarms should be displayed.
23
Load data to the MGLI to reset the alarm relay conditions according to the CDF file.
Oct 2003
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Alarms Testing
68P09258A31–A
Pin and Signal Information for Alarm Connectors
Table 3-59 lists the pins and signal names for Alarms A and B.
Table 3-59: Pin and Signal Information for Alarm Connectors
Wire
Pin Color
Alarm A
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Blu/Wht
Wht/Blu
Org/Wht
Wht/Org
Grn/Wht
Wht/Grn
Brn/Wht
Wht/Brn
Slt/Wht
Wht/Slt
Blu/Red
Red/Blu
Org/Red
Red/Org
Grn/Red
Red/Grn
Brn/Red
Red/Brn
Slt/Red
Red/Slt
Blu/Blk
Blk/Blu
Org/Blk
Blk/Org
Grn/Blk
Blk/Grn
Brn/Blk
Blk/Brn
Slt/Blk
A CDO1 NC
A CDO1 Com
A CDO1 NO
A CDO2 NC
A CDO2 Com
A CDO2 NO
A CDO3 NC
A CDO3 Com
A CDO3 NO
A CDO4 NC
A CDO4 Com
A CDO4 NO
A CDO5 NC
A CDO5 Com
A CDO5 NO
A CDO6 NC
A CDO6 Com
A CDO6 NO
A CDO7 NC
A CDO7 Com
A CDO7 NO
A CDO8 NC
A CDO8 Com
A CDO8 NO
Cust Retn 1
A CDI 1
Cust Retn 2
A CDI 2
Cust Retn 3
30
Blk/Slt
A CDI 3
Signal Name
Alarm B
B CDO9 NC
B CDO9 Com
B CDO9 NO
B CDO10 NC
B CDO10 Com
B CDO10 NO
B CDO11 NC
B CDO11 Com
B CDO11 NO
B CDO12 NC
B CDO12 Com
B CDO12 NO
B CDO13 NC
B CDO13 Com
B CDO13 NO
B CDO14 NC
B CDO14 Com
B CDO14 NO
B CDO15 NC
B CDO15 Com
B CDO15 NO
B CDO16 NC
B CDO16 Com
B CDO16 NO
B CDI 19
Cust Retn 19
B CDI 20
Cust Retn 20
B CDI 21
*Pwr Conv Alm
Cust Retn 21
*Pwr Conv Retn
+27V
–48V
+27V
–48V
Wire
Pin Color
Signal Name
Alarm A
Alarm B
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
Blu/Yel
Yel/Blu
Org/Yel
Yel/Org
Grn/Yel
Yel/Grn
Brn/Yel
Yel/Brn
Slt/Yel
Yel/Slt
Blu/Vio
Vio/Blu
Org/Vio
Vio/Blu
Grn/Vio
Vio/Grn
Brn/Vio
Vio/Brn
Slt/Vio
Vio/Slt
Red/Wht
Wht/Red
Blk/Wht
Wht/Blk
Yel/Wht
Wht/Yel
Vio/Wht
Wht/Vio
Blk/Red
Cust Retn 4
A CDI 4
Cust Retn 5
A CDI 5
Cust Retn 6
A CDI 6
Cust Retn 7
A CDI 7
Cust Retn 8
A CDI 8
Cust Retn 9
A CDI 9
Cust Retn 10
A CDI 10
Cust Retn 11
A CDI 11
Cust Retn 12
A CDI 12
Cust Retn 13
A CDI 13
Cust Retn 14
A CDI 14
Cust Retn 15
A CDI 15
Cust Retn 16
A CDI 16
Cust Retn 17
A CDI 17
Cust Retn 18
B CDI 22
Cust Retn 22
B CDI 23
Cust Retn 23
B CDI 24
Cust Retn 24
B CDI 25
Cust Retn 25
B CDI 26
Cust Retn 26
B CDI 27
Cust Retn 27
B CDI 28
Cust Retn 28
B CDI 29
Cust Retn 29
B CDI 30
Cust Retn 30
B CDI 31
Cust Retn 31
B CDI 32
Cust Retn 32
B CDI 33
Cust Retn 33
B CDI 34
Cust Retn 34
B CDI 35
Cust Retn 35
B CDI 36
60
Red/Blk
A CDI 18
Cust Retn 36
NOTE
*For –48V, reserved for Power Supply Module Alarm signal. NOT for use as CDOs or CDIs.
All Cust Rtrn 1–18 are electronically tied together at the RFMF.
All Cust Rtrn 19–36 are electronically tied together at the RFMF.
CDO = Customer Defined Output; CDI = Customer Defined Input;
NC – normally closed, NO – normally open, Com – common
The “A CDI” numbering is from the LMF/OMCR/CBSC perspective. LMF/OMCR/CBSC starts the numbering at 19
(giving 19 – 36). Actual cable hardware starts the numbering at 0 (giving 0–17)
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Chapter 4
Automated Acceptance Test
Procedure
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-1
Automated Acceptance Test Procedures
68P09258A31–A
Automated Acceptance Test Procedures
Introduction
The Automated Acceptance Test Procedure (ATP) allows Cellular Field
Engineers (CFEs) to run automated acceptance tests on all equipped BTS
subsystem devices using the Local Maintenance Facility (LMF) and
supported test equipment per the current Cell Site Data File (CDF)
assignment.
The results of these tests (at the option of the operator) are written to a
file that can be printed. All tests are controlled from the LMF platform
using the GPIB interface, therefore, only recommended test equipment
supported by the LMF can be used.
This chapter describes the tests run from the GUI environment, which is
the recommended method. The GUI provides the advantages of
simplifying the LMF user interface, reducing the potential for miskeying
commmands and associated parameters, and speeding up the execution
of complex operations involving multiple command strings. If you feel
the command line interface (CLI) will provide additional insight into the
progress of ATPs and problems that could possibly be encountered, refer
to LMF CLI Commands.
NOTE
– Before performing any tests, use an editor to view the
“Caveats” section of the “readme.txt” file in the c:\wlmf
folder for any applicable information.
– The ATP test is to be performed on out-of-service (OOS)
sectors only.
– DO NOT substitute test equipment not supported by the
LMF.
Refer to Chapter 3 for detailed interconnection information needed for
calibrating equipment, cables, and other test equipment set components.
4-2
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Oct 2003
Automated Acceptance Test Procedures
68P09258A31–A
Reduced ATP
NOTE
Equipment has been factory–tested for FCC compliance. If
license–governing bodies require documentation supporting
SITE compliance with regulations, a full ATP may be necessary.
Perform the Reduced ATP only if reports for the specific BTS
site are NOT required.
After downloading the proper operational software to the BTS, the CFE
must perform these procedures (minimal recommendation):
1. Verify the TX/RX paths by performing TX Calibration, TX Audit,
and FER tests.
2. Retrieve Calibration Data required for normal site operation.
Should failures occur while performing the specified tests, refer to the
Basic Troubleshooting section of this manual for help in determining the
failure point. Once the point of failure has been identified and corrected,
refer to the BTS Optimization and ATP Test Matrix (Table C-3) to
determine the applicable test that must be performed.
In the unlikely event that the BTS passes these tests but has a forward
link problem during normal operation, the CFE should then perform the
additional TX tests for troubleshooting: TX spectral mask, TX rho, and
TX code domain.
NOTE
Refer to Chapter 3 for detailed information on test set
connections for calibrating equipment, cables and other test set
components, if required.
Customer requirements determine which ATP tests are to be performed
and the field engineer selects the appropriate ATP tests to run.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-3
Automated Acceptance Test Procedures
68P09258A31–A
ATP Test Options
There are three different ATP testing options that can be performed to
completely test a BTS. Depending on your requirements, one of the
following ATP testing options should be run. Table 4-1 provides the
procedure to execute an ATP test. To completely test a BTS, run the ATP
tests according to one of the following ATP testing options:
ATP Testing Option 1
S All TX/RX test – Executes all the TX and RX tests as described in
testing option 2.
ATP Testing Option 2
S All TX test – TX tests verify the performance of the BTS transmit line
up. These include the GLI, MCC, BBX, and CIO cards, the LPAs and
passive components including splitters, combiners, bandpass filter,
and RF cables.
S All RX test – RX tests verify the performance of the BTS receiver line
up. These includes the MPC (for starter frames), EMPC (for
expansion frames), CIO, BBX, MCC, and GLI cards and the passive
components including RX filter (starter frame only), and RF cables.
ATP Testing Option 3
These tests can be run individually:
4-4
TX Mask test
Rho test
Pilot Time Offset test
Code Domain Power test
FER test
NOTE
The Full Optimization test can be run if you want the TX path
calibrated, BLO downloaded, and TX audited before all the TX
and RX tests are run.
NOTE
If manual testing has been performed with the HP analyzer,
remove the manual control/system memory card from the card
slot and set the IO CONFIG to the Talk & Listen mode before
starting the automated testing.
NOTE
The STOP button can be used to stop the testing process.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Automated Acceptance Test Procedures
68P09258A31–A
ATP Test Prerequisites
Before attempting to run any ATP tests, ensure the following have been
completed:
S BTS has been optimized and calibrated (see Chapter 3).
S LMF is logged into the BTS.
S CSMs, GLIs, BBXs, MCCs, and TSU (if the RFDS is installed) have
correct code load and data load.
Primary CSM, GLI, and MCCs are INS_ACT (bright green).
BBXs are calibrated and BLOs are downloaded.
No BBXs are keyed (transmitting).
BBXs are OOS_RAM (yellow).
Test cables are calibrated.
Test equipment is connected for ATP tests (see Figure 3-19 through
Figure 3-24 starting on page 3-68).
S Test equipment has been warmed up 60 minutes and calibrated.
S GPIB is on.
S BTS transmit connectors are properly terminated for the test(s) to be
performed.
WARNING
Before performing the FER, be sure that all PAs are turned OFF
(circuit breakers pulled) or that all transmitter ports are properly
terminated.
All transmit ports must be properly terminated for all ATP tests.
Failure to observe these warnings may result in bodily injury or
equipment damage.
TX OUT Connection
NOTE
Oct 2003
Many of the acceptance test procedures require taking
measurements at the TX OUT (BTS/RFDS) connector. At sites
without RFDS installed, all measurements will be via the BTS
TX OUT connector. At sites with RFDS installed, all
measurements will be via the RFDS directional coupler TX
OUT connector.
1X SCt 4812T BTS Optimization/ATP
4-5
Automated Acceptance Test Procedures
68P09258A31–A
Required Test Equipment
The following test equipment is required:
WARNING
NOTE
4-6
LMF
Power meter (used with HP8921A/600 and Advantest R3465)
Communications system analyzer
Signal generator for FER testing (required for all communications
system analyzers for 1X FER)
– Before installing any test equipment directly to any BTS
TX OUT connector, verify that there are no CDMA
channels keyed.
– At active sites, have the OMCR/CBSC place the carrier
assigned to the PAs under test OOS. Failure to do so can
result in serious personal injury and/or equipment damage.
The test equipment must be re–calibrated before using it to
perform the TX Acceptance Tests.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Automated Acceptance Test Procedures
68P09258A31–A
Individual Acceptance Tests
The following individual ATP tests can be used to evaluate specific
aspects of BTS operation against individual performance requirements.
All testing is performed using the LMF GUI environment.
TX Testing
TX tests verify any given transmit antenna path and output power
control. All tests are performed using the external, calibrated test
equipment. All measurements are made at the appropriate BTS TX OUT
connector(s).
TX tests verify TX operation of the entire CDMA forward link using
selected BBXs assigned to respective sector antennas. Each BBX is
keyed up to generate a CDMA carrier (using both bbxlevel and BLO)
at the CDF file–specified carrier output power level.
RX Testing
RX testing verifies receive antenna paths for BBXs selected for the test.
All tests are performed using the external, calibrated test equipment to
inject a CDMA RF carrier with all zero longcode at the specified RX
frequency at the appropriate BTS RX IN connector(s).
RX tests verify RX operation of the entire CDMA reverse link using all
equipped MCCs assigned to all respective sector/antennas.
Individual Tests
The following individual tests can be used to verify the results of
specific tests.
Spectral Purity TX Mask (Primary & Redundant BBX)
This test verifies that the transmitted CDMA carrier waveform generated
on each sector meets the transmit spectral mask specification with
respect to the assigned CDF file values.
Waveform Quality (rho)
This test verifies that the transmitted Pilot channel element digital
waveform quality (rho) exceeds the minimum specified value in
ANSI–J_STD–019. “Rho” represents the correlation between actual and
perfect CDMA modulation spectrum. A rho value of 1.0000 represents
100% (or perfect correlation).
Pilot Time Offset
The Pilot Time Offset is the difference between the CDMA analyzer
measurement interval (based on the BTS system time reference) and the
incoming block of transmitted data from the BTS (Pilot only, Pilot
Gain = 262, PN Offset = 0).
Code Domain Power (Primary & Redundant BBX)
This test verifies the code domain power levels, which have been set for
all ODD numbered Walsh channels, using the OCNS command. This is
done by verifying that the ratio of PILOT divided by OCNS is equal to
10.2 + 2 dB, and, that the noise floor of all EVEN numbered “OFF”
Walsh channels measures < –27 dB (with respect to total CDMA channel
power).
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-7
Automated Acceptance Test Procedures
68P09258A31–A
Frame Error Rate
The Frame Error Rate (FER) test verifies RX operation of the entire
CDMA Reverse Link using all equipped MCCs assigned to all
respective sectors/antennas. This test verifies the BTS sensitivity on all
traffic channel elements currently configured on all equipped MCCs at
an RF input level of –119 dBm (or –116 dBm if using TMPC).
4-8
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Automated Acceptance Test Procedures
68P09258A31–A
ATP Test Procedure
Follow the procedure in Table 4-1 to perform any ATP test.
Table 4-1: ATP Test Procedure
Step
Action
Be sure that all prerequisites described on page 4-5 have been met.
NOTE
If the LMF has been logged into the BTS with a different Multi–Channel Preselector setting than the
one to be used for this test, the LMF must be logged out of the BTS and logged in again with the new
Multi–Channel Preselector setting. Using the wrong MPC setting can cause a false test failure.
Select the device(s) to be tested.
From the Tests menu, select the desired test from the pulldown menu:
– All TX/RX ATP... / All TX ATP... / All RX ATP... or
– TX > (TX Mask... / Rho... / Pilot Time Offset... / Code Domain Power...) or
– RX > FER...
Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick
list. To select multiple items, hold down the  or  key while making the selections.
Verify that the correct channel number for the selected carrier is shown in the Carrier # Channels
box. If it is not, obtain the latest bts–#.cdf (or bts–#.necf) and cbsc–#.cdf files from the CBSC.
NOTE
If necessary, the correct channel number may be manually entered into the Carrier # Channels box.
If applicable, select Verify BLO (default) or Single–sided BLO.
NOTE
Single–sided BLO is only used when checking non–redundant transceivers.
For RX select the appropriate RX branch (Both, Main, or Diversity) in the drop–down list.
In the Rate Set box, select the appropriate data rate (1=9600, 2=14400, 3=9600 1X) from the
drop–down list.
NOTE
The Rate Set selection of 1 is only available if non–1X cards are selected for the test.
The Rate Set selection of 2 is only available if non–1X cards are selected for the test.
The Rate Set selection of 3 is only available if 1X cards are selected for the test.
Enter the channel elements to be tested for the RX ATP in the Channel Element(s) box. By default,
all channel elements are specified.
Use one of the following methods to enter more than one channel element:
– Enter non–sequential channel elements separated by a comma and no spaces (for example;
0,5,15).
– Enter a range of sequential channel elements by typing the first and last channel elements
separated by two periods (for example; 0..15).
NOTE
The channel element numbers are 0 based; that is the first channel element is 0.
. . . continued on next page
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-9
Automated Acceptance Test Procedures
68P09258A31–A
Table 4-1: ATP Test Procedure
Step
10
Action
If applicable, select a test pattern from the Test Pattern pick list.
NOTE
S Selecting Pilot (default) performs tests using only a pilot signal.
S Selecting Standard performs tests using pilot, synch, paging and 6 traffic channels. This requires
an MCC to be selected.
S Selecting CDFPilot performs tests using only a pilot signal, however, the gain for the channel
elements is specified in the CDF file.
S Selecting CDF performs tests using pilot, synch, paging and 6 traffic channels, however, the gain
for the channel elements is specified in the CDF file.
11
Click on the OK button. The status report window and a Directions pop-up are displayed.
12
Follow the cable connection directions as they are displayed, and click the Continue button to begin
testing. The test results are displayed in the status report window.
13
Click on Save Results or Dismiss. If Dismiss is used, the test results will not be saved in the test
report file.
4-10
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Individual ATP Test Background Information
68P09258A31–A
Individual ATP Test Background Information
TX Spectral Purity Transmit Mask Acceptance Test (Tx Mask)
This test verifies the spectral purity of each BBX carrier keyed up at a
specific frequency, per the current CDF file assignment. All tests are
performed using the external calibrated test set, controlled by the same
command. All measurements are via the appropriate TX OUT
(BTS/RFDS) connector.
The Pilot Gain is set to 541 for each antenna, and all channel elements
from the MCCs are forward-link disabled. The BBX is keyed up, using
both bbxlvl and bay level offsets, to generate a CDMA carrier (with pilot
channel element only). BBX power output is set to obtain +40 dBm as
measured at the TX OUT connector (on either the BTS or RFDS
directional coupler).
NOTE
TX output power is set to +40 dBm by setting BTS power level
to +33.5 dBm to compensate for 6.5 dB increase from pilot gain
set to 541.
The calibrated communications test set measures and returns the
attenuation level of all spurious and IM products in a 30 kHz resolution
bandwidth. With respect to the mean power of the CDMA channel
measured in a 1.23 MHz bandwidth in dB, verify that results meet
system tolerances at the following test points:
S 1.7/1.9 GHz:
– at least –45 dB @ + 900 kHz from center frequency
– at least –45 dB @ – 900 kHz from center frequency
S 800 MHz:
–
–
–
–
at least –45 dB @ + 750 kHz from center frequency
at least –45 dB @ – 750 kHz from center frequency
at least –60 dB @ – 1980 kHz from center frequency
at least –60 dB @ – 1980 kHz from center frequency
The BBX then de-keys, and, if selected, the MCC is re-configured to
assign the applicable redundant BBX to the current TX antenna path
under test. The test is then repeated.
See Table 4-1 to perform this test.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-11
Individual ATP Test Background Information
68P09258A31–A
Figure 4-1: TX Mask Verification Spectrum Analyzer Display
Mean CDMA Bandwidth
Power Reference
.5 MHz Span/Div
Ampl 10 dB/Div
Center Frequency
Reference
Attenuation level of all
spurious and IM products
with respect to the mean
power of the CDMA channel
+ 1980 kHz
– 1980 kHz
– 900 kHz
– 750 kHz
+ 900 kHz
+750 kHz
FW00282
TX Waveform Quality (rho) Acceptance Test
This test verifies the transmitted Pilot channel element digital waveform
quality of each BBX carrier keyed up at a specific frequency per the
current CDF file assignment. All tests are performed using the external
calibrated test set controlled by the same command. All measurements
are via the appropriate TX OUT (BTS/RFDS) connector.
The Pilot Gain is set to 262 for each antenna, and all channel elements
from the MCCs are forward link disabled. The BBX is keyed up, using
both bbxlvl and bay level offsets, to generate a CDMA carrier (with pilot
channel element only, Walsh code 0). BBX power output is set to
40 dBm as measured at the TX OUT connector (on either the BTS or
RFDS directional coupler).
The calibrated communications test set measures and returns the Pilot
channel element digital waveform quality (rho) in dB, verifying that the
result meets system tolerances:
S Waveform quality (rho) should be w0.912 (–0.4dB).
The BBX then de-keys and, if selected, the MCC is re-configured to
assign the applicable redundant BBX to the current TX antenna path
under test. The test is then repeated.
See Table 4-1 to perform this test.
4-12
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Individual ATP Test Background Information
68P09258A31–A
TX Pilot Time Offset Acceptance Test
This test verifies the transmitted Pilot channel element Pilot Time Offset
of each BBX carrier keyed up at a specific frequency per the current
CDF file assignment. All tests are performed using the external
calibrated test set controlled by the same command. All measurements
are via the appropriate TX OUT (BTS/RFDS) connector.
The Pilot Gain is set to 262 for each antenna, and all TCH elements from
the MCCs are forward link disabled. The BBX is keyed up, using both
bbxlvl and bay level offsets, to generate a CDMA carrier (with pilot
channel element only, Walsh code 0). BBX power output is set to
40 dBm as measured at the TX OUT connector (on either the BTS or
RFDS directional coupler).
The calibrated communications test set measures and returns the Pilot
Time Offset in µs, verifying results meet system tolerances:
S Pilot Time Offset should be within v3 ms of the target PT
Offset (0 ms).
The BBX then de-keys, and if selected, the MCC is re-configured to
assign the applicable redundant BBX to the current TX antenna path
under test. The test is then repeated.
See Table 4-1 to perform this test.
TX Code Domain Power/Noise Floor Acceptance Test
This test verifies the Code Domain Power/Noise of each BBX carrier
keyed up at a specific frequency per the current CDF file assignment.
All tests are performed using the external calibrated test set controlled by
the same command. All measurements are via the appropriate TX OUT
(BTS/RFDS) connector.
For each sector/antenna under test, the Pilot Gain is set to 262. All MCC
channel elements under test are configured to generate Orthogonal
Channel Noise Source (OCNS) on different odd Walsh codes and to be
assigned a full–rate gain of 81. The maximum number of MCC/CEs to
be tested an any one time is 32 (32 odd Walsh codes). If more than 32
CEs exist, then multiple sets of measurements are made; so all channel
elements are verified on all sectors.
BBX power output is set to 40 dBm as measured at the TX OUT
connector (on either the BTS or RFDS directional coupler).
Verify the code domain power levels, which have been set for all ODD
numbered Walsh channels, using the OCNS command. This is done by
verifying that Pilot Power (dBm) minus OCNS Power (dBm) is equal to
10.2 $ 2 dB and that the noise floor of all “OFF” Walsh channels
measures v –27 dB (with respect to total CDMA channel power).
NOTE
Oct 2003
When performing this test using the LMF and the MCC is an MCC8E
or MCC24E, the redundant BBX may fail or show marginal
performance. This is due to a timing mismatch that the LMF does not
address. Performing this test from the CBSC will not have this timing
problem.
1X SCt 4812T BTS Optimization/ATP
4-13
Individual ATP Test Background Information
68P09258A31–A
The BBX then de-keys and, if selected, the MCC is re-configured to
assign the applicable redundant BBX to the current TX antenna path
under test. The test is then repeated. Upon completion of the test, the
OCNS is disabled on the specified MCC/CE.
See Table 4-1 to perform this test.
Figure 4-2: Code Domain Power and Noise Floor Levels
Pilot Channel
PILOT LEVEL
MAX OCNS
CHANNEL
8.2 dB
12.2 dB
MAX OCNS SPEC.
Active channels
MIN OCNS SPEC.
MIN OCNS
CHANNEL
MAX NOISE
FLOOR
MAXIMUM NOISE FLOOR:
< –27 dB SPEC.
Inactive channels
Walsh 0 1 2 3 4 5 6 7
...
64
Showing all OCNS Passing
Pilot Channel
PILOT LEVEL
FAILURE – EXCEEDS
MAX OCNS SPEC.
8.2 dB
Active channels
12.2 dB
MAX OCNS SPEC.
MIN OCNS SPEC.
FAILURE – DOES NOT
MEET MIN OCNS SPEC.
FAILURE – EXCEEDS MAX
NOISE FLOOR SPEC.
MAXIMUM NOISE FLOOR:
< –27 dB
Inactive channels
Walsh 0 1 2 3 4 5 6 7
...
Indicating Failures
64
FW00283
RX Frame Error Rate (FER) Acceptance Test
This test verifies the BTS FER on all traffic channel elements currently
configured on all equipped MCCs (full rate at 1% FER) at an RF input
level of –119 dBm [or –116 dBm if using Tower Top
Amplifier (TMPC)]. All tests are performed using the external calibrated
test set as the signal source controlled by the same command. All
measurements are via the LMF.
The Pilot Gain is set to 262 for each TX antenna, and all channel
elements from the MCCs are forward-link disabled. The BBX is keyed
4-14
1X SCt 4812T BTS Optimization/ATP
Oct 2003
68P09258A31–A
Individual ATP Test Background Information
up, using only bbxlvl level offsets, to generate a CDMA carrier (with
pilot channel element only). BBX power output is set to –20 dBm as
measured at the TX OUT connector (on either the BTS or RFDS
directional coupler). The BBX must be keyed to enable the RX receive
circuitry.
The LMF prompts the MCC/CE under test to measure all zero longcode
and provide the FER report on the selected active MCC on the reverse
link for both the main and diversity RX antenna paths, verifying that
results meet the following specification:
S FER returned less than 1% and total frames measured is 1500
All MCC/CEs selected are tested on the specified RX antenna path. The
BBX then de-keys and, if selected, the MCC is re-configured to assign
the applicable redundant BBX to the current RX antenna paths under
test. The test is then repeated.
See Table 4-1 to perform this test.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
4-15
Generating an ATP Report
68P09258A31–A
Generating an ATP Report
Background
Each time an ATP test is run, an ATP report is updated to include the
results of the most recent ATP tests if the Save Results button is used to
close the status report window. The ATP report is not updated if the
status reports window is closed using the Dismiss button.
ATP Report
Each time an ATP test is run, a separate report is created for each BTS
and includes the following for each test:
Test name
BBX number
Channel number
Carrier number
Sector number
Upper test limit
Lower test limit
Test result
PASS or FAIL
Description information (if applicable)
Time stamp
Details/Warning information (if applicable)
The report can be printed if the LMF computer is connected to a printer.
Follow the procedure in the Table 4-2 to view and/or print the ATP
report for a BTS.
Table 4-2: Generating an ATP Report
n Step
Click on the Login tab (if not in the forefront).
Select the desired BTS from the available Base Station
pick list.
Click on the Report button.
Click on a column heading to sort the report.
4-16
Action
– If not desiring a printable file copy, click on the
Dismiss button.
– If requiring a printable file copy, select the desired
file type in the picklist and click on the Save button.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Chapter 5
Prepare to Leave the Site
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-1
Updating Calibration Data Files
68P09258A31–A
Updating Calibration Data Files
Software Release caveats
With Software Release 2.16.1.x, the packet BTS will NOT detect a new
calibration file on the OMC–R. A manual workaround is available in
bulletin cdma_g_bts_059. This will be corrected in Software Release
2.16.3.
Software Release 2.16.3 will allow the user to load the calibration file
from the LMF directly onto the MGLI. The MGLI will then ftp the new
calibration file to the OMC–R, thereby eliminating the need for the user
to place the calibration file at the OMC–R.
Copy and Load Cal File to to CBSC
After completing the TX calibration and audit, updated CAL file
information must be moved from the LMF Windows environment back
to the CBSC, a Unix environment. The following procedures detail
moving files from one environment to the other.
Copying CAL files from LMF to a Diskette
Follow the procedures in Table 5-1 to copy the CAL files from an LMF
computer to a 3.5 diskette.
Table 5-1: Copying CAL Files to a Diskette
Step
Action
With Windows running on the LMF computer, insert a disk into Drive A:\.
Launch the Windows Explorer application program from the Start > Programs menu list.
Select the applicable :\).
With Solaris versions of Unix, create a Unix–formatted version of the bts–#.cal file in the home
directory by performing the following:
9a
– Type in dos2unix /floppy/no_name/bts–#.cal bts–#.cal and press the Enter key.
Where: # = BTS number for which the CAL file was created
NOTE
Other versions of Unix do not support the dos2unix command. In these cases, use the Unix cp (copy)
command. The copied files will contain DOS line feed characters which must be edited out with a
Unix text editor.
10
Type in ls –l *.cal and press the Enter key. Verify the CAL files have been copied. Verify all CAL
files to be transferred appear in the displayed listing.
11
Type eject and press the Enter key.
12
Remove the diskette from the workstation.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-3
Prepare to Leave the Site
68P09258A31–A
Prepare to Leave the Site
External Test Equipment Removal
Perform the procedure in Table 5-3 to disconnect the test equipment and
configure the BTS for active service.
Table 5-3: External Test Equipment Removal
Step
5-4
Action
Disconnect all external test equipment from all TX and RX
connectors on the top of the frame.
Reconnect and visually inspect all TX and RX antenna feed
lines at the top of the frame.
CAUTION
Verify that all sector antenna feed lines are connected to the
correct ports on the frame. Crossed antenna cables will cause
system degradation of call processing.
NOTE
Each module or device can be in any state prior to downloading.
Each module or device will be in an OOS_RAM state after
downloading has completed.
– For all LMF commands, information in italics represents
valid ranges for that command field.
– Only those fields requiring an input will be specified.
Default values for other fields will be assumed.
– For more complete command examples (including system
response details), refer to the CDMA LMF User Guide.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Prepare to Leave the Site
68P09258A31–A
BTS Site Span Configuration Verification
Table 5-4 describes how to verify the current Span Framing Format and
Line Build Out (LBO) parameters. ALL MGLI2/GLI2 boards in all
C–CCP shelves that terminate a T1/E1 span should be verified.
Table 5-4: BTS Span Parameter Configuration
Step
Action
Connect a serial cable from the LMF COM1 port (via null modem board) to the front panel of the
MGLI2 MMI port (see Figure 5-1).
Start an MMI communication session with MGLI2 by using the Windows desktop shortcut icon (see
Table 3-3 on page 3-13).
NOTE
The LMF program must not be running when a Hyperterminal session is started if COM1 is being
used for the MMI session.
Enter the following MMI command to display the current MGLI2/GLI2 framing format and line code
configuration (in bold type):
span view 
Observe a display similar to the options shown below:
COMMAND ACCEPTED:
span view
The parameter in NVM is set to T1_2.
The frame format in flash
Equalization:
Span A – Default (0–131
Span B – Default (0–131
Span C – Default (0–131
Span D – Default (0–131
Span E – Default (0–131
Span F – Default (0–131
is set to use T1_2.
feet
feet
feet
feet
feet
feet
for
for
for
for
for
for
T1/J1,
T1/J1,
T1/J1,
T1/J1,
T1/J1,
T1/J1,
120
120
120
120
120
120
Ohm
Ohm
Ohm
Ohm
Ohm
Ohm
for
for
for
for
for
for
E1)
E1)
E1)
E1)
E1)
E1)
Linkspeed: Default (56K for T1 D4 AMI, 64K otherwise)
Currently, the link is running at the default rate
The actual rate is 0
Clock Alarms (0000):
DPLL is locked and has a reference source.
GPS receiver self test result: passed
Time since reset 0:33:11, time since power on: 0:33:11 . .................................
3-40
NOTE
–
–
–
–
Defaults for span equalization are 0–131 feet for T1/J1 spans and 120 Ohm for E1.
Default linkspeed is 56K for T1 D4 AMI spans and 64K for all other types.
There is no need to change from defaults unless the OMC–R/CBSC span configuration requires it.
If the current MGLI2/GLI2 framing format and line code configuration does not display the
correct choice, proceed to Table 5-5.
Repeat steps 1 through 3 for all remaining GLIs.
Exit the GLI MMI session and HyperTerminal connection by selecting File from the connection
window menu bar, and then Exit from the drop–down menu.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-5
Prepare to Leave the Site
68P09258A31–A
Figure 5-1: MGLI2/GLI2 MMI Port Connection
RS–232 CABLE
FROM LMF COM1
PORT
GLI BOARD
NULL MODEM BOARD
(PART# 8484877P01)
9–PIN TO 9– PIN
RS–232 CABLE
MMI SERIAL PORT
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂ
ÁÂÂÂÂÂÂÂ
ÁÁ
Á
Á Á
FW00344
Set BTS Site Span Configuration
Perform the procedure in Table 5-5 to configure the Span Framing
Format and Line Build Out (LBO) parameters. ALL MGLI2/GLI2
boards in all C–CCP shelves that terminate a T1/E1 span must be
configured.
NOTE
Perform the following procedure ONLY if span configurations
loaded in the MGLI2/GLI2s do not match those in the
OMCR/CBSC data base, AND ONLY when the exact
configuration data is available. Loading incorrect span
configuration data will render the site inoperable.
Table 5-5: Set BTS Span Parameter Configuration
Step
Action
If not already done, connect a serial cable from the LMF COM1 port (via null modem board) to the
front panel of the MGLI2 MMI port (see Figure 5-1).
Start an MMI communication session with CSM–1 by using the Windows desktop shortcut icon (see
Table 3-3 on page 3-13).
NOTE
The LMF program must not be running when a Hyperterminal session is started if COM1 is being
used for the MMI session.
. . . continued on next page
5-6
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Prepare to Leave the Site
68P09258A31–A
Table 5-5: Set BTS Span Parameter Configuration
Step
Action
If required only, enter the following MMI command for each span line to set the BTS span parameters
to match that of the physical spans a – f run to the site:
span_config     
option#1 = the span to change (a – f)
option#2 = the span type (0 – 8):
0 – E1_1 (HDB3, CCS, CRC–4)
1 – E1_2 (HDB3, CCS)
2 – E1_3 (HDB3, CAS, CRC–4, TS16)
3 – E1_4 (HDB3, CAS, TS16)
4 – T1_1 (AMI, DS1 AT&T D4, without ZCS, 3 to 1 packing, Group 0 unusable)
5 – T1_2 (B8ZS, DS1 AT&T ESF, 4 to 1 packing, 64K link)
6 – J1_1 (B8ZS, J1 AT&T ESF, Japan CRC6, 4 to 1 packing)
7 – J1_2 (B8ZS, J1 AT&T ESF, US CRC6, 4 to 1 packing)
8 – T1_3 (AMI, DS1 AT&T D4, with ZCS, 3 to 1 packing, Group 0 unusable)
option#3 = the link speed (56 or 64) Kbps
option#4 = the span equalization (0 – 7):
0 – T1_6 (T1,J1:long haul)
1 – T1_4 (T1,J1:393–524 feet)
2 – T1_4 (T1,J1:131–262 feet)
3 – E1_75 (E1:75 Ohm)
4 – T1_4 (T1,J1:0–131 feet)
5 – T1_4 (T1,J1:524–655 feet)
6 – T1_4 (T1,J1:262–393 feet)
7 – E1_120 (E1:120 Ohm)
option#5 = the slot that has LAPD channel (0 – 31)
Example for setting span configuration to E1_2, 64 Kbps, E1_120–Ohm, LAPD channel 1:
span_config a 1 64 7 1
span_config f 1 64 7 1
Example for setting span configuration to T1_2, 64 Kbps, T1_4 (0–131 feet), LAPD channel 0:
span_config a 5 64 4 0
span_config f 5 64 4 0
NOTE
Make sure that spans a – f are set to the same span type and link speed. The equalization may be
different for each individual span.
After executing the span_config command, the affected MGLI2/GLI2 board MUST be reset and
re–loaded for changes to take effect.
Although defaults are shown, always consult site specific documentation for span type and rate used at
the site.
Press the RESET button on the GLI2 for changes to take effect.
. . . continued on next page
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-7
Prepare to Leave the Site
68P09258A31–A
Table 5-5: Set BTS Span Parameter Configuration
Step
Action
This completes the site specific BTS Span setup for this GLI. Move the MMI cable to the next GLI2
and repeat steps 1 and 4 for ALL MGLI2/GLI2 boards.
Terminate the Hyperterm session and disconnect the LMF from the MGLI/SGLI.
LMF Removal
Perform the procedure in Table 5-6 as required to terminate the LMF
GUI session and remove the LMF computer.
Table 5-6: Terminate the LMF Session and Remove the LMF
Step
Action
! CAUTION
DO NOT power down the CDMA LMF without performing the procedure indicated below.
Corrupted/lost data files may result, and in some cases, the CDMA LMF may lock up.
Log out of all BTS sessions and exit LMF by clicking on File in the LMF window menu bar and selecting
Logout and Exit from the pull–down list.
From the Windows Task Bar click Start>Shutdown. Click Yes when the Shut Down Windows
message appears.
Wait for the system to shut down and the screen to go blank.
Disconnect the LMF terminal Ethernet connector from the BTS cabinet.
Disconnect the LMF serial port, the RS-232 to GPIB interface box, and the GPIB cables as required
for equipment transport.
5-8
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Prepare to Leave the Site
68P09258A31–A
Re–connect BTS T1/E1 Spans and Integrated Frame Modem
Before leaving the site, connect any T1 span TELCO connectors that
were removed to allow the LMF to control the BTS. Refer to Table 5-7
and Figure 5-2 as required.
Table 5-7: T1/E1 Span/IFM Connections
Step
Action
Connect the 50–pin TELCO cables to the BTS span I/O board 50–pin TELCO connectors.
If used, connect the dial–up modem RS–232 serial cable to the Site I/O board RS–232 9–pin
sub D connector.
NOTE
Verify that you connect both SPAN cables (if removed previously), and the Integrated Frame
Modem (IFM) “TELCO” connector.
Figure 5-2: Site and Span I/O Boards T1 Span Connections
SPAN A CONNECTOR
(TELCO) INTERFACE
TO SPAN LINES
50–PIN TELCO
CONNECTORS
REMOVED
SPAN B CONNECTOR
(TELCO) INTERFACE
TO SPAN LINES
RS–232 9–PIN SUB D
CONNECTOR SERIAL
PORT FOR EXTERNAL
DIAL UP MODEM
CONNECTION (IF USED)
TOP of Frame
(Site I/O and Span I/O boards)
FW00299
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-9
Prepare to Leave the Site
68P09258A31–A
Reset All Devices and Initialize Site Remotely
Devices in the BTS should not be left with data and code loaded from
the LMF. The configuration data and code loads used for normal
operation could be different from those stored in the LMF files. Perform
the procedure in Table 5-8 to reset all devices and initialize site remotely.
Table 5-8: Reset BTS Devices and Remote Site Initialization
Step
Action
Terminate the LMF session by following the procedures in Table 5-6.
Reconnect spans by following the procedure in Table 5-7.
– If BTS is configured for circuit operation, go to Step 4.
– If BTS is configured for packet operation, go to Step 5.
Circuit BTS Procedure:
4a
From the BTS site, contact the OMC–R and request the operator to perform a BTS reset.
or
At the BTS site:
– unseat one GLI card at a time and wait for 30 seconds;
– reseat the GLI and wait for it to complete its initialization (this takes about one minute);
– repeat for the second GLI.
4b
Depending on the number of installed operational GLI cards, perform one of the following:
– With fully redundant GLIs, contact the OMC–R and request the operator to run the ACTIVATE
command for the BTS.
– For a non–redundant GLI or a frame where the redundant GLI is not operational, contact the
OMC–R and request the operator:
S ACTIVATE the GLI to set the Nextload attribute for the GLI to the one for the current BSS
software version;
S Disable the GLI;
S Enable the GLI to allow the MM to load the software version specified by the Nextload
attribute;
S Once the GLI is INS_ACT, contact the OMC–R and request the operator ACTIVATE the BTS.
– Once the GLI cards are loaded with the specified code version, the active GLI will verify and
update, as required, the RAM and, if it is necessary, ROM code loads for the installed CSM,
MCC, and BBX cards using the DLM.
. . . continued on next page
5-10
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Prepare to Leave the Site
68P09258A31–A
Table 5-8: Reset BTS Devices and Remote Site Initialization
Step
Action
Packet BTS procedure:
5a
From the BTS site, contact the OMC–R and request the operator to PREACTIVATE the BTS to the
required software version for the BSS. There are two types of PREACTIVATE load processes:
– Rolling Upgrade: This load process is only available when the BTS cards are populated for full
redundancy as applicable.
– Quick Reboot: This process is used when there is not full redundancy for the BTS cards. The
GLI3 will disable and reboot to the new load. This will cause all the other cards to go out of
service. Once it is rebooted, the GLI3 determines which cards require a new load and then
downloads the cards in the order which they establish communication with the GLI3 following
their reboot. The GLI3 can reload up to 16 devices simultaneously.
After all activities at the site have been completed, contact the OMC–R and confirm that the BTS is
under OMC–R control.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
5-11
Prepare to Leave the Site
68P09258A31–A
Notes
5-12
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Chapter 6
Basic Troubleshooting
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-1
Basic Troubleshooting Overview
68P09258A31–A
Basic Troubleshooting Overview
Overview
The information in this section addresses some of the scenarios likely to
be encountered by Cellular Field Engineering (CFE) team members.
This troubleshooting guide was created as an interim reference document
for use in the field. It provides basic “what to do if” basic
troubleshooting suggestions when the BTS equipment does not perform
per the procedure documented in the manual.
Comments are consolidated from inputs provided by CFEs in the field
and information gained form experience in Motorola labs and
classrooms.
6-2
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: Installation
68P09258A31–A
Troubleshooting: Installation
Cannot Log into Cell-Site
Follow the procedure in Table 6-1 to troubleshoot a login failure.
Table 6-1: Login Failure Troubleshooting Procedures
n Step
Action
If the MGLI LED is solid RED, it implies a hardware failure. Reset the MGLI by re-seating it. If
this persists, install a known good MGLI card in the MGLI slot and retry. A Red LED may also
indicate no Ethernet termination at top of frame.
Verify that T1 is disconnected (see Table 3-4 on page 3-16).
If T1 is still connected, verify the CBSC has disabled the BTS.
Try pinging the MGLI (see Table 3-11 on page 3-34).
Verify the LMF is connected to the Primary LMF port (LAN A) in the front of the BTS (see
Table 3-5 on page 3-17).
Verify the LMF was configured properly (see Preparing the LMF section starting on page 3–6).
Verify the BTS-LMF cable is RG-58 [flexible black cable of less than 76 cm (2.5 feet) length].
Verify the Ethernet ports are terminated properly (see Figure 3-9 on page 3-33).
Verify a T-adapter is not used on the LMF side port if connected to the BTS front LMF primary
port.
Try connecting to the I/O panel (top of frame). Use BNC T-adapters at the LMF port for this
connection.
10
Re-boot the LMF and retry.
11
Re-seat the MGLI and retry.
12
Verify IP addresses are configured properly.
Cannot Communicate to Power Meter
Follow the procedure in Table 6-2 to troubleshoot a power meter
communication failure.
Table 6-2: Troubleshooting a Power Meter Communication Failure
n Step
Action
Verify the Power Meter is connected to the LMF with a GPIB adapter.
Verify the cable setup as specified in Chapter 3.
Verify the GPIB address of the power meter is set to the same value displayed in the applicable
GPIB address box of the LMF Options window Test Equipment tab. Refer to Table 3-25 or
Table 3-26 and the GPIB Addresses section of Appendix F for details.
Verify the GPIB adapter DIP switch settings are correct. Refer to the CDMA 2000 Test Equipment
Preparation section of Appendix F for details.
. . . continued on next page
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-3
Troubleshooting: Installation
68P09258A31–A
Table 6-2: Troubleshooting a Power Meter Communication Failure
n Step
Action
Verify the GPIB adapter is not locked up. Under normal conditions, only two green LEDs must be
‘ON’ (Power and Ready). If any other LED is continuously ‘ON’, then cycle GPIB box power and
retry.
Verify the LMF computer COM1 port is not used by another application; for example, if a
HyperTerminal window is open for MMI, close it.
Reset all test equipment by clicking Util in the BTS menu bar and selecting
Test Equipment>Reset from the pull–down lists.
Cannot Communicate to Communications Analyzer
Follow the procedure in Table 6-3 to troubleshoot a communications
analyzer communication failure.
Table 6-3: Troubleshooting a Communications Analyzer Communication Failure
n Step
6-4
Action
Verify signal generator is connected to LMF with GPIB adapter.
Verify cable connections as specified in Chapter 3.
Verify the signal generator GPIB address is set to the same value displayed in the applicable GPIB
address box of the LMF Options window Test Equipment tab. Refer to Table 3-25 or Table 3-26
and the GPIB Address section of Appendix F for details.
Verify the GPIB adapter DIP switch settings are correct. Refer to the CDMA 2000 Test Equipment
Preparation section of Appendix F for details.
Verify the GPIB adapter is not locked up. Under normal conditions, only two green LEDs must be
‘ON’ (Power and Ready). If any other LED is continuously ‘ON’, then cycle the GPIB box power
and retry.
Verify the LMF computer COM1 port is not used by another application; for example, if a
HyperTerminal window is open for MMI, close it.
Reset all test equipment by clicking Util in the BTS menu bar and selecting
Test Equipment>Reset from the pull–down lists.
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: Download
68P09258A31–A
Troubleshooting: Download
Cannot Download CODE to Any Device (card)
Follow the procedure in Table 6-4 to troubleshoot a code download
failure.
Table 6-4: Troubleshooting Code Download Failure
n Step
Action
Verify T1 is disconnected from the BTS.
Verify the LMF can communicate with the BTS device using the Status function.
Communication to the MGLI must first be established before trying to talk to any other BTS
device.
The MGLI must be INS_ACT state (green).
Verify the card is physically present in the cage and powered-up.
If the card LED is solid RED, it implies hardware failure.
Reset the card by re-seating it.
If the LED remains solid red, replace with a card from another slot & retry.
NOTE
The card can only be replaced by a card of the same type.
Re-seat the card and try again.
If a BBX reports a failure message and is OOS_RAM, the code load was OK. Use the LMF
Status function to verify the load.
If the download portion completes and the reset portion fails, reset the device by selecting the
device and Reset.
If a BBX or an MCC remains OOS_ROM (blue) after code download, use the LMF
Device > Status function to verify that the code load was accepted.
10
If the code load was accepted, use LMF Device > Download > Flash to load RAM code into flash
memory.
Cannot Download DATA to Any Device (Card)
Perform the procedure in Table 6-5 to troubleshoot a data download
failure.
Table 6-5: Troubleshooting Data Download Failure
n Step
Oct 2003
Action
Re-seat the card and repeat code and data load procedure.
1X SCt 4812T BTS Optimization/ATP
6-5
Troubleshooting: Download
68P09258A31–A
Cannot ENABLE Device
Before a device can be enabled (placed in-service), it must be in the
OOS_RAM state (yellow) with data downloaded to the device. The color
of the device changes to green once it is enabled.
The three states that devices can be changed to are as follows:
S Enabled (green, INS)
S Disabled (yellow, OOS_RAM)
S Reset (blue, OOS_ROM)
Follow the procedure in Table 6-6 to troubleshoot a device enable
failure.
Table 6-6: Troubleshooting Device Enable (INS) Failure
n Step
Action
Re-seat the card and repeat the code and data load procedure.
If the CSM cannot be enabled, verify the CDF file has correct latitude and longitude data for cell
site location and GPS sync.
Ensure the primary CSM is in INS_ACT state.
NOTE
MCCs will not go INS without the CSM being INS.
Verify the 19.6608 MHz CSM clock; MCCs will not go INS otherwise.
The BBX should not be enabled for ATP tests.
If MCCs give “invalid or no system time”, verify the CSM is operable.
Miscellaneous Errors
Perform the procedure in Table 6-7 to troubleshoot miscellaneous
failures.
Table 6-7: Miscellaneous Failures
n Step
6-6
Action
If LPAs continue to give alarms, even after cycling power at the circuit breakers, then connect an
MMI cable to the LPA and set up a Hyperterminal connection (see Table 3-3 on page 3-13).
Enter ALARMS in the Hyperterminal window.
The resulting LMF display may provide an indication of the problem.
(Call Field Support for further assistance.)
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: Calibration
68P09258A31–A
Troubleshooting: Calibration
Bay Level Offset Calibration Failure
Perform the procedure in Table 6-8 to troubleshoot a BLO calibration
failure.
Table 6-8: Troubleshooting BLO Calibration Failure
n Step
Action
Verify the Power Meter is configured correctly (see the test equipment setup section in Chapter 3)
and connection is made to the proper TX port.
Verify the parameters in the bts–#.cdf file are set correctly for the following bands:
For 1900 MHz:
Bandclass=1; Freq_Band=16; SSType=16
For 800 MHz:
Bandclass=0; Freq_Band=8; SSType=8
For 1700 MHz:
Bandclass=4; Freq_Band=128; SSType=16
Verify that no LPA in the sector is in alarm state (flashing red LED).
Reset the LPA by pulling the circuit breaker and, after 5 seconds, pushing back in.
Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the sensor
head.
Verify the GPIB adapter is not locked up.
Under normal conditions, only two green LEDs must be ‘ON’ (Power and Ready).
If any other LED is continuously ‘ON’, power-cycle (turn power off and on) the GPIB Box and
retry.
Verify the sensor head is functioning properly by checking it with the 1 mW (0 dBm) Power Ref
signal.
If communication between the LMF and Power Meter is operational, the Meter display will show
“RES”.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-7
Troubleshooting: Calibration
68P09258A31–A
Cannot Load BLO
For Load BLO failures see Table 6-7.
Calibration Audit Failure
Follow the procedure in Table 6-9 to troubleshoot a calibration audit
failure.
Table 6-9: Troubleshooting Calibration Audit Failure
n Step
Action
Verify the Power Meter is configured correctly (refer to the test equipment setup section of
Chapter 3).
Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the sensor
head.
Verify that no LPA is in alarm state (rapidly flashing red LED).
Reset the LPA by pulling the circuit breaker and, after 5 seconds, pushing back in.
Verify that no sensor head is functioning properly by checking it with the 1 mW (0 dBm) Power
Ref signal.
After calibration, the BLO data must be re-loaded to the BBXs before auditing.
Click on the BBX(s) and select Device>Download BLO.
Re-try the audit.
Verify the GPIB adapter is not locked up.
Under normal conditions, only two green LEDs must be “ON” (Power and Ready).
If any other LED is continuously “ON”, power-cycle (turn power off and on) the GPIB Box and
retry.
6-8
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: Transmit ATP
68P09258A31–A
Troubleshooting: Transmit ATP
BTS passed Reduced ATP tests but has forward link problem during normal
operation
Follow the procedure in Table 6-10 to troubleshoot a Forward Link
problem during normal operation.
Table 6-10: Troubleshooting Forward Link Failure (BTS Passed Reduced ATP)
n Step
Action
Perform these additional TX tests to troubleshoot a forward link problem:
– TX mask
– TX rho
– TX code domain
Cannot Perform TX Mask Measurement
Follow the procedure in Table 6-11 to troubleshoot a TX mask
measurement failure.
Table 6-11: Troubleshooting TX Mask Measurement Failure
n Step
Action
Verify that TX audit passes for the BBX(s).
If performing manual measurement, verify analyzer setup.
Verify that no LPA in the sector is in alarm state (flashing red LED).
Re-set the LPA by pulling the circuit breaker and, after 5 seconds, pushing it back in.
Cannot Perform Rho or Pilot Time Offset Measurement
Follow the procedure in Table 6-12 to troubleshoot a rho or pilot time
offset measurement failure.
Table 6-12: Troubleshooting Rho and Pilot Time Offset Measurement Failure
n Step
Action
Verify presence of RF signal by switching to spectrum analyzer screen.
Verify PN offsets displayed on the analyzer is the same as the PN offset in the CDF file.
Re–load BBX data and repeat the test.
If performing manual measurement, verify analyzer setup.
Verify that no LPA in the sector is in alarm state (flashing red LED). Reset the LPA by pulling the
circuit breaker and, after 5 seconds, pushing back in.
If Rho value is unstable and varies considerably (e.g. .95,.92,.93), this may indicate that the GPS
is still phasing (i.e., trying to reach and maintain 0 freq. error).
Go to the freq. bar in the upper right corner of the Rho meter and select Hz. Press 
and enter 10, to obtain an average Rho value. This is an indication the GPS has not stabilized
before going INS and may need to be re-initialized.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-9
Troubleshooting: Transmit ATP
68P09258A31–A
Cannot Perform Code Domain Power and Noise Floor Measurement
Perform the procedure in Table 6-13 to troubleshoot a code domain and
noise floor measurement failure.
Table 6-13: Troubleshooting Code Domain Power and Noise Floor Measurement Failure
n Step
Action
Verify presence of RF signal by switching to spectrum analyzer screen.
Verify PN offset displayed on analyzer is same as PN offset being used in the CDF file.
Disable and re-enable MCC (one or more MCCs based on extent of failure).
6-10
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: Receive ATP
68P09258A31–A
Troubleshooting: Receive ATP
Multi–FER Test Failure
Perform the procedure in Table 6-14 to troubleshoot a Multi–FER
failure.
Table 6-14: Troubleshooting Multi-FER Failure
n Step
Action
Verify the test equipment set up is correct for an FER test.
Verify the test equipment is locked to 19.6608 and even second clocks.
On the HP8921A test set, the yellow LED (REF UNLOCK) must be OFF.
Verify the MCCs have been loaded with data and are INS–ACT.
Disable and re-enable the MCC (one or more based on extent of failure).
Disable, re-load code and data, and re-enable the MCC (one or more MCCs based on extent of
failure).
Verify the antenna connections to frame are correct based on the directions messages.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-11
Troubleshooting: CSM Check–list
68P09258A31–A
Troubleshooting: CSM Check–list
Problem Description
Many of the Clock Synchronization Manager (CSM) board failures may
be resolved in the field before sending the boards to the factory for
repair. This section describes known CSM problems identified in field
returns, some of which are field-repairable. Check these problems before
returning suspect CSM boards.
Intermittent 19.6608 MHz Reference Clock/GPS Receiver Operation
If having any problems with CSM board kit numbers, SGLN1145 or
SGLN4132, check the suffix with the kit number. If the kit has version
“AB”, then replace with version “BC” or higher, and return model “AB”
to the repair center.
No GPS Reference Source
Check the CSM boards for proper hardware configuration. CSM kit
SGLN1145, in Slot l, has an on-board GPS receiver; while kit
SGLN4132, in Slot 2, does not have a GPS receiver. Any incorrectly
configured board must be returned to the repair center. Do not attempt to
change hardware configuration in the field. Also, verify the GPS
antenna is not damaged and is installed per recommended guidelines.
Checksum Failure
The CSM could have corrupted data in its firmware resulting in a
non-executable code. The problem is usually caused by either electrical
disturbance or interruption of data during a download. Attempt another
download with no interruptions in the data transfer. Return the CSM
board back to the repair center if the attempt to reload fails.
GPS Bad RX Message Type
This problem is believed to be caused by a later version of CSM
software (3.5 or higher) being downloaded, via LMF, followed by an
earlier version of CSM software (3.4 or lower), being downloaded from
the CBSC. Download again with CSM software code 3.5 or higher.
Return the CSM board back to the repair center if the attempt to reload
fails.
CSM Reference Source Configuration Error
This problem is caused by incorrect reference source configuration
performed in the field by software download. CSM kits SGLN1145 and
SGLN4132 must have proper reference sources configured (as shown
below) to function correctly.
CSM Kit
No.
Hardware
Configuration
CSM Slot
No.
Reference Source
Configuration
CDF Value
SGLN1145
With GPS Receiver
Primary = Local GPS
Backup = Either LFR or HSO
2 or 18
SGLN4132
Without GPS Receiver
Primary = Remote GPS
Backup = Either LFR or HSO
2 or 18
6-12
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Troubleshooting: CSM Check–list
68P09258A31–A
Takes Too Long for CSM to Come INS
This problem may be caused by a delay in GPS acquisition. Check the
accuracy flag status and/or current position. Refer to the GSM system
time/GPS and LFR/HSO verification section in Chapter 3. At least one
satellite should be visible and tracked for the “surveyed” mode and four
satellites should be visible and tracked for the “estimated” mode. Also,
verify correct base site position data used in “surveyed” mode.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-13
C–CCP Backplane Troubleshooting
68P09258A31–A
C–CCP Backplane Troubleshooting
Introduction
The C–CCP backplane is a multi–layer board that interconnects all the
C–CCP modules. The complexity of this board lends itself to possible
improper diagnoses when problems occur.
Connector Functionality
The following connector overview describes the major types of
backplane connectors along with the functionality of each. This
information allows the CFE to:
S Determine which connector(s) is associated with a specific problem
type.
S Isolate problems to a specific cable or connector.
Primary “A” and Redundant “B” Inter Shelf Bus
Connectors
The 40 pin Inter Shelf Bus (ISB) connectors provide an interface bus
from the master GLI to all other GLIs in the modem frame. Their basic
function is to provide clock synchronization from the master GLI to all
other GLIs in the frame.
The ISB also provides the following functions:
S Span line grooming when a single span is used for multiple cages.
S MMI connection to/from the master GLI to cell site modem.
S Interface between GLIs and the AMR (for reporting BTS alarms).
Span Line Connector
The 50–pin span line connector provides a primary and secondary (if
used) span line interface to each GLI in the C–CCP shelf. The span line
is used for MM/EMX switch control of the Master GLI and also all the
BBX traffic.
Primary “A” and Redundant “B” Reference Distribution
Module Input/Output
The Reference Distribution Module (RDM) connectors route the 3 MHz
reference signals from the CSMs to the GLIs and all BBXs in the
backplane. The signals are used to phase lock loop all clock circuits on
the GLIs and BBX boards to produce precise clock and signal
frequencies.
Power Input (Return A, B, and C connectors)
Provides a +27 volt or –48 volt input for use by the power supply
modules.
6-14
1X SCt 4812T BTS Optimization/ATP
Oct 2003
C–CCP Backplane Troubleshooting
68P09258A31–A
Power Supply Module Interface
Each power supply module has a series of three different connectors to
provide the needed inputs/outputs to the C–CCP backplane. These
include a VCC/Ground input connector, a Harting style multiple pin
interface, and a +15 V/Analog Ground output connector. The C–CCP
Power Modules convert +27 or –48 Volts to a regulated +15, +6.5, and
+5.0 Volts to be used by the C–CCP shelf cards. In the –48 V BTS, the
LPA power modules convert –48 Volts to a regulated +27 Volts.
GLI Connector
This connector consists of a Harting 4SU digital connector and a
6–conductor coaxial connector for RDM distribution. The connectors
provide inputs/outputs for the GLIs in the C–CCP backplane.
GLI 10Base–2 Ethernet “A” and “B” Connections
These BNC connectors are located on the C–CCP backplane and routed
to the GLI board. This interface provides all the control and data
communications between the master GLI and the other GLI, between
gateways, and for the LMF on the LAN.
BBX Connector
Each BBX connector consists of a Harting 2SU/1SU digital connector
and two 6–conductor coaxial connectors. These connectors provide DC,
digital, and RF inputs/outputs for the BBXs in the C–CCP backplane.
CIO Connectors
S RX RF antenna path signal inputs are routed through RX Tri–Filters
(on the I/O plate), and via coaxial cables to the two MPC modules –
the six “A” (main) signals go to one MPC; the six “B” (diversity) to
the other. The MPC outputs the low–noise–amplified signals via the
C–CCP backplane to the CIO where the signals are split and sent to
the appropriate BBX.
S A digital bus then routes the baseband signal through the BBX, to the
backplane, then on to the MCC slots.
S Digital TX antenna path signals originate at the MCCs. Each output
is routed from the MCC slot via the backplane appropriate BBX.
S TX RF path signal originates from the BBX, through the backplane to
the CIO, through the CIO, and via multi-conductor coaxial cabling to
the LPAs in the LPA shelf.
C–CCP Backplane Troubleshooting Procedure
Table 6-15 through Table 6-24 provide procedures for troubleshooting
problems that appear to be related to a defective C–CCP backplane. The
tables are broken down into possible problems and steps that should be
taken in an attempt to find the root cause.
NOTE
Oct 2003
Table 6-15 through Table 6-24 must be completed before
replacing ANY C–CCP backplane.
1X SCt 4812T BTS Optimization/ATP
6-15
C–CCP Backplane Troubleshooting
68P09258A31–A
Digital Control Problems
No GLI Control via LMF (all GLIs)
Follow the procedure in Table 6-15 to troubleshoot a GLI control via
LMF failure.
Table 6-15: No GLI Control via LMF (all GLIs)
n Step
Action
Check the 10Base–2 ethernet connector for proper connection, damage, shorts, or opens.
Verify the C–CCP backplane Shelf ID DIP switch is set correctly.
Visually check the master GLI connector (both board and backplane) for damage.
Replace the master GLI with a known good GLI.
No GLI Control through Span Line Connection (All GLIs)
Follow the procedures in Table 6-16 and Table 6-17 to troubleshoot GLI
control failures.
Table 6-16: No GLI Control through Span Line Connection (Both GLIs)
Step
Action
Verify the C–CCP backplane Shelf ID DIP switch is set correctly.
Verify that the BTS and GLIs are correctly configured in the OMCR/CBSC data base.
Visually check the master GLI connector (both board and backplane) for damage.
Replace the master GLI with a known good GLI.
Check the span line inputs from the top of the frame to the master GLI for proper connection and
damage.
Check the span line configuration on the MGLI (see Table 5-4 on page 5-5).
Table 6-17: MGLI Control Good – No Control over Co–located GLI
Step
Action
Verify that the BTS and GLIs are correctly configured in the OMCR CBSC data base.
Check the ethernet for proper connection, damage, shorts, or opens.
Visually check all GLI connectors (both board and backplane) for damage.
Replace the remaining GLI with a known good GLI.
6-16
1X SCt 4812T BTS Optimization/ATP
Oct 2003
C–CCP Backplane Troubleshooting
68P09258A31–A
No AMR Control (MGLI good)
Perform the procedure in Table 6-18 to troubleshoot an AMR control
failure when the MGLI control is good.
Table 6-18: MGLI Control Good – No Control over AMR
Step
Action
Visually check the master GLI connector (both board and backplane) for damage.
Replace the master GLI with a known good GLI.
Replace the AMR with a known good AMR.
No BBX Control in the Shelf – (No Control over
Co–located GLIs)
Perform the procedure in Table 6-19 to troubleshoot a BBX control in
the shelf failure.
Table 6-19: No BBX Control in the Shelf – No Control over Co–located GLIs
Step
Action
Visually check all GLI connectors (both board and backplane) for damage.
Replace the remaining GLI with a known good GLI.
Visually check BBX connectors (both board and backplane) for damage.
Replace the BBX with a known good BBX.
No (or Missing) Span Line Traffic
Perform the procedure in Table 6-20 to troubleshoot a span line traffic
failure.
Table 6-20: MGLI Control Good – No (or Missing) Span Line Traffic
Step
Action
Visually check all GLI connectors (both board and backplane) for damage.
Replace the remaining GLI with a known good GLI.
Visually check all span line distribution (both connectors and cables) for damage.
If the problem seems to be limited to one BBX, replace the MGLI with a known good MGLI.
Perform the BTS Span Parameter Configuration ( see Table 5-4 on page 5-5).
Ensure that ISB cabling is correct.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-17
C–CCP Backplane Troubleshooting
68P09258A31–A
No (or Missing) MCC Channel Elements
Perform the procedure in Table 6-21 to troubleshoot a channel elements
failure.
Table 6-21: No MCC Channel Elements
Step
Action
Verify MCC channel elements (CEs) are correct. MCCTYPE codes are: MCC8E=0, MCC24E=2,
MCC–1X=3.
If the problem seems to be limited to one MCC, replace the MCC with a known good MCC.
– Check connectors (both board and backplane) for damage.
If no CEs on any MCC:
– Verify clock reference to CIO.
6-18
1X SCt 4812T BTS Optimization/ATP
Oct 2003
C–CCP Backplane Troubleshooting
68P09258A31–A
DC Power Problems
Perform the procedure in Table 6-22 to troubleshoot a DC input voltage
to power supply module failure.
WARNING
Potentially lethal voltage and current levels are routed to the
BTS equipment. This test must be carried out with a second
person present, acting in a safety role. Remove all rings, jewelry,
and wrist watches prior to beginning this test.
No DC Input Voltage to Power Supply Module
Table 6-22: No DC Input Voltage to Power Supply Module
Step
Action
Verify DC power is applied to the BTS frame.
Verify there are no breakers tripped.
* IMPORTANT
If a breaker has tripped, remove all modules from the applicable shelf supplied by the breaker and
attempt to reset it.
– If the breaker trips again, there is probably a cable or breaker problem within the frame.
– If the breaker does not trip, there is probably a defective module or sub–assembly within the shelf.
Verify that the C–CCP shelf breaker on the BTS frame breaker panel is functional.
Use a voltmeter to determine if the input voltage is being routed to the C–CCP backplane by
measuring the DC voltage level on the PWR_IN cable.
– If the voltage is not present, there is probably a cable or breaker problem within the frame.
– If the voltage is present at the connector, reconnect and measure the level at the “VCC” power
feed clip on the distribution backplane.
– If the voltage is correct at the power clip, inspect the clip for damage.
If everything appears to be correct, visually inspect the power supply module connectors.
Replace the power supply module with a known good module.
If steps 1 through 5 fail to indicate a problem, a C–CCP backplane failure (possibly an open trace) has
occurred.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-19
C–CCP Backplane Troubleshooting
68P09258A31–A
No DC Voltage (+5, +6.5, or +15 Volts) to a Specific GLI,
BBX, or Switchboard
Perform the procedure in Table 6-23 to troubleshoot a DC input voltage
to GLI, BBX, or Switchboard failure.
Table 6-23: No DC Input Voltage to any C–CCP Shelf Module
Step
Action
Verify the steps in Table 6-22 have been performed.
Inspect the defective board/module (both board and backplane) connector for damage.
Replace suspect board/module with known good board/module.
TX and RX Signal Routing Problems
Perform the procedure in Table 6-24 to troubleshoot TX and RX signal
routing problems.
Table 6-24: TX and RX Signal Routing Problems
Step
Action
Inspect all Harting Cable connectors and back–plane connectors for damage in all the affected board
slots.
Perform steps in the RF path troubleshooting flowchart in this manual.
6-20
1X SCt 4812T BTS Optimization/ATP
Oct 2003
68P09258A31–A
Module Front Panel LED Indicators and Connectors
Module Front Panel LED Indicators and Connectors
Module Status Indicators
Each of the non-passive plug-in modules has a bi-color (green & red)
LED status indicator located on the module front panel. The indicator is
labeled PWR/ALM. If both colors are turned on, the indicator is yellow.
Each plug-in module, except for the fan module, has its own alarm
(fault) detection circuitry that controls the state of the PWR/ALM LED.
The fan TACH signal of each fan module is monitored by the AMR.
Based on the status of this signal, the AMR controls the state of the
PWR/ALM LED on the fan module.
LED Status Combinations for All Modules (except GLI, CSM, BBX, MCC)
PWR/ALM LED
The following list describes the states of the module status indicator.
S Solid GREEN – module operating in a normal (fault free) condition.
S Solid RED – module is operating in a fault (alarm) condition due to
electrical hardware failure.
Note that a fault (alarm) indication may or may not be due to a complete
module failure and normal service may or may not be reduced or
interrupted.
DC/DC Converter LED Status Combinations
The PWR CNVTR has alarm (fault) detection circuitry that controls the
state of the PWR/ALM LED. This is true for both the C–CCP and LPA
power converters.
PWR/ALM LED
The following list describes the states of the bi-color LED.
S Solid GREEN – module operating in a normal (fault free) condition.
S Solid RED – module is operating in a fault (alarm) condition due to
electrical hardware problem.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-21
Module Front Panel LED Indicators and Connectors
68P09258A31–A
CSM LED Status Combinations
PWR/ALM LED
The CSMs include on-board alarm detection. Hardware and
software/firmware alarms are indicated via the front panel indicators.
After the memory tests, the CSM loads OOS–RAM code from the Flash
EPROM, if available. If not available, the OOS–ROM code is loaded
from the Flash EPROM.
S Solid GREEN – module is INS_ACT or INS_STBY no alarm.
S Solid RED – Initial power up or module is operating in a fault (alarm)
condition.
S Slowly Flashing GREEN – OOS_ROM no alarm.
S Long RED/Short GREEN – OOS_ROM alarm.
S Rapidly Flashing GREEN – OOS_RAM no alarm or INS_ACT in
DUMB mode.
S Short RED/Short GREEN – OOS_RAM alarm.
S Long GREEN/Short RED – INS_ACT or INS_STBY alarm.
S Off – no DC power or on-board fuse is open.
S Solid YELLOW – After a reset, the CSMs begin to boot. During
SRAM test and Flash EPROM code check, the LED is yellow. (If
SRAM or Flash EPROM fail, the LED changes to a solid RED and
the CSM attempts to reboot.)
Figure 6-1: CSM Front Panel Indicators & Monitor Ports
SYNC
MONITOR
PWR/ALM
Indicator
FREQ
MONITOR
FW00303
. . . continued on next page
6-22
1X SCt 4812T BTS Optimization/ATP
Oct 2003
68P09258A31–A
Module Front Panel LED Indicators and Connectors
FREQ Monitor Connector
A test port provided at the CSM front panel via a BNC receptacle allows
monitoring of the 19.6608 MHz clock generated by the CSM. When
both CSM 1 and CSM 2 are in an in-service (INS) condition, the CSM 2
clock signal frequency is the same as that output by CSM 1.
The clock is a sine wave signal with a minimum amplitude of +2 dBm
(800 mVpp) into a 50 Ω load connected to this port.
SYNC Monitor Connector
A test port provided at the CSM front panel via a BNC receptacle allows
monitoring of the “Even Second Tick” reference signal generated by the
CSMs.
At this port, the reference signal is a TTL active high signal with a pulse
width of 153 nanoseconds.
MMI Connector – Only accessible behind front panel. The
RS–232 MMI port connector is intended to be used primarily in
the development or factory environment, but may be used in the
field for debug/maintenance purposes.
GLI2 LED Status Combinations
The GLI2 module has indicators, controls and connectors as described
below and shown in Figure 6-2.
The operating states of the 5 LEDs are:
ACTIVE
Solid GREEN – GLI2 is active. This means that the GLI2 has shelf
control and is providing control of the digital interfaces.
Off – GLI2 is not active (i.e., Standby). The mate GLI2 should be
active.
MASTER
S Solid GREEN – GLI2 is Master (sometimes referred to as MGLI2).
S Off – GLI2 is non-master (i.e., Slave).
ALARM
S Solid RED – GLI2 is in a fault condition or in reset.
S While in reset transition, STATUS LED is OFF while GLI2 is
performing ROM boot (about 12 seconds for normal boot).
S While in reset transition, STATUS LED is ON while GLI2 is
performing RAM boot (about 4 seconds for normal boot).
S Off – No Alarm.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-23
Module Front Panel LED Indicators and Connectors
68P09258A31–A
STATUS
S Flashing GREEN– GLI2 is in service (INS), in a stable operating
condition.
S On – GLI2 is in OOS RAM state operating downloaded code.
S Off – GLI2 is in OOS ROM state operating boot code.
SPANS
S Solid GREEN – Span line is connected and operating.
S Solid RED – Span line is disconnected or a fault condition exists.
GLI2 Pushbuttons and Connectors
RESET Pushbutton – Depressing the RESET pushbutton
causes a partial reset of the CPU and a reset of all board devices.
The GLI2 is placed in the OOS_ROM state
MMI Connector – The RS–232MMI port connector is intended
to be used primarily in the development or factory environment
but may be used in the field for debug/maintenance purposes.
LAN Connectors (A & B) – The two 10BASE2 Ethernet circuit
board mounted BNC connectors are located on the bottom front
edge of the GLI2; one for each LAN interface, A & B. Ethernet
cabling is connected to tee connectors fastened to these BNC
connectors.
6-24
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Module Front Panel LED Indicators and Connectors
68P09258A31–A
Figure 6-2: GLI2 Front Panel
LED
STATUS
STATUS
STATUS LED
RESET
ALARM
RESET
RESET
PUSHBUTTON
SPANS
ALARM LED
ALARM
SPANS LED
SPANS
MASTER
ACTIVE
ACTIVE LED
MMI
MMI PORT
CONNECTOR
MASTER
MASTER LED
OPERATING STATUS
OFF – operating normally
ON – briefly during power-up when the Alarm LED turns
OFF.
SLOW
GREEN
– when
INS (in-service)
All functions
on the
GLI2the
areGLI2
resetiswhen
pressing and
releasing the switch.
OFF – operating normally
ON – briefly during power-up when the Alarm LED turns
OFF.
SLOW GREEN – when the GLI2 is INS (in-service)
OFF – card is powered down, in initialization, or in standby
GREEN – operating normally
YELLOW – one or more of the equipped initialized spans is
receiving a remote alarm indication signal from the far end
RED – one or more of the equipped initialized spans is in an
alarm state
The pair of GLI2 cards include a redundant status. The
card in the top shelf is designated by hardware as the
active card; the card in the bottom shelf is in the standby
mode.
ON – operating normally in active mode
OFF – operating normally in standby mode
MMI PORT
An RS-232, serial, asynchronous communications link for
CONNECTOR use as an MMI port. This port supports 300 baud, up to a
maximum of 115,200 baud communications.
ACTIVE
Shows the operating status of the redundant cards. The
redundant card toggles automatically if the active card is
removed
or fails
ON
– active
card operating normally
OFF – standby card operating normally
FW00225
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-25
Module Front Panel LED Indicators and Connectors
68P09258A31–A
GLI3 Front Panel
Figure 6-3 shows the GLI3 front panel.
Figure 6-3: GLI3 Front Panel
LED
BPR A
BPR B
AUX
1X SCt 4812T BTS Optimization/ATP
Span (LED)
Alarm (LED)
MMI Port
ACT
6-26
STA
ACTIVE
OFF – operating normally
ON – briefly during power-up when the Alarm LED turns
OFF
SLOW
– when
the GLI3
INS (in-service)
Shows GREEN
the operating
status
of theisredundant
cards. The
redundant card toggles automatically if the active card is
removed
or fails
ON
– active
card operating normally
OFF – standby card operating normally
Reset Switch
SPAN
STATUS
Dual 100BASE–T
in a single RJ45
to Redundant
(Mate) GLI3
MMI
ALARM
RESET
MMI
100BASE–T
Auxiliary Monitor
Port
GLI
Span
Pressing and releasing the switch resets all functions on
the GLI3.
OFF – operating normally
ON – briefly during power-up when the Alarm LED turns
OFF
SLOW
GREEN
– when down,
the GLI3
is INS (in-service)
OFF – card
is powered
in initialization,
or in standby
GREEN – operating normally
YELLOW – one or more of the equipped initialized spans is
receiving a remote alarm indication signal from the far end
RED – one or more of the equipped initialized spans is in an
alarm state
An RS-232, serial, asynchronous communications link for
use as an MMI port. This port supports 300 baud, up to a
maximum of 115,200 baud communications.
100BASE–T to
BTS Packet Router
or Expansion cage
AUX
ALARM
Wired as an ethernet client for direct connection to a personal
computer with a standard ethernet cable. It allows connection
of ethernet “sniffer” when the ethernet switch is properly
configured for port monitoring.
Supports the cross–coupled ethernet circuits to the mate GLI
using a double crossover cable.
BPR B
RESET
Connects to either a BPR or expansion cage and is wired as
an ethernet client.
Connects to either a BPR or expansion cage and is wired as
an ethernet client.
BPR A
GLI
OPERATING STATUS
Active (LED)
Status (LED)
ti-CDMA-WP-00064-v01-ildoc-ftw
Oct 2003
68P09258A31–A
Module Front Panel LED Indicators and Connectors
BBX LED Status Combinations
PWR/ALM LED
The BBX module has its own alarm (fault) detection circuitry that
controls the state of the PWR/ALM LED.
The following list describes the states of the bi-color LED:
S Solid GREEN – INS_ACT no alarm
S Solid RED Red – initializing or power-up alarm
S Slowly Flashing GREEN – OOS_ROM no alarm
S Long RED/Short GREEN – OOS_ROM alarm
S Rapidly Flashing GREEN – OOS_RAM no alarm
S Short RED/Short GREEN – OOS_RAM alarm
S Long GREEN/Short RED – INS_ACT alarm
MCC LED Status Combinations
The MCC module has LED indicators and connectors as described
below (see Figure 6-4). Note that the figure does not show the
connectors as they are concealed by the removable lens.
The LED indicators and their states are as follows:
PWR/ALM LED
S RED – fault on module
ACTIVE LED
S Off – module is inactive, off-line, or not processing traffic.
S Slowly Flashing GREEN – OOS_ROM no alarm.
S Rapidly Flashing Green – OOS_RAM no alarm.
S Solid GREEN – module is INS_ACT, on-line, processing traffic.
PWR/ALM and ACTIVE LEDs
S Solid RED – module is powered but is in reset or the BCP is inactive.
MMI Connectors
S The RS–232 MMI port connector (four-pin) is intended to be used
primarily in the development or factory environment but may be used
in the field for debugging purposes.
S The RJ–11 ethernet port connector (eight-pin) is intended to be used
primarily in the development environment but may be used in the field
for high data rate debugging purposes.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-27
Module Front Panel LED Indicators and Connectors
68P09258A31–A
Figure 6-4: MCC Front Panel
PWR/ALM
PWR/ALM LED
LED
COLOR
OFF – operating normally
ON – briefly during power-up and during
failure conditions
An alarm is generated in the event of a failure
PWR/ALM
LENS
(REMOVABLE)
ACTIVE
RED
GREEN
RED
ACTIVE
ACTIVE LED
OPERATING STATUS
RAPIDLY BLINKING – Card is
code-loaded but not enabled
SLOW BLINKING – Card is not
code-loaded
ON – card is code-loaded and enabled
ON(INS_ACTIVE)
– fault condition
SLOW FLASHING (alternating with green)
– CHI bus inactive on power-up
FW00224
LPA Shelf LED Status Combinations
LPA Module LED
Each LPA module contains a bi–color LED just above the MMI
connector on the front panel of the module. Interpret this LED as
follows:
S GREEN — LPA module is active and is reporting no alarms (Normal
condition).
S Flashing GREEN/RED — LPA module is active but is reporting an
low input power condition. If no BBX is keyed, this is normal and
does not constitute a failure.
6-28
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Basic Troubleshooting – Span Control Link
68P09258A31–A
Basic Troubleshooting – Span Control Link
Span Problems (No Control Link)
Perform the procedure in Table 6-25 to troubleshoot a control link
failure.
Table 6-25: Troubleshoot Control Link Failure
n Step
Action
Connect the CDMA LMF computer to the MMI port on the applicable MGLI/GLI as shown in
Figure 6-5 or Figure 6-6.
Start an MMI communication session with the applicable MGLI/GLI by using the Windows
desktop shortcut icon.
Once the connection window opens, press the CDMA LMF computer Enter key until the GLI>
prompt is obtained.
At the GLI> prompt, enter:
config ni current  (equivalent of span view command)
The system will respond with a display similar to the following:
The frame format in flash
Equalization:
Span A – Default (0–131
Span B – Default (0–131
Span C – Default (0–131
Span D – Default (0–131
Span E – Default (0–131
Span F – Default (0–131
is set to use T1_2.
feet
feet
feet
feet
feet
feet
for
for
for
for
for
for
T1/J1,
T1/J1,
T1/J1,
T1/J1,
T1/J1,
T1/J1,
120
120
120
120
120
120
Ohm
Ohm
Ohm
Ohm
Ohm
Ohm
for
for
for
for
for
for
E1)
E1)
E1)
E1)
E1)
E1)
Linkspeed: Default (56K for T1 D4 AMI, 64K otherwise)
Currently, the link is running at the default rate
The actual rate is 0
NOTE
Defaults for span equalization are 0–131 feet for T1/J1 spans and 120 Ohm for E1.
Default linkspeed is 56K for T1 D4 AMI spans and 64K for all other types.
There is no need to change from defaults unless the OMC–R/CBSC span configuration requires it.
The span configurations loaded in the GLI must match those in the OMCR/CBSC database for the
BTS. If they do not, proceed to Table 6-26.
Repeat steps 1 through 5 for all remaining GLIs.
If the span settings are correct, verify the edlc parameters using the show command.
Any alarm conditions indicate that the span is not operating correctly.
S Try looping back the span line from the DSX panel back to the MM, and verify that the looped
signal is good.
S Listen for control tone on the appropriate timeslot from the Base Site and MM.
Exit the GLI MMI session and HyperTerminal connection by selecting File from the connection
window menu bar, and then Exit from the drop–down menu.
If no TCHs in groomed MCCs (or in whole C–CCP shelf) can process calls, verify that the ISB
cabling is correct and that ISB A and ISB B cables are not swapped.
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-29
Basic Troubleshooting – Span Control Link
68P09258A31–A
Figure 6-5: MGLI/GLI Board MMI Connection Detail
STATUS LED
RESET
Pushbutton
GLI
ALARM LED
SPANS LED
MASTER LED
To MMI port
MMI Port
Connector
ACTIVE LED
8–PIN
NULL MODEM
BOARD
(TRN9666A)
8–PIN TO 10–PIN
RS–232 CABLE
(P/N 30–09786R01)
CDMA LMF
COMPUTER
RS–232
CABLE
COM1 or COM2
DB9–TO–DB25
ADAPTER
ti-CDMA-WP-00079-v01-ildoc-ftw
6-30
1X SCt 4812T BTS Optimization/ATP
Oct 2003
Basic Troubleshooting – Span Control Link
68P09258A31–A
Figure 6-6: GLI3 Board MMI Connection Detail
BPR A
BPR B
100BASE–T to
BTS Packet Router
or Expansion cage
AUX
100BASE–T
Auxiliary Monitor
Port
GLI
Dual 100BASE–T
in a single RJ45
to Redundant
(Mate) GLI3
Reset Switch
SPAN
Span (LED)
Alarm (LED)
MMI Port
MMI
To MMI port
ALARM
RESET
GLI3
ACT
STA
Active (LED)
Status (LED)
NULL MODEM
BOARD
(TRN9666A)
8–PIN
CDMA LMF
COMPUTER
8–PIN TO 10–PIN
RS–232 CABLE
(P/N 30–09786R01)
RS–232
CABLE
COM1 or COM2
DB9–TO–DB25
ADAPTER
REF ti-CDMA-WP-00064-v01-ildoc-ftw
Oct 2003
1X SCt 4812T BTS Optimization/ATP
6-31
Basic Troubleshooting – Span Control Link
68P09258A31–A
Set BTS Site Span Configuration
Table 6-26 describes how to set the span parameter configuration.
NOTE
Perform the following procedure ONLY if span configurations
loaded in the MGLI/GLIs do not match those in the
OMCR/CBSC data base, AND ONLY when the exact
configuration data is available. Loading incorrect span
configuration data will render the site inoperable.
Table 6-26: Set BTS Span Parameter Configuration
n Step
Action
If not previously done, connect the CDMA LMF computer to the MMI port on the applicable
MGLI/GLI as shown in Figure 6-5.
If there is no MMI communication session in progress with the applicable MGLI/GLI, initiate one
by using the Windows desktop shortcut icon.
At the GLI> prompt, enter:
config ni format

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Modify Date                     : 2003:11:06 11:52:06-06:00
Create Date                     : 2003:11:06 11:47:19-06:00
Title                           : 1X SC4812T BTS Optimization/ATP; Release 2.16.3.x
Author                          : Motorola
Producer                        : Acrobat Distiller 6.0 (Windows)
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