Nokia Solutions and Networks T6EF1, T5DS1 Users Manual

Download

Bay Level Offset Calibration68P09258A31–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

1 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.

2 If it has not already been done, refer to Table 3-6 (on page 3-26) to start a GUI LMF session.

3 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.

4 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 CDF file parameter and the power is specified in the SIFPilotPwr CDF file parameter for the sector associated with the BBX (located

ParentSECTOR field of the ParentCARRIER CDF file

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.

NOTE

under the parameter).

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.

ChannelList

Oct 2003

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.

1X SCt 4812T BTS Optimization/ATP

3-89

Bay Level Offset Calibration

68P09258A31–A

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.

3-90

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.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Bay Level Offset Calibration68P09258A31–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:

Set-up for TX Calibration

n Step Action

1 Delete the existing calibration file (if any) from the BTS folder on LMF

2 To edit the nominal TX BLO, from the Util menu, select Edit > TX

– PilotGain

– PchGain

– SchGain

– NomGain1Way

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

laptop from the location C:\wlmf\cdma\bts–#, where # is the BTS number.

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).

Oct 2003

3 Download the data, which includes BLO values, to all the BBXs. From the

Device menu, select Download > Data

1X SCt 4812T BTS Optimization/ATP

3-91

Bay Level Offset Calibration

TX Calibration

68P09258A31–A

WARNING

CAUTION

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.

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 Action

1 If it has not already been done, configure test equipment for TX calibration by following the

procedure in Table 3-35.

2 Click on the BBX(s) to be calibrated.

3 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

3-92

1X SCt 4812T BTS Optimization/ATP

Oct 2003

n ActionStep

4 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.

Bay Level Offset Calibration68P09258A31–A

Table 3-37: All Cal/Audit and TX Calibration Procedure

7 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.

8 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

Oct 2003

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.

1X SCt 4812T BTS Optimization/ATP

3-93

Bay Level Offset Calibration

Download BLO Procedure

68P09258A31–A

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.

NOTE

Prerequisites

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.

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

1 Select the BBX(s) to be downloaded.

2 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.

3 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

1X SCt 4812T BTS Optimization/ATP

RF path verification, BLO calibration, and BLO data download to BBXs must have been successfully completed prior to performing the calibration audit.

Oct 2003

TX Path Audit

Bay Level Offset Calibration68P09258A31–A

Perform the calibration audit of the TX paths of all equipped BBX slots per the procedure in Table 3-39

TX Audit Test

WARNING

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.

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:

S CSM–1, GLIs, and BBXs have correct code load and data load. S Primary CSM and MGLI are INS. S All BBXs are OOS_RAM.

S Test equipment and test cables are calibrated and connected for TX

BLO calibration.

S LMF is logged into the BTS.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-95

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

1 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).

2 Select the BBX(s) to be audited.

3 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).

4 Click Tests in the BTS menu bar, and select TX>TX Audit... from the pull–down menus. A

CDMA Test Parameters window will appear.

5 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).

6 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.

7 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.

8 Select Verify BLO (default) or Single–sided BLO.

NOTE

Single–sided BLO is only used when checking non–redundant transceivers.

9 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.

3-96

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.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

All Cal/Audit Test

Bay Level Offset Calibration68P09258A31–A

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

WARNING

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:

S CSM–1, GLIs, BBXs have correct code and data loads. S Primary CSM and MGLI are INS. S All BBXs are OOS_RAM. S 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.

Table 3-40: All Cal/Audit Test

n Step Action

1 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.

2 From the Tests menu, select All Cal/Audit.

3 Select the appropriate carrier(s) displayed in the Channels/Carrier pick list.

Press and hold the <Shift> or <Ctrl> key to select multiple items.

4 Type the appropriate channel number in the Carrier n Channels box.

5 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.

6 Select Verify BLO or Single–sided BLO.

NOTE

Single–sided BLO is only used when checking non–redundant transceivers.

7 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).

8 Click on OK.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

. . . continued on next page

3-97

Bay Level Offset Calibration

n ActionStep

9 Follow the cable connection directions as they are displayed. A status report window displays the

test results.

10 Click on Save Results or Dismiss to close the status report window.

Create CAL File

68P09258A31–A

Table 3-40: All Cal/Audit Test

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.

3-98

Creating a CAL File

Table 3-41: Create CAL File

n Step Action

1 Select the applicable BBXs.

NOTE

The CAL file is only updated for the selected BBXs.

2 Click on the Device menu.

3 Click on the Create Cal File menu item. A status report

window displays the results of the action.

4 Click OK to close the status report window.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

RFDS Set–up and Calibration

RFDS Description

RFDS Set–up and Calibration68P09258A31–A

NOTE

RFDS Parameter Settings

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.

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

NOTE

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.)

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.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-99

RFDS Set–up and Calibration

68P09258A31–A

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

1 Important! Log out of the BTS prior to performing this procedure.

2 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.

3 Save changes and/or quit the editor.

4 Log into the BTS using an LMF GUI session (refer to Table 3-6).

5 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.

6 When changes are made to RFDS parameters in the bts–#.cdf file, data must be downloaded to the

MGLI by performing the following:

6a – 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. 6b – Click on the MGLI.

6c – 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. 6d – When the operation is complete, click OK to close the status report window.

6e – Click on the MGLI (now OOS_RAM (yellow)).

6f – 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. 6g – Click OK to close the status report window.

6h – Click on the MGLI.

. . . continued on next page

3-100

1X SCt 4812T BTS Optimization/ATP

Oct 2003

RFDS Set–up and Calibration68P09258A31–A

Table 3-42: RFDS Parameter Settings

Step Action

6i – 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.

! 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.

6l – 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.

7 Any MCCs that were INS_ACT when the MGLI was disabled must be disabled, downloaded with

data, and re–enabled as follows:

7a – 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. 7b – 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. 7c – Click OK to close the status report window.

7d – Repeat Step 7a to select the MCCs.

7e – 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. 7f – Click on OK to close the status report window.

7g – When data download is complete, enable the MCCs by following the procedure in Table 3-17.

8 Click on the RFDS tab.

9 Status the RFDS TSU by performing the following:

9a – Click on the SUA to select it.

9b – 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.

9c – Click OK to close the status report window.

NOTE

If the LMF displays an error message, check the following:

S Ensure AMR cable is correctly connected from the BTS to the RFDS. S Verify RFDS has power. S Verify RFDS status LED is green. S Verify entries in RFDS fields of the bts–#.cdf file are correct (refer to Step 2). S Status the MGLI and ensure it is communicating (by Ethernet) with the LMF, and is in the proper

state (INS_ACT (bright green)).

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-101

RFDS Set–up and Calibration

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.

68P09258A31–A

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

Primary_Channel_A Primary_Channel_B Secondary_Channel_A Secondary_Channel B

Lock_Code Security_Code Service_Level Station_Class_Mark

IMSI_11_12 IMSI_MCC

These parameters are obtained from the switch.

These parameters are the channels used in operation of the system.

Do not change.

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.

3-102

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Valid NAM Ranges

RFDS Set–up and Calibration68P09258A31–A

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

NAM Field Name

Minimum Maximum

Access_Overload_Code 0 15

Slot_Index 0 7

System ID 0 32767

Network ID 0 32767

Primary_Channel_A 25 1175

Primary_Channel_B 25 1175

Secondary_Channel_A 25 1175

Secondary_Channel_B 25 1175

Lock_Code 0 999

Security_Code 0 999999

Service_Level 0 7

Station_Class_Mark 0 255

IMSI_11_12 0 99

IMSI_MCC 0 999

MIN Phone Number N/A N/A

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

Step Action

1 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.

2 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.

RFDS.

Table 3-45: Set Antenna Map Data

3 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.

5 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.

3-104

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

RFDS Set–up and Calibration68P09258A31–A

NOTE

Follow the procedure in Table 3-46 to set the RFDS Configuration Data.

Table 3-46: Set RFDS Configuration Data

Step Action

1 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.

2 In the data entry pop–up window, click on the TX RFDS Configuration or RX RFDS Configuration

tab, as required.

3 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.

4 To edit existing values, click in the data box to be changed and change the value.

The entered antenna# index numbers must correspond to the antenna# index numbers used in the antenna maps.

NOTE

Refer to the CDMA Help > Utility Menu > Edit–RFDS Configuration... section of LMF Help function on–line documentation for RFDS configuration data examples.

5 To delete a row, click on the row and then click on the Delete Row button.

6 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.

WARNING

Prerequisites

S Test equipment has been selected.

Table 3-47: RFDS TSIC Calibration Channel Frequencies

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.

3-106

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.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

RFDS Set–up and Calibration68P09258A31–A

RFDS Calibration Procedure

Follow the procedure in Table 3-48 to perform RFDS calibration.

Table 3-48: RFDS Calibration Procedure

Step Action

1 In the LMF, select the CDMA BTS–xxx tab.

2 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.

3 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).

4 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.

5 In the Tests to Perform box, select TX Calibration or RX Calibration, as required

6 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.

7 If the frame is equipped with TX combiners, click in the Has Combiners checkbox.

8 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)).

9 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

3-107

RFDS Set–up and Calibration

Program TSU NAM

68P09258A31–A

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.

Step Action

1 Select the RFDS tab.

2 Select the SUA (Cobra RFDS) or TSU (GLI based RFDS).

3 Click on TSU in the BTS menu bar, and select Program TSU NAM from the pull–down menu. A

NAM programming window will appear.

4 Enter the appropriate information in the boxes (see Table 3-43 and Table 3-44).

5 Click on the OK button to display the status report.

6 Click on the OK button to close the status report window.

Program NAM Procedure

Follow the procedure in Table 3-49 to program the TSU NAM.

Table 3-49: Program the TSU NAM

3-108

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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.

BTS Redundancy/Alarm Testing68P09258A31–A

Test Equipment

Redundancy/Alarm Test

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.

S Table 3-52. Miscellaneous Alarm Tests (BTS Frame) S Table 3-53. BBX Redundancy Tests (BTS Frame) S Table 3-54. CSM, GPS, & LFR/HSO Redundancy Alarm Tests S Table 3-55. PA Redundancy Test S 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.

The following pieces of test equipment are required to perform this test:

S LMF S Communications Test Set

Oct 2003

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:

S Power supply/converter modules in all frames S Distribution shelf modules in the BTS frame S C–CCP shelf modules in the BTS frame (except MCCs) S PA modules in the BTS frame S AMR Customer defined input/output tests

1X SCt 4812T BTS Optimization/ATP

3-109

BTS Redundancy/Alarm Testing

Test Equipment Setup

68P09258A31–A

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

1 Interface the LMF computer to the BTS LAN A connector on

the BTS frame (refer to Table 3-5, page 3-17).

2 Login to the BTS.

3 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.

4 Display the alarm monitor by selecting Util>Alarm Monitor.

5 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.

3-110

1X SCt 4812T BTS Optimization/ATP

Oct 2003

BTS Redundancy/Alarm Testing68P09258A31–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

1 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

2 Select (highlight) BBX–1 and from the pulldown menu select Device>BBX/MAWI>Key.

3 Set XCVR gain to 40 and enter the correct XCVR channel number.

4 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.

5 Re-install PS–1.

Observe the alarm clears on the alarm monitor.

6 Repeat steps 4 and 5 for PS–2 and PS–3.

NOTE

For +27 V systems, skip to step 7 through step 10.

7 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.

8 Re-install PS–4.

Observe the alarm clears on the alarm monitor.

9 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

Figure 3-27: SC 4812T C–CCP Shelf

PS–1

19 mm Filler Panel

PS–2

PS–3

AMR–1

GLI2–1GLI2–2

MCC–1

MCC–2

MCC–3

MCC–4

MCC–5

MCC–6

BBX–2

BBX2–1

BBX–3

BBX–4

BBX–5

BBX–6

BBX–RSwitch

MPC/EMPC–1MPC/EMPC–2

CIO

CSM–1

HSO/LFR

CSM–2

CCD–2 CCD–1

AMR–2

38 mm Filler Panel

MCC–7

MCC–8

MCC–9

MCC–10

Figure 3-28: –48 V BTS Power Conversion Shelf

REAR

FRONT

AMR

PS–4

FAN

MODULE

PWR/ALM

PS–5

PS–6

REAR

FRONT

PS–7

FAN

MODULE

PWR/ALM

PS–8

PS–9

MCC–11

BBX–7

MCC–12

BBX–8

BBX–9

BBX–11

BBX–10

BBX–12

L P

NOTE: MCCs may be MCC8Es, MCC24s, or MCC–1Xs. BBXs may be BBX2s or BBX–1Xs. GLIs may be GLI2s or GLI3s.

FW00295

3-112

1X SCt 4812T BTS Optimization/ATP

FW00501

Oct 2003

BTS Redundancy/Alarm Testing68P09258A31–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

1 Select Util>Alarm Monitor to display the alarm monitor window.

2 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.

3 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.

4 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.

5 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

Figure 3-29: +27 V BTS C-CCP Fan Modules

LATCHES

68P09258A31–A

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

FAN MODULES

FW00130

Figure 3-30: –48 V BTS C-CCP and Power Conversion Shelf Fan Modules

LATCHES

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

BBX Redundancy

3-114

FAN MODULES

LATCHES

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

FW00489

FAN MODULES

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.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

BTS Redundancy/Alarm Testing68P09258A31–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.

1 Enable the primary, then the redundant BBX assigned to ANT 1 by selecting the BBX and

Device>BBX/MAWI>Key.

2 Observe that primary BBXs key up, and a carrier is present at each respective frequency.

3 Remove the primary BBX.

4 Observe a carrier is still present.

The Redundant BBX is now the active BBX for Antenna 1.

5 Replace the primary BBX and reload the BBX with code and data.

6 Re-enable the primary BBX assigned to ANT 1 and observe that a carrier is present at each respective

frequency.

7 Remove the redundant BBX and observe a carrier is still present.

8 The Primary BBX is now the active BBX for ANT 1.

9 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

1X SCt 4812T BTS Optimization/ATP

3-115

BTS Redundancy/Alarm Testing

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.

68P09258A31–A

NOTE

Table 3-54: CSM, GPS, & LFR/HSO, Redundancy/Alarm Tests

Step Action

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.

n WARNING

1 Enable the primary, then the redundant BBXs assigned to ANT 1 by selecting the BBX and

Device>BBX/MAWI>Key.

2 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.

3 Observe a CDMA timing reference alarm and source change is reported by the alarm monitor.

4 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.

5 Reconnect the GPS antenna cable.

6 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.

7 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.

8 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.

9 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

3-116

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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 Disable the primary and redundant BBXs.

BTS Redundancy/Alarm Testing68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-117

BTS Redundancy/Alarm Testing

Power Amplifier (PA) Redundancy Test

Follow the procedure in Table 3-55 to verify redundancy of the Power Amplifiers (PA).

68P09258A31–A

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

1 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

2 Key-up the BBX assigned to the PAs associated with the sector under test (gain = 40).

3 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.

4 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.

5 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.

6 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.

7 Repeat Steps 4 through 6 to verify the 2nd PA of the pair.

8 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.

9 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.

3-118

1X SCt 4812T BTS Optimization/ATP

Oct 2003

MGLI/GLI Redundancy Test

BTS Redundancy/Alarm Testing68P09258A31–A

CAUTION

Table 3-56: MGLI/GLI Redundancy Test (with MM Connection Established)

Step Action

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.

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.

1 Verify the BBXs are enabled and a CDMA carrier is present.

2 Identify the primary and redundant MGLI pairs.

3 Pull the MGLI that is currently INS–ACT and has cage control.

4 Observe the BBX remains GREEN, and the redundant MGLI is now active.

5 Verify no other modules go OOS due to the transfer of control to the redundant module.

6 Verify that the BBXs are enabled and a CDMA carrier is present.

7 Reinstall the MGLI and have the OMCR/CBSC place it back in-service.

8 Repeat Steps 1 through 7 to verify the other MGLI/GLI board.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-119

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 <Ctrl> key (for individual selections) or <Shift> 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.

3-120

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Figure 3-31: Alarm Connector Location and Connector Pin Numbering

Alarms Testing68P09258A31–A

ti-CDMA-WP-00041-v01-ildoc-ftw

Purpose

Test Equipment

NOTE

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.

Motorola highly recommends that you read and understand this procedure in its entirety before starting this procedure.

The following test equipment is required to perform these tests:

S LMF S Alarms Test Box (CGDSCMIS00014) –optional

NOTE

Oct 2003

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

1X SCt 4812T BTS Optimization/ATP

3-121

Alarms Testing

Figure 3-32: AMR Connector Pin Numbering

68P09258A31–A

A CDI 18 . . . A CDI 1

60 2

59 1

60 2

59 1

ALARM A

Returns

(AMR 1)

NOTE

B CDI 36 . . . B CDI 19

The preferred method to verify alarms is to follow the Alarms

Returns

ALARM B

(AMR 2)

FW00302

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

1 Connect the LMF to the BTS and log into the BTS.

2 Select the MGLI.

3 Click on the Device menu.

4 Click on the Set Alarm Relays menu item.

5 Click on Normally Open.

A status report window displays the results of the action.

6 Click on the OK button to close the status report window.

7 Set all switches on the alarms test box to the Open position.

8 Connect the alarms test box to the ALARM A connector (see Figure 3-31).

9 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

3-122

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Alarms Testing68P09258A31–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

Oct 2003

1X SCt 4812T BTS Optimization/ATP

3-123

Alarms Testing

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.

68P09258A31–A

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

Table 3-58: CDI Alarm Input Verification Without the Alarms Test Box

Step Action

1 Connect the LMF to the BTS and log into the BTS.

2 Select the MGLI.

3 Click on the Device menu.

4 Click on the Set Alarm Relays menu item.

5 Click on Normally Open.

A status report window displays the results of the action.

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.

6 Click on OK to close the status report window.

7 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.

8 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.

9 Select the MGLI.

10 Click on the Device menu.

11 Click on the Set Alarm Relays menu item.

. . . continued on next page

3-124

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Alarms Testing68P09258A31–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

1X SCt 4812T BTS Optimization/ATP

3-125

Alarms Testing

Wire

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

68P09258A31–A

Signal Name

Color

1 Blu/Wht A CDO1 NC B CDO9 NC 31 Blu/Yel Cust Retn 4 B CDI 22

2 Wht/Blu A CDO1 Com B CDO9 Com 32 Yel/Blu A CDI 4 Cust Retn 22

3 Org/Wht A CDO1 NO B CDO9 NO 33 Org/Yel Cust Retn 5 B CDI 23

4 Wht/Org A CDO2 NC B CDO10 NC 34 Yel/Org A CDI 5 Cust Retn 23

5 Grn/Wht A CDO2 Com B CDO10 Com 35 Grn/Yel Cust Retn 6 B CDI 24

6 Wht/Grn A CDO2 NO B CDO10 NO 36 Yel/Grn A CDI 6 Cust Retn 24

7 Brn/Wht A CDO3 NC B CDO11 NC 37 Brn/Yel Cust Retn 7 B CDI 25

8 Wht/Brn A CDO3 Com B CDO11 Com 38 Yel/Brn A CDI 7 Cust Retn 25

9 Slt/Wht A CDO3 NO B CDO11 NO 39 Slt/Yel Cust Retn 8 B CDI 26

10 Wht/Slt A CDO4 NC B CDO12 NC 40 Yel/Slt A CDI 8 Cust Retn 26

11 Blu/Red A CDO4 Com B CDO12 Com 41 Blu/Vio Cust Retn 9 B CDI 27

12 Red/Blu A CDO4 NO B CDO12 NO 42 Vio/Blu A CDI 9 Cust Retn 27

13 Org/Red A CDO5 NC B CDO13 NC 43 Org/Vio Cust Retn 10 B CDI 28

14 Red/Org A CDO5 Com B CDO13 Com 44 Vio/Blu A CDI 10 Cust Retn 28

15 Grn/Red A CDO5 NO B CDO13 NO 45 Grn/Vio Cust Retn 11 B CDI 29

16 Red/Grn A CDO6 NC B CDO14 NC 46 Vio/Grn A CDI 11 Cust Retn 29

17 Brn/Red A CDO6 Com B CDO14 Com 47 Brn/Vio Cust Retn 12 B CDI 30

18 Red/Brn A CDO6 NO B CDO14 NO 48 Vio/Brn A CDI 12 Cust Retn 30

19 Slt/Red A CDO7 NC B CDO15 NC 49 Slt/Vio Cust Retn 13 B CDI 31

20 Red/Slt A CDO7 Com B CDO15 Com 50 Vio/Slt A CDI 13 Cust Retn 31

21 Blu/Blk A CDO7 NO B CDO15 NO 51 Red/Wht Cust Retn 14 B CDI 32

22 Blk/Blu A CDO8 NC B CDO16 NC 52 Wht/Red A CDI 14 Cust Retn 32

23 Org/Blk A CDO8 Com B CDO16 Com 53 Blk/Wht Cust Retn 15 B CDI 33

24 Blk/Org A CDO8 NO B CDO16 NO 54 Wht/Blk A CDI 15 Cust Retn 33

25 Grn/Blk Cust Retn 1 B CDI 19 55 Yel/Wht Cust Retn 16 B CDI 34

26 Blk/Grn A CDI 1 Cust Retn 19 56 Wht/Yel A CDI 16 Cust Retn 34

27 Brn/Blk Cust Retn 2 B CDI 20 57 Vio/Wht Cust Retn 17 B CDI 35

28 Blk/Brn A CDI 2 Cust Retn 20 58 Wht/Vio A CDI 17 Cust Retn 35

29 Slt/Blk Cust Retn 3 B CDI 21 +27V

30 Blk/Slt A CDI 3 Cust Retn 21 +27V

Alarm A Alarm B

*Pwr Conv Alm –48V

*Pwr Conv Retn –48V

Color

59 Blk/Red Cust Retn 18 B CDI 36

60 Red/Blk A CDI 18 Cust Retn 36

Alarm A Alarm B

Signal Name

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)

3-126

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Reduced ATP

Automated Acceptance Test Procedures68P09258A31–A

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.

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.

NOTE

ATP Testing Option 3

These tests can be run individually:

S TX Mask test S Rho test S Pilot Time Offset test S Code Domain Power test S FER test

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.

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.

The STOP button can be used to stop the testing process.

4-4

1X SCt 4812T BTS Optimization/ATP

Oct 2003

ATP Test Prerequisites

Automated Acceptance Test Procedures68P09258A31–A

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.

S Primary CSM, GLI, and MCCs are INS_ACT (bright green). S BBXs are calibrated and BLOs are downloaded. S No BBXs are keyed (transmitting). S BBXs are OOS_RAM (yellow). S Test cables are calibrated. S 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.

TX OUT Connection

WARNING

NOTE

S BTS transmit connectors are properly terminated for the test(s) to be

performed.

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.

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.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

4-5

Automated Acceptance Test Procedures

Required Test Equipment

The following test equipment is required:

S LMF S Power meter (used with HP8921A/600 and Advantest R3465) S Communications system analyzer S Signal generator for FER testing (required for all communications

system analyzers for 1X FER)

68P09258A31–A

WARNING

NOTE

– 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.

4-6

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Individual Acceptance Tests

Automated Acceptance Test Procedures68P09258A31–A

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 at the CDF file–specified carrier output power level.

bbxlevel and BLO)

RX Testing

Individual Tests

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.

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).

Oct 2003

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 power).

1X SCt 4812T BTS Optimization/ATP

< –27 dB (with respect to total CDMA channel

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 Procedures68P09258A31–A

ATP Test Procedure

Follow the procedure in Table 4-1 to perform any ATP test.

Table 4-1: ATP Test Procedure

Step Action

1 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.

2 Select the device(s) to be tested.

3 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...

4 Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick

list. To select multiple items, hold down the <Shift> or <Ctrl> key while making the selections.

NOTE

If necessary, the correct channel number may be manually entered into the Carrier # Channels box.

6 If applicable, select Verify BLO (default) or Single–sided BLO.

NOTE

Single–sided BLO is only used when checking non–redundant transceivers.

7 For RX select the appropriate RX branch (Both, Main, or Diversity) in the drop–down list.

8 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.

9 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).

Oct 2003

NOTE

The channel element numbers are 0 based; that is the first channel element is 0.

. . . continued on next page

1X SCt 4812T BTS Optimization/ATP

4-9

Automated Acceptance Test Procedures

Table 4-1: ATP Test Procedure

Step Action

10 If applicable, select a test pattern from the Test Pattern pick list.

68P09258A31–A

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 Information68P09258A31–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

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.

Oct 2003

See Table 4-1 to perform this test.

1X SCt 4812T BTS Optimization/ATP

4-11

Individual ATP Test Background Information

Figure 4-1: TX Mask Verification Spectrum Analyzer Display

68P09258A31–A

.5 MHz Span/Div

Ampl 10 dB/Div

– 1980 kHz

– 900 kHz

– 750 kHz

Mean CDMA Bandwidth

Power Reference

+ 900 kHz

+750 kHz

Center Frequency Reference

Attenuation level of all spurious and IM products with respect to the mean power of the CDMA channel

+ 1980 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.

4-12

See Table 4-1 to perform this test.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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.

Individual ATP Test Background Information68P09258A31–A

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 $

measures v

2 dB and that the noise floor of all “OFF” Walsh channels

–27 dB (with respect to total CDMA channel power).

Oct 2003

NOTE

1X SCt 4812T BTS Optimization/ATP

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.

4-13

Individual ATP Test Background Information

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

68P09258A31–A

Pilot Channel

MAX OCNS CHANNEL

Active channels

MIN OCNS CHANNEL

MAX NOISE FLOOR

8.2 dB 12.2 dB

Inactive channels

Walsh 0 1 2 3 4 5 6 7 ... 64

PILOT LEVEL

MAX OCNS SPEC.

MIN OCNS SPEC.

MAXIMUM NOISE FLOOR:

< –27 dB SPEC.

Showing all OCNS Passing

Pilot Channel

FAILURE – EXCEEDS MAX OCNS SPEC.

8.2 dB 12.2 dB

Active channels

PILOT LEVEL

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 ... 64

Indicating Failures

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

FW00283

4-14

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Individual ATP Test Background Information68P09258A31–A

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:

S Test name S BBX number S Channel number

S Carrier number S Sector number S Upper test limit S Lower test limit S Test result S PASS or FAIL S Description information (if applicable) S Time stamp S 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 Action

1 Click on the Login tab (if not in the forefront).

2 Select the desired BTS from the available Base Station

pick list.

3 Click on the Report button.

4 Click on a column heading to sort the report.

4-16

5 – 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

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.

68P09258A31–A

Copying CAL files from LMF to a Diskette

Follow the procedures in Table 5-1 to copy the CAL files from an LMF

Step Action

1 With Windows running on the LMF computer, insert a disk into Drive A:\.

2 Launch the Windows Explorer application program from the Start > Programs menu list.

3 Select the applicable <x>:\<lmf home directory/cdma/bts–# folder.

4 Drag the bts–#.cal file to Drive A.

5 Repeat Steps 3 and 4, as required, for other bts–# folders.

computer to a 3.5 diskette.

Table 5-1: Copying CAL Files to a Diskette

5-2

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Updating Calibration Data Files68P09258A31–A

Copying CAL Files from Diskette to the CBSC

Follow the procedure in Table 5-2 to copy CAL files from a diskette to the CBSC.

Table 5-2: Procedures to Copy CAL Files from Diskette to the CBSC

Step Action

1 Log into the CBSC on the OMC–R Unix workstation using your account name and password.

2 Place the diskette containing calibration files (cal files) in the workstation diskette drive.

3 Type eject –q and press the Enter key.

4 Type mount and press the Enter key. Verify that floppy/no_name is displayed.

NOTE

If the eject command has been previously entered, floppy/no_name will be appended with a number

5 Type in cd /floppy/no_name and press the Enter key.

6 Type in ls –lia and press the Enter key. Verify the bts–#.cal file filename appears in the displayed

directory listing.

. Use the explicit floppy/no_name reference displayed.

7 Type in cd and press the Enter key.

8 Type in pwd and press the Enter key. Verify the displayed response shows the correct home directory

(/home/<user’s name>).

9 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

External Test Equipment Removal

Perform the procedure in Table 5-3 to disconnect the test equipment and configure the BTS for active service.

Step Action

1 Disconnect all external test equipment from all TX and RX

2 Reconnect and visually inspect all TX and RX antenna feed

68P09258A31–A

Table 5-3: External Test Equipment Removal

connectors on the top of the frame.

lines at the top of the frame.

CAUTION

NOTE

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.

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.

5-4

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Prepare to Leave the Site68P09258A31–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

1 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).

2 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.

3 Enter the following MMI command to display the current MGLI2/GLI2 framing format and line code

configuration (in bold type):

span view <cr>

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 is set to use T1_2. Equalization: Span A – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span B – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span C – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span D – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span E – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span F – Default (0–131 feet for T1/J1, 120 Ohm for 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.

4 Repeat steps 1 through 3 for all remaining GLIs.

5 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

Figure 5-1: MGLI2/GLI2 MMI Port Connection

68P09258A31–A

RS–232 CABLE FROM LMF COM1 PORT

9–PIN TO 9– PIN RS–232 CABLE

NULL MODEM BOARD

(PART# 8484877P01)

MMI SERIAL PORT

GLI BOARD

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

1 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).

2 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 Site68P09258A31–A

Table 5-5: Set BTS Span Parameter Configuration

Step Action

3 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> <option#2> <option#3> <option#4> <option#5> 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.

4 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

5 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.

6 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.

1 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.

2 From the Windows Task Bar click Start>Shutdown. Click Yes when the Shut Down Windows

message appears.

3 Wait for the system to shut down and the screen to go blank.

4 Disconnect the LMF terminal Ethernet connector from the BTS cabinet.

5 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 Site68P09258A31–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

1 Connect the 50–pin TELCO cables to the BTS span I/O board 50–pin TELCO connectors.

2 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

RS–232 9–PIN SUB D CONNECTOR SERIAL PORT FOR EXTERNAL DIAL UP MODEM CONNECTION (IF USED)

SPAN A CONNECTOR (TELCO) INTERFACE TO SPAN LINES

TOP of Frame

(Site I/O and Span I/O boards)

50–PIN TELCO CONNECTORS REMOVED

FW00299

SPAN B CONNECTOR (TELCO) INTERFACE TO SPAN LINES

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

1 Terminate the LMF session by following the procedures in Table 5-6.

2 Reconnect spans by following the procedure in Table 5-7.

3 – If BTS is configured for circuit operation, go to Step 4.

– If BTS is configured for packet operation, go to Step 5.

4 Circuit BTS Procedure:

4a From the BTS site, contact the OMC–R and request the operator to perform a BTS reset.

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 Site68P09258A31–A

Table 5-8: Reset BTS Devices and Remote Site Initialization

Step Action

5 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.

6 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

Notes

68P09258A31–A

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

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.

68P09258A31–A

6-2

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

1 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.

2 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.

3 Try pinging the MGLI (see Table 3-11 on page 3-34).

4 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).

5 Verify the LMF was configured properly (see Preparing the LMF section starting on page 3–6).

Troubleshooting: Installation68P09258A31–A

6 Verify the BTS-LMF cable is RG-58 [flexible black cable of less than 76 cm (2.5 feet) length].

7 Verify the Ethernet ports are terminated properly (see Figure 3-9 on page 3-33).

8 Verify a T-adapter is not used on the LMF side port if connected to the BTS front LMF primary

port.

9 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

1 Verify the Power Meter is connected to the LMF with a GPIB adapter.

2 Verify the cable setup as specified in Chapter 3.

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.

4 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

Table 6-2: Troubleshooting a Power Meter Communication Failure

n ActionStep

5 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.

6 Verify the LMF computer COM1 port is not used by another application; for example, if a

HyperTerminal window is open for MMI, close it.

7 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 Action

68P09258A31–A

1 Verify signal generator is connected to LMF with GPIB adapter.

2 Verify cable connections as specified in Chapter 3.

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.

4 Verify the GPIB adapter DIP switch settings are correct. Refer to the CDMA 2000 Test Equipment

Preparation section of Appendix F for details.

5 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.

6 Verify the LMF computer COM1 port is not used by another application; for example, if a

HyperTerminal window is open for MMI, close it.

7 Reset all test equipment by clicking Util in the BTS menu bar and selecting

Test Equipment>Reset from the pull–down lists.

6-4

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

1 Verify T1 is disconnected from the BTS.

2 Verify the LMF can communicate with the BTS device using the Status function.

3 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).

4 Verify the card is physically present in the cage and powered-up.

5 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.

Troubleshooting: Download68P09258A31–A

NOTE

The card can only be replaced by a card of the same type.

6 Re-seat the card and try again.

7 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.

8 If the download portion completes and the reset portion fails, reset the device by selecting the

device and Reset.

9 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 Action

1 Re-seat the card and repeat code and data load procedure.

Oct 2003

1X SCt 4812T BTS Optimization/ATP

6-5

Troubleshooting: Download

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

1 Re-seat the card and repeat the code and data load procedure.

2 If the CSM cannot be enabled, verify the CDF file has correct latitude and longitude data for cell

site location and GPS sync.

68P09258A31–A

3 Ensure the primary CSM is in INS_ACT state.

NOTE

MCCs will not go INS without the CSM being INS.

4 Verify the 19.6608 MHz CSM clock; MCCs will not go INS otherwise.

5 The BBX should not be enabled for ATP tests.

6 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 Action

1 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).

2 Enter ALARMS in the Hyperterminal window.

The resulting LMF display may provide an indication of the problem. (Call Field Support for further assistance.)

6-6

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

1 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.

2 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

Troubleshooting: Calibration68P09258A31–A

3 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.

4 Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the sensor

head.

5 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 Verify the sensor head is functioning properly by checking it with the 1 mW (0 dBm) Power Ref

signal.

7 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

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

1 Verify the Power Meter is configured correctly (refer to the test equipment setup section of

Chapter 3).

2 Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the sensor

head.

3 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.

4 Verify that no sensor head is functioning properly by checking it with the 1 mW (0 dBm) Power

Ref signal.

68P09258A31–A

5 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.

6 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 ATP68P09258A31–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

1 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

1 Verify that TX audit passes for the BBX(s).

2 If performing manual measurement, verify analyzer setup.

3 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

1 Verify presence of RF signal by switching to spectrum analyzer screen.

2 Verify PN offsets displayed on the analyzer is the same as the PN offset in the CDF file.

3 Re–load BBX data and repeat the test.

4 If performing manual measurement, verify analyzer setup.

5 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.

6 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 <Shift–avg> 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

1 Verify presence of RF signal by switching to spectrum analyzer screen.

2 Verify PN offset displayed on analyzer is same as PN offset being used in the CDF file.

3 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

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

1 Verify the test equipment set up is correct for an FER test.

2 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.

3 Verify the MCCs have been loaded with data and are INS–ACT.

4 Disable and re-enable the MCC (one or more based on extent of failure).

5 Disable, re-load code and data, and re-enable the MCC (one or more MCCs based on extent of

failure).

6 Verify the antenna connections to frame are correct based on the directions messages.

Troubleshooting: Receive ATP68P09258A31–A

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 1 Primary = Local GPS

Backup = Either LFR or HSO

SGLN4132 Without GPS Receiver 2 Primary = Remote GPS

Backup = Either LFR or HSO

6-12

1X SCt 4812T BTS Optimization/ATP

2 or 18

Oct 2003

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.

Troubleshooting: CSM Check–list68P09258A31–A

Oct 2003

1X SCt 4812T BTS Optimization/ATP

6-13

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

68P09258A31–A

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.

6-14

Power Input (Return A, B, and C connectors)

Provides a +27 volt or –48 volt input for use by the power supply modules.

1X SCt 4812T BTS Optimization/ATP

Oct 2003

C–CCP Backplane Troubleshooting68P09258A31–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

Oct 2003

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

1X SCt 4812T BTS Optimization/ATP

Table 6-15 through Table 6-24 must be completed before replacing ANY C–CCP backplane.

6-15

C–CCP Backplane Troubleshooting

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

1 Check the 10Base–2 ethernet connector for proper connection, damage, shorts, or opens.

2 Verify the C–CCP backplane Shelf ID DIP switch is set correctly.

3 Visually check the master GLI connector (both board and backplane) for damage.

4 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.

68P09258A31–A

Table 6-16: No GLI Control through Span Line Connection (Both GLIs)

Step Action

1 Verify the C–CCP backplane Shelf ID DIP switch is set correctly.

2 Verify that the BTS and GLIs are correctly configured in the OMCR/CBSC data base.

3 Visually check the master GLI connector (both board and backplane) for damage.

4 Replace the master GLI with a known good GLI.

5 Check the span line inputs from the top of the frame to the master GLI for proper connection and

damage.

6 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

1 Verify that the BTS and GLIs are correctly configured in the OMCR CBSC data base.

2 Check the ethernet for proper connection, damage, shorts, or opens.

3 Visually check all GLI connectors (both board and backplane) for damage.

4 Replace the remaining GLI with a known good GLI.

6-16

1X SCt 4812T BTS Optimization/ATP

Oct 2003

C–CCP Backplane Troubleshooting68P09258A31–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

1 Visually check the master GLI connector (both board and backplane) for damage.

2 Replace the master GLI with a known good GLI.

3 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

1 Visually check all GLI connectors (both board and backplane) for damage.

2 Replace the remaining GLI with a known good GLI.

3 Visually check BBX connectors (both board and backplane) for damage.

4 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

1 Visually check all GLI connectors (both board and backplane) for damage.

2 Replace the remaining GLI with a known good GLI.

3 Visually check all span line distribution (both connectors and cables) for damage.

4 If the problem seems to be limited to one BBX, replace the MGLI with a known good MGLI.

5 Perform the BTS Span Parameter Configuration ( see Table 5-4 on page 5-5).

6 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

1 Verify MCC channel elements (CEs) are correct. MCCTYPE codes are: MCC8E=0, MCC24E=2,

MCC–1X=3.

2 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.

3 If no CEs on any MCC:

– Verify clock reference to CIO.

6-18

1X SCt 4812T BTS Optimization/ATP

Oct 2003

DC Power Problems

C–CCP Backplane Troubleshooting68P09258A31–A

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

1 Verify DC power is applied to the BTS frame.

2 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.

3 Verify that the C–CCP shelf breaker on the BTS frame breaker panel is functional.

4 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.

5 If everything appears to be correct, visually inspect the power supply module connectors.

6 Replace the power supply module with a known good module.

7 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

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

1 Verify the steps in Table 6-22 have been performed.

2 Inspect the defective board/module (both board and backplane) connector for damage.

3 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

68P09258A31–A

Step Action

1 Inspect all Harting Cable connectors and back–plane connectors for damage in all the affected board

slots.

2 Perform steps in the RF path troubleshooting flowchart in this manual.

6-20

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Module Front Panel LED Indicators and Connectors68P09258A31–A

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

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.

68P09258A31–A

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

6-22

1X SCt 4812T BTS Optimization/ATP

FW00303

. . . continued on next page

Oct 2003

Module Front Panel LED Indicators and Connectors68P09258A31–A

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).

Oct 2003

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.

1X SCt 4812T BTS Optimization/ATP

6-23

Module Front Panel LED Indicators and Connectors

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.

68P09258A31–A

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

Figure 6-2: GLI2 Front Panel

Module Front Panel LED Indicators and Connectors68P09258A31–A

LED OPERATING STATUS

STATUS LED

RESET PUSHBUTTON

ALARM LED

SPANS LED

MASTER LED

MMI PORT CONNECTOR

ACTIVE LED

STATUS RESET ALARM SPANS MASTER MMI ACTIVE

STATUS

RESET

ALARM

SPANS

MASTER

MMI PORT CONNECTOR

ACTIVE

OFF – operating normally ON – briefly during power-up when the Alarm LED turns OFF. SLOW GREEN – when the GLI2 is INS (in-service)

All functions on the GLI2 are reset when 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

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.

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 OPERATING STATUS

BPR A

BPR B

AUX

GLI

RESET

ALARM

Span

MMI

STATUS

ACTIVE

Connects to either a BPR or expansion cage and is wired as an ethernet client.

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.

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 the GLI3 is INS (in-service)

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.

OFF – operating normally ON – briefly during power-up when the Alarm LED turns OFF SLOW GREEN – when the GLI3 is INS (in-service)

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

BPR B AUX RESET

GLIBPR A

ALARM

MMI

STA

100BASE–T to BTS Packet Router or Expansion cage

100BASE–T Auxiliary Monitor Port

Dual 100BASE–T in a single RJ45 to Redundant (Mate) GLI3

SPAN

ACT

Reset Switch

Span (LED)

Alarm (LED) MMI Port

Active (LED)

Status (LED)

ti-CDMA-WP-00064-v01-ildoc-ftw

6-26

1X SCt 4812T BTS Optimization/ATP

Oct 2003

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

Module Front Panel LED Indicators and Connectors68P09258A31–A

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.

Oct 2003

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.

1X SCt 4812T BTS Optimization/ATP

6-27

Module Front Panel LED Indicators and Connectors

Figure 6-4: MCC Front Panel

PWR/ALM ACTIVE

PWR/ALM LED

68P09258A31–A

LED

PWR/ALM

COLOR

RED

OFF – operating normally

OPERATING STATUS

ON – briefly during power-up and during failure conditions

LENS (REMOVABLE)

ACTIVE

An alarm is generated in the event of a failure

GREEN

RAPIDLY BLINKING – Card is code-loaded but not enabled SLOW BLINKING – Card is not code-loaded ON – card is code-loaded and enabled

(INS_ACTIVE)

RED

ON – fault condition SLOW FLASHING (alternating with green)

ACTIVE LED

– 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 Link68P09258A31–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

1 Connect the CDMA LMF computer to the MMI port on the applicable MGLI/GLI as shown in

Figure 6-5 or Figure 6-6.

2 Start an MMI communication session with the applicable MGLI/GLI by using the Windows

desktop shortcut icon.

3 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 <cr> (equivalent of span view command)

The system will respond with a display similar to the following:

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.

5 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.

6 Repeat steps 1 through 5 for all remaining GLIs.

7 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.

8 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.

9 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

Figure 6-5: MGLI/GLI Board MMI Connection Detail

To MMI port

68P09258A31–A

STATUS LED

RESET Pushbutton

ALARM LED

GLI

SPANS LED

MASTER LED

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

COM1 or COM2

RS–232

CABLE

DB9–TO–DB25

ADAPTER

ti-CDMA-WP-00079-v01-ildoc-ftw

6-30

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Figure 6-6: GLI3 Board MMI Connection Detail

Basic Troubleshooting – Span Control Link68P09258A31–A

100BASE–T to BTS Packet Router

BPR B AUX RESET

or Expansion cage

100BASE–T Auxiliary Monitor Port

CDMA LMF

COMPUTER

8–PIN

GLI3

To MMI port

8–PIN TO 10–PIN

RS–232 CABLE

(P/N 30–09786R01)

GLIBPR A

ALARM

MMI

STA

SPAN

ACT

Dual 100BASE–T in a single RJ45 to Redundant (Mate) GLI3

Reset Switch

Span (LED)

Alarm (LED) MMI Port

Active (LED)

Status (LED)

NULL MODEM

BOARD

(TRN9666A)

Oct 2003

RS–232

CABLE

COM1 or COM2

1X SCt 4812T BTS Optimization/ATP

DB9–TO–DB25

ADAPTER

REF

ti-CDMA-WP-00064-v01-ildoc-ftw

6-31

Basic Troubleshooting – Span Control Link

Set BTS Site Span Configuration

Table 6-26 describes how to set the span parameter configuration.

68P09258A31–A

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

1 If not previously done, connect the CDMA LMF computer to the MMI port on the applicable

MGLI/GLI as shown in Figure 6-5.

2 If there is no MMI communication session in progress with the applicable MGLI/GLI, initiate one

by using the Windows desktop shortcut icon.

3 At the GLI> prompt, enter:

config ni format <option> <cr>

The terminal will display a response similar to the following:

COMMAND SYNTAX: config ni format option Next available options: LIST – Option : Span Option E1_1 : E1_1 – E1 HDB3 CRC4 no TS16 E1_2 : E1_2 – E1 HDB3 no CRC4 no TS16

E1_3 : E1_3 – E1 HDB3 CRC4 TS16 E1_4 : E1_4 – E1 HDB3 no CRC4 TS16 T1_1 : T1_1 – D4, AMI, No ZCS T1_2 : T1_2 – ESF, B8ZS J1_1 : J1_1 – ESF, B8ZS (Japan) – Default J1_2 : J1_2 – ESF, B8ZS T1_3 : T1_3 – D4, AMI, ZCS >

NOTE

With this command, all active (in–use) spans will be set to the same format.

4 To set or change the span type, enter the correct option from the list at the entry prompt (>), as

shown in the following example:

> T1_2 <cr>

NOTE

The entry is case–sensitive and must be typed exactly as it appears in the list. If the entry is typed incorrectly, a response similar to the following will be displayed:

CP: Invalid command GLI2>

5 An acknowledgement similar to the following will be displayed:

The value has been programmed. It will take effect after the next reset. GLI2>

. . . continued on next page

6-32

1X SCt 4812T BTS Optimization/ATP

Oct 2003

Basic Troubleshooting – Span Control Link68P09258A31–A

Table 6-26: Set BTS Span Parameter Configuration

n ActionStep

6 If the current MGLI/GLI span rate must be changed, enter the following MMI command:

config ni linkspeed <cr>

The terminal will display a response similar to the following:

Next available options: LIST – linkspeed : Span Linkspeed 56K : 56K (default for T1_1 and T1_3 systems) 64K : 64K (default for all other span configurations) >

NOTE

With this command, all active (in–use) spans will be set to the same linkspeed.

To set or change the span linkspeed, enter the required option from the list at the entry prompt (>),

as shown in the following example:

>64K <cr>

NOTE

The entry is case–sensitive and must be typed exactly as it appears in the list. If the entry is typed incorrectly, a response similar to the following will be displayed:

CP: Invalid command

GLI2>

8 An acknowledgement similar to the following will be displayed:

The value has been programmed. It will take effect after the next reset. GLI2>

9 If the span equalization must be changed, enter the following MMI command:

config ni equal<cr>

The terminal will display a response similar to the following:

COMMAND SYNTAX: config ni equal span equal Next available options: LIST – span : Span a : Span A b : Span B c : Span C d : Span D e : Span E f : Span F >

. . . continued on next page

Oct 2003

1X SCt 4812T BTS Optimization/ATP

6-33

Basic Troubleshooting – Span Control Link

Table 6-26: Set BTS Span Parameter Configuration

n ActionStep

10 At the entry prompt (>), enter the designator from the list for the span to be changed as shown in

the following example:

>a<cr>

The terminal will display a response similar to the following:

COMMAND SYNTAX: config ni equal a equal Next available options: LIST – equal : Span Equalization 0 : 0–131 feet (default for T1/J1) 1 : 132–262 feet 2 : 263–393 feet 3 : 394–524 feet 4 : 525–655 feet 5 : LONG HAUL 6 : 75 OHM 7 : 120 OHM (default for E1) >

11 At the entry prompt (>), enter the code for the required equalization from the list as shown in the

following example:

68P09258A31–A

>0<cr>

The terminal will display a response similar to the following:

> 0 The value has been programmed. It will take effect after the next reset. GLI2>

12 Repeat Steps 9 through 11 for each in–use span.

NOTE

– After executing the config ni format, config ni linkspeed, and/or config ni equal

commands, the affected MGLI/GLI board MUST be reset and reloaded for changes to take effect.

– Although defaults are shown, always consult site specific documentation for span type and

linkspeed used at the site.

13 Press the RESET button on the MGLI/GLI for changes to take effect.

14 Once the MGLI/GLI has reset, execute the following command to verify span settings are as

required:

config ni current <cr> (equivalent of span view command)

The system will respond with a display similar to the following:

The frame format in flash is set to use T1_2. Equalization: Span A – 0–131 feet Span B – 0–131 feet Span C – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span D – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span E – Default (0–131 feet for T1/J1, 120 Ohm for E1) Span F – Default (0–131 feet for T1/J1, 120 Ohm for E1)

6-34

Linkspeed: 64K Currently, the link is running at 64K The actual rate is 0

1X SCt 4812T BTS Optimization/ATP

. . . continued on next page

Oct 2003

Nokia Solutions and Networks T6EF1, T5DS1 Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual