Nokia Solutions and Networks T6BN1 User Manual

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Preparing the LMF – continued

Figure 3-6: –48 V SC 4812T Starter Frame I/O Plate

SPAN I/O ASPAN I/O B

ALARM B

ALARM A

RGD

SPAN I/O A

RGPS

SITE I/O

REAR

SITE I/O

SPAN I/O B

HSO/

LFR

GND

LIVE TERMINALSLIVE TERMINALS –48 VDC

TX OUT

FRONT

EXP I/O

GPS

LAN OUT

LAN

CAUTION

FW00479

REF

ETHERNET CONNECTORS

WITH 50–OHM TERMINATORS

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Using CDMA LMF

Basic LMF Operation

The CDMA LMF allows the user to work in the two following operating environments, which are accessed using the specified desktop icon:

 Graphical User Interface (GUI) using the WinLMF icon  Command Line Interface (CLI) using the WinLMF CLI icon

The GUI is the primary optimization and acceptance testing operating environment. The CLI environment provides additional capability to the user to perform manually controlled acceptance tests and audit the results of optimization and calibration actions.

Basic operation of the LMF GUI includes the following:

 Selecting and deselecting BTS devices  Enabling devices  Disabling devices  Resetting devices  Obtaining device status  Sorting a status report window

For detailed information on performing these and other LMF operations, refer to the CDMA LMF Operator’s Guide, 68P64114A78.

Graphical User Interface Overview

The LMF uses a GUI, which works in the following way:

 Select the device or devices.  Select the action to apply to the selected device(s).

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 While action is in progress, a status report window displays the action

taking place and other status information.

 The status report window indicates when the the action is complete

and displays other pertinent information.

 Clicking the OK button closes the status report window.

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Using CDMA LMF – continued

Command Line Interface Overview

The LMF also provides Command Line Interface (CLI) capability. Activate the CLI by clicking on a shortcut icon on the desktop. The CLI can not be launched from the GUI, only from the desktop icon.

Both the GUI and the CLI use a program known as the handler. Only one handler can be running at one time Due to architectural limitations, the GUI must be started before the CLI if you want the GUI and CLI to use the same handler. When the CLI is launched after the GUI, the CLI automatically finds and uses an in–progress login session with a BTS initiated under the GUI. This allows the use of the GUI and the CLI in the same BTS login session. If a CLI handler is already running when the GUI is launched (this happens if the CLI window is already running when the user starts the GUI, or if another copy of the GUI is already running when the user starts the GUI), a dialog window displays the following warning message:

The CLI handler is already running. This may cause conflicts with the LMF. Are you sure that you want to start the application?

This window also contains yes and no buttons. Selecting yes starts the

application. Selecting no terminates the application.

CLI Format Conventions

The CLI command can be broken down in the following way:

 verb  device including device identifier parameters  switch  option parameters consisting of:

– keywords – equals signs (=) between the keywords and the parameter values – parameter values

Spaces are required between the verb, device, switch, and option parameters. A hyphen is required between the device and its identifiers. Following is an example of a CLI command.

measure bbx–<bts_id>–<bbx_id> rssi channel=6 sector=5 Refer to LMF CLI Commands, R15.x 68P09251A59 for a complete

explanation of the CLI commands and their use.

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Using CDMA LMF – continued

Logging into a BTS

IMPORTANT

Be sure that the correct bts–#.cdf and cbsc–#.cdf file is used for the BTS. These should be the CDF files that are provided for the BTS by the CBSC. Failure to use the correct CDF files can result in invalid optimization.

Failure to use the correct CDF files to log into a live (traffic carrying) site can shut down the site.

Logging into a BTS establishes a communications link between the BTS and the CDMA LMF. You may be logged into more than one BTS at a time, but only one LMF may be logged into each BTS.

Before attempting to log into the BTS, confirm the CDMA LMF is properly connected to the BTS (see Figure 3-2).

Prerequisites

Before attempting to login to a BTS, ensure the following have been completed:

 The LMF operating system is correctly installed and prepared.  A bts-nnn folder with the correct CDF and CBSC file exists.  The LMF is correctly installed and prepared, and the LMF computer is

connected to the BTS before starting the Windows operating system and LMF software. If necessary, restart the computer after connecting it to the BTS (see Table 3-2 and Figure 3-2).

BTS Login from the GUI Environment

Follow the procedure in Table 3-7 to log into a BTS when using the GUI environment.

Table 3-7: BTS GUI Login Procedure

Step Action

1 Start the CDMA LMF GUI environment by clicking on the WinLMF desktop icon (if the LMF is not

running).

NOTE

If a warning similar to the following is displayed, select No, shut down other LMF sessions which may be running, and start the CDMA LMF GUI environment again:

The CLI handler is already running. This may cause conflicts with the LMF Are you sure you want to start the application?

Yes No

2 Click on the Login tab (if not displayed).

. . . continued on next page

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Using CDMA LMF – continued

Table 3-7: BTS GUI Login Procedure

Step Action

3 If no base stations are displayed in the Available Base Stations pick list, double click on the CDMA

icon.

4 Click on the desired BTS number. 5 Click on the Network Login tab (if not already in the forefront). 6 Enter the correct IP address (normally 128.0.0.2 for a field BTS) if not correctly displayed in the IP

Address box.

NOTE

128.0.0.2 is the default IP address for MGLI–1 in field BTS units. 128.0.0.1 is the default IP address for MGLI–2.

7 Type in the correct IP Port number (normally 9216) if not correctly displayed in the IP Port box. 8 Change the Multi-Channel Preselector (from the Multi-Channel Preselector pick list), normally

MPC, corresponding to your BTS configuration, if required.

NOTE

When performing RX tests on expansion frames, do not choose EMPC if the test equipment is connected to the starter frame.

9 Click on the Use a Tower Top Amplifier, if applicable.

Click on Login.

A BTS tab with the BTS is displayed.

NOTE

 If you attempt to login to a BTS that is already logged on, all devices will be gray.  There may be instances where the BTS initiates a log out due to a system error (i.e., a device

failure).

 If the MGLI is OOS_ROM (blue), it will have to be downloaded with code before other devices can

be seen.

 If the MGLI is OOS–RAM (yellow), it must be enabled before other installed devices can be seen.

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Using CDMA LMF – continued

BTS Login from the CLI Environment

Follow the procedure in Table 3-8 to log into a BTS when using the CLI environment.

IMPORTANT

Table 3-8: BTS CLI Login Procedure

Step Action

1 Double click the WinLMF CLI desktop icon (if the LMF CLI environment is not already running).

The GUI and CLI environments use the same connection to a BTS. If a GUI and the CLI session are running for the same BTS at the same time, logging out of the BTS in either environment will log out of it for both. When either a login or logout is performed in the CLI window, there is no GUI indication that logout has occurred.

NOTE

If a BTS was logged into under a GUI session when the CLI environment was started, the CLI session will be logged into the same BTS, and step 2 is not required.

2 At the /wlmf prompt, enter the following command:

where: host = MGLI card IP address (defaults to address last logged into for this BTS or 128.0.0.2 if this is

first login to this BTS). port = IP port of the BTS (defaults to port last logged into for this BTS or 9216 if this is first login to

this BTS).

port=<port>

Logging Out

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Logging out of a BTS is accomplished differently for the GUI and the CLI operating environments.

IMPORTANT

Logging Out of a BTS from the GUI Environment

Follow the procedure in Table 3-9 to logout of a BTS when using the GUI environment.

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Using CDMA LMF – continued

Table 3-9: BTS GUI Logout Procedure

Step Action

1 Click on Select on the BTS tab menu bar. 2 Click the Logout item in the pull–down menu (a Confirm Logout pop–up message appears). 3 Click on Yes or press the <Enter> key to confirm logout.

You are returned to the Login tab.

NOTE

If a logout was previously performed on the BTS from a CLI window running at the same time as the GUI, a Logout Error pop–up message appears stating the system should not log out of the BTS. When this occurs, the GUI must be exited and restarted before it can be used for further operations.

4 If a Logout Error pop–up message appears stating that the system could not log out of the Base

Station because the given BTS is not logged in, perform the following actions:

– Click OK. – Select File>Exit in the window menu bar. – Click Yes in the Confirm Logout pop–up. – Click Yes in the Logout Error pop–up which appears again.

5 If further work is to be done in the GUI, restart it.

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Using CDMA LMF – continued

Logging Out of a BTS from the CLI Environment

Follow the procedure in Table 3-9 to logout of a BTS when using the CLI environment.

Table 3-10: BTS CLI Logout Procedure

Step Action

* IMPORTANT

If the BTS is also logged into from a GUI running at the same time and further work must be done with it in the GUI, proceed to step 2.

1 Logout of a BTS by entering the following command:

logout bts–<bts#>

A response similar to the following is displayed:

LMF> 12:22:58.028 Command Received and Accepted

Command=logout bts–33 12:22:58.028 Command Received and Accepted 12:22:58.028 Command Successfully Completed

REASON_CODE=”No Reason”

2 If desired, close the CLI interface by entering the following command:

exit

A response similar to the following is displayed before the window closes:

Killing background processes....

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Using CDMA LMF – continued

Establishing an MMI Communication Session

Table 3-11: Establishing MMI Communications

For those procedures that require MMI communications between the LMF and BTS FRUs, follow the procedure in Table 3-11 to initiate the communication session.

Step Action

1 Connect the LMF computer to the equipment as detailed in the applicable procedure that requires the

MMI communication session.

2 Start the named HyperTerminal connection for MMI sessions by double clicking on its desktop

shortcut.

NOTE

If a desktop shortcut was not created for the MMI connection, access the connection from the Start menu by selecting:

Programs>Accessories>Hyperterminal>HyperTerminal><Named HyperTerminal Connection (e.g., MMI Session).

3 Once the connection window opens, establish MMI communication with the BTS FRU by pressing

the LMF computer <Enter> key until the prompt identified in the applicable procedure is obtained.

Figure 3-7: CDMA LMF Computer Common MMI Connections

To FRU MMI port

8–PIN

NULL MODEM

BOARD

(TRN9666A)

CDMA LMF COMPUTER

Mar 2001

8–PIN TO 10–PIN RS–232 CABLE (P/N 30–09786R01)

RS–232 CABLE

COM1

COM2

SCt4812T CDMA BTS Optimization/ATP

DB9–TO–DB25 ADAPTER

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Download the BTS

Download the BTS – Overview

Before a BTS can operate, each equipped device must contain device initialization (ROM) code. ROM code is loaded in all devices during manufacture or factory repair. Device application (RAM) code and data must be downloaded to each equipped device by the user before the BTS can be made fully functional for the site where it is installed.

ROM Code

Downloading ROM code to BTS devices from the LMF is NOT routine maintenance nor a normal part of the optimization process. It is only

done in unusual situations where the resident ROM code in the device does not match the release level of the site operating software AND the CBSC cannot communicate with the BTS to perform the download. If you must download ROM code, refer to Appendix H.

Before ROM code can be downloaded from the LMF, the correct ROM code file for each device to be loaded must exist on the LMF computer. ROM code must be manually selected for download.

RAM Code

Before RAM code can be downloaded from the CDMA LMF, the correct RAM code file for each device must exist on the LMF computer. RAM code can be automatically or manually selected depending on the Device menu item chosen and where the RAM code file for the device is stored in the CDMA LMF file structure. The RAM code file is selected automatically if the file is in the \lmf\cdma\loads\n.n.n.n\code folder (where n.n.n.n is the version number of the download code). The RAM code file in the code folder must have the correct hardware bin number.

RAM code can be downloaded to a device that is in any state. After the download is started, the device being downloaded changes to OOS-ROM (blue). When the download is completed successfully, the device changes to OOS-RAM (yellow). When code is downloaded to an MGLI, the LMF automatically also downloads data, and then enables the MGLI. When enabled, the MGLI changes to INS (green).

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For non–MGLI devices, data must be downloaded after RAM code is downloaded. To download data, the device state must be OOS–RAM (yellow).

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Download the BTS – continued

Download Code to Devices

Code can be downloaded to a device that is in any state. After the download starts, the device being downloaded changes to OOS_ROM (blue). If the download is completed successfully, the device changes to OOS_RAM with code loaded (yellow). Prior to downloading a device, a code file must exist. The code file is selected automatically if the code file is in the /lmf/cdma/n.n.n.n/code folder (where n.n.n.n is the version number of the download code that matches the “NextLoad” parameter in the CDF file). The code file in the code folder must have the correct hardware bin number. Code can be automatically or manually selected.

The following are the devices to be downloaded:

 Span Configuration

– Master Group Line Interface (MGLI2) – Slave Group Line Interface (SGLI2)

 Clock Synchronization Module (CSM)  Multi Channel Card (MCC24E, MCC8E or MCC–1X)

 Broadband Transceiver (BBX)  Test Subscriber Interface Card (TSIC) – if RFDS is installed

IMPORTANT

Follow the procedure in Table 3-12 to download the firmware application code for the MGLI2. The download code action downloads data and also enables the MGLI2.

Prerequisite

Prior to performing this procedure, ensure a code file exists for each of the devices to be downloaded.

The MGLI must be successfully downloaded with code and data, and put INS before downloading any other device. The download code process for an MGLI automatically downloads data and enables the MGLI before downloading other devices. The other devices can be downloaded in any order.

. . . continued on next page

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Download the BTS – continued

WARNING

R9 RAM code must NOT be downloaded to a device that has R8 ROM code and R8 RAM code must NOT be downloaded to a device that has R9 ROM code. All devices in a BTS must have the same R–level ROM and RAM code before the optimization and ATP procedures can be performed. If a newly installed R8 BTS is to be upgraded to R9, the optimization and ATPs should be

accomplished with the R8 code. Then the site should be upgraded to R9 by the CBSC. The optimization and ATP procedures do not have to be performed again after the R9 upgrade. If a replacement R8 device needs to be used in a R9 BTS, the device ROM code can be changed with use of the LMF before the optimization and ATPs are performed for the BTS. Refer to the Download ROM Code section. A R9 device can not be converted back to a R8 device in the field without Motorola assistance.

Table 3-12: Download and Enable MGLI2

 Step Action

1 Select Util>Tools>Update Next Load function to ensure the Next Load parameter is set to the

correct code version level.

2 Download code to the primary MGLI2 by clicking on the MGLI2.

– From the Device pull down menu, select Download Code.

A status report confirms change in the device(s) status.

– Click OK to close the status window. (The MGLI2 should automatically be downloaded with

data and enabled.)

3 Download code and data to the redundant MGLI2 but do not enable at this time.

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Download the BTS – continued

Download Code and Data to Non–MGLI2 Devices

Non–MGLI2 devices can be downloaded individually or all equipped devices can be downloaded with one action. Follow the procedure in Table 3-13 to download code and data to the non–MGLI2 devices.

NOTE

When downloading multiple devices, the download may fail for some of the devices (a time out occurs). These devices can be downloaded separately after completing the multiple download.

Table 3-13: Download Code and Data to Non–MGLI Devices

 Step Action

1 Select all devices to be downloaded. 2 From the Device pull down menu, select Download Code.

A status report displays the result of the download for each selected device. Click OK to close the status window.

NOTE

After the download has started, the device being downloaded changes to blue. If the download is completed successfully, the device changes to yellow (OOS-RAM with code loaded).

After a BBX, CSM or MCC is successfully downloaded with code and has changed to OOS-RAM, the status LED should be rapidly flashing GREEN.

3 To download the firmware application data to each device, select the target device and select:

Device>Download Data

Select CSM Clock Source

A CSM can have three different clock sources. The Clock Source function can be used to select the clock source for each of the three inputs. This function is only used if the clock source for a CSM needs to be changed. The Clock Source function provides the following clock source options:

 Local GPS  Remote GPS  HSO (only for sources 2 & 3)  LFR (only for sources 2 & 3)  10 MHz (only for sources 2 & 3)  NONE (only for sources 2 & 3)

Mar 2001

Prerequisites

MGLI=INS_ACT CSM= OOS_RAM or INS_ACT

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Download the BTS – continued

Follow the procedure in Table 3-14 to select a CSM Clock Source.

Table 3-14: Select CSM Clock Source

Step Action

1 Select the applicable CSM(s). 2 Click on the Device menu. 3 Click on the Clock Source menu item.

4 Click on the Select menu item.

A clock source selection window is displayed.

5 Select the applicable clock source in the Clock Reference Source pick lists.

Uncheck the related check box if you do not want the displayed pick list item to be used.

6 Click on the OK button.

A status report window displays the results of the selection action.

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

Enable CSMs

Each BTS CSM system features two CSM boards per site. In a typical operation, the primary CSM locks its Digital Phase Locked Loop (DPLL) circuits to GPS signals. These signals are generated by either an on–board GPS module (RF–GPS) or a remote GPS receiver (R–GPS). The CSM2 card is required when using the R–GPS. The GPS receiver (mounted on CSM–1) is the primary timing reference and synchronizes the entire cellular system. CSM–2 provides redundancy but does not have a GPS receiver.

The BTS may be equipped with a remote GPS, LORAN–C LFR, or HSO 10 MHz Rubidium source, which the CSM can use as a secondary timing reference. In all cases, the CSM monitors and determines what reference to use at a given time.

IMPORTANT

– CSMs are code loaded at the factory. This data is

retained in EEPROM. The download code procedure is required in the event it becomes necessary to code load CSMs with updated software versions. Use the status function to determine the current code load versions.

– For non–RGPS sites only, verify the CSM configured

with the GPS receiver “daughter board” is installed in the CSM–1 slot before continuing.

– The CSM(s) and MCC(s) to be enabled must have

been downloaded with code (Yellow, OOS–RAM) and data.

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Download the BTS – continued

Follow the procedure in Table 3-15 to enable the CSMs.

Table 3-15: Enable CSMs

 Step Action

1 Verify the CSM(s) have been downloaded with code (Yellow, OOS–RAM) and data. 2

Click on the target CSM. From the Device pull down, select Enable.

NOTE

If equipped with two CSMs, enable CSM–2 first and then CSM–1. A status report confirms change in the device(s) status. Click OK to close the status window.

NOTE

FAIL may be shown in the status table for enable action. If Waiting For Phase Lock is shown in the Description field, the CSM changes to the enabled state after phase lock is achieved. CSM–1 houses the GPS receiver. The enable sequence can take up to one hour to complete.

* IMPORTANT

The GPS satellite system satellites are not in a geosynchronous orbit and are maintained and operated by the United States Department of Defense (D.O.D.). The D.O.D. periodically alters satellite orbits; therefore, satellite trajectories are subject to change. A GPS receiver that is INS contains an “almanac” that is updated periodically to take these changes into account.

If an installed GPS receiver has not been updated for a number of weeks, it may take up to one hour for the GPS receiver “almanac” to be updated.

Once updated, the GPS receiver must track at least four satellites and obtain (hold) a 3-D position fix for a minimum of 45 seconds before the CSM will come in-service. (In some cases, the GPS receiver needs to track only one satellite, depending on accuracy mode set during the data load.)

Mar 2001

NOTE

If equipped with two CSMs, the LMF should display CSM-1 as bright GREEN (INS–ACT) and CSM–2 as dark green (INS–STB). After the CSMs have been successfully enabled, the PWR/ALM LEDs are steady green (alternating green/red indicates the card is in an alarm state).

If more than an hour has passed, refer to Table 3-19 and Table 3-20 to determine the cause.

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Download the BTS – continued

Enable MCCs

This procedure configures the MCC and sets the “tx fine adjust” parameter. The “tx fine adjust” parameter is not a transmit gain setting, but a timing adjustment that compensates for the processing delay in the BTS (approximately 3 ms).

Follow the procedure in Table 3-16 to enable the MCCs.

Table 3-16: Enable MCCs

 Step Action

1 Verify the MCC(s) have been downloaded with code (Yellow, OOS–RAM) and data. 2 Select the MCCs to be enabled or from the Select pulldown menu choose All MCCs. 3 From the Device menu, select Enable

A status report confirms change in the device(s) status.

4 Click on OK to close the status report window.

Enable Redundant GLIs

Follow the procedure in Table 3-17 to enable the redundant GLI(s).

Table 3-17: Enable Redundant GLIs

 Step Action

IMPORTANT

The MGLI2, and primary CSM must be downloaded and enabled (IN–SERVICE ACTIVE), before downloading and enabling the MCC.

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1 Select the target redundant GLI(s). 2 From the Device menu, select Enable.

A status report window confirms the change in the device(s) status and the enabled GLI(s) is green.

3 Click on OK to close the status report window.

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Mar 2001

CSM System Time/GPS and LFR/HSO Verification

CSM & LFR Background

The primary function of the Clock Synchronization Manager (CSM) boards (slots 1 and 2) is to maintain CDMA system time. The CSM in slot 1 is the primary timing source while slot 2 provides redundancy. The CSM2 card (CSM second generation) is required when using the remote GPS receiver (R–GPS). R–GPS uses a GPS receiver in the antenna head that has a digital output to the CSM2 card. CSM2 can have a daughter card as a local GPS receiver to support an RF–GPS signal.

The CSM2 switches between the primary and redundant units (slots 1 and 2) upon failure or command. CDMA Clock Distribution Cards (CCDs) buffer and distribute even–second reference and 19.6608 MHz clocks. CCD–1 is married to CSM–1 and CCD–2 is married to CSM 2. A failure on CSM–1 or CCD–1 cause the system to switch to redundant CSM–2 and CCD–2.

In a typical operation, the primary CSM locks its Digital Phase Locked Loop (DPLL) circuits to GPS signals. These signals are generated by either an on–board GPS module (RF–GPS) or a remote GPS receiver (R–GPS). The CSM2 card is required when using the R–GPS. DPLL circuits employed by the CSM provide switching between the primary and redundant unit upon request. Synchronization between the primary and redundant CSM cards, as well as the LFR or HSO back–up source, provides excellent reliability and performance.

Each CSM board features an ovenized, crystal oscillator that provides

19.6608 MHz clock, even second tick reference, and 3 MHz sinewave reference, referenced to the selected synchronization source (GPS, LORAN–C Frequency Receiver (LFR), or High Stability Oscillator (HSO), T1 Span, or external reference oscillator sources). The 3 MHz signals are also routed to the RDM EXP 1A & 1B connectors on the top interconnect panel for distribution to co–located frames at the site.

Fault management has the capability of switching between the GPS synchronization source and the LFR/HSO backup source in the event of a GPS receiver failure on CSM–1. During normal operation, the CSM–1 board selects GPS as the primary source (see Table 3-19). The source selection can also be overridden via the LMF or by the system software.

All boards are mounted in the C–CCP shelf at the top of the BTS frame. Figure 3-9 on page 3-36 illustrates the location of the boards in the BTS frame. The diagram also shows the CSM front panel.

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CSM System Time/GPS and LFR/HSO Verification – continued

Low Frequency Receiver/ High Stability Oscillator

The CSM handles the overall configuration and status monitoring functions of the LFR/HSO. In the event of GPS failure, the LFR/HSO is capable of maintaining synchronization initially established by the GPS reference signal.

The LFR requires an active external antenna to receive LORAN RF

signals. Timing pulses are derived from this signal, which is synchronized to Universal Time Coordinates (UTC) and GPS time. The LFR can maintain system time indefinitely after initial GPS lock.

The HSO is a high stability 10 MHz oscillator with the necessary interface to the CSMs. The HSO is typically installed in those geographical areas not covered by the LORAN–C system. Since the HSO is a free–standing oscillator, system time can only be maintained for 24 hours after 24 hours of GPS lock.

Upgrades and Expansions: LFR2/HSO2/HSOX

Front Panel LEDs

LFR2/HSO2 (second generation cards) both export a timing signal to the expansion or logical BTS frames. The associated expansion or logical frames require an HSO–expansion (HSOX) whether the starter frame has an LFR2 or an HSO2. The HSOX accepts input from the starter frame and interfaces with the CSM cards in the expansion frame. LFR and LFR2 use the same source code in source selection (see Table 3-18). HSO, HSO2, and HSOX use the same source code in source selection (see Table 3-18).

NOTE

Allow the base site and test equipment to warm up for 60 minutes after any interruption in oscillator power. CSM

board warm-up allows the oscillator oven temperature and oscillator frequency to stabilize prior to test. Test equipment warm-up allows the Rubidium standard timebase to stabilize in frequency before any measurements are made.

The status of the LEDs on the CSM boards are as follows:

 Steady Green – Master CSM locked to GPS or LFR (INS).

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 Rapidly Flashing Green – Standby CSM locked to GPS or LFR

(STBY).

 Flashing Green/Rapidly Flashing Red – CSM OOS–RAM attempting

to lock on GPS signal.

 Rapidly Flashing Green and Red – Alarm condition exists. Trouble

Notifications (TNs) are currently being reported to the GLI.

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CSM System Time/GPS and LFR/HSO Verification – continued

Null Modem Cable

A null modem cable is required. It is connected between the LMF COM1 port and the RS232–GPIB Interface box. Figure 3-8 shows the wiring detail for the null modem cable.

Figure 3-8: Null Modem Cable Detail

9–PIN D–FEMALE 9–PIN D–FEMALE

GND

TX RTS CTS

RSD/DCD

DTR

DSR

3 2 7 8 1 4 6

ON BOTH CONNECTORS SHORT PINS 7, 8; SHORT PINS 1, 4, & 6

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 The LMF is NOT logged into the BTS.  The COM1 port is connected to the MMI port of the primary CSM via

a null modem board.

GND

RTS

CTS

RSD/DCD

DTR

4 6

DSR

FW00362

CSM Frequency Verification

The objective of this procedure is the initial verification of the CSM boards before performing the rf path verification tests. Parts of this procedure will be repeated for final verification after the overall optimization has been completed.

Test Equipment Setup: GPS & LFR/HSO Verification

Follow the procedure in Table 3-18 to set up test equipment while referring to Figure 3-9 as required.

Table 3-18: Test Equipment Setup (GPS & LFR/HSO Verification)

Step Action

1 Perform one of the following operations:

– For local GPS (RF–GPS), verify a CSM board with a GPS receiver is installed in primary CSM

slot 1 and that CSM–1 is INS.

NOTE

This is verified by checking the board ejectors for kit number SGLN1145 on the board in slot 1.

– For Remote GPS (RGPS), verify a CSM2 board is installed in primary slot 1 and that CSM–1 is

INS

NOTE

This is verified by checking the board ejectors for kit number SGLN4132CC (or subsequent).

2 Remove CSM–2 (if installed) and connect a serial cable from the LMF COM 1 port (via null modem

board) to the MMI port on CSM–1.

. . . continued on next page

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-35

CSM System Time/GPS and LFR/HSO Verification – continued

Table 3-18: Test Equipment Setup (GPS & LFR/HSO Verification)

Step Action

3 Reinstall CSM–2. 4 Start an MMI communication session with CSM–1 by using the Windows desktop shortcut icon (see

Table 3-5)

NOTE

Figure 3-9: CSM MMI terminal connection

The LMF program must not be running when a Hyperterminal session is started if COM1 is being used for the MMI session.

5 When the terminal screen appears, press the <Enter> key until the CSM> prompt appears.

REFERENCE OSCILLATOR

CSM board shown

removed from frame

MMI SERIAL

PORT

EVEN SECOND

TICK TEST POINT

REFERENCE

19.6 MHZ TEST

POINT REFERENCE

NOTES:

1. One LED on each CSM:

(NOTE 1)

LMF NOTEBOOK

Green = IN–SERVICE ACTIVE Fast Flashing Green = OOS–RAM Red = Fault Condition Flashing Green & Red = Fault

COM1

ANTENNA COAX CABLE

GPS RECEIVER

GPS RECEIVER ANTENNA INPUT

9–PIN TO 9–PIN

RS–232 CABLE

RS–232 SERIAL MODEM CABLE

DB9–TO–DB25 ADAPTER

NULL MODEM

BOARD

(TRN9666A)

FW00372

3-36

SCt4812T CDMA BTS Optimization/ATP

Mar 2001

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

GPS Initialization/Verification

Follow the procedure in Table 3-19 to initialize and verify proper GPS receiver operation.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 The LMF is not logged into the BTS.  The COM1 port is connected to the MMI port of the primary CSM via

a null modem board (see Figure 3-9).

 The primary CSM and HSO (if equipped) have been warmed up for at

least 15 minutes.

CAUTION

 Connect the GPS antenna to the GPS RF connector

ONLY. Damage to the GPS antenna and/or receiver can result if the GPS antenna is inadvertently connected to any other RF connector.

Table 3-19: GPS Initialization/Verification

Step Action

1 To verify that Clock alarms (0000), Dpll is locked and has a reference source, and

GPS self test passed messages are displayed within the report, issue the following MMI

command

bstatus

– Observe the following typical response:

CSM Status INS:ACTIVE Slot A Clock MASTER.

BDC_MAP:000, This CSM’s BDC Map:0000

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

HSO information (underlined text above, verified from left to right) is usually the #1 reference source.

If this is not the case, have the OMCR determine the correct BTS timing source has been identified in the database by entering the

csm csmgen refsrc command.

display bts csmgen command and correct as required using the edit

* IMPORTANT

If any of the above mentioned areas fail, verify:

– If LED is RED, verify that HSO had been powered up for at least 5 minutes. After oscillator

temperature is stable, LED should go GREEN Wait for this to occur before continuing !

– If “timed out” is displayed in the Last Phase column, suspect the HSO output buffer or oscillator

is defective

– Verify the HSO is FULLY SEATED and LOCKED to prevent any possible board warpage

. . . continued on next page

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

3-37

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

Table 3-19: GPS Initialization/Verification

Step Action

3 Verify the following GPS information (underlined text above):

– GPS information is usually the 0 reference source. – At least one Primary source must indicate “Status = good” and “Valid = yes” to bring site up.

4 Enter the following command at the CSM> prompt to verify that the GPS receiver is in tracking mode.

gstatus

– Observe the following typical response:

24:06:08 GPS Receiver Control Task State: tracking satellites. 24:06:08 Time since last valid fix: 0 seconds. 24:06:08 24:06:08 Recent Change Data: 24:06:08 Antenna cable delay 0 ns. 24:06:08 Initial position: lat 117650000 msec, lon –350258000 msec, height 0 cm (GPS) 24:06:08 Initial position accuracy (0): estimated. 24:06:08 24:06:08 GPS Receiver Status: 24:06:08 Position hold: lat 118245548 msec, lon –350249750 msec, height 20270 cm 24:06:08 Current position: lat 118245548 msec, lon –350249750 msec, height 20270 cm (GPS) 24:06:08 8 satellites tracked, receiving 8 satellites, 8 satellites visible. 24:06:08 Current Dilution of Precision (PDOP or HDOP): 0. 24:06:08 Date & Time: 1998:01:13:21:36:11 24:06:08 GPS Receiver Status Byte: 0x08 24:06:08 Chan:0, SVID: 16, Mode: 8, RSSI: 148, Status: 0xa8 24:06:08 Chan:1, SVID: 29, Mode: 8, RSSI: 132, Status: 0xa8 24:06:08 Chan:2, SVID: 18, Mode: 8, RSSI: 121, Status: 0xa8 24:06:08 Chan:3, SVID: 14, Mode: 8, RSSI: 110, Status: 0xa8 24:06:08 Chan:4, SVID: 25, Mode: 8, RSSI: 83, Status: 0xa8 24:06:08 Chan:5, SVID: 3, Mode: 8, RSSI: 49, Status: 0xa8 24:06:08 Chan:6, SVID: 19, Mode: 8, RSSI: 115, Status: 0xa8 24:06:08 Chan:7, SVID: 22, Mode: 8, RSSI: 122, Status: 0xa8 24:06:08 24:06:08 GPS Receiver Identification: 24:06:08 COPYRIGHT 1991–1996 MOTOROLA INC. 24:06:08 SFTW P/N # 98–P36830P 24:06:08 SOFTWARE VER # 8 24:06:08 SOFTWARE REV # 8 24:06:08 SOFTWARE DATE 6 AUG 1996 24:06:08 MODEL # B3121P1115 24:06:08 HDWR P/N # _ 24:06:08 SERIAL # SSG0217769 24:06:08 MANUFACTUR DATE 6B07 24:06:08 OPTIONS LIST IB 24:06:08 The receiver has 8 channels and is equipped with TRAIM.

5 Verify the following GPS information (shown above in underlined text):

– At least 4 satellites are tracked, and 4 satellites are visible. – GPS Receiver Control Task State is “tracking satellites”. Do not continue until this occurs! – Dilution of Precision indication is not more that 30.

Record the current position base site latitude, longitude, height and height reference (height reference to Mean Sea Level (MSL) or GPS height (GPS). (GPS = 0 MSL = 1).

3-38

SCt4812T CDMA BTS Optimization/ATP

. . . continued on next page

Mar 2001

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

Table 3-19: GPS Initialization/Verification

Step Action

If steps 1 through 5 pass, the GPS is good.

* IMPORTANT

If any of the above mentioned areas fail, verify that:

– If Initial position accuracy is “estimated”

visible (1 satellite must be tracked and visible if actual lat, log, and height data for this site has been entered into CDF file).

– If Initial position accuracy is “surveyed”,

accurate. GPS will not automatically survey and update its position.

– The GPS antenna is not obstructed or misaligned. – GPS antenna connector center conductor measures approximately +5 Vdc with respect to the

shield.

– There is no more than 4.5 dB of loss between the GPS antenna OSX connector and the BTS frame

GPS input.

– Any lightning protection installed between GPS antenna and BTS frame is installed correctly.

(typical), at least 4 satellites must be tracked and

position data currently in the CDF file is assumed to be

Enter the following commands at the CSM> prompt to verify that the CSM is warmed up and that GPS

acquisition has taken place.

debug dpllp

Observe the following typical response if the CSM is not warmed up (15 minutes from application of power) (If warmed–up proceed to step 8)

CSM>DPLL Task Wait. 884 seconds left. DPLL Task Wait. 882 seconds left.

DPLL Task Wait. 880 seconds left. ...........etc.

NOTE

The warm command can be issued at the MMI port used to force the CSM into warm–up, but the reference oscillator will be unstable.

8 Observe the following typical response if the CSM is warmed up.

c:17486 off: –11, 3, 6 TK SRC:0 S0: 3 S1:–2013175,–2013175 c:17486 off: –11 c:17470 off: –11 c:17486 off: –11 c:17470 off: –11 c:17470 off: –11

9 Verify the following GPS information (underlined text above, from left to right):

– Lower limit offset from tracked source variable is not less than –60 (equates to 3µs limit). – Upper limit offset from tracked source variable is not more than +60 (equates to 3µs limit). – TK SRC: 0 is selected, where SRC 0 = GPS.

, 3, 6 TK SRC:0 S0: 3 S1:–2013175,–2013175 , 1, 6 TK SRC:0 S0: 1 S1:–2013175,–2013175 , 3, 6 TK SRC:0 S0: 3 S1:–2013175,–2013175 , 1, 6 TK SRC:0 S0: 1 S1:–2013175,–2013175 , 1, 6 TK SRC:0 S0: 1 S1:–2013175,–2013175

10 Enter the following commands at the CSM> prompt to exit the debug mode display.

debug dpllp

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-39

CSM System Time/GPS and LFR/HSO Verification – continued

LFR Initialization/Verification

The LORAN–C LFR is a full size card that resides in the C–CCP Shelf. The LFR is a completely self-contained unit that interfaces with the CSM via a serial communications link. The CSM handles the overall configuration and status monitoring functions of the LFR.

The LFR receives a 100 kHz, 35 kHz BW signal from up to 40 stations (8 chains) simultaneously and provides the following major functions:

 Automatic antenna pre-amplifier calibration (using a second

differential pair between LFR and LFR antenna)

 A 1 second ±200 ηs strobe to the CSM

If the BTS is equipped with an LFR, follow the procedure in Table 3-20 to initialize the LFR and verify proper operation as a backup source for the GPS.

NOTE

If CSMRefSrc2 = 2 in the CDF file, the BTS is equipped with an LFR. If CSMRefSrc2 = 18, the BTS is equipped with an HSO.

. . . continued on next page

3-40

SCt4812T CDMA BTS Optimization/ATP

Mar 2001

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

8290W 58/61 dB 6 S/N Flag:

8970X 73/79 dB 22 S/N Fl

9610W 47/49 dB –4 S/N Flag:E

9940W 49/56 dB 4 S/N Flag:E

9960W 51/60 dB 0 S/N Fl

Table 3-20: LFR Initialization/Verification

Step Action Note

1 At the CSM> prompt, enter lstatus <cr> to verify that the LFR is in tracking

mode. A typical response is:

CSM> lstatus <cr> LFR Station Status: Clock coherence: 512 > 5930M 51/60 dB 0 S/N Flag: 5930X 52/64 dn –1 S/N Flag: 5990 47/55 dB –6 S/N Flag: 7980M 62/66 dB 10 S/N Flag: 7980W 65/69 dB 14 S/N Flag: . PLL Station . > 7980X 48/54 dB –4 S/N Flag: 7980Y 46/58 dB –8 S/N Flag:E 7980Z 60/67 dB 8 S/N Flag: 8290M 50/65 dB 0 S/N Flag: 8290W 73/79 dB 20 S/N Flag: 8290W 58/61 dB 6 S/N Flag: 8970M 89/95 dB 29 S/N Flag: 8970W 62/66 dB 10 S/N Flag:

8970Y 73/79 dB 19 S/N Flag: 8970Z 62/65 dB 10 S/N Flag: 9610M 62/65 dB 10 S/N Flag: 9610V 58/61 dB 8 S/N Flag: 9610W 47 9610X 46/57 dB –5 S/N Flag:E 9610Y 48/54 dB –5 S/N Flag:E 9610Z 65/69 dB 12 S/N Flag: 9940M 50/53 dB –1 S/N Flag:S 9940W 49/56 dB –4 S/N Flag:E 9940Y 46/50 dB–10 S/N Flag:E 9960M 73/79 dB 22 S/N Flag:

9960X 51/63 dB –1 S/N Flag: 9960Y 59/67 dB 8 S/N Flag: 9960Z 89/96 dB 29 S/N Flag:

LFR Task State: lfr locked to station 7980W LFR Recent Change Data:

Search List: 5930 5990 7980 8290 8970 9940 9610 9960 >

PLL GRI: 7980W LFR Master, reset not needed, not the reference source. CSM>

49 dB –4S/N Flag:E

ag:

This must be greater than 100 before LFR becomes a valid source.

This shows the LFR is locked to the selected PLL station.

This search list and PLL data must match the configuration for the geographical location of the cell site.

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

. . . continued on next page

3-41

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

Table 3-20: LFR Initialization/Verification

Step NoteAction

2 Verify the following LFR information (highlighted above in boldface type):

– Locate the “dot” that indicates the current phase locked station assignment (assigned by MM). – Verify that the station call letters are as specified in site documentation as well as M X Y Z

assignment.

3 At the CSM> prompt, enter sources <cr> to display the current status of the the LORAN receiver.

4 LORAN–C LFR information (highlighted above in boldface type) is usually the #1 reference source

– Verify the signal to noise (S/N) ratio of the phase locked station is greater than 8.

– Observe the following typical response.

Num Source Name Type TO Good Status Last Phase Target Phase Valid

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

0 Local GPS Primary 4 Yes Good –3 0 Yes 1 LFR ch A Secondary 4 Yes 2 Not used

Current reference source number: 1

Good –2013177 –2013177 Yes

(verified from left to right).

* IMPORTANT

If any of the above mentioned areas fail, verify:

– The LFR antenna is not obstructed or misaligned. – The antenna pre–amplifier power and calibration twisted pair connections are intact and < 91.4 m

(300 ft) in length.

– A dependable connection to suitable Earth Ground is in place. – The search list and PLL station for cellsite location are correctly configured .

NOTE

LFR functionality should be verified using the “source” command (as shown in Step 3). Use the underlined

5 Close the Hyperterminal window.

responses on the LFR row to validate correct LFR operation.

3-42

SCt4812T CDMA BTS Optimization/ATP

Mar 2001

DRAFT

CSM System Time/GPS and LFR/HSO Verification – continued

HSO Initialization/Verification

The HSO module is a full–size card that resides in the C–CCP Shelf. This completely self contained high stability 10 MHz oscillator interfaces with the CSM via a serial communications link. The CSM handles the overall configuration and status monitoring functions of the HSO. In the event of GPS failure, the HSO is capable of maintaining synchronization initially established by the GPS reference signal for a limited time.

The HSO is typically installed in those geographical areas not covered by the LORAN–C system and provides the following major functions:

 Reference oscillator temperature and phase lock monitor circuitry  Generates a highly stable 10 MHz sine wave.  Reference divider circuitry converts 10 MHz sine wave to 10 MHz

TTL signal, which is divided to provide a 1 PPS strobe to the CSM.

Prerequisites

 The LMF is not logged into the BTS.  The COM1 port is connected to the MMI port of the primary CSM via

a null modem board.

 The primary CSM and the HSO (if equipped) have warmed up for 15

minutes.

If the BTS is equipped with an HSO, follow the procedure in Table 3-21 to configure the HSO.

Table 3-21: HSO Initialization/Verification

Step Action

1 At the BTS, slide the HSO card into the cage.

NOTE

The LED on the HSO should light red for no longer than 15-minutes, then switch to green. The CSM must be locked to GPS.

2 On the LMF at the CSM> prompt, enter sources <cr>.

– Observe the following typical response for systems equipped with HSO:

Num Source Name Type TO Good Status Last Phase Target Phase Valid

0 Local GPS Primary 4 Yes Good 0 0 Yes 1 HSO Backup 4 Yes N/A xxxxxxx –69532 Yes 2 Not used

Current reference source number: 0

When the CSM is locked to GPS, verify that the HSO “Good” field is Yes and the “Valid” field is Yes.

3 If source “1” is not configured as HSO, enter at the CSM> prompt: ss 1 12 <cr>

Check for Good in the Status field.

4 At the CSM> prompt, enter sources <cr>.

Verify the HSO valid field is Yes. If not, repeat this step until the “Valid” status of Yes is returned. The HSO should be valid within one (1) minute, assuming the DPLL is locked and the HSO Rubidium oscillator is fully warmed.

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

3-43

DRAFT

Test Equipment Set–up

Connecting Test Equipment to the BTS

All test equipment is controlled by the LMF via an IEEE–488/GPIB bus. The LMF requires each piece of test equipment to have a factory set GPIB address. If there is a communications problem between the LMF and any piece of test equipment, verify that the GPIB addresses have been set correctly (normally 13 for a power meter and 18 for a CDMA

analyzer). The following equipment is required to perform optimization:

 LMF  Test set  Directional coupler and attenuator  RF cables and connectors

Refer to Table 3-22 for an overview of connections for test equipment currently supported by the LMF. In addition, see the following figures:

Supported Test Sets

 Figure 3-11 and Figure 3-12 show the test set connections for TX

calibration.

 Figure 3-13 and Figure 3-14 show the test set connections for

optimization/ATP tests.

 Figure 3-15 and Figure 3-16 show typical TX and RX ATP setup with

a directional coupler (shown with and without RFDS).

Optimization and ATP testing may be performed using one of the following test sets:

 CyberTest  Advantest R3465 and HP 437B or Gigatronics Power Meter  Hewlett–Packard HP 8935  Hewlett–Packard HP 8921 (W/CDMA and PCS Interface for

1.7/1.9 GHz) and HP 437B or Gigatronics Power Meter

 Spectrum Analyzer (HP8594E) – optional  Rubidium Standard Timebase – optional

CAUTION

3-44

To prevent damage to the test equipment, all TX test connections must be through the directional coupler and in-line attenuator as shown in the test setup illustrations.

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Equipment Set–up – continued

Test Equipment Reference Chart

Table 3-22 depicts the current test equipment available meeting Motorola standards.

To identify the connection ports, locate the test equipment presently being used in the TEST SETS columns, and read down the column. Where a ball appears in the column, connect one end of the test cable to that port. Follow the horizontal line to locate the end connection(s), reading up the column to identify the appropriate equipment/BTS port.

Table 3-22: Test Equipment Setup

TEST SETS ADDITIONAL TEST EQUIPMENT

SIGNAL

Cyber–

Test

Ad-

vantestHP8935HP8921A

8921

W/PCS

Power

Meter

GPIB Inter-

face LMF

Directional

Coupler & Pad*

BTS

EVEN SECOND

SYNCHRONIZATION

19.6608 MHZ CLOCK

CONTROL

IEEE 488 BUS

TX TEST

CABLESRFIN/OUT

EVEN

SEC REF

TIME

BASE IN

IEEE

488

EVEN SEC

SYNC IN

CDMA

TIME BASE

GPIB HP–IB HP–IB GPIB

INPUT

50–OHMRFIN/OUT

EVEN

SECOND

SYNC IN

EXT

REF IN

EVEN

SECOND

SYNC IN

CDMA

TIME BASE

HP–IB HP–IB

IN/OUTRFIN/OUT

SECOND

SYNC IN

TIME BASE

EVEN

CDMA

SERIAL

PORT

20 DB

PAD

BTS

PORT

SYNC

MONITOR

FREQ

MONITOR

TX1–6

Mar 2001

RX TEST

CABLES

RF GEN

OUT

RF OUT

50–OHM

DUPLEX RX1–6

DUPLEX

OUT

RF OUT

ONLY

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-45

Test Equipment Set–up – continued

Equipment Warm-up

IMPORTANT

Warm-up BTS equipment for a minimum of 60 minutes prior to performing the BTS optimization procedure. This assures BTS site stability and contributes to optimization accuracy. (Time spent running initial power-up, hardware/firmware audit, and BTS download counts as warm-up time.)

Calibrating Cables

Figure 3-10 shows the cable calibration setup for various supported test sets. The left side of the diagram depicts the location of the input and output ports of each test set, and the right side details the set up for each test.

WARNING

Before installing any test equipment directly to any BTS TX OUT connector, verify there are NO CDMA BBX channels keyed. At active sites, have the OMC-R/CBSC place the antenna (sector) assigned to the LPA under test OOS. Failure to do so can result in serious personal injury and/or equipment damage.

. . . continued on next page

3-46

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Equipment Set–up – continued

Figure 3-10: Cable Calibration Test Setup

SUPPORTED TEST SETS

CALIBRATION SET UP

Motorola CyberTest

RF GEN OUTANT IN

Note: The Directional Coupler is not used with the Cybertest Test Set. The TX cable is connected directly to the Cybertest Test Set.

A 10dB attenuator must be used with the short test cable for cable calibration with the CyberTest Test Set. The 10dB attenuator is used only for the cable calibration procedure, not with the test cables for TX calibration and ATP tests.

Hewlett–Packard Model HP 8935

ANT

DUPLEX

OUT

A. SHORT CABLE CAL

B. RX TEST SETUP

N–N FEMALE ADAPTER

SHORT CABLE

TEST

SET

TEST

SET

RX CABLE

Advantest Model R3465

Hewlett–Packard Model HP 8921A

Note: For 800 MHZ only. The HP8921A cannot

be used to calibrate cables for PCS frequencies.

RF OUT

50–OHM

INPUT

50–OHM

FW00089

C. TX TEST SETUP

100–WATT (MIN)

NON–RADIATING

RF LOAD

TX CABLE

DIRECTIONAL COUPLER (30 DB)

20 DB PAD FOR 1.9 GHZ

SHORT CABLE

N–N FEMALE ADAPTER

TX CABLE

TEST

SET

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-47

Test Equipment Set–up – continued

Setup for TX Calibration

Figure 3-11 and Figure 3-12 show the test set connections for TX calibration.

Figure 3-11: TX Calibration Test Setup (CyberTest, HP 8935, and Advantest)

TEST SETS TRANSMIT (TX) SET UP

Motorola CyberTest

FRONT PANEL

NOTE: THE DIRECTIONAL COUPLER IS NOT USED WITH THE CYBERTEST TEST SET. THE TX CABLE IS CONNECTED DIRECTLY TO THE CYBERTEST TEST SET.

IN/OUT

Hewlett–Packard Model HP 8935

HP–IB TO GPIB BOX

100–WATT (MIN) NON–RADIATING RF LOAD

30 DB DIRECTIONAL COUPLER

2O DB PAD (FOR 1.7/1.9 GHZ)

TX TEST CABLE

* A POWER METER CAN BE USED IN PLACE OF THE COMMUNICATIONS TEST SET FOR TX CALIBRATION/AUDIT

POWER

SENSOR

OUT

TEST SET

INPUT/

OUTPUT

PORTS

POWER

METER

(OPTIONAL)*

COMMUNICATIONS

TEST SET

CONTROL

IEEE 488

GPIB BUS

GPIB CABLE

Advantest Model R3465

3-48

TX ANTENNA

PORT OR TX

RFDS

DIRECTIONAL

RF IN/OUT

COUPLERS

BTS

LAN

GPIB CONNECTS TO BACK OF UNIT

INPUT

50–OHM

SCt4812T CDMA BTS Optimization/ATP

10BASET/ 10BASE2 CONVERTER

UNIVERSAL TWISTED

PAIR (UTP) CABLE

(RJ45 CONNECTORS)

DIP SWITCH SETTINGS

BAUD RATE

RS232–GPIB

INTERFACE BOX

DATA FORMAT

GPIB ADRS

RS232 NULL MODEM CABLE

S MODE

G MODE

CDMA

LMF

INTERNAL PCMCIA

ETHERNET CARD

DRAFT

REF FW00094

Mar 2001

Test Equipment Set–up – continued

Figure 3-12: TX Calibration Test Setup HP 8921A W/PCS for 1.7/1.9 GHz

TEST SETS TRANSMIT (TX) SET UP

Hewlett–Packard Model HP 8921A W/PCS Interface

Note: The HP 8921A cannot be used for TX

calibration. A power meter must be used.

100–WATT (MIN) NON–RADIATING RF LOAD

TX TEST CABLE

TX ANTENNA

GROUP OR TX

RFDS

DIRECTIONAL

COUPLERS

30 DB DIRECTIONAL COUPLER

WITH UNUSED PORT TERMINATED

2O DB PAD

POWER

SENSOR

TX TEST CABLE

POWER METER

GPIB CABLE

BTS

LAN

UNIVERSAL TWISTED (RJ45 CONNECTORS)

LAN

10BASET/ 10BASE2 CONVERTER

PAIR (UTP) CABLE

DIP SWITCH SETTINGS

BAUD RATE

RS232–GPIB

INTERFACE BOX

DATA FORMAT

GPIB ADRS G MODE

RS232 NULL MODEM CABLE

CDMA

LMF

INTERNAL PCMCIA

ETHERNET CARD

S MODE

FW00095

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-49

Test Equipment Set–up – continued

Setup for Optimization/ATP

Figure 3-13 and Figure 3-14 show the test set connections for optimization/ATP tests.

Figure 3-13: Optimization/ATP Test Setup Calibration (CyberTest, HP 8935 and Advantest)

TEST SETS Optimization/ATP SET UP

Motorola CyberTest

SYNC MONITOR

EVEN SEC TICK

PULSE REFERENCE

FROM CSM BOARD

FREQ MONITOR

19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD

IN/OUT

OUT

NOTE: IF BTS RX/TX SIGNALS ARE DUPLEXED (4800E): BOTH THE TX AND RX TEST CABLES CONNECT TO THE DUPLEXED ANTENNA GROUP.

RX TEST CABLE

100–WATT (MIN)

NON–RADIATING

RF LOAD

TEST SET

OUT

INPUT/

OUTPUT

PORTS

CDMA

TIMEBASE

COMMUNICATIONS TEST SET

EVEN SECOND/SYNC IN (BNC “T” WITH 50 OHM

TERMINATOR)

IEEE 488

GPIB BUS

NOTE: The Directional Coupler is not used with the Cybertest Test Set. The TX cable is connected directly to the Cybertest Test set.

Hewlett–Packard Model HP 8935

SYNC MONITOR

EVEN SEC TICK

PULSE REFERENCE

FROM CSM BOARD

FREQ MONITOR

19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD

HP–IB TO GPIB BOX

30 DB

DIRECTIONAL COUPLER

RX ANTENNA

PORT OR RFDS

RX ANTENNA

DIRECTIONAL

COUPLER

TX TEST CABLE

TX ANTENNA

PORT OR RFDS

RX ANTENNA

DIRECTIONAL

COUPLER

2O DB PAD (FOR 1.7/1.9 GHZ)

GPIB CABLE

DUPLEX OUT

Advantest Model R3465

SYNC MONITOR EVEN SEC TICK

PULSE REFERENCE

FROM CSM BOARD

FREQ MONITOR

19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD

3-50

BTS

RF IN/OUT

FREQ

MONITOR

SYNC

MONITOR

CSM

LAN

RF OUT

GPIB CONNECTS

TO BACK OF UNIT

INPUT

50–OHM

SCt4812T CDMA BTS Optimization/ATP

10BASET/ 10BASE2 CONVERTER

UNIVERSAL TWISTED

PAIR (UTP) CABLE

(RJ45 CONNECTORS)

DIP SWITCH SETTINGS

BAUD RATE

RS232–GPIB

INTERFACE BOX

INTERNAL PCMCIA

ETHERNET CARD

DRAFT

DATA FORMAT

GPIB ADRS G MODE

S MODE

RS232 NULL MODEM CABLE

CDMA

LMF

REF FW00096

Mar 2001

Test Equipment Set–up – continued

Figure 3-14: Optimization/ATP Test Setup HP 8921A

TEST SETS Optimization/ATP SET UP

Hewlett–Packard Model HP 8921A W/PCS Interface (for 1700 and 1900 MHz)

SYNC MONITOR

EVEN SEC TICK

PULSE REFERENCE

FROM CSM BOARD

FREQ MONITOR

19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD

IN/OUT

RF OUT

ONLY

GPIB

CONNECTS

TO BACK OF

UNITS

Hewlett–Packard Model HP 8921A (for 800 MHz)

SYNC MONITOR

EVEN SEC TICK

PULSE REFERENCE

FROM CSM BOARD

IN/OUT

FREQ MONITOR

19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD

RF OUT

ONLY

GPIB

CONNECTS

TO BACK OF

UNIT

NOTE: IF BTS RX/TX SIGNALS ARE DUPLEXED (4800E): BOTH THE TX AND RX TEST CABLES CONNECT TO THE DUPLEXED ANTENNA GROUP.

100–WATT (MIN)

RX TEST CABLE

30 DB

DIRECTIONAL COUPLER

RX ANTENNA

PORT OR RFDS

RX ANTENNA DIRECTIONAL

COUPLER

NON–RADIATING

RF LOAD

TX TEST CABLE

TX ANTENNA

PORT OR RFDS

RX ANTENNA

DIRECTIONAL

COUPLER

2O DB PAD (FOR 1.7/1.9 GHZ)

BTS

FREQ

MONITOR

SYNC

MONITOR

CSM

LAN

10BASET/ 10BASE2 CONVERTER

OUT

TEST SET

INPUT/

OUTPUT

PORTS

COMMUNICATIONS TEST SET

CDMA

TIMEBASE

DIP SWITCH SETTINGS

BAUD RATE

RS232–GPIB

INTERFACE BOX

EVEN SECOND/SYNC IN (BNC “T” WITH 50 OHM TERMINATOR)

IEEE 488

GPIB BUS

HP PCS

INTERFACE*

* FOR 1700 AND

1900 MHZ ONLY

GPIB CABLE

DATA FORMAT

GPIB ADRS G MODE

S MODE

RS232 NULL MODEM CABLE

Mar 2001

UNIVERSAL TWISTED

PAIR (UTP) CABLE

(RJ45 CONNECTORS)

SCt4812T CDMA BTS Optimization/ATP

INTERNAL PCMCIA

ETHERNET CARD

DRAFT

CDMA

LMF

REF FW00097

3-51

Test Equipment Set–up – continued

Figure 3-15: Typical TX ATP Setup with Directional Coupler (shown with and without RFDS)

TX ANTENNA DIRECTIONAL COUPLERS

COBRA RFDS Detail

TX RF FROM BTS FRAME

RF FEED LINE TO DIRECTIONAL COUPLER REMOVED

(RFM TX)

(RFM RX)

RFDS RX (RFM TX) COUPLER OUTPUTS TO RFDS FWD(BTS) ASU2 (SHADED) CONNECTORS

Connect TX test cable between Appropriate test sets and the port names for all model test sets are described in Table 3-22.

COMMUNICATIONS TEST SET

40W NON–RADIATING

RF LOAD

the directional coupler input port

and the appropriate TX antenna

directional coupler connector.

NOTE:

THIS SETUP APPLIES TO BOTH STARTER AND EXPANSION FRAMES.

TEST DIRECTIONAL COUPLER

TX TEST CABLE

OUTPUT

PORT

ONE 20 DB 20 W IN LINE

RVS (REFLECTED)

PORT 50–OHM

TERMINATION

(INCIDENT)

ATTENUATOR

FWD

PORT

30 DB

DIRECTIONAL

COUPLER

BTS INPUT PORT

FW00116

TX TEST CABLE

3-52

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Equipment Set–up – continued

Figure 3-16: Typical RX ATP Setup with Directional Coupler (shown with or without RFDS)

RX ANTENNA DIRECTIONAL COUPLERS

RX RF FROM BTS FRAME

Appropriate test sets and the port names for all model test sets are described in Table 3-22.

COMMUNICATIONS TEST SET

OUT

(RFM TX)

(RFM RX)

COBRA RFDS Detail

RFDS TX (RFM RX) COUPLER OUTPUTS TO RFDS FWD(BTS) ASU1 (SHADED) CONNECTORS

RF FEED LINE TO TX ANTENNA REMOVED

Connect RX test cable between the test set and the appropriate RX antenna directional coupler.

NOTE:

THIS SETUP APPLIES TO BOTH STARTER AND EXPANSION FRAMES.

RX Test Cable

FW00115

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-53

Test Set Calibration

Test Set Calibration Background

Proper test equipment calibration ensures that the test equipment and associated test cables do not introduce measurement errors, and that measurements are correct.

NOTE

This procedure must be performed prior to beginning the optimization. Verify all test equipment (including all associated test cables and adapters actually used to interface all test equipment and the BTS) has been calibrated and maintained as a set.

If the test set being used to interface with the BTS has been calibrated and maintained as a set, this procedure does not need to be performed. (Test Set includes LMF terminal, communications test set, additional test equipment, associated test cables, and adapters.)

Purpose of Test Set Calibration

CAUTION

If any piece of test equipment, test cable, or RF adapter, that makes up the calibrated test equipment set, has been replaced, re-calibration must be performed. Failure to do so can introduce measurement errors, resulting in incorrect measurements and degradation to system performance.

IMPORTANT

These procedures access the LMF automated calibration routine used to determine the path losses of the supported communications analyzer, power meter, associated test cables, and (if used) antenna switch that make up the overall calibrated test set. After calibration, the gain/loss offset values are stored in a test measurement offset file on the LMF.

Calibration of the communications test set (or equivalent test equipment) must be performed at the site before calibrating the overall test set. Calibrate the test equipment

after it has been allowed to warm–up and stabilize for a minimum of 60 minutes.

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DRAFT

Mar 2001

Test Set Calibration – continued

Selecting Test Equipment

Manually Selecting Test Equipment in a Serial Connection Tab

Use LMF Options from the Options menu list to select test equipment automatically (using the autodetect feature) or manually.

A Serial Connection and a Network Connection tab are provided for test equipment selection. The Serial Connection tab is used when the test equipment items are connected directly to the LMF computer via a GPIB box (normal setup). The Network Connection tab is used when the test equipment is to be connected remotely via a network connection.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 Test equipment is correctly connected and turned on.  CDMA LMF computer serial port and test equipment are connected to

the GPIB box.

Test equipment can be manually specified before, or after, the test equipment is connected. The LMF does not check to see if the test equipment is actually detected for manual specification. Follow the procedure in Table 3-23 to select test equipment manually.

Table 3-23: Selecting Test Equipment Manually in a Serial Connection Tab

 Step Action

1 From the Options menu, select LMF Options.

The LMF Options window appears. 2 Click on the Serial Connection tab (if not in the forefront). 3 Select the correct serial port in the COMM Port pick list (normally COM1). 4 Click on the Manual Specification button (if not enabled). 5 Click on the check box corresponding to the test item(s) to be used. 6 Type the GPIB address in the corresponding GPIB address box.

Recommended Addresses

13=Power Meter

18=CDMA Analyzer 7 Click on Apply. (The button darkens until the selection has been committed.)

8 Click on Dismiss to close the test equipment window.

Mar 2001

NOTE

With manual selection, the LMF does not detect the test equipment to see if it is connected and

communicating with the LMF.

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-55

Test Set Calibration – continued

Automatically Selecting Test Equipment in a Serial Connection Tab

When using the auto-detection feature to select test equipment, the LMF examines which test equipment items are actually communicating with the LMF. Follow the procedure in Table 3-24 to use the auto-detect feature.

Table 3-24: Selecting Test Equipment Using Auto-Detect

 Step Action

1 From the Options menu, select LMF Options.

The LMF Options window appears. 2 Click on the Serial Connection tab (if not in the forefront). 3 Select the correct serial port in the COMM Port pick list (normally COM1). 4 Click on Auto–Detection (if not enabled). 5 Type in the GPIB addresses in the box labeled GPIB address to search (if not already displayed).

NOTE

When both a power meter and analyzer are selected, the first item listed in the GPIB addresses to

search box is used for RF power measurements (i.e., TX calibration). The address for a power

meter is normally 13 and the address for a CDMA analyzer is normally 18. If 13,18 is included in

the GPIB addresses to search box, the power meter (13) is used for RF power measurements. If

the test equipment items are manually selected the CDMA analyzer is used only if a power meter

is not selected. 6 Click on Apply.

NOTE

The button darkens until the selection has been committed. A check mark appears in the Manual

Configuration section for detected test equipment items. 7 Click Dismiss to close the LMF Options window.

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DRAFT

Mar 2001

Test Set Calibration – continued

Calibrating Test Equipment

Table 3-25: Test Equipment Calibration

The calibrate test equipment function zeros the power measurement level of the test equipment item that is to be used for TX calibration and audit. If both a power meter and an analyzer are connected, only the power meter is zeroed.

Use the Calibrate Test Equipment menu item from the Util menu to calibrate test equipment. The test equipment must be selected before calibration can begin. Follow the procedure in Table 3-25 to calibrate the test equipment.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 Test equipment to be calibrated has been connected correctly for tests

that are to be run.

 Test equipment has been selected.

 Step Action

1 From the Util menu, select Calibrate Test Equipment.

A Directions window is displayed. 2 Follow the directions provided. 3 Click on Continue to close the Directions window.

A status report window is displayed. 4 Click on OK to close the status report window.

Calibrating Cables

The cable calibration function measures the loss (in dB) for the TX and RX cables that are to be used for testing. A CDMA analyzer is used to measure the loss of each cable configuration (TX cable configuration and RX cable configuration). The cable calibration consists of the following:

 Measuring the loss of a short cable – This is required to compensate

for any measurement error of the analyzer. The short cable (used only for the calibration process) is used in series with both the TX and RX cable configuration when measuring. The measured loss of the short cable is deducted from the measured loss of the TX and RX cable configuration to determine the actual loss of the TX and RX cable configurations. The result is then adjusted out of both the TX and RX measurements to compensate for the measured loss.

Mar 2001

 The short cable plus the RX cable configuration loss is measured –

The RX cable configuration normally consists only of a coax cable with type-N connectors that is long enough to reach from the BTS RX port of the test equipment.

. . . continued on next page

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-57

Test Set Calibration – continued

Calibrating Cables with a CDMA Analyzer

 The short cable plus the TX cable configuration loss is measured –

The TX cable configuration normally consists of two coax cables with type-N connectors and a directional coupler, a load, and an additional attenuator (if required by the specified BTS). The total loss of the path loss of the TX cable configuration must be as required for the BTS (normally 30 or 50 dB).

Cable Calibration is used to calibrate both TX and RX test cables. Follow the procedure in Table 3-26 to calibrate the cables. Figure 3-10 illustrates the cable calibration test equipment setup. Appendix F covers the procedures for manual cable calibration.

NOTE

LMF cable calibration for PCS systems (1.7/1.9 GHz) cannot be accomplished using an HP8921 analyzer with PCS interface or an Advantest analyzer. A different analyzer type or the signal generator and spectrum analyzer method must be used (refer to Table 3-27 and Figure 3-17). Cable calibration values are then manually entered.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 Test equipment to be calibrated has been connected correctly for cable

calibration.

 Test equipment has been selected and calibrated.

Table 3-26: Cable Calibration

 Step Action

1 From the Util menu, select Cable Calibration.

A Cable Calibration window is displayed. 2 Enter a channel number(s) in the Channels box.

NOTE

Multiple channels numbers must be separated with a comma, no space (i.e., 200,800). When two

or more channels numbers are entered, the cables are calibrated for each channel. Interpolation is

accomplished for other channels as required for TX calibration. 3 Select TX and RX Cable Cal, TX Cable Cal, or RX Cable Cal in the Cable Calibration pick

list. 4 Click OK. Follow the direction displayed for each step.

A status report window displays the results of the cable calibration.

3-58

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Set Calibration – continued

Calibrating TX Cables Using a Signal Generator and Spectrum Analyzer

Table 3-27: Calibrating TX Cables Using Signal Generator and Spectrum Analyzer

Follow the procedure in Table 3-27 to calibrate the TX cables using a signal generator and spectrum analyzer. Refer to Figure 3-17 for a diagram of the signal generator and spectrum analyzer.

 Step Action

1 Connect a short test cable between the spectrum analyzer and the signal generator. 2 Set signal generator to 0 dBm at the customer frequency of:

– 869–894 MHz for 800 MHz CDMA – 1930–1990 MHz for North American PCS. – 1840–1870 MHz for KoreaN PCS

3 Use a spectrum analyzer to measure signal generator output (see Figure 3-17, A) and record the

value. 4 Connect the spectrum analyzer’s short cable to point B, (as shown in the lower right portion of the

diagram) to measure cable output at customer frequency of:

– 869–894 MHz for 800 MHz CDMA – 1930–1990 MHz for North American PCS. – 1840–1870 MHz for Korean PCS

Record the value at point B. 5 Calibration factor = A – B

Example: Cal = –1 dBm – (–53.5 dBm) = 52.5 dB

NOTE

The short cable is used for calibration only. It is not part of the final test setup. After calibration is

completed, do not re-arrange any cables. Use the equipment setup, as is, to ensure test procedures

use the correct calibration factor.

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-59

Test Set Calibration – continued

Figure 3-17: Calibrating Test Equipment Setup for TX BLO and TX ATP Tests (using Signal Generator and Spectrum Analyzer)

Signal

Generator

Spectrum

Analyzer

SHORT TEST CABLE

40W NON–RADIATING

RF LOAD

THIS WILL BE THE CONNECTION TO

THE TX PORTS DURING TX BAY LEVEL

OFFSET TEST AND TX ATP TESTS.

Spectrum

Analyzer

THIS WILL BE THE CONNECTION TO THE HP8481A POWER SENSOR DURING TX BAY LEVEL OFFSET TEST AND TO THE PCS INTERFACE BOX INPUT PORT DURING TX ATP TESTS.

SHORT TEST CABLE

ONE 20DB 20 W IN LINE ATTENUATOR

Calibrating RX Cables Using a Signal Generator and Spectrum Analyzer

Follow the procedure in Table 3-28 to calibrate the RX cables using the signal generator and spectrum analyzer. Refer to Figure 3-18, if required.

Table 3-28: Calibrating RX Cables Using a Signal Generator and Spectrum Analyzer

 Step Action

1 Connect a short test cable to the spectrum analyzer and connect the other end to the Signal

Generator. 2 Set signal generator to –10 dBm at the customer’s RX frequency of:

– 824–849 for 800 MHz CDMA – 1850–1910 MHz band for North American PCS – 1750–1780 MHz for Korean PCS

50 OHM TERMINATION

30 DB

DIRECTIONAL

COUPLER

CABLE FROM 20 DB @ 20W ATTENUATOR TO THE PCS INTERFACE OR THE HP8481A POWER SENSOR.

Signal

Generator

FW00293

3-60

3 Use spectrum analyzer to measure signal generator output (see Figure 3-18, A) and record the

value for A. 4 Connect the test setup, as shown in the lower portion of the diagram to measure the output at the

customer’s RX frequency of:

– 824–849 for 800 MHz CDMA – 1850–1910 MHz band for North American PCS – 1750–1780 MHz for Korean PCS

Record the value at point B.

. . . continued on next page

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Set Calibration – continued

Table 3-28: Calibrating RX Cables Using a Signal Generator and Spectrum Analyzer

 ActionStep

5 Calibration factor = A – B

Example: Cal = –12 dBm – (–14 dBm) = 2 dBm

NOTE

The short test cable is used for test equipment setup calibration only. It is not be part of the final

test setup. After calibration is completed, do not re-arrange any cables. Use the equipment setup,

as is, to ensure test procedures use the correct calibration factor.

Figure 3-18: Calibrating Test Equipment Setup for RX ATP Test (using Signal Generator and Spectrum Analyzer)

Signal

Generator

Spectrum

Analyzer

Signal

Generator

SHORT TEST CABLE

CONNECTION TO THE HP PCS INTERFACE OUTPUT PORT DURING RX MEASUREMENTS.

Spectrum

Analyzer

LONG CABLE 2

CONNECTION TO THE RX PORTS

DURING RX MEASUREMENTS. FW00294

BULLET

CONNECTOR

SHORT TEST CABLE

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-61

Test Set Calibration – continued

Setting Cable Loss Values

Cable loss values for the TX and RX test cable configurations are normally set by accomplishing cable calibration using the applicable test equipment. The resulting values are stored in the cable loss files. The cable loss values can also be set/changed manually. Follow the procedure in Table 3-29 to set cable loss values.

Prerequisites

Step Action

1 Click on the Util menu. 2 Select Edit>Cable Loss>TX or RX.

A data entry pop–up window appears.

3 To add a new channel number, click on the Add Row button, then click in the Channel # and Loss

(dBm) columns and enter the desired values.

4 To edit existing values, click in the data box to be changed and change the value. 5 To delete a row, click on the row and then click on the Delete Row button. 6 To save displayed values, click on the Save button. 7 To exit the window, click on the Dismiss button.

Values entered/changed after the Save button was used are not saved.

 Logged into the BTS

Table 3-29: Setting Cable Loss Values

NOTE

 If cable loss values exist for two different channels, the LMF will interpolate for all other channels.  Entered values are used by the LMF as soon as they are saved. You do not have to logout and login.

3-62

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Test Set Calibration – continued

Setting TX Coupler Loss Value

If an in–service TX coupler is installed, the coupler loss (e.g., 30 dB) must be manually entered so it will be included in the LMF TX calibration and audit calculations. Follow the procedure in Table 3-30 to set TX coupler loss values.

Prerequisites

 Logged into the BTS.

Table 3-30: Setting TX Coupler Loss Value

Step Action

1 Click on the Util menu. 2 Select Edit>TX Coupler Loss. A data entry pop–up window appears. 3 Click in the Loss (dBm) column for each carrier that has a coupler and enter the appropriate value. 4 To edit existing values click in the data box to be changed and change the value. 5 Click on the Save button to save displayed values.

6 Click on the Dismiss button to exit the window.

Values entered/changed after the Save button was used are not saved.

NOTE

 The In–Service Calibration check box in the Options>LMF Options>BTS Options tab must

checked before entered TX coupler loss values are used by the TX calibration and audit functions.

 Entered values are used by the LMF as soon as they are saved. You do not have to logout and login.

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

DRAFT

3-63

Bay Level Offset Calibration

Introduction to Bay Level Offset Calibration

Calibration compensates for normal equipment variations within the BTS and assures maximum measurement accuracy.

RF Path Bay Level Offset Calibration

Calibration identifies the accumulated gain in every transmit path (BBX slot) at the BTS site and stores that value in a BLO database calibration table in the LMF. The BLOs are subsequently downloaded to each BBX.

For starter frames, each receive path starts at a BTS RX antenna port and terminates at a backplane BBX slot. Each transmit path starts at a BBX backplane slot, travels through the LPA, and terminates at a BTS TX antenna port.

For expansion frames each receive path starts at the BTS RX port of the cell site starter frame, travels through the frame-to-frame expansion cable, and terminates at a backplane BBX slot of the expansion frame. The transmit path starts at a BBX backplane slot of the expansion frame, travels though the LPA, and terminates at a BTS TX antenna port of the same expansion frame.

When to Calibrate BLOs

Calibration identifies the accumulated gain in every transmit path (BBX slot) at the BTS site and stores that value in a BLO database. Each transmit path starts at a C–CCP shelf backplane BBX slot, travels through the LPA, and ends at a BTS TX antenna port. When the TX path calibration is performed, the RX path BLO is automatically set to the default value.

At omni sites, BBX slots 1 and 13 (redundant) are tested. At sector sites, BBX slots 1 through 12, and 13 (redundant) are tested. Only those slots (sectors) actually equipped in the current CDF are tested, regardless of physical BBX board installation in the slot.

Calibration of BLOs is required:

 After initial BTS installation  Once each year  After replacing any of the following components or associated

interconnecting RF cabling:

– BBX board – C–CCP shelf – CIO card – CIO to LPA backplane RF cable – LPA backplane – LPA

. . . continued on next page

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SCt4812T CDMA BTS Optimization/ATP

DRAFT

Mar 2001

Bay Level Offset Calibration – continued

– TX filter / TX filter combiner – TX thru-port cable to the top of frame

TX Path Calibration

The TX Path Calibration assures correct site installation, cabling, and the first order functionality of all installed equipment. The proper function of each RF path is verified during calibration. The external test equipment is used to validate/calibrate the TX paths of the BTS.

Before installing any test equipment directly to any TX OUT connector you must first verify that there are no

CDMA channels keyed. Have the OMC–R place the sector assigned to the LPA under test OOS. Failure to do so can result in serious personal injury and/or equipment damage.

WARNING

CAUTION

Always wear a conductive, high impedance wrist strap while handling any circuit card/module. If this is not done, there is a high probability that the card/module could be damaged by ESD.

IMPORTANT

At new site installations, to facilitate the complete test of each CCP shelf (if the shelf is not already fully populated with BBX boards), move BBX boards from shelves currently not under test and install them into the empty BBX slots of the shelf currently being tested to insure that all BBX TX paths are tested.

– This procedure can be bypassed on operational sites

that are due for periodic optimization.

– Prior to testing, view the CDF file to verify the

correct BBX slots are equipped. Edit the file as required to include BBX slots not currently equipped (per Systems Engineering documentation).

Mar 2001

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3-65

Bay Level Offset Calibration – continued

BLO Calibration Data File

During the calibration process, the LMF creates a bts–n.cal calibration (BLO) offset data file in the bts–n folder. After calibration has been completed, this offset data must be downloaded to the BBXs using the Download BLO function. An explanation of the file is shown below.

NOTE

The CAL file is subdivided into sections organized on a per slot basis (a slot Block).

Slot 1 contains the calibration data for the 12 BBX slots. Slot 20 contains the calibration data for the redundant BBX. Each BBX slot header block contains:

Due to the size of the file, Motorola recommends that you print out a hard copy of a bts.cal file and refer to it for the following descriptions.

 A creation Date and Time – broken down into separate parameters of

createMonth, createDay, createYear, createHour, and createMin.

 The number of calibration entries – fixed at 720 entries corresponding

to 360 calibration points of the CAL file including the slot header and actual calibration data.

 The calibration data for a BBX is organized as a large flat array. The

array is organized by branch, sector, and calibration point. – The first breakdown of the array indicates which branch the

contained calibration points are for. The array covers transmit, main receive and diversity receive offsets as follows:

Table 3-31: BLO BTS.cal File Array Assignments

Range Assignment

C[1]–C[240] Transmit C[241]–C[480] Main Receive C[481]–C[720] Diversity Receive

NOTE

Slot 385 is the BLO for the RFDS.

3-66

SCt4812T CDMA BTS Optimization/ATP

. . . continued on next page

DRAFT

Mar 2001

Bay Level Offset Calibration – continued

– The second breakdown of the array is per sector. Configurations

supported are Omni, 3–sector or 6–sector.

Table 3-32: BTS.cal File Array (Per Sector)

BBX Sectorization TX RX RX Diversity

Slot[1] (Primary BBXs 1 through 12)

1 (Omni)

2 3 4 5 6 7 8

9 10 11 12

1 (Omni)

6 Sector,

1st

Carrier

6 Sector,

2nd

Carrier

6 Sector,

1st

Carrier

3–Sector,

1st

Carrier

3–Sector,

3rd

Carrier

3–Sector,

2nd

Carrier

3–Sector,

4th

Carrier

Slot[20]] (Redundant BBX–13)

3–Sector,

1st

Carrier

3–Sector,

3rd

Carrier

C[1]–C[20] C[241]–C[260] C[481]–C[500] C[21]–C[40] C[261]–C[280] C[501]–C[520] C[41]–C[60] C[281]–C[300] C[521]–C[540] C[61]–C[80] C[301]–C[320] C[541]–C[560] C[81]–C[100] C[321]–C[340] C[561]–C[580] C[101]–C[120] C[341]–C[360] C[581]–C[600] C[121]–C[140] C[361]–C[380] C[601]–C[620] C[141]–C[160] C[381]–C[400] C[621]–C[640] C[161]–C[180] C[401]–C[420] C[641]–C[660] C[181]–C[200] C[421]–C[440] C[661]–C[680] C[201]–C[220] C[441]–C[460] C[681]–C[700] C[221]–C[240] C[461]–C[480] C[701]–C[720]

Mar 2001

9 10 11 12

C[121]–C[140] C[361]–C[380] C[601]–C[620] C[141]–C[160] C[381]–C[400] C[621]–C[640] C[161]–C[180] C[401]–C[420] C[641]–C[660] C[181]–C[200] C[421]–C[440] C[661]–C[680] C[201]–C[220] C[441]–C[460] C[681]–C[700] C[221]–C[240] C[461]–C[480] C[701]–C[720]

6 Sector,

2nd

Carrier

3–Sector,

2nd

Carrier

3–Sector,

4th

Carrier

 Ten calibration points per sector are supported for each branch. Two

entries are required for each calibration point.

 The first value (all odd entries) refer to the CDMA channel

(frequency) where the BLO is measured. The second value (all even entries) is the power set level. The valid range for PwrLvlAdj is from 2500 to 27500 (2500 corresponds to –125 dBm and 27500 corresponds to +125 dBm).

SCt4812T CDMA BTS Optimization/ATP

. . . continued on next page

DRAFT

3-67

Bay Level Offset Calibration – continued

 The 20 calibration entries for each sector/branch combination must be

stored in order of increasing frequency. If less than 10 points (frequencies) are calibrated, the largest frequency that is calibrated is repeated to fill out the 10 points.

Example:

C[1]=384, odd cal entry

= 1 ‘‘calibration point”

C[2]=19102, even cal entry

C[3]=777, C[4]=19086, . . C[19]=777, C[20]=19086, (since only two cal points were calibrated this

would be repeated for the next 8 points)

 When the BBX is loaded with image = data, the cal file data for the

BBX is downloaded to the device in the order it is stored in the cal file. TxCal data is sent first, C[1] – C[240]. Sector 1’s ten calibration points are sent (C[1] – C[20]) followed by sector 2’s ten calibration points (C[21] – C[40]), etc. The RxCal data is sent next (C[241] – C[480]), followed by the RxDCal data (C[481] – C[720]).

 Temperature compensation data is also stored in the cal file for each

set.

Test Equipment Setup: RF Path Calibration

Follow the procedure in Table 3-33 to set up test equipment.

Table 3-33: Test Equipment Setup (RF Path Calibration)

Step Action

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.

1 Connect the LMF computer terminal to the BTS LAN A connector on the BTS (if you have not

already done so). Refer to the procedure in Table 3–2 on page 3-6.

 If required, calibrate the test equipment per the procedure in Table 3-25 on page 3-57.  Connect the test equipment as shown in Figure 3-11 and Figure 3-12 starting on page 3-48.

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Bay Level Offset Calibration – continued

TX Path Calibration

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 under the parameter).

ParentSECTOR field of the ParentCARRIER CDF file

ChannelList

NOTE

If both the BTS–x.cdf and CBSC–x.cdf files are current, all information will be correct on the LMF. If not, the carrier and channel will have to be set for each test.

The calibration procedure attempts to adjust the power to within + 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.

0.5 dB

 At sites WITHOUT RFDS option, BLO is approximately

42.0 dB ±4.0 dB. A typical example would be TX output power measured at BTS (36.0 dBm) minus the BBX TX output level (approximately –6.0 dBm) would equate to 42 dB BLO.

The TX Bay Level Offset at sites WITH the directional coupler option, is approximately 41.4 dB ±3.0 dB. TX BLO = Frame Power Output minus BBX output level.

 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.

Mar 2001

The LMF Tests menu list items, TX Calibration and All Cal/Audit, perform the TX BLO Calibration test for a XCVR(s). The All Cal/Audit menu item performs TX calibration, downloads BLO, and performs TX audit if the TX calibration passes. All measurements are made through the appropriate TX output connector using the calibrated TX cable setup.

Prerequisites

Before running this test, ensure that the following have been done:

 CSM–1, GLIs, MCCs, and BBXs have correct code load and data

load.

 Primary CSM and MGLI are INS.  All BBXs are OOS_RAM.  Test equipment and test cables are calibrated and connected for TX

BLO calibration.

 LMF is logged into the BTS.

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Bay Level Offset Calibration – continued

Connect the test equipment as shown in Figure 3-11 and Figure 3-12 and follow the procedure in Table 3-34 to perform the TX calibration test.

WARNING

Before installing any test equipment directly to any TX OUT connector, first verify there are no CDMA BBX

channels keyed. Failure to do so can result in serious personal injury and/or equipment damage.

IMPORTANT

Follow the procedure in Table 3-34 to perform the TX calibration test.

Table 3-34: BTS TX Path Calibration

 Step Action

1 Select the BBX(s) to be calibrated. 2 From the Tests menu, select TX Calibration or 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 Click on OK. 6 Follow the cable connection directions as they are displayed.

A status report window displays the test results.

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

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.

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Exception Handling

In the event of a failure, the calibration procedure displays a FAIL message in the status report window and provides information in the Description field.

Recheck the test setup and connection and re–run the test. If the tests fail again, note specifics about the failure, and refer to Chapter 6, Troubleshooting.

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Bay Level Offset Calibration – continued

Download BLO Procedure

After a successful TX path calibration, download the bay level offset (BLO) calibration file data to the BBXs. BLO data is extracted from the CAL file for the Base Transceiver Subsystem (BTS) and downloaded to the selected BBX devices.

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.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 BBXs being downloaded are OOS–RAM (yellow).  TX calibration is successfully completed.

Follow the procedure in Table 3-35 to download the BLO data to the BBXs.

Table 3-35: Download BLO

 Step Action

1 Select the BBX(s) to be downloaded. 2 From the Device menu, select Download BLO.

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

Mar 2001

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.

IMPORTANT

SCt4812T CDMA 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.

DRAFT

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Bay Level Offset Calibration – continued

TX Path Audit

Perform the calibration audit of the TX paths of all equipped BBX slots, per the procedure in Table 3-36

WARNING

Before installing any test equipment directly to any TX OUT connector, first verify there are no CDMA BBX

channels keyed. Failure to do so can result in serious personal injury and/or equipment damage.

NOTE

If a successful All Cal/Audit was completed, this procedure does not need to be performed, as BLO is downloaded as part of the All Cal/Audit.

TX Audit Test

The Tests menu item, TX Audit, performs the TX BLO Audit test for a BBX(s). All measurements are made through the appropriate TX output connector using the calibrated TX cable setup.

Prerequisites

Before running this test, ensure that the following have been done:

 CSM–1, GLI2s, and BBXs have correct code load and data load.  Primary CSM and MGLI are INS.  All BBXs are OOS_RAM.  Test equipment and test cables are calibrated and connected for TX

BLO calibration.

 LMF is logged into the BTS.

Connect the test equipment as shown in Figure 3-11 and Figure 3-12. Follow the procedure in Table 3-36 to perform the BTS TX Path Audit test.

. . . continued on next page

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Table 3-36: BTS TX Path Audit

 Step Action

1 Select the BBX(s) to be audited. 2 From the Tests menu, select TX 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 Click on OK. 6 Follow the cable connection directions as they are displayed.

A status report window displays the test results.

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

Exception Handling

In the event of a failure, the calibration procedure displays a FAIL message in the Status Report window and provides information in the Description field. Recheck the test setup and connection and re–run the test. If the tests fail again, note specifics about the failure, and refer to Chapter 6, Troubleshooting.

All Cal/Audit Test

The Tests menu item, All Cal/Audit, performs the TX BLO Calibration and Audit test for a XCVR(s). All measurements are made through the appropriate TX output connector using the calibrated TX cable setup.

NOTE

If the TX calibration portion of the test passes, the BLO data is automatically downloaded to the BBX(s) before the audit portion of the test is run.

. . . continued on next page

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Bay Level Offset Calibration – continued

Prerequisites

Before running this test, ensure that the following have been done:

 CSM–1, GLI2s, BBXs have correct code and data loads.  Primary CSM and MGLI2 are INS.  All BBXs are OOS_RAM.  Test equipment and test cables are calibrated and connected for TX

BLO calibration.

 LMF is logged into the BTS.

Follow the procedure in Table 3-37 to perform the All Cal/Audit test.

WARNING

Before installing any test equipment directly to any TX OUT connector, first verify there are no CDMA BBX

channels keyed. Failure to do so can result in serious personal injury and/or equipment damage.

Table 3-37: All Cal/Audit Test

 Step Action

1 Select the BBX(s) to be tested. 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 Click on OK. 6 Follow the cable connection directions as they are displayed.

A status report window displays the test results.

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

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Bay Level Offset Calibration – continued

Create CAL File

The Create Cal File function gets the BLO data from BBXs and creates/updates the CAL file for the BTS. If a CAL file does not exist, a new one is created. If a CAL file already exists, it is updated. After a BTS has been fully optimized, a copy of the CAL file must exist so it can be transferred to the CBSC. If TX calibration has been successfully performed for all BBXs and BLO data has been downloaded, a CAL file exists. Note the following:

 The Create Cal File function only applies to selected (highlighted)

BBXs.

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.

WARNING

Prerequisites

Before running this test, the following should be done:

 LMF is logged into the BTS.  BBXs are OOS_RAM with BLO downloaded.

Table 3-38: Create CAL File

 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.

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RFDS Setup and Calibration

RFDS Description

NOTE

The RFDS is not available for the –48 V BTS at the time of this publication.

The optional RFDS performs RF tests of the site from the CBSC or from an LMF. The RFDS consists of the following elements:

 Antenna Select Unit (ASU)  FWT Interface Card (FWTIC)  Subscriber Unit Assembly (SUA)

For complete information regarding the RFDS, refer to the CDMA RFDS Hardware Installation manual and CDMA RFDS User’s Guide.

The LMF provides the following functions for RFDS equipment:

 TX and RX Calibration  Dekey Test Subscriber Unit (TSU)  Download Test Subscriber Interface Card (TSIC)  Forward Test  Key TSU  Measure TSU Receive Signal Strength Indication (RSSI)  Ping TSU  Program TSU Number Assignment Module (NAM)  Reverse Test

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 RGLI actions (for GLI based RFDS units)  Set ASU  Status TSU

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RFDS Setup and Calibration – continued

RFDS Parameter Settings

The bts-#.cdf file includes RFDS parameter settings that must match the installed RFDS equipment. The paragraphs below describe the editable parameters and their defaults. Table 3-39 explains how to edit the parameter settings.

 RfdsEquip – valid inputs are 0 through 2.

0 = (default) RFDS is not equipped 1 = Non-Cobra/Patzer box RFDS 2 = Cobra RFDS

 TsuEquip – valid inputs are 0 or 1

0 = (default) TSU not equipped 1 = TSU is equipped in the system

 MC1....4 – valid inputs are 0 or 1

0 = (default) Not equipped 1 = Multicouplers equipped in RFDS system

(9600 system RFDS only)

 Asu1/2Equip – valid inputs are 0 or 1

0 = (default) Not equipped 1 = Equipped

 TestOrigDN – valid inputs are ’’’ (default) or a numerical string up to

15 characters. (This is the phone number the RFDS dials when originating a call. A dummy number needs to be set up by the switch, and is to be used in this field.)

NOTE

Any text editor supporting the LMF may be used to open any text files to verify, view, or modify data.

. . . continued on next page

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RFDS Setup and Calibration – continued

Table 3-39: RFDS Parameter Settings

Step Action

* IMPORTANT

Log out of the BTS prior to performing this procedure.

1 Using a text editor, verify the following fields are set correctly in the bts–#.cdf file

(1 = GLI based RFDS; 2 = Cobra RFDS).

EXAMPLE:

RfdsEquip = 2 TsuEquip = 1 MC1Equip = 0 MC2Equip = 0 MC3Equip = 0 MC4Equip = 0 Asu1Equip = 1 Asu2Equip = 0 (1 if system is non-duplexed) TestOrigDN = ’123456789’’

NOTE

The above is an example of the bts-#.cdf file that should have been generated by the OMC and copied to the LMF. These fields will have been set by the OMC if the RFDSPARM database is modified for the RFDS.

2 Save and/or quit the editor. If any changes were made to these fields, data will need to be downloaded

to the GLI2 (see Step 3, otherwise proceed to Step 4).

3 To download to the GLI2, click on the Device menu and select the Download Data menu item

(selected devices do not change color when data is downloaded). A status report window displays the status of the download. Click OK to close the status report window.

! CAUTION

After downloading data to the GLI2, the RFDS LED slowly begins flashing red and green for approximately 2–3 minutes. DO NOT attempt to perform any functions with the RFDS until the LED remains green.

4 Status the RFDS TSU.

A status report window displays the software version number for the TSIC and SUA.

* IMPORTANT

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

 Ensure the AMR cable is correctly connected from the BTS to the RFDS.  Verify the RFDS has power.  Verify the RFDS status LED is green.  Verify fields in the bts-#.cdf file are correct (see Step 1).  Status the MGLI and ensure the device is communicating (via Ethernet) with the LMF, and the

device is in the proper state (INS).

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RFDS TSU NAM Programming

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. The TSU NAM should be configured the same way that any local mobile subscriber would use.

NOTE

Explanation of Parameters used when Programming the TSU NAM

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

The user will only need to program the NAM for the initial install of the RFDS.

The NAM must be programmed into the SUA before it can receive and process test calls, or be used for any type of RFDS test.

Table 3-40 defines the parameters used when editing the tsu.nam file.

Table 3-40: Definition of Parameters

These parameters are obtained from the switch.

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

Do not change.

IMSI_11_12 IMSI_MCC

MIN_1 Phone Number This field is the phone number assigned to the mobile. The ESN and

Mar 2001

SCt4812T CDMA BTS Optimization/ATP

These fields can be 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 should be entered into the switch as well.

NOTE: This field is different from the TestOrigDN field in the

bts.cdf file. The MIN is the phone number of the RFDS subscriber,

and the TestOrigDN is the number is subscriber calls.

DRAFT

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RFDS Setup and Calibration – continued

Valid NAM Ranges

Table 3-41 provides the valid NAM field ranges. If any of the fields are missing or out of range, the RFDS errors out.

Table 3-41: Valid NAM Field Ranges

Valid Range

NAM Field Name

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

Minimum Maximum

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RFDS Setup and Calibration – continued

Set Antenna Map Data

The antenna map data is only used for RFDS tests and is required if an RFDS is installed. Antenna map data does not have to be entered if an RFDS is not installed. The antenna map data must be entered manually. Perform the procedure in Table 3-42 to set the Antenna Map Data.

Prerequisite

 Logged into the BTS

Table 3-42: Set Antenna Map Data

Step Action

1 Click on the Util menu. 2 Select Edit>Antenna Map>TX or RX.

A data entry pop–up window appears.

3 Enter/edit values as required for each carrier.

NOTE

Refer to the Util >Edit–antenna map LMF help screen for antenna map examples.

4 Click on the Save button to save displayed values.

NOTE

Entered values are used by the LMF as soon as they are saved. You do not have to logout and login.

5 Click on the Dismiss button to exit the window.

NOTE

Values entered/changed after using the Save button are not saved.

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RFDS Setup and Calibration – continued

Set RFDS Configuration Data

If an RFDS is installed, the RFDS configuration data must be manually entered. Perform the procedure in Table 3-43 to set the RFDS Configuration Data.

Prerequisite

 Logged into the BTS.

Table 3-43: Set RFDS Configuration Data

Step Action

1 Click on the Util menu. 2 Select Edit>RFDS Configuration>TX or RX.

A data entry pop–up window appears.

3 To add a new antenna number, click on the Add Row button, then click in the other columns and enter

the desired data.

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

IMPORTANT

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

NOTE

Refer to the Util >Edit–RFDS Configuration LMF help screen for RFDS configuration data examples.

5 To delete a row, click on the row and click on the Delete Row button. 6 To save displayed values, click on the Save button.

NOTE

 Entered values are used by the LMF as soon as they are saved. You do not have to logout and login.

7 To exit the window, click on the Dismiss button .

NOTE

Values entered/changed after using the Save button are not saved.

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RFDS Setup and Calibration – continued

RFDS Calibration

The RFDS TX and RX antenna paths must be calibrated to ensure peak performance. The RFDS calibration option calibrates the RFDS TX and RX paths.

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.

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 XCVR. A CDMA signal at the same power level measured by the BTS XCVR is then injected at the RX antenna directional coupler by the RFDS keyed power level and the power level measured at the BTS XCVR is the RFDS RX calibration offset value.

The TX and RX RFDS calibration offset values are written to the CAL file.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 BBXs are INS_TEST.  Cable calibration has been performed  TX calibration has been performed and BLO has been downloaded for

the BTS.

 Test equipment has been connected correctly for a TX calibration.  Test equipment has been selected and calibrated.

Follow the procedure in Table 3-44 to calibrate the TX and RX antenna paths.

Table 3-44: RFDS Calibration Procedure

 Step Action

1 Select the RFDS tab. 2 Select the RFDS menu. 3 Select the RFDS Calibration menu item. 4 Select the appropriate direction (TX or RX) in the Direction pick list. 5 Type the appropriate channel number(s) in the Channel box.

Mar 2001

NOTE

Separate channel numbers with a comma or dash (no spaces) if using more than one channel number (e.g., 247,585,742 or 385–395 for numbers through and including).

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RFDS Setup and Calibration – continued

Table 3-44: RFDS Calibration Procedure

 ActionStep

6 Select the appropriate carrier(s) in the Carriers pick list.

NOTE

Use the <Shift> or <Ctrl> key to select multiple carriers.

7 Select the appropriate Rx branch (Main, Diversity or Both) in the RX Branch pick list.

8 Select the appropriate baud rate (1=9600, 2=14400) in the Rate Set pick list. 9 Click OK.

A status report window is displayed, followed by a Directions pop-up window.

10 Follow the cable connection directions as they are displayed.

A status report window displays the results of the actions.

11 Click on the OK button to close the status report window. 12 Click on the BTS tab. 13 Click on the MGLI. 14 Download the CAL file which has been updated with the RFDS offset data to the selected GLI

device by clicking on Device>Download Data from the tab menu bar and pulldown.

NOTE

The MGLI automatically transfers the RFDS offset data from the CAL file to the RFDS.

Program TSU NAM

Follow the procedure in Table 3-45 to program the TSU NAM. The NAM must be programmed before it can receive and process test calls, or be used for any type of RFDS test.

Prerequisites

Ensure the following prerequisites have been met before proceeding:

 MGLI is INS.  TSU is powered up and has a code load.

Table 3-45: Program the TSU NAM

Step Action

1 Select the RFDS tab. 2 Select the SUA (Cobra RFDS) or TSU (GLI based RFDS). 3 Click on the TSU menu. 4 Click on the Program TSU NAM menu item. 5 Enter the appropriate information in the boxes (see Table 3-40 and Table 3-41). 6 Click on the OK button to display the status report. 7 Click on the OK button to close the status report window.

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BTS Redundancy/Alarm Testing

Objective

This section tests the redundancy options that could be included in the cell site. These tests verify, under a fault condition, that all modules equipped with redundancy switch operations to their redundant partner and resume operation. An example would be to pull the currently active CSM and verify the standby CSM takes over distribution of the CDMA reference signal.

Redundancy covers many BTS modules. Confirm the redundant options included in the BTS, and proceed as required. If the BTS has only basic power supply redundancy, the tests and procedures detailed in the following tables should be bypassed.

 Table 3-48. Miscellaneous Alarm Tests (BTS Frame)  Table 3-49. BBX Redundancy Tests (BTS Frame)  Table 3-50. CSM, GPS, & LFR/HSO Redundancy Alarm Tests  Table 3-51. LPA Redundancy Test

Test Equipment

Redundancy/Alarm Test

 Table 3-52. 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:

 LMF  Communications Test Set

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:

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

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BTS Redundancy/Alarm Testing – continued

Test Equipment Setup

Follow the procedure in Table 3-46 to set up test equipment:

NOTE

All alarm tests are performed using TX antenna 1

Table 3-46: 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 3-2,

page 3-5). 2 Login to the BTS. 3 Set up test equipment for TX Calibration at TXOUT1 (see Figure 3-11 or Figure 3-12).

* IMPORTANT

If site is not equipped for redundancy, remove all GLI2 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>Customer Alarm Inputs>Unequipped.

NOTE

During configuration of MGLI alarm reporting, spurious alarms may report. Allow the BTS to

stabilize for 10 seconds. If any alarms are actively being reported after the BTS has stabilized,

determine the cause before proceeding further.

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BTS Redundancy/Alarm Testing – continued

Power Supply Redundancy

Follow the steps in Table 3-47 to verify redundancy of the power supply modules. Alarms reported by the master GLI (displayed via the alarm monitor) are also verified.

Table 3-47: Power Supply/Converter Redundancy (BTS Frame)

Step Action

1 Select the MGLI (highlight) and from the pulldown menu select:

Device>Set Redundant Sector>None/0

Device>Set Pilot>Only>Carrier–#–1-1

Device>Set Pilot>Only>Carrier–#-1-1 and Pilot Gain = 262

2 Select (highlight) BBX–1 and from the pulldown menu select Device>Key XCVR. 3 Set XCVR gain to 40 and enter the correct XCVR channel number. 4 Remove PS–1 from the power distribution shelf (see Figure 3-19).

– 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 3-20).

– 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>Dekey XCVR

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ВВВВВВ

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AMR

PS–4

PS–5

PS–6

PS–7

PS–8

PS–9

BTS Redundancy/Alarm Testing – continued

REAR

FRONT

PWR/ALM

MODULE

FAN

Figure 3-20: –48 V BTS Power Conversion Shelf

HSO/LFR

CSM–1

CSM–2

Figure 3-19: SC 4812T C–CCP Shelf

19 mm Filler Panel

PS–1

PS–2

CCD–2 CCD–1

REAR

FRONT

38 mm Filler Panel

AMR–2

PWR/ALM

MODULE

FAN

MCC24–7 MCC24–8

MCC24–9 MCC24–10 MCC24–11 MCC24–12

BBX2–7 BBX2–8 BBX2–9

BBX2–10 BBX2–11

303030

BBX2–12

CIO

PS–3

AMR–1 GLI2–1GLI2–2

MCC24–1 MCC24–2

MCC24–3 MCC24–4 MCC24–5 MCC24–6

BBX2–1 BBX2–2 BBX2–3

BBX2–4 BBX2–5

BBX2–6 BBX2–RSwitch

MPC/EMPC–1MPC/EMPC–2

FW00501

Mar 2001

FW00295

be BBX2s or BBX–1Xs.

NOTE: MCCs may be

MCC8Es, MCC24s, or

MCC–1Xs. BBXs may

BTS Redundancy/Alarm Testing – continued

Miscellaneous Alarm/Redundancy Tests

Follow the steps in Table 3-48 to verify alarms reported by the master GLI are displayed via the alarm monitor if a BTS frame module failure occurs.

Table 3-48: 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 3-21 or Figure 3-22).

•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 3-19) 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 3-19) 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 3-19).

•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.

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Figure 3-21: +27 V BTS C-CCP Fan Modules

LATCHES

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

FAN MODULES

FW00130

Figure 3-22: –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

3-90

FAN MODULES

LATCHES

REAR

FRONT

MODULE

PWR/ALM

FAN

REAR

FRONT

MODULE

PWR/ALM

FAN

FAN MODULES

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BTS Redundancy/Alarm Testing – continued

BBX Redundancy

Follow the steps in Table 3-49 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.

Table 3-49: BBX Redundancy Alarms

Step Action

n W ARNING

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>Key Xcvr.

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>Dekey Xcvr. 12 Repeat Steps 1 through 11 for additional BBXs/antennas, if equipped.

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BTS Redundancy/Alarm Testing – continued

CSM, GPS, & LFR/HSO Redundancy/Alarm Tests

Follow the procedure in Table 3-50 to verify the manual redundancy of the CSM, GPS, and LFR/HSO boards. Verification of alarms reported is also covered.

IMPORTANT

Table 3-50: CSM, GPS, & LFR/HSO, Redundancy/Alarm Tests

Step Action

DO NOT perform the procedure in Table 3-50, unless the site is configured with a LORAN–C or HSO timebase as a backup for the GPS.

n W ARNING

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 BBXs assigned to ANT 1 by selecting the BBX and

Device>Key Xcvr.

2 Disconnect the GPS antenna cable, located on top of the BTS frame (see Figure 3-23).

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.

 Verify the BBXs remain keyed and INS.

 Verify no other modules went OOS due to the transfer to LFR/HSO reference.

 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.

 Verify the BBXs remain keyed and INS.

 Verify no other modules went OOS due to the transfer back to the GPS reference.

 Observe the PWR/ALM LEDs on CSM 1 are steady GREEN.

7 Disable CSM 1 and enable CSM 2.

 Various CSM source and clock alarms are now reported and the site comes down.

 Alarms clear when the site comes back up.

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BTS Redundancy/Alarm Testing – continued

Table 3-50: CSM, GPS, & LFR/HSO, Redundancy/Alarm Tests

Step Action

8 Allow the CSM 2 board to go INS_ACT.

 Verify the BBXs are dekeyed and OOS, and the MCCs are OOS_RAM.

 Verify no other modules went OOS due to the transfer to CSM 2 reference.

 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.

* IMPORTANT

DO NOT ENABLE the redundant CSM.

11 Disable CSM 2 and enable CSM 1.

 Various CSM Source and Clock alarms are reported and the site comes down.

 Alarms clear when the site comes back up.

12 De-key the Xcvr by selecting Device>Dekey Xcvr. 13 Allow the CSM 1 board to go INS_ACT.

 Verify the BBXs are de-keyed and OOS.

 Verify no other modules went OOS due to the transfer to CSM 1 reference.

 Observe PWR/ALM LEDs on the CSM 1 front panels are steady GREEN.

14 Disable the primary and redundant BBXs.

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BTS Redundancy/Alarm Testing – continued

Figure 3-23: +27 V SC 4812T Starter Frame I/O Plate

REAR

SPAN I/O ASPAN I/O B

ALARM B

ALARM A

RGD

SPAN I/O A

RGPS

SITE I/O

SPAN I/O B

LFR/

HSO

LIVE TERMINALSLIVE TERMINALS +27 VDC

GND

TX OUT

FRONT

GPS IN

EXP I/O

GPS

LAN OUT

LAN

CAUTION

REF

FW00215

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BTS Redundancy/Alarm Testing – continued

LPA Redundancy Test

Follow the procedure in Table 3-51 to verify redundancy of the LPAs.

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 3-51: LPA Redundancy Test

Step Action

1 From the pulldown menu select:

Device > Set Redundant Sector > None/0

Device > Set Pilot > Only > Carrier–#–1-1

Device > Set Pilot > Only > Carrier–#-1-1 and Pilot Gain = 262

2 Key-up the BBX assigned to the LPAs 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 3-13 for test equipment setup, if required. 4 Push-in and release the breaker supplying the 1st LPA 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 LPA. The overall gain decreases by approximately 6 dB. The process must be

complete before proceeding. 5 Verify:

•The other LPA module did not go OOS due to the loss of the LPA.

•The overall carrier amplitude is reduced by approximately 6 dB and IM suppression on the analyzer

display remains basically unchanged.

•LPA fault message is reported via the MGLI and displayed on the alarm monitor.

6 Re-apply power to the LPA 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 LPA of the pair. 8 De-key the BBX.

n W ARNING

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 LPAs 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.

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BTS Redundancy/Alarm Testing – continued

MGLI/GLI Redundancy Test

CAUTION

This test can only be performed when the MM path is established by the MM (not just with LAPD link connected). Attempting to force the GLIs to “hot swap” under alarm monitor control, when isolated from the MM, causes MGLIs to hang up.

Table 3-52: MGLI/GLI Redundancy Test (with MM Connection Established)

Step Action

NOTE

 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.

 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.

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BTS Alarms Testing

Alarm Test Overview

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 3-24). 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 3-25). 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:

 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.

 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.

 The Clear button clears the Alarm Monitor display. New alarms that

occur after the Clear button is clicked are displayed.

 The Dismiss button dismisses/closes the Alarm Monitor display.

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BTS Alarms Testing – continued

Figure 3-24: Alarm Connector Location and Connector Pin Numbering

FW00301

Purpose

The following procedures verify the customer defined alarms and relay contacts are functioning properly. These tests are performed on all AMR alarms/relays in a sequential manner until all have been verified. Perform these procedures periodically to ensure the external alarms are reported properly. Following these procedures ensures continued peak system performance.

Test Equipment

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.

IMPORTANT

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:

 LMF  Alarms Test Box (CGDSCMIS00014) –optional

. . . continued on next page

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BTS Alarms Testing – continued

Figure 3-25: AMR Connector Pin Numbering

NOTE

Abbreviations used in the following figures and tables are defined as:

 NC = normally closed  NO = normally open  COM or C = common  CDO = Customer Defined (Relay) Output  CDI = Customer Defined (Alarm) Input

A CDI 18 . . . A CDI 1

60 2

59 1

ALARM A

Returns

(AMR 1)

CDI Alarm Input Verification with Alarms Test Box

Returns

60 2

59 1

ALARM B

(AMR 2)

B CDI 36 . . . B CDI 19

FW00302

NOTE

The preferred method to verify alarms is to follow the Alarms Test Box Procedure, Table 3-53. If not using an Alarm Test Box, follow the procedure listed in Table 3-54.

Table 3-53 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 3-53: 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.

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BTS Alarms Testing – continued

Table 3-53: CDI Alarm Input Verification Using the Alarms Test Box

Step Action

3 Click on the Device menu. 4 Click on the Customer Alarm Inputs menu item. 5 Click on N.O. Inputs.

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 3-24). 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

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 Customer Alarm Inputs menu item. 19 Click on N.C. Inputs. 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.

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SCt4812T CDMA BTS Optimization/ATP

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BTS Alarms Testing – continued

Table 3-53: CDI Alarm Input Verification Using the Alarms Test Box

Step Action

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 Customer Alarm Inputs 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.

37 Disconnect the alarms test box from the ALARM A connector. 38 Connect the alarms test box to the ALARM B connector. 39 Set all switches on the alarms test box to both the Open and the Closed position.

No alarm should be reported for any switch settings.

40 Disconnect the alarms test box from the ALARM B connector. 41 Load data to the MGLI to reset the alarm relay conditions according to the CDF file.

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BTS Alarms Testing – continued

CDI Alarm Input Verification without Alarms Test Box

Table 3-54 describes how to test the CDI alarm input verification without the use of the Alarms Test Box. Follow the steps as instructed and compare results with the LMF display.

NOTE

It may take a few seconds for alarms to be reported. The default delay is 5 seconds. When shorting alarm pins wait for the alarm report before removing the short.

Table 3-54: 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 Customer Alarm Inputs menu item. 5 Click on N.O. Inputs.

A status report window displays the results of the action. 6 Click on OK to close the status report window. 7 Refer to Figure 3-25 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 3-25 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 Customer Alarm Inputs menu item. 12 Click on N.C. Inputs.

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.

. . . continued on next page

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BTS Alarms Testing – continued

Table 3-54: CDI Alarm Input Verification Without the Alarms Test Box

Step Action

14 Refer to Figure 3-25 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 3-25 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 Customer Alarm Inputs 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 3-25 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 3-25 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.

Pin and Signal Information for Alarm Connectors

Table 3-55 lists the pins and signal names for Alarms A and B.

Table 3-55: Pin and Signal Information for Alarm Connectors

ALARM A ALARM B

Pin Signal Name Pin Signal Name Pin Signal Name Pin Signal Name

1 A CDO1 NC 31 Cust Retn 4 1 B CDO9 NC 31 B CDI 22 2 A CDO1 Com 32 A CDI 4 2 B CDO9 Com 32 Cust Retn 22 3 A CDO1 NO 33 Cust Retn 5 3 B CDO9 NO 33 B CDI 23 4 A CDO2 NC 34 A CDI 5 4 B CDO10 NC 34 Cust Retn 23 5 A CDO2 Com 35 Cust Retn 6 5 B CDO10 Com 35 B CDI 24 6 A CDO2 NO 36 A CDI 6 6 B CDO10 NO 36 Cust Retn 24

. . . continued on next page

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BTS Alarms Testing – continued

Table 3-55: Pin and Signal Information for Alarm Connectors

ALARM A ALARM B

Pin Signal NamePinSignal NamePinSignal NamePinSignal Name

7 A CDO3 NC 37 Cust Retn 7 7 B CDO11 NC 37 B CDI 25 8 A CDO3 Com 38 A CDI 7 8 B CDO11 Com 38 Cust Retn 25 9 A CDO3 NO 39 Cust Retn 8 9 B CDO11 NO 39 B CDI 26

10 A CDO4 NC 40 A CDI 8 10 B CDO12 NC 40 Cust Retn 26 11 A CDO4 Com 41 Cust Retn 9 11 B CDO12 Com 41 B CDI 27 12 A CDO4 NO 42 A CDI 9 12 B CDO12 NO 42 Cust Retn 27 13 A CDO5 NC 43 Cust Retn 10 13 B CDO13 NC 43 B CDI 28 14 A CDO5 Com 44 A CDI 10 14 B CDO13 Com 44 Cust Retn 28 15 A CDO5 NO 45 Cust Retn 11 15 B CDO13 NO 45 B CDI 29 16 A CDO6 NC 46 A CDI 11 16 B CDO14 NC 46 Cust Retn 29 17 A CDO6 Com 47 Cust Retn 12 17 B CDO14 Com 47 B CDI 30 18 A CDO6 NO 48 A CDI 12 18 B CDO14 NO 48 Cust Retn 30 19 A CDO7 NC 49 Cust Retn 13 19 B CDO15 NC 49 B CDI 31 20 A CDO7 Com 50 A CDI 13 20 B CDO15 Com 50 Cust Retn 31 21 A CDO7 NO 51 Cust Retn 14 21 B CDO15 NO 51 B CDI 32 22 A CDO8 NC 52 A CDI 14 22 B CDO16 NC 52 Cust Retn 32 23 A CDO8 Com 53 Cust Retn 15 23 B CDO16 Com 53 B CDI 33 24 A CDO8 NO 54 A CDI 15 24 B CDO16 NO 54 Cust Retn 33 25 Cust Retn 1 55 Cust Retn 16 25 B CDI 19 55 B CDI 34 26 A CDI 1 56 A CDI 16 26 Cust Retn 19 56 Cust Retn 34 27 Cust Retn 2 57 Cust Retn 17 27 B CDI 20 57 B CDI 35 28 A CDI 2 58 A CDI 17 28 Cust Retn 20 58 Cust Retn 35 29 Cust Retn 3 59 Cust Retn 18 29 B CDI 21 (+27 V)

Converter Alarm (–48 V)

30 A CDI 3 60 A CDI 18 30 Cust Retn 21 (+27 V)

Converter Retn (–48V)

59 B CDI 36

60 Cust Retn 36

NOTE

CDO = Customer Defined Output CDI = Customer Defined Input

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Chapter 4: Automated Acceptance Test Procedure (ATP)

Table of Contents

Automated Acceptance Test Procedures – All–inclusive TX & RX 4-1. . . . . . . . .

Introduction 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ATP Test Prerequisites 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX OUT Connection 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ATP Test Procedure 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX Output Acceptance Tests: Introduction 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Individual Acceptance Tests 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX Spectral Purity Transmit Mask Acceptance Test 4-6. . . . . . . . . . . . . . . . . . . . .

Tx Mask Test 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX Waveform Quality (rho) Acceptance Test 4-8. . . . . . . . . . . . . . . . . . . . . . . . . .

Rho Test 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX Pilot Time Offset Acceptance Test 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pilot Offset Acceptance Test 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TX Code Domain Power/Noise Floor Acceptance Test 4-10. . . . . . . . . . . . . . . . . . .

Code Domain Power Test 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RX Frame Error Rate (FER) Acceptance Test 4-12. . . . . . . . . . . . . . . . . . . . . . . . . .

FER Test 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Generate an ATP Report 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Background 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ATP Report 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Table of Contents – continued

Notes

SCt4812T CDMA BTS Optimization/ATP

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Automated Acceptance Test Procedures – All–inclusive TX & RX

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, R15.X (68P09251A59).

IMPORTANT

Customer requirements determine which ATP tests to are to be performed, and the craftsperson selects the appropriate ATP tests to run.

The tests can be run individually or as one of the following groups:

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.

NOTE

Refer to Chapter 3 for detailed information on test set connections for calibrating equipment, cables and other test set components, if required.

 All TX: 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 filters, and RF cables.

 All RX: RX tests verify the performance of the BTS receiver line up.

These include the MPC (for starter frames), EMPC (for expansion frames), CIO, BBX, MCC, and GLI cards and the passive components including RX filters (starter frame only), and RF cables.

. . . continued on next page

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4-1

Automated Acceptance Test Procedure – All–inclusive TX & RX – continued

 All TX/RX: Executes all the TX and RX tests.  Full Optimization: Executes the TX calibration, downloads the BLO,

and executes the TX audit before running all of the TX and RX tests.

ATP Test Prerequisites

Before attempting to run any ATP tests, ensure the following have been completed:

 BTS has been optimized and calibrated (see Chapter 3).  LMF is logged into the BTS.  CSMs, GLIs, BBXs, MCCs, and TSU (if the RFDS is installed) have

correct code load and data load.

 Primary CSM, GLI, and MCCs are INS_ACT.  BBXs are calibrated and BLOs are downloaded.  BBXs are OOS_RAM.  Test cables are calibrated.  Test equipment is connected for ATP tests (see Figure 3-13 through

Figure 3-16 starting on page 3-50).

 Test equipment has been warmed up 60 minutes and calibrated.  GPIB is on.

WARNING

Before performing the FER, be sure that all LPAs are turned OFF (circuit breakers pulled) or that all transmitter ports are properly terminated.

All transmit ports must be properly terminated for all ATP tests.

Failure to observe these warnings may result in bodily injury or equipment damage.

TX OUT Connection

4-2

IMPORTANT

SCt4812T CDMA BTS Optimization/ATP

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.

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Automated Acceptance Test Procedure – All–inclusive TX & RX – continued

ATP Test Procedure

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.

 ATP Testing Option 1

– All TX/RX

 ATP Testing Option 2

– All TX – All RX

 ATP Testing Option 3

– TX Mask Test – Rho Test – Pilot Time Offset Test – Code Domain Power Test – FER Test

NOTE

The Full Optimization test can be run if you want the TX path calibrated before all the TX and RX tests are run.

IMPORTANT

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

Table 4-1: ATP Test Procedure

 Step Action

1 Select the device(s) to be tested.

If manual testing has been performed with the HP analyzer, remove the manual control/system memory card from the card slot and set the I/O Config to the Talk & Lstn mode before starting the automated testing.

NOTE

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

2 From the Tests menu, select the test you want to run. 3 Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier

Mar 2001

pick list.

NOTE

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

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Automated Acceptance Test Procedure – All–inclusive TX & RX – continued

Table 4-1: ATP Test Procedure

 ActionStep

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

The default channel number displayed is determined by the CdmaChans[n] number in the cbsc–n.cdf file for the BTS.

5 Click on the OK button.

The status report window and a Directions pop-up are displayed.

6 Follow the cable connection directions as they are displayed.

The test results are displayed in the status report window.

7 Click on Save Results or Dismiss.

NOTE

If Dismiss is used, the test results will not be saved in the test report file.

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TX Output Acceptance Tests: Introduction

Individual Acceptance Tests

The following individual tests can be used to verify the results of specific tests.

Spectral Purity TX Mask (Primary & Redundant BBX)

This test verifies that the transmitted CDMA carrier waveform generated on each sector meets the transmit spectral mask specification with respect to the assigned CDF file values.

Waveform Quality (rho)

This test verifies that the transmitted Pilot channel element digital waveform quality (rho) exceeds the minimum specified value in ANSI–J_STD–019. “Rho” represents the correlation between actual and perfect CDMA modulation spectrum. A rho value of 1.0000 represents 100% (or perfect correlation).

Pilot Time Offset

The Pilot Time Offset is the difference between the CDMA analyzer measurement interval (based on the BTS system time reference) and the incoming block of transmitted data from the BTS (Pilot only, Pilot Gain = 262, PN Offset = 0).

Code Domain Power (Primary & Redundant BBX)

This test verifies the code domain power levels, which have been set for all ODD numbered Walsh channels, using the OCNS command. This is done by verifying that the ratio of PILOT divided by OCNS is equal to

10.2 $ 2 dB, and, that the noise floor of all EVEN numbered “OFF”

Walsh channels measures channel power).

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 sector/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).

v –27 dB (with respect to total CDMA

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4-5

TX Spectral Purity T ransmit Mask Acceptance Test

Tx Mask Test

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:

 1.7/1.9 GHz:

– at least –45 dB @ + 900 kHz from center frequency – at least –45 dB @ – 900 kHz from center frequency

 800 MHz:

– at least –45 dB @ + 750 kHz from center frequency – at least –45 dB @ – 750 kHz from center frequency – at least –60 dB @ – 1980 kHz from center frequency – at least –60 dB @ – 1980 kHz from center frequency

The BBX then de-keys, and, if selected, the MCC is re-configured to assign the applicable redundant BBX to the current TX antenna path under test. The test is then repeated.

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TX Spectral Purity T ransmit Mask Acceptance Test – continued

Figure 4-1: TX Mask Verification Spectrum Analyzer Display

.5 MHz Span/Div

Ampl 10 dB/Div

– 1980 kHz

– 900 kHz

– 750 kHz

Mean CDMA Bandwidth

Power Reference

+ 900 kHz

+750 kHz

+ 1980 kHz

Center Frequency Reference

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

FW00282

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4-7

TX Waveform Quality (rho) Acceptance Test

Rho 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:

 Waveform quality (rho) should be > 0.912 (–0.4 dB).

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 be repeated.

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TX Pilot Time Offset Acceptance Test

Pilot 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:

 Pilot Time Offset should be within < 3 µs of the target PT

Offset (0 µs).

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.

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4-9

TX Code Domain Power/Noise Floor Acceptance Test

Code Domain Power 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). You 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 measures

10.2 + 2 dB and that the noise floor of all “OFF” Walsh channels < –27 dB (with respect to total CDMA channel power).

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, OCNS is disabled on the specified MCC/CE.

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Nokia Solutions and Networks T6BN1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual