Nokia Solutions and Networks T6BS1 CDMA Base Station User Manual IHET6BS1 Part 2 of 2
Nokia Solutions and Networks CDMA Base Station IHET6BS1 Part 2 of 2
Contents
- 1. IHET6BS1 User Manual Part 1 of 2
- 2. IHET6BS1 User Manual Part 2 of 2
IHET6BS1 User Manual Part 2 of 2
Using CDMA LMF – continued BTS Login from the GUI Environment Follow the procedures in Table 3-7 to log into a BTS when using the GUI environment. Table 3-7: BTS GUI Login Procedure n Step Action Start the CDMA LMF GUI environment by double–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 Click on Login tab (if not displayed). Double click on CDMA (in the Available Base Stations pick list). Click on the desired BTS number. Click on the Network Login tab (if not already in the forefront). Enter correct IP address (normally 128.0.0.2) for a field BTS, if not correctly displayed in the IP Address box. Type in the correct IP Port number (normally 9216) if not correctly displayed in the IP Port box. Change the Multi-channel Preselector from the Multi-channel Preselector pick list (normally MPC) to a device corresponding to your BTS configuration, if required. Use a Tower Top Amplifier is not applicable to the SC4812ET Lite. 10 Click on Login. (A BTS tab with the BTS is displayed.) NOTE S If you attempt to log into a BTS that is already logged on, all devices will be gray. S There may be instances where the BTS initiates a log out due to a system error (i.e., a device failure). S If the MGLI is OOS–ROM (blue), it must be downloaded with RAM code before other devices can be seen. S If the MGLI is OOS–RAM (yellow), it must be enabled before other installed devices can be seen. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-23 Using CDMA LMF – continued BTS Login from the CLI Environment Follow the procedures in Table 3-8 to log into a BTS when using the CLI environment. IMPORTANT If the CLI and GUI environments are to be used at the same time, the GUI must be started first and BTS login must be performed from the GUI. Refer to Table 3-7 to start the GUI environment and log into a BTS. Table 3-8: BTS CLI Login Procedure n Step Action Double–click the WinLMF CLI desktop icon (if the LMF CLI environment is not already running). NOTE If a BTS was logged into under a GUI session before the CLI environment was started, the CLI session will be logged into the same BTS, and step 2 is not required. At the /wlmf prompt, enter the following command: login bts–host= port= 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) A response similar to the following will be displayed: LMF> 13:08:18.882 Command Received and Accepted COMMAND=login bts–33 13:08:18.882 Command In Progress 13:08:21.275 Command Successfully Completed REASON_CODE=”No Reason” Logging Out Logging out of a BTS is accomplished differently for the GUI and CLI operating environments. 3-24 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Using CDMA LMF – continued IMPORTANT The GUI and CLI environments use the same connection to a BTS. If a BTS is logged into in both the GUI and CLI environments 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 the login or logout has occurred. 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. Table 3-9: BTS GUI Logout Procedure n Step Action Click on Select on the BTS tab menu bar. Click the Logout item in the pulldown menu (a Confirm Logout pop-up message will appear). Click on Yes (or press the Enter key) to confirm logout. The Login tab will appear. 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 popup message will appear stating the system could not log out of the BTS. When this occurs, the GUI must be exited and restarted before it can be used for further operations. If a Logout Error popup message appears stating that the system could not log out of the Base Station because the given BTS is not logged in, click OK and proceed to step 5. Select File > Exit in the window menu bar, click Yes in the Confirm Logout popup, and click Yes in the Logout Error popup which appears again. If further work is to be done in the GUI, restart it. NOTE S The Select menu on the BTS tab will only log you out of the displayed BTS. S You can also log out of all BTS sessions and exit CDMA LMF by clicking on the File selection in the menu bar and selecting Exit from the File menu list. A Confirm Logout pop–up message will appear. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-25 Using CDMA LMF – continued Logging Out of a BTS from the CLI Environment Follow the procedure in Table 3-10 to logout of a BTS when using the CLI environment. Table 3-10: BTS CLI Logout Procedure n 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. Logout of a BTS by entering the following command: logout bts– A response similar to the following will be displayed: LMF> 13:24:51.028 Command Received and Accepted COMMAND=logout bts–33 13:24:51.028 Command In Progress 13:24:52.04 Command Successfully Completed REASON_CODE=”No Reason” If desired, close the CLI interface by entering the following command: exit A response similar to the following will be displayed before the window closes: Killing background processes.... Establishing an MMI Communication Session For those procedures which require MMI communication between the CDMA LMF and BTS FRUs, follow the procedures in Table 3-11 to initiate the communication session. Figure 3-11 illustrates common equipment connections for the CDMA LMF computer. For specific connection locations on FRUs, refer to the illustration accompanying the procedures which require the MMI communication session. Table 3-11: Establishing MMI Communication Step Action Connect the CDMA LMF computer to the equipment as detailed in the applicable procedure which requires the MMI communication session. Start the named HyperTerminal connection for MMI sessions by double clicking on its Windows desktop shortcut. . . . continued on next page 3-26 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Using CDMA LMF – continued Table 3-11: Establishing MMI Communication Step Action NOTE If a Windows desktop shortcut was not created for the MMI connection, access the connection from the Windows Start menu by selecting: Programs > Accessories > Hyperterminal > HyperTerminal > Once the connection window opens, establish MMI communication with the BTS FRU by pressing the CDMA LMF computer Enter key until the prompt identified in the applicable procedure is obtained. Figure 3-11: CDMA LMF Computer Common MMI Connections To FRU MMI port 8–PIN NULL MODEM BOARD (TRN9666A) 8–PIN TO 10–PIN RS–232 CABLE (P/N 30–09786R01) CDMA LMF COMPUTER RS–232 CABLE COM1 OR COM2 DB9–TO–DB25 ADAPTER Online Help Task oriented online help is available in CDMA LMF by clicking on Help in the menu bar. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-27 Pinging the Processors Pinging the BTS For proper operation, the integrity of the Ethernet LAN A and B links must be be verified. Figure 3-12 represents a typical BTS Ethernet configuration for the SC4812ET Lite with an expansion frame. The drawing depicts cabling and termination for both the A and B LANs. Ping is a program that sends request packets to the LAN network modules to get a response from the specified “target” module. Follow the steps in Table 3-12 to ping each processor (on both LAN A and LAN B) and verify LAN redundancy is working properly. CAUTION Always wear a conductive, high impedance wrist strap while handling any circuit card/module to prevent damage by Electro–Static Discharge (ESD). Figure 3-12: BTS Ethernet LAN Interconnect Diagram IN TRIAX TERMINATOR OUT 50Ω TRIAX TERMINATOR 50Ω SIGNAL GROUND SIGNAL GROUND SC4812ET Lite (MASTER) SC4812ET Lite (EXPANSION) FRAME GROUND OUT IN TRIAX TERMINATOR 50Ω SIGNAL GROUND TRIAX TERMINATOR 50Ω SIGNAL GROUND SIGNAL GROUND SC4812ETL0013–4 3-28 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Pinging the Processors – continued IMPORTANT The Ethernet LAN A and B cables and/or terminations must be installed on each frame/enclosure external LAN connector before performing this test. All other processor board LAN connections are made through the backplanes. Table 3-12: Pinging the Processors Step Action If this is a first–time communication with a newly–installed frame or a GLI2 which has been replaced, perform the procedure in Table 6-3 and then return to step 2. Be sure uncabled LAN A and B IN and OUT connectors in the power entry compartment (rear of frame – Figure 3-9 and Figure 3-12) are terminated with 50 Ω loads. If it has not already been done, interface the LMF computer to the BTS (refer to Table 3-6 and Figure 3-10.) If it has not already been done, start a GUI LMF session and log into the BTS ( refer to Table 3-7). In the power entry compartment, remove the 50Ω termination on the frame LAN B IN connector. The CDMA LMF session should remain active. Replace the 50Ω terminator on the BTS frame LAN B IN connector. From the Windows desktop, click the Start button and select Run. In the Open box, type ping and the GLI2 IP address (for example, ping 128.0.0.2). NOTE 128.0.0.2 is the default IP address for the GLI2 in field BTS units. Click on OK. If the targeted module responds, a DOS window will appear with a display similar to the following: Reply from 128.0.0.2: bytes=32 time=3ms TTL=255 S If the device responds, proceed to step 18. If there is no response the following is displayed: Request timed out S If the GLI2 fails to respond, it should be reset and re–pinged. If it still fails to respond, typical problems would be: failure of the CDMA LMF to login, shorted BNC to inter-frame cabling, open cables, crossed A and B link cables, or the GLI2 itself. 10 Logout of the BTS as described in Table 3-9, exit from the CDMA LMF program, and restart the Windows operating system on the CDMA LMF computer. 11 Restart the CDMA LMF GUI program as described in LMF Help function, and log into the BTS as described in Table 3-7. 12 Perform steps 6 through 9 again. S If the device responds, proceed to step 18. If there is still no response,proceed to step 13. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-29 Pinging the Processors – continued Table 3-12: Pinging the Processors Step Action 13 If ping was unsuccessful after restarting the CDMA LMF computer, press the MGLI front panel reset pushbutton and perform steps 6 through 9 again. 14 NOTE Refer to Table 6-1 if ping was unsuccessful after resetting the MGLI. 15 After the BTS has been successfully pinged, be sure the 50Ω termination was replaced on the BTS frame LAN B IN connector in the power entry compartment (Figure 3-12). Disconnect the LMF cable from the LAN shelf LAN A connector, and connect it to LAN B (right–hand connector) using a BNC–female–to–BNC–female adapter (refer to Figure 3-10). 16 In the power entry compartment, remove the 50Ω termination on the BTS frame LAN A IN connector. 17 Repeat steps 5 through 8 using LAN B. 18 After the BTS has been successfully pinged on the secondary LAN, replace the 50Ω termination on the frame LAN A IN connector in the power entry compartment. 19 Disconnect the LMF cable from the LAN shelf LAN B and connect it to LAN A using a BNC-female-to-BNC-female adapter. 20 Remove and replace the 50Ω termination on the LAN B IN connector to force the MGLI to switch to primary LAN A. 21 Repeat steps 5 through 8 to ensure proper primary LAN operation. 3-30 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY 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 CDMA LMF is NOT routine maintenance or 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 can not communicate with the BTS to perform the download. An example would be a BTS loaded with Release 9.2 software where a GLI loaded with Release 2.8.1 ROM code must be installed to replace a malfunctioning MGLI. Before ROM code can be downloaded from the CDMA 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. ROM code can be downloaded to a device that is in any state. After the download is started, the device being downloaded will change to OOS–ROM (blue). The device will remain OOS–ROM (blue) when the download is completed. The same Revision–level RAM code must then be downloaded to the device. For example, if Release 2.9.2.1.1 ROM code is downloaded, Release 2.9.2.1.1 RAM code must be downloaded. Procedures to load ROM code are located in Appendix G. 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 will be 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 that matches the “NextLoad” parameter of the CDF file). 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 loaded will change to OOS-ROM (blue). When the download is completed successfully, the device will change to OOS-RAM (yellow). When code is downloaded to an MGLI or GLI, the CDMA LMF automatically also downloads data and then enables the MGLI. When enabled, the MGLI will change to INS (green). For non–GLI devices, data must be downloaded after RAM code is downloaded. To download data, the device state must be OOS–RAM (yellow). 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-31 Download the BTS – continued RAM code downloading requires a few minutes. After the download starts, the non–GLI device being loaded changes to OOS–ROM (blue). If the download is completed successfully, the non–GLI device changes to OOS–RAM (yellow). The devices to be loaded with RAM code and data are: S Master Group Line Interface (MGLI2) S Redundant GLI (GLI2) S Clock Syncronization Module (CSM) (Only if new revision code must be loaded) S Multi Channel CDMA (MCC24 or MCC8E) card S Broadband Transceiver (BBX2) S RFDS Test Subscriber Interface Card (TSIC), if equipped IMPORTANT The MGLI must be successfully downloaded with RAM code and data, and in INS (green) status before downloading any other device. The RAM code download process for an MGLI automatically downloads data and then enables the MGLI. Verify GLI ROM Code Loads Devices should not be loaded with RAM code which is for a different system release than the ROM code with which they are loaded. Before downloading RAM code and data to the processor cards, follow the procedure in Table 3-13 to verify the GLI devices are loaded with the correct ROM code for the system release used by the BSS. Table 3-13: Verify GLI ROM Code Loads Step Action If it has not already been done, start a GUI LMF session and log into the BTS ( refer to Table 3-7). Select all GLI devices by clicking on them, and select Device > Status from the menu bar. In the status report window which opens, note the number in the ROM Ver column for each GLI2. S The system release number will be the first two decimal divisions of the number; for example, the number 2.15.0.0.3 would be for System Release 2.15, and 2.9.2.2.34 would be for System Release 2.9. If the ROM code loaded in the GLIs is not for the correct system release, log out of the BTS, disconnect the CDMA LMF computer, reconnect the span lines as described in Table 5-7, and have the CBSC download the correct ROM code version to the BTS devices. When the GLIs have the correct ROM load for the system release being used, be sure the span lines are disabled as outlined in Table 3-4 and proceed to downloading RAM code and data. 3-32 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Download the BTS – continued Download RAM Code and Data to MGLI and GLI Follow the steps outlined in Table 3-14 to download the RAM code and data to the MGLI and other installed GLI devices. Prerequisites S Prior to performing these procedures, ensure a code file exists for each of the devices to be loaded. S The CDMA LMF computer is connected to the BTS (refer to Table 3-6), and is logged in using the GUI environment (refer to Table 3-7). Table 3-14: Download and Enable MGLI and GLI Devices Step Action From the Util pull down menu, select Tools, then Update NextLoad. Select the correct code version for the system release being used and click Save. Download code to the MGLI by clicking on the device. From the Device pull down menu, select Download Code. A status report is displayed confirming change in the device(s) status. Click OK to close the status window. (The MGLI will automatically be downloaded with data and enabled.) Once the MGLI is enabled, load and enable additional installed GLIs by clicking on the devices and repeating step 4. Click OK to close the status window for the additional GLI devices. Download RAM Code and Data to Non–GLI Devices Downloads to non–GLI devices can be performed individually for each device or all installed devices can be downloaded with one action. RAM code and data are downloaded to non–GLI devices in separate steps. IMPORTANT CSM devices are RAM code–loaded at the factory. RAM code is downloaded to CSMs only if a newer software version needs to be loaded. NOTE When downloading to multiple devices, the download may fail for some of the devices (a time–out occurs). These devices can be loaded individually after completing the multiple download. Follow the steps in Table 3-15 to download RAM code and data to non–GLI devices. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-33 Download the BTS – continued Table 3-15: Download RAM Code and Data to Non–GLI Devices Step Action Select the target CSM, MCC, and BBX device(s). From the Device pull down menu, select Download Code. A status report is displayed that shows the results of the download for each selected device. Click OK to close the status report window when downloading is completed. NOTE After a BBX, CSM, or MCC device is successfully loaded with RAM code and has changed to the OOS–RAM state (yellow), the status LED should be rapidly flashing GREEN. To download data, select the target CSM and MCC device(s). From the Device pull down menu, select Download Data. A status report is displayed that shows the results of the download for each selected device. Click OK to close the status report window when downloading is completed. Select CSM Clock Source A CSM can have three different clock sources. The Select CSM 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 source 2 & 3) LFR (only for source 2 & 3) 10 MHz (only for source 2 & 3) NONE (only for source 2 & 3) Prerequisites MGLI=INS_ACT (green), CSM= OOS_RAM (yellow) or INS_ACT (green) Table 3-16: Select CSM Clock Source Step Action Select the applicable CSM(s). Click on the Device menu. Click on the Clock Source menu item. Click on the Select menu item. A clock source selection window is displayed. 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. . . . continued on next page 3-34 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Download the BTS – continued Table 3-16: Select CSM Clock Source Step Action Click on the OK button. A status report window is displayed showing the results of the selection action. 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 GPS receiver interfaced to CSM 1 is used as the primary timing reference and synchronizes the entire cellular system. CSM 2 provides clock syncronization back–up, but does not have a GPS receiver. The BTS may be equipped with a LORAN–C Low Frequency Receiver (LFR), a High Stability Oscillator (HSO), or external 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 For RF–GPS, verify the CSM configured with the GPS receiver “daughter board” is installed in the frame’s CSM 1 slot before continuing. Follow the steps outlined in Table 3-17 to enable the CSMs installed in the SCCP shelves. Table 3-17: Enable CSMs Step Action NOTE If equipped with two CSMs, enable CSM–2 first. Click on the target CSM. From the Device pull down, select Enable. A status report is displayed confirming change in the device(s) status. Click OK to close the status report window. NOTE S CSM 1 houses the GPS receiver. The enable sequence can take up to one hour (see below). S FAIL may be shown in the status report 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. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-35 Download the BTS – continued Table 3-17: Enable CSMs Step Action * IMPORTANT The GPS satellite system satellites are not in a geosynchronous orbit and are maintained and operated by the United States Department of Defense (DOD). The DOD 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 a GPS receiver has not been updated for a number of weeks, it may take up to an 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). NOTE S If equipped with two CSMs, CSM–1 should be bright green (INS–ACT) and CSM–2 should be dark green(INS–STB) S If more than an hour has passed, refer to CSM Verification, see Figure 3-13 and Table 3-20 to determine the cause. After the CSMs have been successfully enabled, be sure the PWR/ALM LEDs are steady green (alternating green/red indicates the card is in an alarm state). 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 steps outlined in Table 3-18 to enable the MCCs installed in the SCCP shelves. IMPORTANT The MGLI and CSM must be downloaded and enabled, prior to downloading and enabling the MCC. Table 3-18: Enable MCCs Step Action Click on the target MCC(s) or from the Select pull down menu choose All MCCs. From the Device menu, select Enable A status report is displayed confirming change in the device(s) status. Click OK to close the status report window. 3-36 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY CSM System Time – GPS & LFR/HSO Verification Clock Synchronization Manager (CSM) System Time The primary function of the Clock Synchronization Manager (CSM) cards is to maintain CDMA system time. The CSM card in SCCP shelf slot CSM–1 is the primary timing source while the card in slot CSM–2 provides redundancy. The second generation CSM card (CSM2) 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. A CSM2 card can have a local GPS receiver daughter card to support an RF–GPS signal. Each CSM2 card features a temperature–stablized, crystal oscillator that provides 19.6608 MHz clock, even second pulse, and 3 MHz reference signals to the synchronization source selected from the following (refer to Table 3-20 for source selection/verification procedures): S GPS: local/RF–GPS or remote/R–GPS S LORAN–C Low Frequency Receiver (LFR) or High Stability Oscillator (HSO) S External reference oscillator sources CDMA Clock Distribution Cards (CCDs) buffer and distribute even–second reference and 19.6608 MHz clock signals from the CSM cards. CCD 1 is married to the card in slot CSM–1, and CCD 2 is married to the card in slot CSM–2. The BTS switches between the primary and redundant units (card slots CSM–1 and CSM–2, respectively) upon failure or command. A failure in CSM–1 or CCD 1 will cause the system to switch to the CSM–2–CCD 2 redundant card pair. 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 in CSM–1. During normal operation, the card in CSM–1 selects GPS as the primary timing source (Table 3-20). The source selection can also be overridden via the CDMA LMF or by the system software. In addition to providing GPS synchronization to the LFR or HSO back–up sources, synchronization between the primary and redundant CSM–CCD pairs increases reliability. Low Frequency Receiver/ High Stability Oscillator The CSM performs 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–C RF signals. Timing pulses are derived from this signal, which is 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-37 CSM System Time – GPS & LFR/HSO Verification – continued synchronized to Universal Time Coordinates (UTC) and GPS time. The LFR can maintain system time indefinately 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 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 (Table 3-20). HSO, HSO2, and HSOX use the same source code in source selection (Table 3-20). NOTE Allow the base site and test equipment to warm up for 60 minutes after any interruption in oscillator power. CSM card 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. 3-38 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY CSM System Time – GPS & LFR/HSO Verification – continued CSM Frequency Verification The objective of this procedure is the initial verification of the Clock Synchronization Module (CSM) cards before performing the RF path verification tests. Test Equipment Setup (GPS & LFR/HSO Verification) Follow the steps outlined in Table 3-19 to set up test equipment. Table 3-19: Test Equipment Setup (GPS & LFR/HSO Verification) Step 1a Action For local GPS (RF–GPS): Verify a CSM card with a GPS receiver is installed in the primary CSM slot, CSM–1, and that CSM–1 is INS. NOTE This is verified by checking the card ejectors for kit number SGLN1145 on the card in slot 1. 1b For Remote GPS (RGPS): Verify a CSM2 card is installed in primary slot CSM–1 and that CSM–1 is INS. NOTE This is verified by checking the card ejectors for kit number SGLN4132CC or subsequent. Remove CSM–2 (if installed) and connect a serial cable from the LMF COM 1 port (via null modem card) to the MMI port on CSM–1 (see Figure 3-13). Reinstall CSM–2. Start an MMI communication session with CSM–1 by using the Windows desktop shortcut icon (see Table 3-11) . When the terminal screen appears press the Enter key until the CSM> prompt appears. CAUTION In the power entry compartment, connect the GPS antenna to the RF GPS connector ONLY. Damage to the GPS antenna and/or receiver can result if the GPS antenna is inadvertently connected to any other RF connector. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-39 CSM System Time – GPS & LFR/HSO Verification – continued Figure 3-13: CSM MMI Terminal Connection REFERENCE OSCILLATOR CSM card shown removed from frame MMI SERIAL PORT EVEN SECOND TICK TEST POINT REFERENCE GPS RECEIVER ANTENNA INPUT ANTENNA COAX CABLE GPS RECEIVER 19.6 MHZ TEST POINT REFERENCE (NOTE 1) NULL MODEM BOARD (TRN9666A) 9–PIN TO 9–PIN RS–232 CABLE FW00372 LMF NOTEBOOK DB9–TO–DB25 ADAPTER RS–232 SERIAL MODEM CABLE COM1 NOTES: 1. One LED on each CSM: Green = IN–SERVICE ACTIVE Fast Flashing Green = OOS–RAM Red = Fault Condition Flashing Green & Red = Fault GPS Initialization/Verification Prerequisites Ensure the following prerequisites have been met before proceeding: S The primary CSM and HSO (if equipped) has been warmed up for at least 15 minutes. S The CDMA LMF computer is connected to the MMI port of the primary CSM as shown in Figure 3-13. S A HyperTerminal session has been started (Table 3-11), and the CSM> prompt is present in the HyperTerminal window (Table 3-19). Follow the steps outlined in Table 3-20 to initialize and verify proper GPS receiver functioning. 3-40 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY CSM System Time – GPS & LFR/HSO Verification – continued Table 3-20: GPS Initialization/Verification Step Action 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 – The system will display a response similiar to the following: 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 Enter the following command at the CSM> prompt to display the current status of the Loran and GPS receivers: sources – When equipped with LFR, the system will generate a response similar to the following: N Source Name Type TO Good Status Last Phase Target Phase Valid ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 0 LocalGPS Primary 4 YES Good Yes 1 LFR CHA Secondary 4 YES Good –2013177 –2013177 Yes 2 Not Used Current reference source number: 0 – When equipped with HSO, the system will generate a response similar to the following: Num Source Name Type TO Good Status Last Phase Target Phase Valid –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Local GPS Primary 4 Yes Good Yes HSO Backup No N/A timed–out* Timed–out* No *NOTE “Timed–out” should only be displayed while the HSO is warming up. “Not–Present” or “Faulty” should not be displayed. If the HSO does not appear as one of the sources, then configure the HSO as a back–up source by entering the following command at the CSM> prompt: ss 1 12 After a maximum of 15 minutes, the Rubidium oscillator should reach operational temperature and the LED on the HSO should now have changed from red to green. After the HSO front panel LED has changed to green, enter sources at the CSM> prompt. Verify that the HSO is now a valid source by confirming that the bold text below matches the response of the “sources” command. The HSO should be valid within one (1) minute, assuming the DPLL is locked and the HSO rubidium oscillator is fully warmed. Num Source Name Type TO Good Status Last Phase Target Phase Valid –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Local GPS Primary 4 Yes Good Yes HSO Backup Yes N/A xxxxxxxxxx xxxxxxxxxx Yes . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-41 CSM System Time – GPS & LFR/HSO Verification – continued Table 3-20: GPS Initialization/Verification Step Action 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 display bts csmgen command and correct as required using the edit csm csmgen refsrc command. * IMPORTANT If any of the above 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 card warpage 3-42 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. . . . continued on next page 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY CSM System Time – GPS & LFR/HSO Verification – continued Table 3-20: GPS Initialization/Verification Step Action 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 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 (GPS) 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 24:06:08 GPS Receiver Control Task State: tracking satellites. Time since last valid fix: 0 seconds. Recent Change Data: Antenna cable delay 0 ns. Initial position: lat 117650000 msec, lon –350258000 msec, height 0 cm (GPS) Initial position accuracy (0): estimated. GPS Receiver Status: Position hold: lat 118245548 msec, lon –350249750 msec, height 20270 cm Current position: lat 118245548 msec, lon –350249750 msec, height 20270 cm 8 satellites tracked, receiving 8 satellites, Current Dilution of Precision (PDOP or HDOP): Date & Time: 1998:01:13:21:36:11 GPS Receiver Status Byte: 0x08 Chan:0, SVID: 16, Mode: 8, RSSI: 148, Status: Chan:1, SVID: 29, Mode: 8, RSSI: 132, Status: Chan:2, SVID: 18, Mode: 8, RSSI: 121, Status: Chan:3, SVID: 14, Mode: 8, RSSI: 110, Status: Chan:4, SVID: 25, Mode: 8, RSSI: 83, Status: Chan:5, SVID: 3, Mode: 8, RSSI: 49, Status: Chan:6, SVID: 19, Mode: 8, RSSI: 115, Status: Chan:7, SVID: 22, Mode: 8, RSSI: 122, Status: 8 satellites visible. 0. 0xa8 0xa8 0xa8 0xa8 0xa8 0xa8 0xa8 0xa8 GPS Receiver Identification: COPYRIGHT 1991–1996 MOTOROLA INC. SFTW P/N # 98–P36830P SOFTWARE VER # 8 SOFTWARE REV # 8 SOFTWARE DATE 6 AUG 1996 MODEL # B3121P1115 HDWR P/N # _ SERIAL # SSG0217769 MANUFACTUR DATE 6B07 OPTIONS LIST IB The receiver has 8 channels and is equipped with TRAIM. 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). . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-43 CSM System Time – GPS & LFR/HSO Verification – continued Table 3-20: GPS Initialization/Verification Step Action If steps 1 through 6 pass, the GPS is good. * IMPORTANT If any of the above mentioned areas fail, verify that: – If Initial position accuracy is “estimated” (typical), at least 4 satellites must be tracked and 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,” position data currently in the CDF file is assumed to be 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. 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 9) 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. Observe the following typical response if the CSM is warmed up. c:17486 c:17486 c:17470 c:17486 c:17470 c:17470 off: off: off: off: off: off: –11, –11, –11, –11, –11, –11, 3, 3, 1, 3, 1, 1, TK TK TK TK TK TK SRC:0 SRC:0 SRC:0 SRC:0 SRC:0 SRC:0 S0: S0: S0: S0: S0: S0: S1:–2013175,–2013175 S1:–2013175,–2013175 S1:–2013175,–2013175 S1:–2013175,–2013175 S1:–2013175,–2013175 S1:–2013175,–2013175 10 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. 11 Enter the following commands at the CSM> prompt to exit the debug mode display. debug dpllp 3-44 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY CSM System Time – GPS & LFR/HSO Verification – continued LORAN–C Initialization/Verification Table 3-21: LORAN–C Initialization/Verification Step Action At the CSM> prompt, enter lstatus to verify that the LFR is in tracking mode. A typical response is: CSM> lstatus LFR Station St ti St Status: Clock coherence: 512 5930M 51/60 dB 0 S/N 5930X 52/64 dn –1 S/N 5990 47/55 dB –6 S/N 7980M 62/66 dB 10 S/N 7980W 65/69 dB 14 S/N 7980X 48/54 dB –4 S/N 7980Y 46/58 dB –8 S/N 7980Z 60/67 dB 8 S/N 8290M 50/65 dB 0 S/N 8290W 73/79 dB 20 S/N 8290W 58/61 dB 6 S/N 8970M 89/95 dB 29 S/N 8970W 62/66 dB 10 S/N 8970X 73/79 dB 22 S/N 8970Y 73/79 dB 19 S/N 8970Z 62/65 dB 10 S/N 9610M 62/65 dB 10 S/N 9610V 58/61 dB 8 S/N 9610W 47/49 dB –4 S/N 9610X 46/57 dB –5 S/N 9610Y 48/54 dB –5 S/N 9610Z 65/69 dB 12 S/N 9940M 50/53 dB –1 S/N 9940W 49/56 dB –4 4 S/N 9940Y 46/50 dB–10 S/N 9960M 73/79 dB 22 S/N 9960W 51/60 dB 0 S/N 9960X 51/63 dB –1 S/N 9960Y 59/67 dB 8 S/N 9960Z 89/96 dB 29 S/N Note > This must be greater than 100 before LFR becomes a valid source. Flag: Flag: Flag: Fl Flag: Flag: . PLL Station . Flag: Flag:E Flag: Flag Flag: Flag: Flag: Flag: Flag: Flag: Flag: Flag: Fl Flag: Flag: Flag:E Flag:E Flag:E Flag Flag: Flag:S Flag:E Flag:E Flag: Flag: Flag: Flag: Fl Flag: > This shows the LFR is locked to the selected PLL station. 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> This search list and PLL data must match the configuration for the geographical location of the cell site. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-45 CSM System Time – GPS & LFR/HSO Verification – continued Table 3-21: LORAN–C Initialization/Verification Step Action Note 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. – Verify the S/N ratio of the phase locked station is greater than 8. At the CSM> prompt, enter sources to display the current status of the the LORAN receiver. – Observe the following typical response. Num Source Name Type TO Good Status Last Phase Target Phase Valid –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Local GPS Primary 4 Yes Good –3 Yes LFR ch A Secondary 4 Yes Good –2013177 –2013177 Yes Not used Current reference source number: 1 *NOTE “Timed–out” should only be displayed while the LFR is warming up. “Not–Present” or “Faulty” should not be displayed. If the LFR does not appear as one of the sources, then configure the LFR as a back–up source by entering the following command at the CSM> prompt: ss 1 2 LORAN LFR information (highlighted above in boldface type) is usually the #1 reference source (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 responses on the LFR row to validate correct LFR operation. 3-46 Close the hyperterminal window. 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Test Equipment Setup Connecting Test Equipment to the BTS All test equipment is controlled by the LMF through 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 as follows: S Power meter address should be 13 S Communications test set should be 18 The following test equipment is required to perform optimization, calibration and ATP tests: S CDMA LMF S Communications test set model supported by the CDMA LMF S Power meter model supported by the CDMA LMF (required when using the HP 8921A/600 and Advantest R3465 test sets) S Non–radiating transmit line termination load S Directional coupler and in–line attenuator S RF cables and adapters Refer to Table 3-22 for an overview of connections for test equipment currently supported by the CDMA LMF. In addition, see the following figures: S Figure 3-15 and Figure 3-16 show the test set connections for TX calibration S Figure 3-17 and Figure 3-18 show the test set connections for optimization/ATP tests Supported Test Equipment Optimization and ATP testing may be performed using the following test equipment: CyberTest Advantest R3465 and HP–437B or Gigatronics Power Meter Hewlett–Packard HP 8935 Hewlett–Packard HP 8921 (W/CDMA and PCS Interface (1.9 GHz)) and HP–437B or Gigatronics Power Meter S Spectrum Analyzer (HP8594E) – optional S Rubidium Standard Timebase – optional CAUTION To prevent damage to the test equipment, all transmit (TX) test connections must be through a 30 dB directional coupler plus a 20 dB in-line attenuator for both the 800 MHz and 1.9 GHz BTSs. 08/01/2001 PRELIMINARY 3-47 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Test Equipment Preparation For specific steps to prepare each type of test set and power meter to perform calibration and ATP, see Appendix F. Test Equipment Connection 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 SIGNAL EVEN SECOND SYNCHRONIZATION 19.6608 MHZ CLOCK CONTROL IEEE 488 BUS 3-48 Cyber– Test Advantest EVEN EVEN SEC SEC REF SYNC IN TIME BASE IN CDMA TIME BASE IN ADDITIONAL TEST EQUIPMENT HP 8935 HP 8921A HP 8921 W/PCS EVEN SECOND SYNC IN EVEN SECOND SYNC IN EVEN SECOND SYNC IN EXT REF IN Power Meter GPIB Interface LMF Directional Coupler & Pad* SYNC MONITOR CDMA CDMA TIME BASE TIME BASE IN IN IEEE 488 GPIB HP–IB HP–IB HP–IB TX TEST CABLES RF IN/OUT INPUT 50–OHM RF IN/OUT RF IN/OUT RF IN/OUT RX TEST CABLES RF IN/ OUT RF OUT 50–OHM DUPLEX DUPLEX OUT RF OUT ONLY BTS FREQ MONITOR HP–IB GPIB SERIAL PORT 20 DB PAD BTS PORT TX1–6 RX1–12 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 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.) 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. Automatic Cable Calibration Set–up Figure 3-14 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. Table 3-26 provides a procedure for calibrating cables. 08/01/2001 PRELIMINARY 3-49 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Figure 3-14: Cable Calibration Test Setup SUPPORTED TEST SETS CALIBRATION SET UP Motorola CyberTest A. SHORT CABLE CAL ÏÏÏ ÏÏÏÌ ANT IN SHORT CABLE TEST SET RF GEN OUT Note: The Directional Coupler is not used with the Cybertest Test Set. The TX cable is connected directly to the Cybertest Test Set. B. RX TEST SETUP 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. N–N FEMALE ADAPTER RX CABLE Hewlett–Packard Model HP 8935 ÁÁ ÁÁ ÁÁ ÁÁ ANT IN SHORT CABLE TEST SET DUPLEX OUT Advantest Model R3465 RF OUT 50–OHM C. TX TEST SETUP 50 Ω ΤERM. INPUT 50–OHM DIRECTIONAL COUPLER (30 DB) 20 DB IN–LINE ATTENUATOR FOR 1.9 GHZ 100–WATT (MIN) NON–RADIATING RF LOAD Hewlett–Packard Model HP 8921A SHORT CABLE TX CABLE N–N FEMALE ADAPTER TEST SET TX CABLE Note: For 800 MHZ only. The HP8921A cannot be used to calibrate cables for PCS frequencies. FW00089 3-50 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Manual Cable Calibration If manual cable calibration is required, refer to the procedures in Appendix F. Set–up for TX Calibration Figure 3-15 and Figure 3-16 show the test set connections for TX calibration. Figure 3-15: TX Calibration Test Setup (CyberTest and HP 8935) TEST SETS TRANSMIT (TX) SET UP Motorola CyberTest POWER SENSOR ÏÏÏ ÏÏÏÌ Ì FRONT PANEL POWER METER (OPTIONAL)* 100–WATT (MIN) NON–RADIATING RF LOAD OUT DIRECTIONAL COUPLER (30 DB) 50 Ω ΤERM. RF IN/OUT COMMUNICATIONS TEST SET TEST SET INPUT/ OUTPUT PORTS CONTROL 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. TX TEST CABLE IN TX TEST 2O DB CABLE IN–LINE ATTENUATOR * A POWER METER CAN BE USED IN PLACE OF THE COMMUNICATIONS TEST SET FOR TX CALIBRATION/AUDIT Hewlett–Packard Model HP 8935 HP–IB TO GPIB BOX GPIB CABLE ÁÁ Á ÁÁ Á ** BLACK PORTION OF THE DIAGRAM REPRESENTS THE RAISED PART OF THE SWITCH DIP SWITCH SETTINGS** TX ANTENNA PORT OR TX RFDS DIRECTIONAL COUPLERS S MODE DATA FORMAT BAUD RATE RF IN/OUT ON BTS GPIB ADRS RS232–GPIB INTERFACE BOX LAN LAN G MODE RS232 NULL MODEM CABLE 10BASET/ 10BASE2 CONVERTER CDMA LMF UNIVERSAL TWISTED PAIR (UTP) CABLE (RJ45 CONNECTORS) INTERNAL PCMCIA ETHERNET CARD FW00094 08/01/2001 PRELIMINARY 3-51 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Figure 3-16: TX Calibration Test Setup HP 8921A and Advantest TEST SETS TRANSMIT (TX) SET UP NOTE: THE HP8921A AND ADVANTEST CANNOT BE USED FOR TX CALIBRATION. A POWER METER MUST BE USED. 100–WATT (MIN) NON–RADIATING RF LOAD POWER SENSOR POWER METER DIRECTIONAL COUPLER (30 DB) 50 Ω ΤERM. TX TEST CABLE 2O DB IN–LINE ATTENUATOR TX TEST CABLE GPIB CABLE TX ANTENNA GROUP OR TX RFDS DIRECTIONAL COUPLERS * BLACK PORTION OF THE DIAGRAM REPRESENTS THE RAISED PART OF THE SWITCH DIP SWITCH S MODE SETTINGS* DATA FORMAT BAUD RATE BTS ON GPIB ADRS G MODE RS232–GPIB INTERFACE BOX LAN LAN RS232 NULL MODEM CABLE 10BASET/ 10BASE2 CONVERTER CDMA LMF UNIVERSAL TWISTED PAIR (UTP) CABLE (RJ45 CONNECTORS) INTERNAL PCMCIA ETHERNET CARD FW00095 3-52 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Setup for Optimization/ATP Figure 3-17 and Figure 3-18 show the test set connections for optimization/ATP tests. Figure 3-17: 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 NOTE: IF BTS RX/TX SIGNALS ARE DUPLEXED, BOTH THE TX AND RX TEST CABLES CONNECT TO THE DUPLEXED ANTENNA GROUP AND USE THE 30 DB DIRECTIONAL COUPLER AND 20 DB IN–LINE ATTENUATOR. CDMA TIMEBASE TEST SET IN INPUT/ OUTPUT PORTS 100–WATT (MIN) NON–RADIATING RF LOAD RX TEST CABLE IEEE 488 GPIB BUS RF OUT NOTE: The Directional Coupler is not used with the Cybertest Test Set. The TX cable is connected directly to the Cybertest Test set. 50 Ω ΤERM. 2O DB IN–LINE ATTENUATOR DIRECTIONAL COUPLER (30 DB) Hewlett–Packard Model HP 8935 FREQ MONITOR 19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD GPIB CABLE TX TEST CABLE HP–IB TO GPIB BOX ÁÁ Á ÁÁ Á RX ANTENNA PORT OR RFDS RX ANTENNA DIRECTIONAL COUPLER TX ANTENNA PORT OR RFDS RX ANTENNA DIRECTIONAL COUPLER * BLACK PORTION OF THE DIAGRAM REPRESENTS THE RAISED PART OF THE SWITCH DIPSWITCH SETTINGS* BTS S MODE DATA FORMAT BAUD RATE RF IN/OUT FREQ MONITOR Advantest Model R3465 SYNC MONITOR EVEN SEC TICK PULSE REFERENCE FROM CSM BOARD EVEN SECOND/SYNC IN (BNC “T” WITH 50 OHM TERMINATOR) IN RF IN/OUT DUPLEX OUT COMMUNICATIONS TEST SET OUT ÏÏÏÏ ÏÏÏÏ ÏÏÏÏÌ SYNC MONITOR EVEN SEC TICK PULSE REFERENCE FROM CSM BOARD ON SYNC MONITOR FREQ MONITOR 19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD GPIB ADRS CSM BNC “T” LAN RF OUT G MODE RS232–GPIB INTERFACE BOX RS232 NULL MODEM CABLE LAN 10BASET/ 10BASE2 CONVERTER CDMA LMF GPIB CONNECTS TO BACK OF UNIT INPUT 50–OHM TO EXT TRIGGER CONNECTOR ON REAR OF TEST SET (FOR DETAILS, SEE FIGURE F-3) 08/01/2001 UNIVERSAL TWISTED PAIR (UTP) CABLE (RJ45 CONNECTORS) INTERNAL PCMCIA ETHERNET CARD FW00096 PRELIMINARY 3-53 1X SCt4812ET Lite BTS Optimization/ATP Test Equipment Set–up – continued Figure 3-18: 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 NOTE: IF BTS RX/TX SIGNALS ARE DUPLEXED, BOTH THE TX AND RX TEST CABLES CONNECT TO THE DUPLEXED ANTENNA GROUP AND USE THE 30 DB DIRECTIONAL COUPLER AND 20 DB IN–LINE ATTENUATOR. OUT CDMA TIMEBASE TEST SET IN INPUT/ OUTPUT PORTS 100–WATT (MIN) NON–RADIATING RF LOAD RX TEST CABLE COMMUNICATIONS TEST SET GPIB CONNECTS TO BACK OF UNITS EVEN SECOND/SYNC IN (BNC “T” WITH 50 OHM TERMINATOR) IN IEEE 488 GPIB BUS HP PCS INTERFACE* 50 Ω ΤERM. RF IN/OUT * FOR 1700 AND 1900 MHZ ONLY DIRECTIONAL COUPLER (30 DB) RF OUT ONLY 2O DB IN–LINE ATTENUATOR Hewlett–Packard Model HP 8921A (for 800 MHz) SYNC MONITOR EVEN SEC TICK PULSE REFERENCE FROM CSM BOARD FREQ MONITOR 19.6608 MHZ CLOCK REFERENCE FROM CSM BOARD GPIB CONNECTS TO BACK OF UNIT RX ANTENNA PORT OR RFDS RX ANTENNA DIRECTIONAL COUPLER TX ANTENNA PORT OR RFDS RX ANTENNA DIRECTIONAL COUPLER S MODE DATA FORMAT BAUD RATE ON FREQ MONITOR RF OUT ONLY SYNC MONITOR LAN * BLACK PORTION OF THE DIAGRAM REPRESENTS THE RAISED PART OF THE SWITCH DIPSWITCH SETTINGS* BTS RF IN/OUT GPIB CABLE TX TEST CABLE GPIB ADRS G MODE RS232–GPIB INTERFACE BOX CSM LAN RS232 NULL MODEM CABLE 10BASET/ 10BASE2 CONVERTER CDMA LMF UNIVERSAL TWISTED PAIR (UTP) CABLE (RJ45 CONNECTORS) INTERNAL PCMCIA ETHERNET CARD REF FW00097 3-54 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration Background Proper test equipment set–up ensures that all measurements are correct and the test equipment and associated test cables do not introduce measurement errors. NOTE If the test equipment set (see Chapter 1, Terms and Abbreviations) being used to interface with the BTS has been calibrated and maintained as a set, this procedure does not need to be performed. This procedure must be performed before 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. CAUTION If any piece of test equipment, test cable, or RF adapter, that makes up the calibrated test equipment set has been replaced, the set must be re-calibrated. Failure to do so can introduce measurement errors, resulting in incorrect measurements and degradation to system performance. Motorola recommends repeating cable calibration before testing at each BTS site. IMPORTANT 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. Purpose These procedures access the CDMA 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 equipment set. After calibration, the gain/loss offset values are stored in a test measurement offset file on the CDMA LMF. 08/01/2001 PRELIMINARY 3-55 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued Manual cable calibration procedures using the HP8921A and Advantest R3465 communications test sets are provided in Appendix F, if needed. Manual power meter calibration procedures are also included in Appendix F. Selecting Test Equipment Prerequisites 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 CDMA 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. Ensure the following has been completed before selecting test equipment: S Test equipment is correctly connected and turned on. S Test equipment GPIB addresses have been verified as correct. S CDMA LMF computer serial port and test equipment are connected to the GPIB box. Selecting Test Equipment Use Options > LMF Options in the menu bar to select test equipment automatically (using the autodetect feature) or manually. Manually Selecting Test Equipment in a Serial Connection Tab Test equipment can be manually specified before, or after, the test equipment is connected. CDMA LMF does not check to see if the test equipment is actually detected for manual specification. Table 3-23: Selecting Test Equipment Manually in a Serial Connection Tab Step Action In the menu bar, click Options and select LMF Options... from the pulldown. The LMF Options window appears. Click on the Serial Connection tab (if not in the forefront). Select the correct serial port in the COMM Port pick list (normally COM1). Click on the Manual Specification button (if not enabled). Click on the check box corresponding to the test item(s) to be used. Type the GPIB address in the corresponding GPIB address box. Addresses are: 13=Power Meter 18=CDMA Analyzer . . . continued on next page 3-56 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued Table 3-23: Selecting Test Equipment Manually in a Serial Connection Tab Step Action Click on Apply. (The button will darken until the selection has been recorded.) NOTE With manual selection, CDMA LMF does not detect the test equipment to see if it is connected and communicating with CDMA LMF. Click on Dismiss to close the test equipment window. Automatically Selecting Test Equipment in a Serial Connection Tab When using the auto-detection feature to select test equipment, the CDMA LMF examines which test equipment items are actually communicating with CDMA 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 In the menu bar, click Options and select LMF Options... from the pulldown. The LMF Options window appears. Click on the Serial Connection tab (if not in the forefront). Select the correct serial port in the COMM Port pick list (normally COM1). Click on Auto–Detection (if not enabled). Type in the GPIB addresses in the box labeled GPIB address to search (if not already displayed). * IMPORTANT When both a power meter and analyzer are selected, the first item listed in the GPIB addresses to search box will be 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) will be 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. Click Apply. The button will darken until the selection has been committed. A check mark will appear in the Manual Configuration section for detected test equipment items. Click Dismiss to close the LMF Options window. 08/01/2001 PRELIMINARY 3-57 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued Calibrating Test Equipment 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 (for example, an HP 437 and an HP8921A/600), only the power meter is zeroed. Calibrate Test Equipment from the Util menu list is used to calibrate test equipment item before being used for testing. The test equipment must be selected before beginning calibration. Follow the procedure in Table 3-25 to calibrate the test equipment. Table 3-25: Test Equipment Calibration Step Action From the Util menu, select Calibrate Test Equipment. A Directions window is displayed. Follow the instructions provided. Follow the direction provided. Click on Continue to close the Directions window. A status window is displayed. Click on OK to close the status report window. Calibrating Cables – Overview The cable calibration function is used to measure 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 steps. S Measure the loss of a short cable. This is done to compensate for any measurement error of the analyzer. The short cable, which is used only for the calibration process, is used in series with both the TX and RX cable configuration when they are measured. 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. This deduction is done so any error in the analyzer measurement will be adjusted out of both the TX and RX measurements. S 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 the test equipment. For BTSs with antenna ports carrying duplexed TX and RX, a directional coupler and, if required by BTS type, an additional attenuator are also used on the RX cable configuration and must be included in the measurement. S 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 BTS type. The total loss of the path loss 3-58 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued of the TX cable configuration must be as required for the BTS (normally 30 or 50 dB). The Motorola Cybertest analyzer is different in that the required attenuation/load is built into the test set so the TX cable configuration consists only of the required length coax cable. Calibrating Cables with a CDMA Analyzer The Cable Calibration menu item from the Util menu list is used to calibrate both TX and RX test cables for use with CDMA LMF. NOTE LMF cable calibration cannot be accomplished with an HP8921A analyzer for 1.9 MHz. A different analyzer type or the signal generator and spectrum analyzer method must be used (refer to Table 3-27 and Table 3-28). Cable calibration values must be manually entered if the signal generator and spectrum analyzer method is used. For the HP8921A, refer to Appendix F. The test equipment must be selected before this procedure can be started. Follow the procedure in Table 3-26 to calibrate the cables. Figure 3-14 illustrates the cable calibration test equipment setup. Table 3-26: Cable Calibration Step Action From the Util menu, select Cable Calibration. A Cable Calibration window is displayed. Enter a channel number(s) in the Channels box. 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 will be calibrated for each channel. Interpolation will be accomplished for other channels as required for TX calibration. Select TX and RX CABLE CAL, TX CABLE CAL or RX CABLE CAL in the Cable Calibration picklist. Click OK. Follow the directions displayed for each step. A status report window will be displayed with the results of the cable calibration. 08/01/2001 PRELIMINARY 3-59 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued Calibrating TX Cables Using a Signal Generator and Spectrum Analyzer Follow the procedure in Table 3-27 to calibrate the TX cables using the signal generator and spectrum analyzer. Refer to Figure 3-19 for a diagram of the signal generator and spectrum analyzer. Table 3-27: Calibrating TX Cables Using Signal Generator and Spectrum Analyzer Step Action Connect a short test cable between the spectrum analyzer and the signal generator. Set signal generator to 0 dBm at the customer frequency of the 869.7–893.31 MHz band for North American cellular and 1930–1990 MHz band for North American PCS. Use spectrum analyzer to measure signal generator output (see Figure 3-19, “A”) and record the value. Connect the spectrum analyzer’s short cable to point “B”, as shown in the lower portion of the diagram, to measure cable output at customer frequency (869.7–893.31 MHz band for North American cellular and 1930–1990 MHz for North American PCS) and record the value at point “B”. 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. Figure 3-19: Calibrating Test Equipment Setup for TX Cable Calibration (Using Signal Generator and Spectrum Analyzer) Signal Generator Spectrum Analyzer 40W NON–RADIATING RF LOAD SHORT TEST CABLE THIS WILL BE THE CONNECTION TO THE TX PORTS DURING TX CALIBRATION AND TO THE TX/RX PORTS DURING ATP TESTS. 50 OHM TERMINATION Spectrum Analyzer ONE 20DB 20 W IN LINE ATTENUATOR (1.9 GHZ ONLY) 30 DB DIRECTIONAL COUPLER SHORT TEST CABLE THIS WILL BE THE CONNECTION TO THE POWER METER DURING TX CALIBRATION AND TO THE CDMA ANALYZER DURING TX ATP TESTS. 3-60 Signal Generator SECOND RF TEST CABLE. FW00293 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued 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 3-20, if required. Table 3-28: Calibrating RX Cables Using a Signal Generator and Spectrum Analyzer Step Action Connect a short test cable to the spectrum analyzer and connect the other end to the Signal Generator. Set signal generator to –10 dBm at the customer’s RX frequency of 824.7–848.31 MHz for North American cellular or 1850–1910 MHz band for North American PCS. Use spectrum analyzer to measure signal generator output (see Figure 3-20, “A”) and record the value for “A”. Connect the test setup, as shown in the lower portion of the diagram, to measure the output at the customer’s RX frequency (824.7–848.31 MHz for North American cellular or 1850–1910 MHz band for North American PCS). Record the value at point ‘‘B”. * IMPORTANT When preparing to calibrate a BTS with duplexed TX and RX the cable calibration setup must include the 30 dB directional coupler and 20 dB in–line attenuator as in the TX cable calibration shown in Figure 3-19. Calibration factor = A – B Example: Cal = –12 dBm – (–14 dBm) = 2 dB NOTE The short test cable is used for test equipment setup 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. Figure 3-20: Calibrating Test Equipment Setup for RX ATP Test (Using Signal Generator and Spectrum Analyzer) Signal Generator Signal Generator Spectrum Analyzer CONNECTION TO THE OUTPUT PORT DURING RX MEASUREMENTS SHORT TEST CABLE Spectrum Analyzer IMPORTANT: IF BTS RX/TX SIGNALS ARE DUPLEXED, THE RX TEST CABLE CONNECTS TO THE DUPLEXED ANTENNA GROUP AND MUST USE/BE CALIBRATED WITH THE 30 DB DIRECTIONAL COUPLER AND 20 DB IN–LINE ATTENUATOR. SEE FIGURE 3-19. 08/01/2001 CONNECTION TO THE RX PORTS DURING RX MEASUREMENTS. SHORT TEST CABLE BULLET CONNECTOR LONG CABLE 2 PRELIMINARY 3-61 1X SCt4812ET Lite BTS Optimization/ATP Test Set Calibration – continued Setting Cable Loss Values Cable loss values for the TX and RX test cable configurations are normally set by accomplishing automatic cable calibration with use of the applicable test equipment. The resulting values are stored in the cable loss files. The cable loss values can also be set/changed manually. CAUTION Cable loss values must be manually entered in the LMF database if manual cable calibration was performed. Failure to do this will result in inaccurate BTS calibration and reduced site performance. Prerequisites S Logged into the BTS Table 3-29: Setting Cable Loss Values Step Action Click on the Util menu. Select Edit > Cable Loss > TX or RX. A data entry pop–up window will appear. Click on the Add Row button to add a new channel number. Then click in the Channel # and Loss (dBm) columns and enter the desired values. To edit existing values click in the data box to be changed and change the value. To delete a row, click on the row and then click on the Delete Row button. Click on the Save button to save displayed values. Click on the Dismiss button to exit the window. Values that were entered/changed after the Save button was used will not be saved. NOTE S If cable loss values exist for two different channels the LMF will interpolate for all other channels. S Entered values will be used by the LMF as soon as they are saved. You do not have to logout and login. 3-62 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 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. Prerequisites S Logged into the BTS Table 3-30: Setting TX Coupler Loss Values Step Action Click on the Util menu. Select Edit > TX Coupler Loss. A data entry pop–up window will appear. Click in the Loss (dBm) column for each carrier that has a coupler and enter the appropriate value. To edit existing values click in the data box to be changed and change the value. Click on the Save button to save displayed values. Click on the Dismiss button to exit the window. Values that were entered/changed after the Save button was used will not be saved. NOTE S The In–Service Calibration check box in the Options > LMF Options > BTS Options tab must checked before entered TX coupler loss values will be used by the TX calibration and audit functions. S Entered values will be used by the LMF as soon as they are saved. You do not have to logout and login. 08/01/2001 PRELIMINARY 3-63 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration Introduction Calibration compensates for normal equipment variations within the BTS and assures maximum measurement accuracy. RF Path Bay Level Offset Calibration Bay Level Offset (BLO) calibration identifies the accumulated gain in every transmit path (BBX2 slot) at the BTS site and stores that value in the CDMA LMF CAL file. The BLOs are subsequently downloaded to each BBX2. Each transmit path starts at an SCCP shelf backplane BBX2 slot, travels through the CIO card, trunking module, LPA, trunking module (again), TX filter or TX filter combiner, DRDC or TRDC, and ends at a BTS TX antenna port. Each receive path starts at a BTS RX antenna port, travels through a DRDC or TRDC, the MPC card, the CIO card, and terminates at a backplane BBX2 slot. Calibration identifies the accumulated gain in every transmit path ( by BBX2 slot) at the BTS site and stores that value in the CAL file. When the TX path calibration is performed, the RX path BLO will automatically be set to the default value. When to Calibrate BLOs Calibration of BLOs is required after initial BTS installation. The BLO data of an operational BTS site must be re-calibrated once each year. Motorola recommends re-calibrating the BLO data for all associated RF paths after replacing any of the following components or associated interconnecting RF cabling: 3-64 BBX2 board SCCP shelf CIO card CIO–to–LPA trunking module RF cable LPA trunking module LPA Trunking module–to–TX filter/filter combiner RF cable TX filter or TX filter combiner TX filter/filter combiner–to–DRDC/TRDC cable DRDC or TRDC 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued 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. WARNING 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. 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 SCCP shelf (if the shelf is not already fully populated with BBX2 boards), move BBX2 boards from shelves currently not under test and install them into the empty BBX2 slots of the shelf currently being tested to insure that all BBX2 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 BBX2 slots are equipped. Edit the file as required to include BBX2 slots not currently equipped (per Systems Engineering documentation). RX Path Calibration RX path calibration is not required or supported on CDMA BTS systems. Default RX calibration values are written to the RX calibration data files during the TX calibration routine. Functionality is verified during Frame Erasure Rate (FER) testing. 08/01/2001 PRELIMINARY 3-65 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued BLO Calibration Data File During the calibration process, the CDMA LMF creates a calibration (CAL) data file where BLO values are stored. After calibration has been completed, this offset data must be downloaded to the BBX2s using the CDMA LMF Download BLO function. An explanation of the file is shown below. NOTE Due to the size of the file, Motorola recommends printing out a copy of a bts.cal file and referring to it for the following descriptions. The CAL file is subdivided into sections organized on a per–slot basis (a slot Block). The Slot 1 Block contains the calibration data for the six BBX2 slots. The Slot 20 Block contains the calibration data for the redundant BBX2 (see Table 3-32). Each BBX2 slot Block header contains: S A creation Date and Time – broken down into separate parameters of createMonth, createDay, createYear, createHour, and createMin. S The number of calibration entries – fixed at 720 entries corresponding to 360 calibration points of the CAL file – plus the slot Block format. Within the slot Block body, the BBX2 calibration data (BayLevelCal) is organized as a large flat array. The array is organized by branch, BBX2 SCCP cage slot, and calibration point. S 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 Branch Assignments 3-66 Range Branch Assignment C[1]–C[120] Transmit C[121]–C[240] No SC4812ET Lite BLO cal point entries (default only) C[241]–C[360] Receive C[361]–C[480] No SC4812ET Lite BLO cal point entries (default only) C[481]–C[600] Diversity Receive C[601]–C[720] No SC4812ET Lite BLO cal point entries (default only) 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued S The second breakdown of the array is by BBX by sector. Three sectors are allowed. Table 3-32: SC4812ET Lite BTS.cal File Array (Per Sector) BBX2 Sectorization TX Branch RX Branch RX Diversity Branch Slot[1] (Primary BBX2s 1 through 6) 1 (Omni) 3–Sector, 1st Carrier 3–Sector, 2nd Carrier Not Used in SC4812ET Lite (CAL file entries are Channel 0 with default power set level.) 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] Slot[20] (Redundant BBX2–R1) 1 (Omni) 3–Sector, 1st Carrier 3–Sector, 2nd Carrier Not Used in SC4812ET Lite (CAL file entries are Channel 0 with default power set level.) 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] S Refer to the CAL file print–out and Table 3-32. It can be seen that there is one BBX2 slot per sector, and 10 calibration points for each BBX2 (sector) are supported for each branch. Each “calibration point” consists of two entries. S The first entry for a calibration point (all odd entries) identifies the CDMA channel (frequency) where the BLO is measured. The second calibration point entry (all even entries) is the power set level (PwrLvlAdj). The valid range for PwrLvlAdj is from 2500 to 27500 08/01/2001 PRELIMINARY 3-67 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued (2500 corresponds to –125 dBm and 27500 corresponds to +125 dBm). S The 10 calibration points for each slot/branch combination must be stored in order of increasing frequency. If less than 10 points (frequencies) are calibrated, the BLO data for the highest frequency calibrated is written into the remainder of the 10 points for that slot/branch. Example: C[1]=384 (odd cal entry) C[2]=19102 = 1 “calibration point” (even cal entry) C[3]=777 (odd cal entry) C[4]=19086 (even cal entry) C[19]=777 (odd cal entry) C[20]=19086 (even cal entry) In the example above, BLO was measured at only two frequencies (channels 384 and 777) for SCCP slot BBX–1 transmit (Table 3-32). The BLO data for the highest frequency measured (777) will be written to the remaining eight transmit calibration points (defined by entries C[5] through C[20]) for BBX2–1. S When BLO data is downloaded to the BBXs, the data is downloaded to the devices in the order it is stored in the CAL file. TxCal data (C[1] – C[60]) is sent first. BBX2 slot 1’s 10 calibration points (C[1] – C[20]) are sent initially, followed by BBX2 slot 2’s 10 calibration points (C[21] – C[40]), and so on. The RxCal data is sent next, followed by the RxDCal data. S Temperature compensation data (TempLevelCal) is also stored in the CAL file for each slot Block. Test Equipment Setup: RF Path Calibration Follow the steps outlined in Table 3-33 and refer as needed to Figure 3-15 or Figure 3-16 to set up test equipment. Table 3-33: Set Up Test Equipment (RF Path Calibration) Step 3-68 Action If it has not already been done, refer to the procedure in Table 3-6 to interface the CDMA LMF computer terminal to the frame LAN A connector. If it has not already been done, refer to Table 3-7 to start a GUI LMF session. If required, calibrate the test equipment per the procedure in Table 3-25. 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued Table 3-33: Set Up Test Equipment (RF Path Calibration) Step Action ! CAUTION To prevent damage to the test equipment, all transmit (TX) test connections must be via the 30 dB directional coupler for 800 MHz or via a 30 dB coupler with a 20 dB in–line attenuator for 1900 MHz. For TX path calibration, verify that the coaxial cable from the appropriate ANTENNA connector (Figure 1-6 or Figure 1-7) is connected to the test equipment RF input port via the directional coupler. Transmit (TX) Path Calibration The assigned channel frequency and desired power level at the frame TX ports for transmit calibration are derived from the BTS CDF file. Each BBX2 at the site is assigned to a sector and carrier. These are specified respectively in the sector and carrier fields of the ParentCARRIER parameter in each BBX2’s CDF file block. The channel frequency and desired power for the assigned sector are specified respectively in the ChannelList and SIFPilotPwr parameters of the CDF block for the CARRIER to which the BBX2 is assigned. The calibration procedure attempts to adjust the measured power to within +0.5 dB of the desired power. The calibration will pass if the error is less than +1.5 dB. The TX BLO for the SC4812ET Lite is approximately 42.0 dB ±5.0 dB. BLO is the gain in dB between the known power output of the BBX2 and the measured power at the TX port. BLO is derived by deducting the known BBX2 power output from the power measured at the TX port or (Measured Power) – (BBX2 TX Power Output). Example: Measured Power (at TX port) = 36.0 dBm Known BBX TX Power Output = –6.0 dBm BLO = (36.0) – (–6.0) = 42.0 dB gain The CDMA LMF Tests menu list items TX Calibration and All Cal/Audit perform TX BLO Calibration testing for installed BBX(s). The All Cal/Audit menu item initiates a series of actions to perform TX calibration, download BLO, and perform TX audit if the TX calibration passes. The TX Calibration selection performs only the TX calibration. When the TX Calibration selection is used, BLO download and TX audit must be performed as separate activities. All measurements are made through the appropriate antenna connector using the calibrated TX cable setup. In both the TX Calibration and All Cal/Audit dialog boxes, a Verify BLO checkbox is provided and checked by default. After the actual TX calibration is completed during either the TX Calibration or All Cal/Audit process, the BLO derived from the calibration is compared to a standard, acceptable BLO tolerance for the BTS. In some installations, 08/01/2001 PRELIMINARY 3-69 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued additional items may be installed in the transmit path. The additional change in gain from these items could cause BLO verification failure and, therefore, failure of the entire calibration. In these cases, either the Verify BLO checkbox should be unchecked or the additional path losses should be added into each applicable sector using the Util > Edit > TX Coupler Loss... function. Prerequisites Before running this test, ensure that the following have been done: S CSM–1, GLIs, MCCs, and BBX2s have correct code load and data load. S Primary CSM and MGLI are INS. S All BBX2s are OOS_RAM. S Test equipment and test cables are calibrated and connected for TX BLO calibration. S LMF is logged into the BTS in the GUI environment. Connect the test equipment as shown in Figure 3-15 and Figure 3-16 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 BBX2 channels keyed. Failure to do so can result in serious personal injury and/or equipment damage. IMPORTANT 3-70 Verify all BBX2 boards removed and repositioned have been returned to their assigned shelves/slots. Any BBX2 boards moved since they were downloaded will have to be downloaded again. 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued Table 3-34: All Cal/Audit Path Calibration Step Action Configure test equipment for TX path calibration per Table 3-33. Select the BBX2(s) to be calibrated. From the Tests menu, select All Cal/Audit. Select the appropriate carrier(s) displayed in the Channels/Carrier pick list. Press and hold the or key to select multiple items. Type the appropriate channel number in the Carrier n Channels box. Click on OK. Follow the cable connection directions as they are displayed. The test results will be displayed in the status report window. Click on Save Results or Dismiss to close the status report window. TX Calibration Test Prerequisites Ensure the following prerequisites have been met before proceeding: S MGLI and primary CSM and BDC are INS_ACT (CSM clock valid) S All BBXs are OOS–RAM (yellow) S Test equipment and test cables are calibrated and connected for TX BLO calibration S LMF is logged in to the BTS in the GUI environment IMPORTANT Verify all BBX boards removed and repositioned have been returned to their assigned shelves/slots. Any BBX boards moved since being downloaded will have to be downloaded with code and data again. If just a TX calibration must be run by itself, follow the procedures in Table 3-35. Table 3-35: TX Calibration Test Step Action Configure test equipment for TX path calibration per Table 3-33. Click on the BBX(s) to be calibrated. From the Tests menu, select TX Calibration. Select the appropriate carrier(s) displayed in the Channels/Carrier pick list (press and hold the Shift or Ctrl keyboard key to select multiple items). . . . continued on next page 08/01/2001 PRELIMINARY 3-71 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued Table 3-35: TX Calibration Test Step Action Enter the appropriate channel number in the Carrier n Channels box. Click OK to display the status report window followed by a Directions pop-up window. Follow the cable connection directions as they are displayed. The test results will be displayed in the status report window. Click OK 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. Download BLO Procedure After a successful TX path calibration, download the bay level offset (BLO) calibration file data to the BBX2s. BLO data is extracted from the CAL file for the Base Transceiver Subsystem (BTS) and downloaded to the selected BBX2 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. S BBXs being downloaded are OOS–RAM (yellow). S TX calibration successfully completed After a TX calibration has been performed using the procedure in Table 3-35, follow the steps in Table 3-36 to download the BLO data to the BBX2s. 3-72 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued Table 3-36: Download BLO Step Action Select the BBX2(s) to be downloaded. 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. Click OK to close the status report window. Calibration Audit Introduction The BLO calibration audit procedure confirms the successful generation and storage of the BLO calibrations. The calibration audit procedure measures the path gain or loss of every BBX2 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 RF path verification, BLO calibration, and BLO data download to BBX2s must have been successfully completed prior to performing the calibration audit. Transmit (TX) Path Audit Perform the calibration audit of the TX paths of all equipped BBX2 slots, per the steps in Table 3-37. WARNING Before installing any test equipment directly to any TX OUT connector, first verify there are no CDMA BBX2 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. 08/01/2001 PRELIMINARY 3-73 1X SCt4812ET Lite BTS Optimization/ATP Bay Level Offset Calibration – continued TX Audit Test The Tests menu item, TX Audit, performs the TX BLO Audit test for a BBX2(s). All measurements are made through the appropriate TX output connector using the calibrated TX cable setup. Prerequisites Before running this test, the following should be done: S CSM–1,GLI2s, BBX2s have correct code load. S Primary CSM and MGLI2 are INS. S All BBX2s are OOS_RAM. S Test equipment and test cables are calibrated and connected for TX BLO calibration. S LMF is logged into the BTS. After a TX calibration has been performed using the procedure in Table 3-35, or if verification of BLO data in the CAL file is required, connect the test equipment as shown in Figure 3-15 or Figure 3-16 and follow the procedure in Table 3-37 to perform the BTS TX Path Audit test. Table 3-37: TX Path Audit Step Action Select the BBX2(s) to be audited. From the Tests menu, select TX Audit. Select the appropriate carrier(s) displayed in the Channels/Carrier pick list. Press and hold the or key to select multiple items. Type the appropriate channel number in the Carrier n Channels box. Click on OK. Follow the cable connection directions as they are displayed. A status report window displays the test results. Click on Save Results or Dismiss to close the status report window. 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. 3-74 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 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 will exist. Note the following: S The Create Cal File function only applies to selected (highlighted) BBXs. CAUTION Editing the CAL file is not encouraged 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 will be lost. Prerequisites Before running this test, the following should be done: S LMF is logged into the BTS S BBX2s are OOS_RAM with BLO downloaded Table 3-38: Create CAL File Step Action Select the applicable BBX2s. The CAL file will only be updated for the selected BBX2s. Click on the Device menu. Click on the Create Cal File menu item. The status report window displays the results of the action. Click OK. 08/01/2001 PRELIMINARY 3-75 1X SCt4812ET Lite BTS Optimization/ATP RFDS Setup and Calibration RFDS Description The optional RFDS is used to perform RF tests of the site from the CBSC or from the LMF. The RFDS contains the following FRUs: S Antenna Select Unit (ASU) S FWT Interface Card (FWTIC) S Subscriber Unit Assembly (SUA) For complete information regarding the RFDS, refer to the CDMA CDMA RFDS Hardware Installation; 68P64113A93, CDMA RFDS User’s Guide; 68P64114A51, and the LMF Help function. 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. S RfdsEquip – valid inputs are 0 through 2. 0 = (default) RFDS is not equipped 1 = Non-Cobra/Patzer box RFDS 2 = Cobra RFDS S TsuEquip – valid inputs are 0 or 1 0 = (default) TSU not equipped 1 = TSU is equipped in the system S MC1....4 – valid inputs are 0 or 1 0 = (default) Not equipped 1 = Multicouplers equipped in RFDS system (SC9600 internal RFDS only) S Asu1/2Equip – valid inputs are 0 or 1 0 = (default) Not equipped 1 = Equipped S TestOrigDN – valid inputs are ’’’ (default) or a numerical string up to 15 characters. (This is the phone number the RFDS dials when originating a call. A dummy number needs to be set up by the switch, and is to be used in this field.) NOTE Any text editor may be used to open the bts–#.cdf file to verify, view, or modify data. 3-76 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY RFDS Setup and Calibration – continued Table 3-39: RFDS Parameter Settings Step Action * IMPORTANT Log out of the BTS prior to performing this procedure. Using a text editor, verify the following fields are set correctly in the bts–#.cdf file (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–R and copied to the LMF. These fields will have been set by the OMC–R if the RFDSPARM database is modified for the RFDS. Save 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). 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 is displayed showing status of the download. Click OK to close the status report window. ! CAUTION After downloading data to the GLI2 the RFDS LED will slowly begin flashing red and green for approximately 2–3 minutes. DO NOT attempt to perform any functions with the RFDS until the LED remains green. Status the RFDS TSU. A status report is displayed showing the software version number for the TSIC and SUA. * IMPORTANT If the LMF yields an error message, check the following: Ensure AMR cable is correctly connected from the BTS to the RFDS. Verify RFDS has power. Verify RFDS status LED is green. Verify fields in the bts-#.cdf file are correct (see Step 1). Status the GLI2 and ensure the device is communicating (via Ethernet) with the LMF, and the device is in the proper state (INS). 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-77 RFDS Setup and Calibration – continued RFDS TSU NAM Programming The NAM (number assignment module) information needs to be programmed into the TSU before it can receive and process test calls, or be used for any type of RFDS test. The RFDS TSU NAM must be programmed with the appropriate system parameters and phone number during hardware installation. The TSU phone and TSU MSI must be recorded for each BTS used for OMC–R RFDS software configuration. NOTE The user will only need to program the NAM for the initial install of the RFDS. Explanation of Parameters used when Programming the TSU NAM Table 3-40 defines the parameters used when editing the tsu.nam file. Table 3-40: Definition of Parameters Access Overload Code Slot Index System ID Network ID These parameters are obtained from the switch. Primary Channel A Primary Channel B Secondary Channel A Secondary Channel B These parameters are the channels which are to be used in operation of the system. Lock Code Security Code Service Level Station Class Mark Do NOT change. IMSI MCC IMSI 11 12 These fields are obtained at the OMC using the following command: OMC000>disp bts–# imsi If the fields are blank, replace the IMSI fields in the NAM file to 0, otherwise use the values displayed by the OMC. MIN Phone Number These fields are the phone number assigned to the mobile. The ESN and MIN must be entered into the switch as well. NOTE This field is different from the TODN field in the bts-#.cdf file. The MIN is the phone number of the RFDS subscriber, and the TODN is the number the subscriber calls. 3-78 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY 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 will error out. Table 3-41: Valid NAM Field Ranges Valid Range Minimum Maximum Access Overload Code 15 Slot Index System ID 32767 Network ID 32767 Primary Channel A 25 1175 Primary Channel B 25 1175 Secondary Channel A 25 1175 Secondary Channel B 25 1175 Lock Code 999 Security Code 999999 Service Level Station Class Mark 255 IMSI 11 12 99 IMSI MCC 999 N/A N/A NAM Field Name MIN Phone Number 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-79 RFDS Setup and Calibration – continued Set Antenna Map Data The antenna map data must be entered manually if an RFDS is installed. Antenna map data does not have to be entered if an RFDS is not installed. The antenna map data is only used for RFDS tests and is required if a RFDS is installed. Prerequisite S Logged into the BTS Table 3-42: Set Antenna Map Data Step Action Click on the Util menu. Select Edit > Antenna Map > TX or RX. A data entry pop–up window will appear. Enter/edit values as required for each carrier. NOTE Refer to the Util > Edit–antenna map LMF help screen for antenna map examples. Click on the Save button to save displayed values. Click on the Dismiss button to exit the window. Values that were entered/changed after the Save button was used will not be saved. NOTE Entered values will be used by the LMF as soon as they are saved. You do not have to logout and login. 3-80 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY RFDS Setup and Calibration – continued Set RFDS Configuration Data If an RFDS is installed the RFDS configuration data must be manually entered. Prerequisite S Logged into the BTS IMPORTANT The entered antenna# index numbers must correspond to the antenna# index numbers used in the antenna maps. Table 3-43: Set RFDS Configuration Data Step Action Click on the Util menu. Select Edit > RFDS Configuration > TX or RX. A data entry pop–up window will appear. Click on the Add Row button to add a new antenna number. Then click in the other columns and enter the desired data. To edit existing values click in the data box to be changed and change the value. NOTE Refer to the Util > Edit–RFDS Configuration LMF help screen for RFDS configuration data examples. To delete a row, click on the row and then click on the Delete Row button. Click on the Save button to save displayed values. Click on the Dismiss button to exit the window. Values that were entered/changed after the Save button was used will not be saved. NOTE Entered values will be used by the LMF as soon as they are saved. You do not have to logout and login. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-81 RFDS Setup and Calibration – continued RFDS Calibration The RFDS Calibration option is used to calibrate 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 CDMA communications analyzer. The difference (offset) between the RFDS keyed power level and 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. For each RFDS TSIC, the channel frequency is determined at the lower third and upper third of the appropriate band using the frequencies listed in Table 3-44. Table 3-44: RFDS TSIC Calibration Channel Frequencies System Channel Calibration Points 800 MHz (A and B) 341 and 682 1.9 GHz 408 and 791 WARNING Before installing any test equipment directly to any TX OUT connector, verify that there are no CDMA BBX channels keyed. Failure to do so can result in serious personal injury and/or equipment damage. Prerequisites S BBX2s are INS_TEST S Cable calibration has been performed S TX calibration has been performed and BLO has been downloaded for the BTS S Test equipment has been connected correctly for a TX calibration S Test equipment has been selected and calibrated 3-82 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY RFDS Setup and Calibration – continued Table 3-45: RFDS Calibration Step Action Select the RFDS tab. Click on the RFDS menu. Click on the RFDS Calibration menu item. Select the appropriate direction (TX/RX) in the Direction pick list. Enter the appropriate channel number(s) in the Channels box. Separate the channel numbers with a comma or a dash if more than one channel number is entered (e.g., 247,585,742 or 385–395 for through). Select the appropriate carrier(s) in the Carriers pick list (use the Shift or Ctrl key to select multiple carriers). Select the appropriate RX branch (Both, Main, or Diversity) in the RX Branch pick list. Select the appropriate baud rate (1=9600, 2=14400) in the Rate Set pick list. 11 Click on the OK button. A status report window is displayed, followed by a Directions pop–up window. Follow the cable connection directions as they are displayed. Test results are displayed in the status report window. 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. 10 NOTE The MGLI will automatically transfer the RFDS offset data from the CAL file to the RFDS. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-83 RFDS Setup and Calibration – continued Program TSU NAM Follow the procedure in Table 3-46 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 S MGLI is INS. S TSU is powered up and has a code load. Table 3-46: Program NAM Procedure Step Action Select the RFDS tab. Select the TSU tab. Click on the TSU menu. Click on the Program TSU NAM menu item. Enter the appropriate information in the boxes (see Table 3-40 and Table 3-41) . Click on the OK button to display the status report. Click on the OK button to close the status report window. 3-84 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Alarms Testing Alarm Verification The alarms testing should be performed at a convenient point in the optimization/ATP process, since the LMF is necessary to ensure that the SC4812ET Lite is generating the appropriate alarms. The SC 4812ET Lite is capable of concurrently monitoring 10 customer defined input signals and four customer defined outputs, which interface to the 50–pair punchblock. All alarms are defaulted to “Not Equipped” during ATP testing. Testing of these inputs is achieved by triggering the alarms and monitoring the LMF for state–transition messages from the active MGLI2. Alarm Reporting Display The Alarm Monitor window can be displayed to list alarms that occur after the window is displayed. To access the Alarm Monitor window, select Util > Alarm Monitor. The following buttons are included. S The Options button allows for a severity level (Warning, Minor, Major, Critical, and Unknown) selection. The default is all levels. To change the level of alarms reported click on the Options button and highlight the desired alarm level(s). To select multiple levels press the Ctrl key (for individual selections) or Shift key (for a range of selections) while clicking on the desired levels. S The Pause button can be used to pause/stop the display of alarms. When the Pause button is clicked the name of the button changes to Continue. When the Continue button is click the display of alarms will continue. Alarms that occur between the time the Pause button is clicked and the Continue button is clicked will not be displayed. S The Clear button can be used to clear the Alarm Monitor display. New alarms that occur after the Clear button is clicked will be displayed. S The Dismiss button is used to dismiss/close the Alarm Monitor display. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-85 Alarms Testing – continued Alarm Testing Set–up Prepare for any alarm testing by following the procedures in Table 3-47. Table 3-47: Alarm Testing Preparation Step Action If it has not already been done, refer to the procedure in Table 3-6 to interface the CDMA LMF computer terminal to the frame LAN A connector. If it has not already been done, refer to Table 3-7 to start a GUI LMF session. Click on Util in the menu bar and select Alarm Monitor... from the pulldown. S An Alarm Monitor window will open. Heat Exchanger Alarm Test Table 3-48 gives instructions on testing the Heat Exchanger alarm. Table 3-48: Heat Exchanger Alarm Step Action Set one of the two DC PDA heat exchanger circuit breakers to OFF. This will generate a heat exchanger alarm. Be sure that the CDMA LMF reports the correct alarm condition. Alarm condition will be reported as BTS Relay #14, BTS Relay #15, BTS Relay #16, BTS Relay #17, BTS Relay #18, with Contact Alarm Open*Clear*, respectively. Set the circuit breaker turned off in step 1 to ON. Ensure that the alarm conditions have cleared on the CDMA LMF with Contact Alarm Closed*Clear* for each reported BTS relay. NOTE The heat exchanger will go through the start–up sequence. Door Alarm Table 3-49 gives instructions on testing the door alarms. Table 3-49: ACLC and Power Entry Door Alarm Step Action Close the ACLC and power entry compartment doors on the frame. Ensure that no alarms are reported on the CDMA LMF. Individually open and then close the ACLC and power entry compartment door. Ensure that the CDMA LMF reports an alarm when each door is opened. Alarm condition will be reported as BTS Relay #27 contact. 3-86 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Alarms Testing – continued AC Fail Alarm Table 3-50 gives instructions on testing the AC Fail Alarm. Table 3-50: AC Fail Alarm Step Action * IMPORTANT S Back–up batteries must be installed when performing this test. S To prevent inadvertently shutting down the RF compartment electronics, the batteries should be charged before performing this test. Set the ACLC MAIN circuit breaker to OFF. S The CDMA LMF should report an alarm for an AC Fail condition as BTS Relay #21, BTS Relay #23, BTS Relay #24, and BTS Relay #29 contacts, respectively. S On the MAP, the MAJOR ALARM (red), MINOR ALARM (amber), and RECTIFIER FAIL (red) LEDs should light. S On the rectifiers, the DC and PWR LEDs should light red. Set the ACLC MAIN circuit breaker to ON. S On the CDMA LMF, the AC Fail alarm should clear. S On the MAP, the MAJOR ALARM, MINOR ALARM, and RECTIFIER FAIL LEDs should extinguish. S On the rectifiers, the DC and PWR LEDs should change to green. Minor Alarm Table 3-51 gives instructions on performing a test to display a minor alarm. Table 3-51: Minor Alarm Step Action Set the TCP switch on the MAP to OFF. This will generate a minor alarm. S The CDMA LMF should report the minor alarm as BTS Relay #24 contacts. S The TC DISABLE (red) and MINOR ALARM (amber) LEDs on the MAP should light. Set the TCP switch to ON. The alarm condition indications should clear. Rectifier Alarms The following series of tests are for single rectifier modules in a multiple rectifier system. The systems include a three rectifier and a four rectifier system. Single Rectifier Failure (Three Rectifier System) Table 3-52 gives instructions on testing single rectifier failure or minor alarm in a three (3) rectifier system (single–carrier system). Procedures 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-87 Alarms Testing – continued in this test are for a frame configured for single carrier operation with rectifiers installed in rectifier shelf positions 2, 3, and 4, from left to right when facing the frame. Table 3-52: Single Rectifier Fail or Minor Alarm, Single–Carrier System Step Action ! CAUTION Only perform this test if the rectifier current load displayed on the AMP indicator on the MAP is 125 amps or less. Sufficient current capability to support a greater load may not be available when one rectifier is removed from the bus. On the ACLC, set the RECT. 2/4 circuit breaker to OFF. S The DC and PWR LEDs should light red on the rectifier in shelf position 2. S The MINOR ALARM (amber) and RECTIFIER FAIL (red) LEDs on the MAP should light. S The CDMA LMF should report an alarm condition as BTS Relay #21 and BTS Relay #24 contacts, respectively. Set the RECT. 2/4 circuit breaker on the ACLC to ON. S All alarm indications should clear on the rectifier, MAP, and CDMA LMF. Multiple Rectifier Failure (Three Rectifier System) Table 3-53 gives instructions on testing multiple rectifier failure or major alarm in a three (3) rectifier system (single–carrier system). Procedures in this test are for a frame configured for single carrier operation with rectifiers installed in rectifier shelf positions 2, 3, and 4, from left to right when facing the frame. Table 3-53: Multiple Rectifier Failure or Major Alarm, Single–Carrier System Step Action ! CAUTION Only perform this test if the rectifier current load displayed on the AMP indicator on the MAP is 65 amps or less. Sufficient current capability to support a greater load may not be available when two rectifiers are removed from the bus. On the ACLC, set the RECT. 1/3 circuit breaker to OFF. S The DC and PWR LEDs should light red on the rectifiers in shelf positions 1 and 3. S The MAJOR ALARM (red), MINOR ALARM (amber), and RECTIFIER FAIL (red) LEDs on the MAP should light. S The CDMA LMF should report an alarm condition as BTS Relay #21, BTS Relay #24, and BTS Relay #29 contacts, respectively. Set the RECT. 1/3 circuit breaker on the ACLC to ON. S All alarm indications should clear on the rectifiers, MAP, and CDMA LMF. 3-88 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Alarms Testing – continued Single Rectifier Failure (Four Rectifier System) Table 3-54 gives instructions on testing single rectifier failure or minor alarm in a four (4) rectifier system (two–carrier system). Table 3-54: Single Rectifier Fail or Minor Alarm, Two–Carrier System Step Action ! CAUTION Only perform this test if the rectifier current load displayed on the AMP indicator on the MAP is 125 amps or less. Sufficient current capability to support a greater load may not be available when two rectifiers are removed from the bus in the following steps. Unseat the rectifier in shelf position 4 from its connection at the rear of the shelf, but do not completely remove it from the shelf. S The rectifier 4 DC and PWR LEDs may light red momentarily and extinguish. There should be no other indications on the frame or CDMA LMF. On the ACLC, set the RECT. 2/4 circuit breaker to OFF. S The rectifier 2 DC and PWR LEDs should light red. S The MINOR ALARM (amber) and RECTIFIER FAIL (red) LEDs on the MAP should light. S The CDMA LMF should report an alarm condition as BTS Relay #21 and BTS Relay #24 contacts, respectively. Re–seat the rectifier in shelf position 4 into its connection at the rear of the shelf. On the ACLC, set the RECT. 2/4 circuit breaker to ON. S The rectifier DC and PWR LEDs should light green. S All alarm indications should clear on the rectifiers, MAP, and CDMA LMF. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-89 Alarms Testing – continued Multiple Rectifier Failure (Four Rectifier System) Table 3-55 gives instructions on testing multiple rectifier failure or major alarm in a four (4) rectifier system (two–carrier system). Table 3-55: Multiple Rectifier Failure or Major Alarm, Two–Carrier System Step Action ! CAUTION Only perform this test if the rectifier current load displayed on the AMP indicator on the MAP is 125 amps or less. Sufficient current capability to support a greater load may not be available when two rectifiers are removed from the bus. On the ACLC, set the RECT. 2/4 circuit breaker to OFF. S The DC and PWR LEDs should light red on the rectifiers in shelf positions 2 and 4. S The MAJOR ALARM (red), MINOR ALARM (amber), and RECTIFIER FAIL (red) LEDs on the MAP should light. S The CDMA LMF should report an alarm condition as BTS Relay #21, BTS Relay #24, and BTS Relay #29 contacts, respectively. Set the RECT. 2/4 circuit breaker on the ACLC to ON. S All alarm indications should clear on the rectifiers, MAP, and CDMA LMF. Battery Over Temperature Alarm (Optional) CAUTION Use special care to avoid damaging insulation on cables, or damaging battery cases when using a heat gun. Table 3-56 gives instructions on testing the battery over–temperature alarm system. Table 3-56: Battery Over–Temperature Alarm Step Action Use a low–powered heat gun to gently heat the battery over–temperature sensor (see location in Figure 3-21). ! CAUTION To avoid damaging the cable insulation, do not hold the hot air gun closer than three (3) inches from the sensor. 3-90 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Alarms Testing – continued Table 3-56: Battery Over–Temperature Alarm Step Action NOTE When the over–temperature alarm point is reached, an audible click will sound as DC PDA relay K1 contacts engage and relay K2 contacts disengage (make–before–break operation). When the sensor is heated to approximately 51° C, a battery over–temperature alarm is generated with the following indications. S On the MAP, the CHARGE DISABLE LED (red) should light and the MAIN CONN. ENABLE LED (green) should extinguish. S The CDMA LMF should display an alarm condition as BTS Relay #22 contacts. Switch the hot air gun to cool. Cool the sensor until the K1 and K2 contacts return to normal position (K1 open and K2 closed). The following indications that alarms have cleared should occur: S On the MAP, the CHARGE DISABLE LED (red) should extinguish and the MAIN CONN. ENABLE (green) LED should light. S The alarm reported on CDMA LMF will clear 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-91 Alarms Testing – continued Figure 3-21: Battery Over–Temperature Sensor Bus Bar 6 AWG Cables Battery Overtemp Sensor Negative Temperature Compensation Sensor SC4812ETL0014–1 3-92 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Alarms Testing – continued Rectifier Over Temperature Alarm Table 3-57 gives instructions on testing the rectifier over–temperature alarm system. Table 3-57: Rectifier Over–Temperature Alarm Step Action Remove the 14 tamper–resistant Torx fasteners securing the rear access panel to the rear of the frame (Figure 2-1), and remove the rear access panel. NOTE Panel fastener type can be either T–27 button head or T–30 pan head. Looking up through the frame rear access opening, locate the rear of the MAP. Remove the jumper plug from connector J8 on the rear panel of the MAP (Figure 3-22). The following conditions should occur: S Contacts on K1 and K2 change states (K1 now closed and K2 open). S The CDMA LMF reports an alarm condition as BTS Relay #26 contacts. Reinstall the jumper plug in connector J8, and verify that all alarm conditions have cleared. Reinstall the frame rear access panel, securing it with the 14 tamper–resistant Torx fasteners removed in step 1. Figure 3-22: MAP Connector J8 (Rear of MAP) J12 J3 J8 J9 J7 J4 J5 J1 J2 CONNECTOR J8 SC4812ETL0021–1 Before Leaving the site If no further operations are required after performing the alarm tests, complete the requirements in Table 5-8 before leaving the site. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 3-93 Alarms Testing – continued Notes 3-94 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Chapter 4: Automated Acceptance Test Procedure (ATP) Table of Contents 08/01/2001 Automated Acceptance Test Procedure – Introduction . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TX/RX Antenna Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-1 4-2 4-2 Acceptance Tests – Test Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptance Test Equipment Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4-3 4-3 Abbreviated (All–inclusive) Acceptance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . All–inclusive Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All TX/RX ATP Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All TX ATP Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All RX ATP Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4-4 4-5 4-5 4-6 Individual Acceptance Tests–Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Individual Acceptance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Individual Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 4-7 4-7 TX Spectral Purity Transmit Mask Acceptance Test . . . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spectral Purity TX Mask Acceptance Test . . . . . . . . . . . . . . . . . . . . . . 4-9 4-9 4-10 TX Waveform Quality (Rho) Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Waveform Quality (Rho) Acceptance Test . . . . . . . . . . . . . . . . . . . . . . 4-12 4-12 4-12 TX Pilot Time Offset Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pilot Time Offset Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 4-13 4-13 TX Code Domain Power/Noise Floor Acceptance Test . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Code Domain Power/Noise Floor Test . . . . . . . . . . . . . . . . . . . . . . . . . 4-15 4-15 4-15 RX FER Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FER Acceptance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18 4-18 4-19 Generating an ATP Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATP Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20 4-20 4-20 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY Table of Contents – continued Notes 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Automated Acceptance Test Procedure – Introduction 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 CDMA LMF GUI environment and supported test equipment. The operator can choose to save the results of these tests to a report file, from which ATP reports are generated for later printout. Perform the ATP test on out-of-service sectors or sites only. Because all tests are controlled via the CDMA LMF computer using the GPIB interface from the CDMA LMF computer, only recommended test equipment supported by the CDMA LMF can be used. IMPORTANT Before using the LMF, use an editor to view the ”CAVEATS” section in the ”readme.txt” file in the c:\wlmf folder for any applicable information. IMPORTANT The ATP test is to be performed on out-of-service sectors only. DO NOT substitute test equipment with other models 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. The CFE selects the appropriate ATP tests to run to satisfy customer and regulatory requirements for verifying cell site performance. These tests can be run individually or as one of the following groups: S All TX: TX tests verify the performance of the BTS transmit elements. These include the GLI2, MCC, BBX2, BDC, and trunking modules, the LPAs, and passive components including splitters, combiners, bandpass filter(s), and RF cables. S All RX: RX tests verify the performance of the BTS receive elements. These include the MPC (for starter frames), , BBX2, MCC, and GLI2 modules, and the passive components including RX filter (starter frame only), and RF cables. S All TX/RX: Executes all TX and RX tests. S Full Optimization: Executes the TX calibration, downloads BLO, and executes the TX audit before running all TX and RX tests. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-1 Automated Acceptance Test Procedure – Introduction – continued Prerequisites Before attempting to run any ATP tests, all applicable procedures outlined in Chapter 3, Optimization/Calibration, must have been completed successfully (i.e., code load and BLO calibration). NOTE You cannot substitute test equipment with other models not supported by the CDMA LMF. Before attempting to run any ATP tests, ensure the following: S BTS has been optimized and calibrated (see Chapter 3). S LMF is logged into the BTS S CSMs, GLI2s, BBX2s, MCCs and TSU (if the RFDS is installed) have correct code load and data load Primary CSM and GLI2 are INS_ACT MCCs are INS_ACT BBX2s are OOS-RAM BBX2s are calibrated and BLOs are downloaded Test cables are calibrated Test equipment is selected Test equipment is connected for ATP tests Test equipment has been warmed up 60 minutes and calibrated GPIB is on WARNING Before the FER is run, be sure that all LPAs are turned OFF (circuit breakers pulled) or that all transmitter connectors are properly terminated. All transmit connectors must be properly terminated for all ATP tests. Failure to observe these warnings may result in bodily injury or equipment damage. TX/RX Antenna Connections Refer to Figure 1-6 or Figure 1-7 for identification of the transmit and receive antenna connections where measurement are to be taken. Directional couplers for signal sampling by the RFDS, if installed, are integral to the SC4812ET Lite transmit and receive paths in the DRDCs and TRDCs. As a result, all ATP measurement connections are made at the antenna connectors on the RF interface panel. 4-2 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Acceptance Tests – Test Set Up Required Test Equipment The following test equipment is required: S LMF S Power meter (used with HP8921A/600 and Advantest R3465) S Communications test set WARNING Before installing any test equipment directly to any TX OUT connector, verify that there are no CDMA channels keyed. At active sites, have the OMCR/CBSC place the carrier assigned to the LPAs under test OOS. Failure to do so can result in serious personal injury and/or equipment damage. NOTE You must recalibrate the test equipment before using it to perform the TX Acceptance Tests. Acceptance Test Equipment Set Up Follow the steps in Table 4-1 to set up test equipment for all tests. Table 4-1: Set Up Test Equipment – TX Output Verify/Control Tests Step Action If it has not already been done, interface the LMF computer to the BTS (refer to Table 3-6 and Figure 3-10). If it has not already been done, refer to Table 3-7 to start a GUI LMF session and log into the BTS. If it has not already been done, refer to Figure 3-17 or Figure 3-18, as applicable for the test equipment being used, to connect test equipment for acceptance testing. * IMPORTANT CDMA LMF–based measurement commands factor in TX test cable loss between the RFM frame and test equipment. No additional attenuation can be inserted as the additional losses would not be factored in. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP 68P09253A60 PRELIMINARY 4-3 Abbreviated (All–inclusive) Acceptance Tests All–inclusive Tests The all–inclusive acceptance tests are performed from the LMF GUI environment. These tests execute various combinations of individual acceptance tests with a single command. This allows verification of multiple aspects of BTS performance while minimizing time needed for individual test set up and initiation. There are three abbreviated acceptance tests which evaluate different performance aspects of the BTS. This allows the CFE to select testing to meet the specific requirements for individual maintenance and performance verification situations. The following summarizes the coverage of each abbreviated test: S All TX/RX. Performs all transmit and receive ATPs on the selected MCCs and BBX2s. S All TX. Performs complete set of transmit ATPs on the selected MCCs and BBX2s. Testing is the equivalent of performing all of the following individual tests: – TX Mask Test – Rho Test – Pilot Time Offset Test – Code Domain Power Test S All RX. Performs complete receive ATP on the selected MCCs and BBX2s. Testing is the equivalent of performing the following: – FER Test 4-4 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Abbreviated (All–inclusive) Acceptance Tests – continued All TX/RX ATP Test Follow the procedures in Table 4-2 to perform the abbreviated, all–inclusive transmit and receive test. Table 4-2: All TX/RX ATP Test Procedure Step Action Set up the test equipment initially for abbreviated tests per Table 4-1. Select the BBX2s and MCCs to be tested. From the Tests menu, select All TX/RX. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. All TX ATP Test Follow the procedures in Table 4-3 to perform the abbreviated, all–inclusive transmit test. Table 4-3: All TX ATP Test Procedure Step Action Set up the test equipment for abbreviated tests per Table 4-1. Select the BBX2s and MCCs to be tested. From the Tests menu, select All TX. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-5 Abbreviated (All–inclusive) Acceptance Tests – continued Table 4-3: All TX ATP Test Procedure Step Action Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. All RX ATP Test Follow the procedures in Table 4-4 to perform the abbreviated, all–inclusive receive test. Table 4-4: All RX ATP Test Procedure Step Action Set up the test equipment for abbreviated tests per Table 4-1. Select the BBX2s and MCCs to be tested. From the Tests menu, select All RX. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. 4-6 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Individual Acceptance Tests–Introduction Individual Acceptance Tests The following individual ATP tests can be used to evaluate specific aspects of BTS operation against individual performance requirements. All testing is performed using the CDMA LMF GUI environment. TX Testing TX tests verify any given transmit antenna path and output power control. All tests are performed using the external calibrated test set. All measurements are via the appropriate TX OUT connector. TX tests verify TX operation of the entire CDMA Forward Link using all BBX2s assigned to all respective sector/antennas. Each BBX2 is keyed up to generate a CDMA carrier (using both bbx level and bay level offsets) at the CDF file carrier output power level (as specified in the site documentation). RX Testing RX testing verifies any given receive antenna path. All tests are performed using the external calibrated test set to inject a CDMA RF carrier with all zero longcode at the specified RX frequency via the appropriate RX IN connector. RX tests verify RX operation of the entire CDMA Reverse Link using all equipped MCCs assigned to all respective sector/antennas. Individual Tests Spectral Purity TX Mask This test verifies that the transmitted CDMA carrier waveform generated on each sector meets the transmit spectral mask specification (as defined in IS–97) 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 IS–97. Rho represents the correlation between the actual and perfect CDMA modulation spectrums. 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, Walsh code 0). Code Domain Power/Noise Floor This test verifies the code domain power levels, which have been set for all ODD numbered Walsh channels, using the OCNS command. This is 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-7 Individual Acceptance Tests–Introduction – continued done by verifying that the ratio of PILOT divided by OCNS is equal to 10.2 + 2 dB, and, that the noise floor of all EVEN numbered “OFF” Walsh channels measures < –27 dB (with respect to total CDMA channel power). BTS Frame Error Rate This test verifies the BTS receive Frame Error Rate (FER) on all Traffic Channel elements currently configured on all equipped MCCs (fullrate at one percent FER) at an RF input level of –119 dBm on the main RX antenna paths using all equipped MCCs and BBX2s at the site. The diversity RX antenna paths are also tested using the lowest equipped MCC/CE ONLY. NOTE There are no pass/fail criteria associated with FER readings taken at level below –119 dBm, other than to verify that the FER measurement reflects changes in the RX input signal level. 4-8 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY TX Spectral Purity Transmit Mask Acceptance Test Background 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 connector. Pilot gain will be set to 541 for each antenna, and the forward link will be disabled for all Traffic CHannel (TCH) elements from the MCCs. The BBX2 will be keyed up using both bbxlvl and bay level offsets, to generate a CDMA carrier (with pilot channel element only). RF output will be set at 40 dBm as measured at the appropriate TX output. The calibrated communications test set will measure and return the attenuation level of all spurious and IM products with respect to the mean power of the CDMA channel measured in a 1.23 MHz bandwidth, in dB, verifying that results meet system tolerances at the following test points (see also Figure 4-1): S For 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 S For 1.9 GHz: – At least –45 dB @ + 900 kHz from center frequency – At least –45 dB @ – 900 kHz from center frequency The BBX2 will then dekey, and if selected, the redundant BBX2 will be assigned to the current TX antenna path under test. The test will then be repeated. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-9 TX Spectral Purity Transmit Mask Acceptance Test – continued Spectral Purity TX Mask Acceptance Test Follow the steps in Table 4-5 to verify the transmit spectral mask specification on all TX antenna paths using all BBXs equipped at the BTS. Table 4-5: Test Spectral Purity Transmit Mask Step Action Set up the test equipment for TX acceptance tests per Table 4-1. Select the BBX2s to be tested. From the Tests menu, select TX Mask. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. 4-10 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY TX Spectral Purity Transmit Mask Acceptance Test – continued Figure 4-1: TX Mask Verification Spectrum Analyzer Display Mean CDMA Bandwidth Power Reference .5 MHz Span/Div Ampl 10 dB/Div Center Frequency Reference Attenuation level of all spurious and IM products with respect to the mean power of the CDMA channel – 1980 kHz + 1980 kHz – 900 kHz – 750 kHz 08/01/2001 + 900 kHz +750 kHz 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-11 TX Waveform Quality (Rho) Acceptance Test Background 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 connector. Pilot gain will be set to 262 for each antenna, and all TCH elements from the MCCs will be forward link disabled. The BBX2 will be keyed up using both bbxlvl and bay level offsets to generate a CDMA carrier (with pilot channel element only, Walsh code 0). RF output power is set at 40 dBm as measured at the appropriate TX output. The calibrated communications test set will measure and return the pilot channel element digital waveform quality (rho) percentage, verifying that the result meets system tolerances: Waveform quality (Rho) should be > 0.912. The BBX2 will then dekey, and if selected, the redundant BBX2 will be assigned to the current TX antenna path under test. The test will then be repeated. Waveform Quality (Rho) Acceptance Test Follow the steps in Table 4-6 to verify the pilot channel element waveform quality (rho) on the specified TX antenna paths using BBXs equipped at the BTS. Table 4-6: Test Waveform Quality (Rho) Step Action Set up the test equipment for TX acceptance tests per Table 4-1. Select the BBX2s to be tested. From the Tests menu, select Rho. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. 4-12 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY TX Pilot Time Offset Acceptance Test Background 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 will be performed using the external calibrated test set controlled by the same command. All measurements will be via the TX OUT connector. The pilot gain will be set to 262 for each antenna and all TCH elements from the MCCs will be forward link disabled. The BBX2 will be keyed up using both bbxlvl and bay level offsets to generate a CDMA carrier (with pilot channel element only, Walsh code 0). TX power output is set at 40 dBm as measured at the TX output. The calibrated communications test set will measure and return the Pilot Time Offset in ms, verifying that results meet system tolerances: Pilot Time Offset should be within 3 ms of the target PT Offset (zero ms). The BBX2 will then dekey, and if selected, the redundant BBX2 will be assigned to the current TX antenna path under test. The test will then be repeated. NOTE This test also executes and returns the TX Frequency and TX Waveform Quality (rho) ATP tests, however, only Pilot Time Offset results are written to the ATP test report. Pilot Time Offset Acceptance Test Follow the steps in Table 4-7 to verify the Pilot Time Offset on the specified TX antenna paths using BBXs and BDCs equipped at the BTS. Table 4-7: Test Pilot Time Offset Step Action Set up the test equipment for TX acceptance tests per Table 4-1. Select the BBX2s to be tested. From the Tests menu, select Pilot Time Offset. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-13 TX Pilot Time Offset Acceptance Tests – continued Table 4-7: Test Pilot Time Offset Step Action Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. 4-14 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY TX Code Domain Power/Noise Floor Acceptance Test Background This test verifies the Code Domain Power and Noise Floor 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 connector. Pilot gain will be set to 262 for each antenna and all equipped MCCs will be configured to supply all odd–numbered Walsh code Traffic channel elements by enabling Orthagonal Channel Noise Source (OCNS) on all odd MCC/CEs, (maximum 32 full rate channels with an OCNS gain of 81). All even–numbered Walsh code Traffic channel elements will not have OCNS enabled, and are considered “OFF”. All equipped MCCs will be forward–link enabled for the antenna/sector under test. The BBX2 will be keyed up using both bbxlvl and bay level offsets, to generate a CDMA carrier consisting of pilot and OCNS channels. RF output power is set at 40 dBm as measured at the appropriate TX output. The calibrated communications test set will measure and return the channel element power (dB) of all specified Walsh channels within the CDMA spectrum. Additional calculations will be performed to verify the following parameters are met (Figure 4-2): S Traffic channel element power level will be verified by calculating the ratio of PILOT power to OCNS gain of all traffic channels (root sum of the square (RSS) of each OCNS gain divided by the Pilot power). This value should be 10.2 dB + 2.0 dB. S Noise floor (unassigned “OFF” even numbered Walsh channels) are verified to be < –27 dB (with respect to total CDMA channel power). The BBX2 will then dekey, and if selected, the redundant BBX2 will be assigned to the current TX antenna path under test. The test will then be repeated. Upon completion of the test, OCNS channels will be disabled on the specified MCC/CEs. Code Domain Power/Noise Floor Test Follow the steps in Table 4-8 to verify the Code Domain Power/Noise floor of each BBX carrier keyed up at a specific frequency. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-15 TX Code Domain Power/Noise Floor Acceptance Test – continued Table 4-8: Test Code Domain Power/Noise Floor Step Action Set up the test equipment for TX acceptance tests per Table 4-1. Select the BBX2s and MCCs to be tested. From the Tests menu, select TX Mask. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. NOTE If Dismiss is used, the test results will not be saved in the test report file. 4-16 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY TX Code Domain Power/Noise Floor Acceptance Test – continued Figure 4-2: Code Domain Analyzer CD Power/Noise Floor Display Examples Pilot Channel PILOT LEVEL MAX OCNS CHANNEL 8.2 dB 12.2 dB MAX OCNS SPEC. Active channels MIN OCNS SPEC. MIN OCNS CHANNEL MAX NOISE FLOOR MAXIMUM NOISE FLOOR: < –27 dB SPEC. Inactive channels Walsh 0 1 2 3 4 5 6 7 ... 64 Code Domain Power/Noise Floor (OCNS Pass) Example Pilot Channel PILOT LEVEL FAILURE – EXCEEDS MAX OCNS SPEC. 8.2 dB 12.2 dB MAX OCNS SPEC. Active channels FAILURE – DOES NOT MEET MIN OCNS SPEC. MIN OCNS SPEC. FAILURE – EXCEEDS MAX NOISE FLOOR SPEC. MAXIMUM NOISE FLOOR: < –27 dB Inactive channels Walsh 0 1 2 3 4 5 6 7 ... 64 Code Domain Power/Noise Floor (OCNS Failure) Example 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-17 RX FER Acceptance Test Background This test verifies the BTS Frame Erasure Rate (FER) on all TCHs currently configured on all equipped MCCs (fullrate at 1% FER) at –119 dBm on the main RX antenna paths. The test is performed on all diversity RX antenna path using only the lowest equipped MCC/CE. All tests are performed using the external calibrated test set as the signal source controlled by the same command. All measurements are via the LMF. Pilot gain will be set to 262 for each TX antenna, and the forward link for all TCH elements from the MCCs will be disabled. The BBX2 will be keyed up using only bbxlvl level offsets, to generate a CDMA carrier (with pilot channel element only). TX power output is set at +10 dBm. (The BBX must be keyed in order to enable the RX receive circuitry.) The LMF will prompt the MCC/CE under test to measure all–zero longcode and provide the Frame Erasure Rate (FER) report on the selected active MCC on the Reverse Link for both the main and diversity RX antenna paths, verifying results meet the following specification: FER returned less than 1% and Total Frames measured is 1500. The BBX2 will then dekey, and if selected, the redundant BBX2 will be assigned to the current RX antenna paths under test. The test will then be repeated. 4-18 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY RX FER Acceptance Test – continued FER Acceptance Test Follow the steps in Table 4-9 to verify the FER on all RX antenna paths using all BBXs equipped at the BTS. Table 4-9: Test FER Step Action Set up the test equipment for RX acceptance tests per Table 4-1. Select the BBX2s and MCCs to be tested. From the Tests menu, select FER. Select the appropriate carrier(s) (carrier-bts#-sector#-carrier#) displayed in the Channels/Carrier pick list. NOTE To select multiple items, hold down the Shift or Ctrl key while making the selections. Enter the appropriate channel number in the Carrier n Channels box. From the RX Branch pick list, select the branch/branches to be tested. Select the desired rate from the Rate Set pick list (1 = 9600, 2 = 14400). Click OK. The status report window is displayed and a Directions pop-up is displayed. Follow the cable connection directions as they are displayed. The test results are displayed in the status report window. Click Save Results or Dismiss. 10 NOTE If Dismiss is used, the test results will not be saved in the test report file. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 4-19 Generating an ATP Report Background Each time an ATP test is run, an ATP report is updated and must be saved using the Save Results button to close the status report window. The ATP report will not be updated if the status reports window is closed using the Dismiss button. ATP Report A separate report is created for each BTS and includes the following for each test: Test name PASS or FAIL Description information (if applicable) BBX number Channel number Carrier number Sector number Upper test limit Lower test limit Test result Time stamp Details/Warning information (if applicable) Follow the procedures in the Table 4-10 to view and create a printable file for the ATP report. Table 4-10: Generating an ATP Report Step Action Click on the Login tab (if not in the forefront). Select the desired BTS from the available Base Station pick list. Click on the Report button. Click on a column heading to start the report. If not desiring a printable file copy, click on the Dismiss button. If requiring a printable file copy, select the desired file, type in the pick list and click on the Save button. 4-20 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Chapter 5: Leaving the Site Table of Contents 08/01/2001 Updating Calibration Data Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Updating CBSC Calibration Data Files . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-1 Prepare to Leave the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing External Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . Reset All Devices and Initialize Site Remotely . . . . . . . . . . . . . . . . . . . Bringing Modules into Service with the CDMA LMF . . . . . . . . . . . . . Terminating LMF Session/Removing Terminal . . . . . . . . . . . . . . . . . . Connecting BTS T1/E1 Spans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before Leaving the site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5-3 5-3 5-3 5-4 5-5 5-5 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY Table of Contents – continued Notes 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Updating Calibration Data Files Updating CBSC Calibration Data Files After completing the TX calibration and audit, updated CAL file information must be moved from the LMF Windows environment back to the CBSC, a Unix environment. The following procedures detail moving files from one environment to the other. Copying CAL files from LMF to a Disk Follow the procedures in Table 5-1 to copy the CAL files from a CDMA LMF computer to a 3.5 diskette. Table 5-1: Copying CAL Files to a Diskette Step Action With Windows running on the CDMA LMF computer, insert a disk into Drive A:. Launch the Windows Explorer Program from your Programs menu list. Select the applicable wlmf/cdma/bts–# folder. Drag the bts–#.cal file to Drive A. Repeat Steps 3 and 4, as required, for other bts–# folders. Copying CAL Files from Diskette to the CBSC Follow the procedures in Table 5-2 to copy CAL files from a diskette to the CBSC. Table 5-2: Copying CAL Files from Diskette to the CBSC Step Action Log in to the CBSC on the OMC–R Unix workstation using your account name and password. Place your diskette containing calibration file(s) in the workstation diskette drive. Type in eject –q and press the Enter key. Type in mount and press the Enter key. NOTE S Check to see that the message “floppy/no_name” is displayed on the last line. S If the eject command was previously entered, floppy/no_name will be appended with a number. Use the explicit floppy/no_name reference displayed. Type in cd /floppy/no_name and press the Enter key. Type in ls –lia and press the Enter key. Verify that the bts–#.cal file is on the diskette. Type in cd and press the Enter key. Type in pwd and press the Enter key. Verify you are in your home directory (/home/ ). . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 5-1 Back Up Calibration Data Files – continued Table 5-2: Copying CAL Files from Diskette to the CBSC Step Action With Solaris versions of Unix, create a Unix–formatted version of the bts–#.cal file in your home directory by entering the following command: dos2unix /floppy/no_name/bts–#.cal bts–#.cal and press the Enter key (where # is BTS number). NOTE Other versions of Unix do not support the dos2unix command. In these cases, use the Unix cp (copy) command. The copied files will contain DOS line feed characters which must be edited out with a Unix text editor. 10 Type in ls –l *.cal and press the Enter key. Verify the cal files have been copied. 11 Type in eject and press the Enter key. 12 Remove the diskette from the workstation. 5-2 1X SCt4812ET Lite BTS Optimization/ATP 68P09253A60 08/01/2001 PRELIMINARY Prepare to Leave the Site Removing External Test Equipment Perform the procedure in Table 5-3 to disconnect the test equipment and configure the BTS for active service. Table 5-3: Remove External Test Equipment Step Action Disconnect all external test equipment from all TX and RX connectors at the rear of the frame. Reconnect and visually inspect all TX and RX antenna feed lines at the frame RF interface panel. ! CAUTION Verify that all sector antenna feed lines are connected to the correct ports on the frame. Crossed antenna cables will cause system degradation of call processing. Reset All Devices and Initialize Site Remotely Generally, devices in the BTS should not be left with data and code loaded from the CDMA LMF. The configuration data and code loads used for normal operation could be different from those stored in the CDMA LMF files. By resetting all devices, the required data and code can be loaded from the CBSC when spans are again active. To reset all devices and have the OMCR/CBSC bring up the site remotely, perform the procedure in Table 5-4. Table 5-4: Reset BTS Devices and Remote Site Initialization Step Action Terminate the CDMA LMF session by following the procedures in Table 5-6. NOTE In the following step, performing Table 2-6 DC voltage measurements other than those using the MAP VOLT and AMP indicators is not necessary if DC power system components have not been replaced during the optimization and/or ATP process. Cycle BTS power off, as specified in Table 2-9, and on, as specified in Table 2-5, Table 2-6, and step 1 of Table 2-7, respectively. Reconnect spans by following the procedure in Table 5-7. Notify the OMCR/CBSC to take control of the site and download code and data to the BTS. Verify the CBSC can communicate with the GLIs. Bringing Modules into Service with the CDMA LMF IMPORTANT 08/01/2001 Whenever possible, have the CBSC/MM bring up the site and enable all devices at the BTS. 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 5-3 Prepare to Leave the Site – continued If there is a reason code and/or data should or could not be loaded remotely from the CBSC, follow the steps outlined in Table 5-5 as required to bring BTS processor modules from OOS to INS state. Table 5-5: Bring Modules into Service Step Action In the CDMA LMF GUI environment, select the device(s) you wish to enable. NOTE S The MGLI, CSM, and applicable BDC must be INS before an MCC can be enabled to INS. S Processors which must be enabled and the order of enabling are as follows: – – – – MGLI GLI CSMs MCCs Click on Device from the menu bar. Click on Enable from the Device menu. A status report window is displayed. NOTE If a BBX is selected, a transceiver parameters window is displayed to collect keying information. Do not enable the BBX. Click Cancel to close the transceiver parameters window, if applicable. Click OK to close the status report window. The selected devices that successfully change to INS change color to green. Terminating LMF Session/Removing Terminal Perform the procedure in Table 5-6 as required to terminate the LMF GUI session and remove the CDMA LMF computer. Table 5-6: Remove LMF Step Action ! CAUTION Do not power down the CDMA LMF terminal without performing the procedure below. Corrupted/lost data files may result. Log out of all BTS sessions and exit CDMA LMF by clicking on the File selection in the menu bar and selecting Exit from the File menu list. Click Yes in the Confirm Logout pop–up message which appears. In the Windows Task Bar, click Start and select Shutdown. Click Yes when the Shut Down Windows message appears Wait for the system to shut down and the screen to go blank. . . . continued on next page 5-4 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Prepare to Leave the Site – continued Table 5-6: Remove LMF Step Action Disconnect the CDMA LMF terminal Ethernet port from the BTS frame. Disconnect the CDMA LMF terminal serial port, the RS–232–to–GPIB interface box, and the GPIB cables as required for equipment transport. Connecting BTS T1/E1 Spans Before leaving the site, connect any T1 or E1 span connectors removed previously to allow the LMF to control the BTS. Refer to Table 5-7 and Figure 3-7. Table 5-7: Connect T1 or E1 Spans Step Action Re–connect any disconnected span connectors to the Span I/O A and B boards. If equipped, ensure the CSU is powered on. Verify span status, ensuring the OMC–R/CBSC can communicate with the BTS. Before Leaving the site Be sure all requirements listed in Table 5-8 are completed before leaving the site. Table 5-8: Check Before Leaving the Site Step Action All battery circuit breakers (for occupied shelves) are ON (pushed in). Both heat exchanger circuit breakers on the DC PDA are set to ON (pushed in), and the heat exchanger blowers are running. The External Blower Assembly (EBA) power cable is connected, and the EBA is running. The MAP power switch is set to ON, and the POWER (green) LED is lighted. The BATT TEST switch on the MAP is set to OFF, and the BATT. TEST (amber) LED is not lighted. No alarm conditions are being reported to the CBSC with all frame doors closed. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 5-5 Prepare to Leave the Site – continued Notes 5-6 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Chapter 6: Basic Troubleshooting Table of Contents 08/01/2001 Basic Troubleshooting Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6-1 Troubleshooting: Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannot Log into Cell-Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannot Communicate with Power Meter . . . . . . . . . . . . . . . . . . . . . . . Cannot Communicate with Communications Analyzer . . . . . . . . . . . . 6-2 6-2 6-5 6-6 Troubleshooting: Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannot Download DATA to Any Device (Card) . . . . . . . . . . . . . . . . . . Cannot ENABLE Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LPA Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 6-7 6-8 6-9 Troubleshooting: Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bay Level Offset Calibration Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . Calibration Audit Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 6-10 6-11 Basic Troubleshooting – RF Path Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . If Every Test Fails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Verify BLO Checkbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . If Faults Are Isolated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault Isolation Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flowchart Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TX Power Output Fault Isolation Flowchart . . . . . . . . . . . . . . . . . . . . . 6-12 6-12 6-12 6-13 6-13 6-13 6-13 6-14 Troubleshooting: Transmit ATP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cannot Perform Txmask Measurement . . . . . . . . . . . . . . . . . . . . . . . . . Cannot Perform Rho or Pilot Time Offset Measurement . . . . . . . . . . . Cannot Perform Code Domain Power and Noise Floor Measurement . Cannot Perform Carrier Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15 6-15 6-15 6-16 6-16 Troubleshooting: Receive ATP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multi–FER Test Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17 6-17 Troubleshooting: CSM Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intermittent 19.6608 MHz Reference Clock / GPS Receiver Operation No GPS Reference Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Checksum Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GPS Bad RX Message Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSM Reference Source Configuration Error . . . . . . . . . . . . . . . . . . . . . 6-18 6-18 6-18 6-18 6-18 6-18 6-19 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY Table of Contents – continued Takes Too Long for CSM to Come INS . . . . . . . . . . . . . . . . . . . . . . . . 6-19 SCCP Backplane Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connector Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SCCP Backplane Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . Digital Control Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Power Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TX and RX Signal Routing Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20 6-20 6-20 6-21 6-21 6-24 6-25 RFDS – Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All tests fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All RX and TX paths fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All tests fail on a single antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26 6-26 6-26 6-26 6-26 Module Front Panel LED Indicators and Connectors . . . . . . . . . . . . . . . . . . . . . Module Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LED Status Combinations for All Modules (except GLI2, CSM, BBX2, MCC24, MCC8E) . . . . . . . . . . . . . . . . . . DC/DC Converter LED Status Combinations . . . . . . . . . . . . . . . . . . . . CSM LED Status Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GLI2 LED Status Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GLI2 Pushbuttons and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . BBX2 LED Status Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MCC24 LED Status Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . LPA Shelf LED Status Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28 6-28 6-28 6-28 6-29 6-31 6-32 6-33 6-33 6-34 Basic Troubleshooting – Span Control Link . . . . . . . . . . . . . . . . . . . . . . . . . . . Span Problems (No Control Link) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set BTS Site Span Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35 6-35 6-36 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Basic Troubleshooting Overview Overview The information in this chapter addresses some of the scenarios likely to be encountered by Customer Field Engineering (CFE) team members. This troubleshooting guide was created as an interim reference document for use in the field. It provides “what to do if” basic troubleshooting suggestions when the BTS equipment does not perform per the procedure documented in the manual. Comments are consolidated from inputs provided by CFEs in the field and information gained from experience in Motorola labs and classrooms. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-1 Troubleshooting: Installation Cannot Log into Cell-Site Table 6-1: Login Failure Troubleshooting Procedures n Step Action If MGLI2 LED is solid RED, it implies a hardware failure. Reset MGLI2 by re-seating it. If this persists, install RGLI2 card in MGLI2 slot and retry. A Red LED may also indicate no termination on an external LAN connector (power entry compartment at rear of frame). Verify that the span line is disconnected at the Span I/O card. If the span is still connected, verify the CBSC has disabled the BTS. Try ‘ping’ing the MGLI2. Verify the LMF is connected to the primary LAN (LAN A) at the LAN shelf below the SCCP cage. If LAN A is not the active LAN, force a LAN switch to LAN A by following the procedure in Table 6-2. Verify the LMF was configured properly. If a Xircom parallel BNC LAN interface is being used, verify the BTS-LMF cable is RG-58 (flexible black cable of less than 2.5 feet length). Verify the external LAN connectors are properly terminated (power entry compartment at rear of frame). Verify a T-adapter is not used on LMF computer side connector when connected to the primary LAN at the LAN shelf. Try connecting to the Ethernet Out port in the power entry compartment (rear of frame). Use a TRB–to–BNC (triax–to–coax) adapter at the LAN connector for this connection. 10 Re-boot the CDMA LMF and retry. 11 Re-seat the MGLI2 and retry. 12 Verify GLI2 IP addresses are configured properly by following the procedure in Table 6-3. Table 6-2: Force Ethernet LAN A to Active State as Primary LAN n Step Action If LAN A is not the active LAN, make certain all external LAN connectors are terminated with 50Ω loads or cabled to another frame. If it has not already been done, connect the LMF computer to the stand–alone or starter frame, as applicable (Table 3-6). If it has not already been done, start a GUI LMF session and log into the BTS on the active LAN (Table 3-7). . . . continued on next page 6-2 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Installation – continued Table 6-2: Force Ethernet LAN A to Active State as Primary LAN n Step Remove the 50Ω termination from the LAN B IN connector in the power entry compartment at the rear of the stand–alone or starter frame. The CDMA LMF session will become inactive. Disconnect the LMF computer from the LAN shelf LAN B connector and connect it to the LAN A connector. If the LAN was successfully forced to an active state (the cards in any cage can be selected and statused), proceed to step 13. With the 50Ω termination still removed from the LAN B IN connector, remove the 50Ω termination from LAN B OUT connector. If more than one frame is connected to the LAN, remove the termination from the last frame in the chain. If the LAN was successfully forced to an active state (the cards in any cage can be selected and statused), proceed to step 13. With the 50Ω terminations still removed from LAN B, unseat each GLI card in each frame connected to the LAN, until all are disconnected from the shelf backplanes. 10 Reseat each GLI card until all are reconnected. 11 Allow the GLIs to power up, and attempt to select and status cards in the CCP shelves. If LAN A is active, proceed to step 13. 12 If LAN A is still not active, troubleshoot or continue troubleshooting following the procedures in Table 6-1. 13 08/01/2001 Action Replace the 50Ω terminations removed from the LAN B IN and OUT connectors. PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 6-3 Troubleshooting: Installation – continued Table 6-3: GLI IP Address Setting n Step Action If it has not previously been done, establish an MMI communication session with the GLI card as described in Table 3-11. Enter the following command to display the IP address and subnet mask settings for the card: config lg0 current A response similar to the following will be displayed: GLI2>config lg0 current lg0: IP address is set to DEFAULT (configured based on card location) lg0: netmask is set to DEFAULT (255.255.255.128) If the IP address setting response shows an IP address rather than “Default (configured based on card location),” enter the following: config lg0 ip default A response similar to the following will be displayed: GLI2>config lg0 ip default _param_config_lg0_ip(): param_delete(): 0x00050001 lg0: ip address set to DEFAULT If the GLI subnet mask setting does not display as “DEFAULT (255.255.255.128),” set it to default by entering the following command: config lg0 netmask default A response similar to the following will be displayed: GLI2>config lg0 netmask default _param_config_lg0_netmask(): param_delete(): 0x00050001 lg0: netmask set to DEFAULT . . . continued on next page 6-4 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Installation – continued Table 6-3: GLI IP Address Setting n Step Action Set the GLI route default to default by entering the following command: config route default default A response similar to the following will be displayed: GLI2>config route default default _esh_config_route_default(): param_delete(): 0x00050001 route: default gateway set to DEFAULT NOTE Changes to the settings will not take effect unless the GLI is reset. When changes are completed, close the MMI session, and reset the GLI card. Once the GLI is reset, re–establish MMI communication with it and issue the following command to confirm its IP address and subnet mask settings: config lg0 current A response similar to the following will be displayed: GLI2>config lg0 current lg0: IP address is set to DEFAULT (configured based on card location) lg0: netmask is set to DEFAULT (255.255.255.128) Repeat steps 1 through 7 for all remaining GLI2s, including those in any additional, inter–connected frames. Cannot Communicate with Power Meter Table 6-4: Troubleshooting a Power Meter Communication Failure n Step 08/01/2001 Action Verify Power Meter is connected to LMF with GPIB adapter. Verify cable setup as specified in Chapter 3. Verify the GPIB address of the Power Meter is set to 13. Refer to Test Equipment setup section of Chapter 3 for details. . . . continued on next page PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 6-5 Troubleshooting: Installation – continued Table 6-4: Troubleshooting a Power Meter Communication Failure n Step Action Verify that Com1 port is not used by another application. Verify that the communications analyzer is in Talk&Listen mode, not Control mode. Cannot Communicate with Communications Analyzer Table 6-5: Troubleshooting a Communications Analyzer Communication Failure n Step 6-6 Action Verify analyzer is connected to LMF with GPIB adapter. Verify cable setup. Verify the GPIB address is set to 18. Verify the GPIB adapter DIP switch settings are correct. Refer to Test Equipment setup section for details. Verify the GPIB adapter is not locked up. Under normal conditions, only 2 green LEDs must be ‘ON’ (Power and Ready). If any other LED is continuously ‘ON’, then power-cycle the GPIB Box and retry. If a Hyperterm window is open for MMI, close it. Verify the LMF GPIB address is set to 18. Verify the analyzer is in Talk&Listen mode, not Control mode. 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Download Table 6-6: Troubleshooting Code Download Failure n Step Action Verify T1 or E1 span is disconnected from the BTS at CSU. Verify LMF can communicate with the BTS device using the Status function. Communication to MGLI2 must first be established before trying to talk to any other BTS device. MGLI2 must be INS_ACT state (green). Verify the card is physically present in the cage and powered-up. If card LED is solid RED, it implies hardware failure. Reset card by re-seating it. If this persists, replace card from another slot & retry. NOTE The card can only be replaced by a card of the same type. Re-seat card and try again. If BBX2 reports a failure message and is OOS_RAM, the code load was OK. Status it to verify the load. If the download portion completes and the reset portion fails, reset the device by clicking on the device and selecting DEVICE > RESET. Cannot Download DATA to Any Device (Card) Table 6-7: Troubleshooting Data Download Failure n Step 08/01/2001 Action Re-seat card and repeat code and data load procedure. Verify the ROM and RAM code loads are of the same release by statusing the card. Refer to Chapter 3, “Download the BTS” for more information. PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 6-7 Troubleshooting: Download – continued Cannot ENABLE Device Before a device can be enabled (placed in-service), it must be in the OOS_RAM state (yellow on the LMF) with data downloaded to the device. The color of the device on the LMF changes to green, once it is enabled. The three states that devices can be displayed: S Enabled (green, INS) S Disabled (yellow, OOS_RAM) S Reset (blue, OOS_ROM) Table 6-8: Troubleshooting Device Enable (INS) Failure n Step Action Re-seat card and repeat code and data load procedure. If CSM cannot be enabled, verify the CDF file has correct latitude and longitude data for cell site location and GPS sync. Ensure primary CSM is in INS_ACT state. NOTE MCCs will not go INS without the CSM being INS. 6-8 Verify 19.6608 MHz CSM clock is present; MCCs will not go INS without it. BBXs should not be enabled for ATP tests. If MCCs give “invalid or no system time,” verify the CSM is enabled. 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Download – continued LPA Errors Table 6-9: LPA Errors n Step Action If LPAs continue to give alarms, even after cycling power at the circuit breakers, then connect an MMI cable to the LPA and set up a HyperTerminal connection. Enter ALARMS in the Hyperterminal window. The resulting hyperTerminal display may provide an indication of the problem. (Call Field Support for further assistance.) 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP 6-9 Troubleshooting: Calibration Bay Level Offset Calibration Failure Table 6-10: Troubleshooting BLO Calibration Failure n Step Verify the Power Meter is configured correctly (see the test equipment setup section) and connection is made to the proper TX port. Verify the parameters in the bts–#.cdf file are set correctly for the following bands: For 1900 MHz: Bandclass=1; Freq_Band=16 For 800 MHz: Bandclass=0; Freq_Band=8 Verify that no LPA in the sector is in alarm state (flashing red LED). Reset the LPA by pulling the circuit breaker, and, after 5 seconds, pushing back in. Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the power sensor. Verify GPIB adapter is not locked up. Under normal conditions, only 2 green LEDs must be ‘ON’ (Power and Ready). If any other LED is continuously ‘ON’, power-cycle (turn power off and on) the GPIB Box and retry. Verify the power sensor is functioning properly by checking it with the 1–mW (0 dBm) Power Ref signal. If communication between the LMF and Power Meter is working, the Meter display will show “RES :’’ Verify the combiner frequency is the same as the test freq/chan. 6-10 Action 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Calibration – continued Calibration Audit Failure Table 6-11: Troubleshooting Calibration Audit Failure n Step Action Verify Power Meter is configured correctly (refer to the test equipment setup section). Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors from the power sensor. Verify that no LPA is in alarm state (rapidly flashing red LED). Reset the LPA by pulling the circuit breaker, and, after 5 seconds, pushing back in. Verify the power sensor is functioning properly by checking it with the 1 mW (0 dBm) Power Ref signal. After calibration, the BLO data must be re-loaded to the BBXs before auditing. Click on the BBX(s) and select Download Code > Download Data>Enable. Re-try the audit. Verify GPIB adapter is not locked up. Under normal conditions, only 2 green LEDs must be ‘ON’ (Power and Ready). If any other LED is continuously ‘ON’, power-cycle (turn power off and on) the GPIB Box and retry. 08/01/2001 PRELIMINARY 6-11 1X SCt4812ET Lite BTS Optimization/ATP Basic Troubleshooting – RF Path Fault Isolation Overview The optimization (RF path characterization or calibration) and post-calibration (audit) procedures measure and limit-check the BTS reported transmit and receive levels of the path from each BBX2 to the back of the frame. When a fault is detected, it is specific to a receive or transmit path. The troubleshooting process in this section determines the most probable cause of the fault. As the calibration and audit tests are performed, results are displayed in the LMF test status report window. When faults are encountered, the test procedure in progress continues running and displaying any further faults. If it appears that there are major faults, the test can be aborted. The test results can be saved to a bts–<#>.rpt file in the wlmf\cdma\bts–<#> folder. To do this, close the test status report window using the Save Results button. IMPORTANT Closing the test status report window with the Dismiss button will delete the test results without saving them. If a test is re–run or a new calibration, audit, or test is run and the results are saved, the previous test results in the bts–<#>.rpt file are overwritten. To prevent losing previous test results in the bts–<#>.rpt file, refer to the procedure in Table 4-10 before performing further testing with the LMF. If there are major faults, recheck the test equipment attachments for errors. If none are found, close the test status report window using the Save Results button, and save the contents of the resulting bts–<#>.rpt file as described in Table 4-10. Also, note other specifics about the failure, and proceed with the fault isolation procedure. If Every Test Fails Check the calibration equipment for proper operation by manually setting the signal generator output attenuator to the lowest output power setting. Connect the output port to the spectrum analyzer RF input port. Set the signal generator output attenuator to –90 dBm, and switch on the RF output. Verify that the spectrum analyzer can receive the signal, indicate the correct signal strength (accounting for the cable insertion loss), and indicate the approximate frequency. 6-12 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Basic Troubleshooting – RF Path Fault Isolation – continued Verify BLO Checkbox When performing a calibration with the TX Calibration... or All Cal/Audit... functions, the Verify BLO checkbox should normally be checked. When a calibration fails, determine if any items such as directional couplers or combiners have been added to the TX path. If additional items have been installed in the path, try re–running the calibration with Verify BLO unchecked. If calibration still does not pass, refer to the following paragraphs and use the TX output fault isolation flowchart to identify the most probable cause of the failure. If Faults Are Isolated If the fault reports are isolated between successful path checks, the root cause of the faults most likely lies with one or more of the Field Replaceable Unit (FRU) modules. If more than one failure was reported, look for a common denominator in the data. For example, if any TX test fails on one sector only, the BBX2 assigned to that sector (Table 1-5) is a likely cause. Also, look at the severity of the failure. If the path loss is just marginally out of the relaxed specification limit during the post-calibration TX audit, suspect excessive cable loss. If limits are missed by a wide margin, suspect mis–wired cables or total device failure. Use the TX output fault isolation flowchart in Figure 6-1 to identify the strongest possible cause for a failed TX test. Fault Isolation Flowchart The flowchart covers the transmit path. Transmit paths usually fail the lower test limit, indicating excessive loss in some component in the BTS site or mis–wiring. A failure of an upper limit usually indicates a problem with the test setup or external equipment. Before replacing a suspected FRU, always repeat and verify the test results to rule out a transient condition. If a BBX2 fails an upper limit in the post–calibration audit procedure, re–calibrate and verify the out–of–tolerance condition for that BBX2 and/or sector before replacement. Flowchart Prerequisites Before entering the fault isolation sequence outlined in the flowchart, be sure the following have been completed: S GLIs, MCCs, and BBXs have been downloaded with the correct ROM code, RAM code, and data (Table 3-13, Table 3-14, and Table 3-15). S MGLI, CSMs, and MCCs are enabled (Table 3-14, Table 3-17, and Table 3-18, respectively) S Be sure the LED on the correct CCD card is solid green. S Be sure no alarms are being reported by opening an LMF alarm window as outlined in Table 3-47. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-13 Basic Troubleshooting – RF Path Fault Isolation – continued TX Power Output Fault Isolation Flowchart Figure 6-1: TX Output Fault Isolation Flowchart Start TX Power Out of Limits Did TX Output fail the High or Low limit? High limit failure. Does redundant BBX have the same problem on the same sector? No Likely Cause: Yes Low limit failure. Does any other sector have the same problem? Yes Likely Cause: External Power Measurement Equipment and/or Set–up. Also check: Switch card External Attenuators & Pads, Check Site Documentation. Likely Cause: CIO card Carrier trunking module Also check: CIO–trunking module cabling TX filter/combiner cabling TX DRDC/TRDC cabling Likely Cause: BBX card Loose connections on CIO–trunking module cabling, TX filter/combiner cabling, or TX DRDC/TRDC cabling Also check: CIO card Carrier trunking module Likely Cause: Crossed TX cabling to include: – CIO–trunking module, – Trunking module–filter/combiner, – Filter/combiner–DRDC/TRDC Carrier LPAs Also check: Carrier trunking module CIO card. Likely Cause: CIO card not fully seated External Power Measurement Equipment and/or Set–up Crossed TX cabling to include: – CIO–trunking module, – Trunking module–filter/combiner, – Filter/combiner–DRDC/TRDC No If equipped, does a BBX on the same carrier but for a different sector pass? Yes, it passes. No, next BBX on same carrier fails on different sector. If equipped, does a BBX on a different carrier but for the same sector pass? Yes, it passes. No, everything fails 6-14 BBX card Attempt re–calibration before replacement. 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Troubleshooting: Transmit ATP Cannot Perform Txmask Measurement Table 6-12: Troubleshooting TX Mask Measurement Failure n Step Action Verify that TX audit passes for the BBX2(s). If performing manual measurement, verify analyzer setup. Verify that no LPA in the sector is in alarm state (flashing red LED). Re-set the LPA by pulling the circuit breaker, and, after 5 seconds, pushing it back in. Cannot Perform Rho or Pilot Time Offset Measurement Table 6-13: Troubleshooting Rho and Pilot Time Offset Measurement Failure n Step 08/01/2001 Action Verify presence of RF signal by switching to spectrum analyzer screen. Verify PN offsets displayed on the analyzer is the same as the PN offset in the CDF file. Re–load MGLI2 data and repeat the test. If performing manual measurement, verify analyzer setup. Verify that no LPA in the sector is in alarm state (flashing red LED). Reset the LPA by pulling the circuit breaker, and, after 5 seconds, pushing back in. If Rho value is unstable and varies considerably (e.g. .95,.92,.93), this may indicate that the GPS is still phasing (i.e. trying to reach and maintain 0 freq. error). Go to the freq. bar in the upper right corner of the Rho meter and select Hz. Press and enter 10, to obtain an average Rho value. This is an indication the GPS has not stabilized before going INS and may need to be re-initialized. PRELIMINARY 6-15 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Transmit ATP – continued Cannot Perform Code Domain Power and Noise Floor Measurement Table 6-14: Troubleshooting Code Domain Power and Noise Floor Measurement Failure n Step Action Verify presence of RF signal by switching to spectrum analyzer screen. Verify PN offset displayed on analyzer is same as PN offset being used in the CDF file. Disable and re-enable MCC (one or more MCCs based on extent of failure). Cannot Perform Carrier Measurement Table 6-15: Troubleshooting Carrier Measurement Failure n Step Action Perform the test manually, using the spread CDMA signal. Verify High Stability 10 MHz Rubidium Standard is warmed up (60 minutes) and properly connected to test set-up. 6-16 08/01/2001 PRELIMINARY 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: Receive ATP Multi–FER Test Failure Table 6-16: Troubleshooting Multi-FER Failure n Step Action Verify test equipment set up is correct for a FER test. Verify test equipment is locked to 19.6608 and even second clocks. The yellow LED (REF UNLOCK) must be OFF. Verify MCCs have been loaded with data and are INS–ACT. Disable and re-enable the MCC (1 or more based on extent of failure). Disable, re-load code and data, and re-enable MCC (one or more MCCs based on extent of failure). Verify antenna connections to frame are correct based on the directions messages. 08/01/2001 PRELIMINARY6-17 1X SCt4812ET Lite BTS Optimization/ATP Troubleshooting: CSM Checklist Problem Description Many Clock Synchronization Manager (CSM) board problems may be resolved in the field before sending the boards to the factory for repair. This section describes known CSM problems identified in field returns, some of which are field-repairable. Check these problems before returning suspect CSM boards. Intermittent 19.6608 MHz Reference Clock / GPS Receiver Operation If having any problems with CSM board kit numbers, SGLN1145 or SGLN4132, check the suffix with the kit number. If the kit has version “AB,” then replace with version ‘‘BC’’ or higher, and return model AB to the repair center. No GPS Reference Source Check the CSM boards for proper hardware configuration. RF–GPS (Local GPS) – CSM kit SGLN1145, which should be installed in Slot l, has an on-board GPS receiver; while kit SGLN4132, in Slot 2, does not have a GPS receiver. Remote GPS (R–GPS) – Kit SGLN4132, which should be installed in both Slot 1 and Slot 2, does not have a GPS receiver. Any incorrectly configured board must be returned to the repair center. Do not attempt to change hardware configuration in the field. Also, verify the GPS antenna is not damaged and is installed per recommended guidelines. Checksum Failure The CSM could have corrupted data in its firmware resulting in a non-executable code. The problem is usually caused by either electrical disturbance, or interruption of data during a download. Attempt another download with no interruptions in the data transfer. Return CSM board back to repair center if the attempt to reload fails. GPS Bad RX Message Type This is believed to be caused by a later version of CSM software (3.5 or higher) being downloaded, via LMF, followed by an earlier version of CSM software (3.4 or lower), being downloaded from the CBSC. Download again with CSM software code 3.5 or higher. Return CSM board back to repair center if attempt to reload fails. 6-18 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Troubleshooting: CSM Checklist – continued CSM Reference Source Configuration Error This is caused by incorrect reference source configuration performed in the field by software download. CSM kit SGLN1145 and SGLN4132 must have proper reference sources configured (as shown below) to function correctly. CSM Kit No. SGLN1145 SGLN4132 Hardware Configuration With GPS Receiver Without GPS Receiver CSM Slot No. Reference Source Configuration Primary = Local GPS Backup = Either LFR or HSO Primary = Remote GPS Backup = Either LFR or HSO Primary = Remote GPS Backup = Either LFR or HSO Primary = Mate GPS Backup = Either LFR or HSO Takes Too Long for CSM to Come INS This may be caused by a delay in GPS acquisition. Check the accuracy flag status and/or current position. Refer to the CSM system time/GPS and LFR/HSO verification section in Chapter 3. At least 1 satellite should be visible and tracked for the “surveyed” mode and 4 satellites should be visible and tracked for the “estimated” mode. Also, verify correct base site position data used in “surveyed” mode. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-19 SCCP Backplane Troubleshooting Introduction The SCCP backplane is a multi–layer board that interconnects all the SCCP modules. The complexity of this board lends itself to possible improper diagnoses when problems occur. Connector Functionality The following connector overview describes the major types of backplane connectors along with the functionality of each. This will allow the Cellular Field Engineer (CFE) to: S Determine which connector(s) is associated with a specific problem type. S Allow the isolation of problems to a specific cable or connector. Span Line Connector The span line input is an 8 pin RJ–45 connector that provides a primary and secondary (if used) span line interface to each GLI2 in the SCCP shelf. The span line is used for MM/EMX switch control of the Master GLI2 and also all the BBX2 traffic. Power Input (Return A and B connectors) Provides a 27 volt input for use by the power supply modules. Power Supply Module Interface Each power supply module has a series of three different connectors to provide the needed inputs/outputs to the SCCP backplane. These include a VCC/Ground input connector, a Harting style multiple pin interface, and a +15V/Analog Ground output connector. The Transceiver Power Module converts 27/48 Volts to a regulated +15, +6.5, +5.0 volts to be used by the SCCP shelf cards. GLI2 Connector This connector consists of a Harting 4SU digital connector and a 6–conductor coaxial connector for RDM distribution. The connectors provide inputs/outputs for the GLI2s in the SCCP backplane. GLI2 Ethernet “A” and “B” Connections These SMB connectors are located on the SCCP backplane and connect to the GLI2 board. This interface provides all the control and data communications over the Ethernet LAN between the master GLI2, the other GLI2, and the LMF. BBX2 Connector Each BBX2 connector consists of a Harting 2SU/1SU digital connector and two 6–conductor coaxial connectors. These connectors provide DC, digital, and RF inputs/outputs for the BBX2s in the SCCP backplane. 6-20 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY SCCP Backplane Troubleshooting – continued CIO Connectors S RX RF antenna path signal inputs are routed through RX paths of the DRDCs or TRDCs at the RF interface panel (rear of frame), and through coaxial cables to the two MPC modules. The three “A” (main) signals go to one MPC; the three “B” (diversity) to the other. The MPC outputs the low–noise–amplified signals via the SCCP backplane to the CIO where the signals are split and sent to the appropriate BBX2. S A digital bus then routes the baseband signal through the BBX2, to the backplane, and then on to the MCC24/MCC8E slots. S Digital TX antenna path signals originate at the MCC24/MCC8Es. Each output is routed from the MCC24/MCC8E slot through the backplane to the appropriate BBX2. S TX RF path signal originates from the BBX2, travels through the backplane to the CIO, through the CIO, and then through multi-conductor coaxial cabling to the trunking module and LPAs in the LPA shelf. SCCP Backplane Troubleshooting Procedure The following tables provide standard procedures for troubleshooting problems that appear to be related to a defective SCCP backplane. The tables are broken down into possible problems and steps which should be taken in an attempt to find the root cause. IMPORTANT It is important to note that all steps be followed before replacing ANY SCCP backplane. Digital Control Problems No GLI2 Control via LMF (all GLI2s) Table 6-17: No GLI2 Control via LMF (all GLI2s) Step 08/01/2001 Action Check the Ethernet LAN for proper connection, damage, shorts, or opens. Be sure the LAN IN and OUT connectors in the power entry compartment are properly terminated. Be sure the proper IP address is entered in the Network Login tab of the LMF login screen. Verify SCCP backplane Shelf ID DIP switch is set correctly. 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-21 SCCP Backplane Troubleshooting – continued Table 6-17: No GLI2 Control via LMF (all GLI2s) Step Action Visually check the master GLI2 connectors (both module and backplane) for damage. Replace the master GLI2 with a known good GLI2. No GLI2 Control through Span Line Connection (All GLI2s) Table 6-18: No GLI2 Control through Span Line Connection (Both GLI2s) Step Action Verify SCCP backplane Shelf ID DIP switch is set correctly. Verify that the BTS and GLI2s are correctly configured in the OMCR/CBSC data base. Verify the span configurations set in the GLI2s match those in the OMC–R/CBSC database (refer to Table 6-29). Visually check the master GLI2 connectors (both module and backplane) for damage. Replace the master GLI2 with a known good GLI2. Check the span line inputs from the top of the frame to the master GLI2 for proper connection and damage. Table 6-19: MGLI2 Control Good – No Control over Co–located GLI2 Step Action Verify that the BTS and GLI2s are correctly configured in the OMCR CBSC data base. Check the ethernet for proper connection, damage, shorts, or opens. Visually check all GLI2 connectors (both module and backplane) for damage. Replace the remaining GLI2 with a known good GLI2. No AMR Control (MGLI2 good) Table 6-20: MGLI2 Control Good – No Control over AMR 6-22 Step Action Visually check the master GLI2 connectors (both module and backplane) for damage. Replace the master GLI2 with a known good GLI2. Replace the AMR with a known good AMR. 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY SCCP Backplane Troubleshooting – continued No BBX2 Control in the Shelf Table 6-21: MGLI2 Control Good – No Control over Co–located BBX2s Step Action Visually check all GLI2 connectors (both module and backplane) for damage. Replace the remaining GLI2 with a known good GLI2. Visually check BBX2 connectors (both module and backplane) for damage. Replace the BBX2 with a known good BBX2. No (or Missing) Span Line Traffic Table 6-22: BBX2 Control Good – No (or Missing) Span Line Traffic Step Action Visually check all GLI2 connectors (both module and backplane) for damage. Replace the remaining GLI2 with a known good GLI2. Visually check all span line distribution (both connectors and cables) for damage. If the problem seems to be limited to one BBX2, replace the BBX2 with a known good BBX2. No (or Missing) MCC24/MCC8E Channel Elements Table 6-23: No MCC24/MCC8E Channel Elements Step 08/01/2001 Action Verify CEs on a co–located MCC24/MCC8E (MccType=2) If the problem seems to be limited to 1 MCC24/MCC8E, replace the MCC24/MCC8E with a known good MCC24/MCC8E. – Check connectors (both module and backplane) for damage. If no CEs on any MCC24/MCC8E: – Verify clock reference to CIO. 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-23 SCCP Backplane Troubleshooting – continued DC Power Problems WARNING Potentially lethal voltage and current levels are routed to the BTS equipment. This test must be carried out with a second person present, acting in a safety role. Remove all rings, jewelry, and wrist watches prior to beginning this test. No DC Input Voltage to SCCP Shelf Power Supply Modules Table 6-24: No DC Input Voltage to Power Supply Module Step Action Verify DC power is applied to the frame. Determine if any circuit breakers are tripped. * IMPORTANT If a breaker has tripped, remove all modules from the SCCP shelf and attempt to reset it. – If breaker trips again, there is probably a cable or breaker problem within the frame or DC PDA. – If breaker does not trip, there is probably a defective module or sub–assembly within the shelf. Perform the tests in Table 2-3 to attempt to isolate the module. Verify that the PS1 and PS2 circuit breakers on the DC PDA are functional. Remove the frame rear access panel (Figure 2-1), and use a voltmeter to determine if the input voltage is being routed to the SCCP backplane. Measure the DC voltage level between: S The PWR_IN_A and PWR_RTN_A contacts on the extreme right side at the rear of the backplane S The PWR_IN_B and PWR_RTN_B contacts on the extreme right side at the rear of the backplane – If the voltage is not present, there is probably a cable or circuit breaker problem within the frame or DC PDA. 6-24 If everything appears to be correct, visually inspect the PS1 and PS2 power supply module connectors. Replace the power supply modules with a known good module. If steps 1 through 4 fail to indicate a problem, an SCCP backplane failure has occurred (possibly an open trace). 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY SCCP Backplane Troubleshooting – continued No DC Voltage (+5, +6.5, or +15 Volts) to a Specific GLI2, BBX2, or Switchmodule Table 6-25: No DC Input Voltage to any SCCP Shelf Module Step Action Verify steps outlined in Table 6-24 have been performed. Inspect the defective module connectors (both module and backplane) for damage. Replace suspect module with known good module. TX and RX Signal Routing Problems Table 6-26: TX and RX Signal Routing Problems Step Action Inspect all Harting Cable connectors and backplane connectors for damage in all the affected board slots. Perform steps outlined in the RF path troubleshooting flowchart in Figure 6-1. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-25 RFDS – Fault Isolation Introduction The RFDS is used to perform Pre–Calibration Verification and Post-Calibration Audits which limit-check the RFDS-generate and reported receive levels of every path from the RFDS through the directional coupler coupled paths. In the event of test failure, refer to the following tables. All tests fail Table 6-27: RFDS Fault Isolation – All tests fail Step Action Check the calibration equipment for proper operation by manually setting the signal generator output attenuator to the lowest output power setting and connecting the output port to the spectrum analyzer rf input port. Set the signal generator output attenuator to –90 dBm, and switch on the rf output. Verify that the spectrum analyzer can receive the signal, indicate the correct signal strength, (accounting for the cable insertion loss), and the approximate frequency. Visually inspect RF cabling. Make sure each directional coupler forward and reflected port connects to the RFDS antenna select unit on the RFDS. Check the wiring against the site documentation wiring diagram or the BTS Site Installation manual. Verify RGLI and TSU have been downloaded. Check to see that all RFDS boards show green on the front panel indicators. Visually check for external damage. If any boards that do not show green replace the RFDS with a known–good unit. Re–test after replacement. All RX and TX paths fail If every receive or transmit path fails, the problem most likely lies with the rf converter board or the transceiver board. Replace the RFDS with a known–good unit and retest. All tests fail on a single antenna If all path failures are on one antenna port, forward and/or reflected, make the following checks. Table 6-28: RFDS Fault Isolation – All tests fail on single antenna path Step Action Visually inspect the site interface cabinet internal cabling to the suspect directional coupler antenna port. Verify the forward and reflected ports connect to the correct RFDS antenna select unit positions on the RFDS backplane. Refer to the installation manual for details. . . . continued on next page 6-26 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY RFDS – Fault Isolation – continued Table 6-28: RFDS Fault Isolation – All tests fail on single antenna path Step Action Replace the RFDS with a known–good unit. Replace the RF cables between the affected directional coupler and RFDS. NOTE Externally route the cable to bypass suspect segment. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-27 Module Front Panel LED Indicators and Connectors Module Status Indicators Each of the non-passive plug-in modules has a bi-color (green & red) LED status indicator located on the module front panel. The indicator is labeled PWR/ALM. If both colors are turned on, the indicator is yellow. Each plug-in module, except for the fan module, has its own alarm (fault) detection circuitry that controls the state of the PWR/ALM LED. The fan TACH signal of each fan module is monitored by the AMR. Based on the status of this signal the AMR controls the state of the PWR/ALM LED on the fan module. LED Status Combinations for All Modules (except GLI2, CSM, BBX2, MCC24, MCC8E) PWR/ALM LED The following list describes the states of the module status indicator. S Solid GREEN – module operating in a normal (fault free) condition. S Solid RED – module is operating in a fault (alarm) condition due to electrical hardware failure. Note that a fault (alarm) indication may or may not be due to a complete module failure and normal service may or may not be reduced or interrupted. DC/DC Converter LED Status Combinations The PWR CNVTR has its own alarm (fault) detection circuitry that controls the state of the PWR/ALM LED. PWR/ALM LED The following list describes the states of the bi-color LED. S Solid GREEN – module operating in a normal (fault free) condition. S Solid RED – module is operating in a fault (alarm) condition due to electrical hardware problem. 6-28 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Module Front Panel LED Indicators and Connectors – continued CSM LED Status Combinations PWR/ALM LED The CSMs include on-board alarm detection. Hardware and software/firmware alarms are indicated via the front panel indicators. After the memory tests, the CSM loads OOS–RAM code from the Flash EPROM, if available. If not available, the OOS–ROM code is loaded from the Flash EPROM. S Solid GREEN – module is INS_ACT or INS_STBY no alarm. S Solid RED – Initial power up or module is operating in a fault (alarm) condition. S Slowly Flashing GREEN – OOS_ROM no alarm. S Long RED/Short GREEN – OOS_ROM alarm. S Rapidly Flashing GREEN – OOS_RAM no alarm or INS_ACT in DUMB mode. Short RED/Short GREEN – OOS_RAM alarm. Long GREEN/Short RED – INS_ACT or INS_STBY alarm. Off – no DC power or on-board fuse is open. Solid YELLOW – After a reset, the CSMs begin to boot. During SRAM test and Flash EPROM code check, the LED is yellow. (If SRAM or Flash EPROM fail, the LED changes to a solid RED and the CSM attempts to reboot.) Figure 6-2: CSM Front Panel Indicators & Monitor Ports SYNC MONITOR PWR/ALM Indicator FREQ MONITOR FW00303 . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-29 Module Front Panel LED Indicators and Connectors – continued FREQ Monitor Connector A test port provided at the CSM front panel via a BNC receptacle allows monitoring of the 19.6608 MHz clock generated by the CSM. When both CSM 1 and CSM 2 are in an in-service (INS) condition, the CSM 2 clock signal frequency is the same as that output by CSM 1. The clock is a sine wave signal with a minimum amplitude of +2 dBm (800 mVpp) into a 50 Ω load connected to this port. SYNC Monitor Connector A test port provided at the CSM front panel via a BNC receptacle allows monitoring of the “Even Second Tick” reference signal generated by the CSMs. At this port, the reference signal is a TTL active high signal with a pulse width of 153 nanoseconds. MMI Connector – Only accessible behind front panel. The RS–232 MMI port connector is intended to be used primarily in the development or factory environment, but may be used in the field for debug/maintenance purposes. 6-30 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Module Front Panel LED Indicators and Connectors – continued GLI2 LED Status Combinations The GLI2 module has indicators, controls and connectors as described below and shown in Figure 6-3. The indicators and controls consist of: S Four LEDs S One pushbutton ACTIVE LED Solid GREEN – GLI2 is active. This means that the GLI2 has shelf control and is providing control of the digital interfaces. Off – GLI2 is not active (i.e., Standby). The mate GLI2 should be active. MASTER LED S Solid GREEN – GLI2 is Master (sometimes referred to as MGLI2). S Off – GLI2 is non-master (i.e., Slave). ALARM LED S Solid RED – GLI2 is in a fault condition or in reset. S While in reset transition, STATUS LED is OFF while GLI2 is performing ROM boot (about 12 seconds for normal boot). S While in reset transition, STATUS LED is ON while GLI2 is performing RAM boot (about 4 seconds for normal boot). S Off – No Alarm. STATUS LED S Flashing GREEN– GLI2 is in service (INS), in a stable operating condition. S On – GLI2 is in OOS RAM state operating downloaded code. S Off – GLI2 is in OOS ROM state operating boot code. SPANS LED S Solid GREEN – Span line is connected and operating. S Solid RED – Span line is disconnected or a fault condition exists. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-31 Module Front Panel LED Indicators and Connectors – continued GLI2 Pushbuttons and Connectors RESET Pushbutton – Depressing the RESET pushbutton causes a partial reset of the CPU and a reset of all board devices. GLI2 will be placed in the OOS_ROM state MMI Connector – The RS–232MMI port connector is intended to be used primarily in the development or factory environment but may be used in the field for debug/maintenance purposes. Figure 6-3: GLI2 Front Panel Operating Indicators LED ALARM LED ALARM SPANS LED SPANS RESET RESET PUSHBUTTON STATUS STATUS LED ACTIVE ACTIVE LED STATUS OFF - operating normally ON - briefly during powerĆup when the Alarm LED turns OFF. SLOW GREEN - when the GLI2 is INS (inĆservice) RESET All functions on the GLI2 are reset when pressing and releasing the switch. ALARM OFF - operating normally ON - briefly during powerĆup when the Alarm LED turns OFF. SLOW GREEN - when the GLI2 is INS (inĆservice) SPANS OFF - card is powered down, in initialization, or in standby GREEN - operating normally YELLOW - one or more of the equipped initialized spans is receiving a remote alarm indication signal from the far end RED - one or more of the equipped initialized spans is in an alarm state MASTER The pair of GLI2 cards include a redundant status. The card in the top shelf is designated by hardware as the active card; the card in the bottom shelf is in the standby mode. ON - operating normally in active card OFF - operating normally in standby card MMI PORT CONNECTOR An RSĆ232, serial, asynchronous communications link for use as an MMI port. This port supports 300 baud, up to a maximum of 115,200 baud communications. ACTIVE Shows the operating status of the redundant cards. The redundant card toggles automatically if the active card is removed or fails ON - active card operating normally OFF - standby card operating normally MMI MMI PORT CONNECTOR MASTER MASTER LED OPERATING STATUS FW00225 6-32 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Module Front Panel LED Indicators and Connectors – continued BBX2 LED Status Combinations PWR/ALM LED The BBX module has its own alarm (fault) detection circuitry that controls the state of the PWR/ALM LED. The following list describes the states of the bi-color LED: Solid GREEN – INS_ACT no alarm Solid RED Red – initializing or power-up alarm Slowly Flashing GREEN – OOS_ROM no alarm Long RED/Short GREEN – OOS_ROM alarm Rapidly Flashing GREEN – OOS_RAM no alarm Short RED/Short GREEN – OOS_RAM alarm Long GREEN/Short RED – INS_ACT alarm MCC24 LED Status Combinations The MCC24 module has LED indicators and connectors as described below. See Figure 6-4. Note that the figure does not show the connectors as they are concealed by the removable lens. The LED indicators and their states are as follows: PWR/ALM LED S RED – fault on module ACTIVE LED Off – module is inactive, off-line, or not processing traffic. Slowly Flashing GREEN – OOS_ROM no alarm. Rapidly Flashing Green – OOS_RAM no alarm. Solid GREEN – module is INS_ACT, on-line, processing traffic. PWR/ALM and ACTIVE LEDs S Solid RED – module is powered but is in reset or the BCP is inactive. MMI Connectors S The RS–232 MMI port connector (four-pin) is intended to be used primarily in the development or factory environment but may be used in the field for debugging purposes. S The RJ–11 ethernet port connector (eight-pin) is intended to be used primarily in the development environment but may be used in the field for high data rate debugging purposes. . . . continued on next page 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-33 Module Front Panel LED Indicators and Connectors – continued Figure 6-4: MCC24 Front Panel LEDs and LED Indicators PWR/ALM PWR/ALM LED LED COLOR OFF - operating normally ON - briefly during powerĆup and during failure ąconditions An alarm is generated in the event of a failure PWR/ALM LENS (REMOVABLE) ACTIVE RED GREEN RED ACTIVE ACTIVE LED OPERATING STATUS RAPIDLY BLINKING - Card is codeĆloaded but ąnot enabled SLOW BLINKING - Card is not codeĆloaded ON - card is codeĆloaded and enabled ą(INS_ACTIVE) ON - fault condition SLOW FLASHING (alternating with green) - CHI ąbus inactive on powerĆup FW00224 LPA Shelf LED Status Combinations LPA Module LED Each LPA module is provided with a bi–color LED on the ETIB module next to the MMI connector. Interpret this LED as follows: S GREEN — LPA module is active and is reporting no alarms (Normal condition). S Flashing GREEN/RED — LPA module is active but is reporting an low input power condition. If no BBX is keyed, this is normal and does not constitute a failure. S Flashing RED — LPA is in alarm. 6-34 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Basic Troubleshooting – Span Control Link Span Problems (No Control Link) Table 6-29: Troubleshoot Control Link Failure n Step Action Connect the CDMA LMF computer to the MMI port on the applicable MGLI2/GLI2 as shown in Figure 6-5. Start an MMI communication session with the applicable MGLI2/GLI2 by using the Windows desktop shortcut icon (refer to Table 3-11). Once the connection window opens, press the CDMA LMF computer Enter key until the GLI2> prompt is obtained. At the GLI2> prompt, enter: config ni current (equivalent of span view command) The system will respond with a display similar to the following: The frame format in flash Equalization: Span A – Default (0–131 Span B – Default (0–131 Span C – Default (0–131 Span D – Default (0–131 Span E – Default (0–131 Span F – Default (0–131 is set to use T1_2. feet feet feet feet feet feet for for for for for for T1/J1, T1/J1, T1/J1, T1/J1, T1/J1, T1/J1, 120 120 120 120 120 120 Ohm Ohm Ohm Ohm Ohm Ohm for for for for for for E1) E1) E1) E1) E1) E1) Linkspeed: Default (56K for T1 D4 AMI, 64K otherwise) Currently, the link is running at the default rate The actual rate is 0 NOTE Defaults for span equalization are 0–131 feet for T1/J1 spans and 120 Ohm for E1. Default linkspeed is 56K for T1 D4 AMI spans and 64K for all other types. There is no need to change from defaults unless the OMC–R/CBSC span configuration requires it. The span configurations loaded in the GLI must match those in the OMCR/CBSC database for the BTS. If they do not, proceed to Table 6-30. Repeat steps 1 through 5 for all remaining GLIs. If the span settings are correct, verify the edlc parameters using the show command. Any alarm conditions indicate that the span is not operating correctly. S Try looping back the span line from the DSX panel back to the MM, and verify that the looped signal is good. S Listen for control tone on the appropriate timeslot from the Base Site and MM. Exit the GLI MMI session and HyperTerminal connection by selecting File from the connection window menu bar, and then Exit from the dropdown menu. If no TCHs in groomed MCCs (or in whole SCCP shelf) can process calls, verify that the ISB cabling is correct and that ISB A and ISB B cables are not swapped. 08/01/2001 1X SCt4812ET Lite BTS Optimization/ATP PRELIMINARY 6-35 Basic Troubleshooting – Span Control Link – continued Figure 6-5: MGLI/GLI Board MMI Connection Detail STATUS LED STATUS RESET ALARM SPANS MASTER MMI ACTIVE To MMI port RESET Pushbutton ALARM LED SPANS LED MASTER LED MMI Port Connector ACTIVE LED 8–PIN NULL MODEM BOARD (TRN9666A) 8–PIN TO 10–PIN RS–232 CABLE (P/N 30–09786R01) CDMA LMF COMPUTER RS–232 CABLE COM1 OR COM2 DB9–TO–DB25 ADAPTER Set BTS Site Span Configuration IMPORTANT 6-36 Perform the following procedure ONLY if span configurations loaded in the MGLI2/GLI2s do not match those in the OMCR/CBSC data base, AND ONLY when the exact configuration data is available. Loading incorrect span configuration data will render the site inoperable. 1X SCt4812ET Lite BTS Optimization/ATP 08/01/2001 PRELIMINARY Basic Troubleshooting – Span Control Link – continued Table 6-30: Set BTS Span Parameter Configuration n Step Action If not previously done, connect the CDMA LMF computer to the MMI port on the applicable MGLI2/GLI2 as shown in Figure 6-5. If there is no MMI communication session in progress with the applicable MGLI2/GLI2, initiate one by using the Windows desktop shortcut icon (refer to Table 3-11). At the GLI2> prompt, enter: config ni format
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