Cisco Systems BTS-R3 Broadband Data BTS User Manual chpt 2a 40 00047 02 F I C TTA

Cisco Systems, Inc Broadband Data BTS chpt 2a 40 00047 02 F I C TTA

Manual 2

Navini Networks, Inc. Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (TTA) 41 October 23, 2003 Chapter 2: Installation Pre-installation As was shown in Figure 4, prior to installing the equipment a number of planning and acquisition activities take place. The installation itself takes only about 2 days. The I&C crew may or may not be involved with all the pre-installation activities. Of these, they are most likely to be involved in the Site Candidate Evaluation, the gathering of data for the Interference Analysis, and the Antenna Power & Cable Selection step of the process. Project Plan A Project Plan is a document that lays out the work to be done, the objectives of the project, the schedule, resources required, and so forth. If Navini is performing the I&C activities, a Project Manager is assigned. The Project Manager prepares the Project Plan and shares it with the Navini and customer teams. An example of a written Statement of Work (SOW), Responsibility Assignment Matrix (RAM), and Work Breakdown Structure (WBS) for installation and commissioning are provided in Appendices A, B, and C. These types of documents may be used in negotiating work between companies and contractor services. Coverage Prediction Map Early in the planning of deployment of Ripwave Base Station equipment, an RF Engineer will go through the process of studying the RF environment of the candidate sites that the customer has identified. Readings are taken and analyzed at each site in order to predict what range of coverage can be expected from installing a Base Station at the site. Coverage predictions account for both Base Station performance and Marketing objectives with the service itself. The customer accomplishes the latter as part of the decisions concerning site selection.
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 42 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Site Candidate Evaluation Often Technicians will be very comfortable with either the networking side or the wireless side of the system, but not usually both. To evaluate a potential install site, a form helps ensure all aspects of the site have been considered. Information about the site is recorded on the form. Since each site is unique, the form helps to ensure nothing is taken for granted or assumed about the installation site for the Ripwave equipment. A copy of this form may be found in Appendix D. It includes places to capture the logistics of the site, tower or rooftop mount possibilities, GPS coordinates, type of antenna to be installed, whether or not an outdoor enclosure is provided, power availability, distance between connection points, ventilation, a place for drawings from every angle, etc. It is from this information that the site will be designed, then installed to plan. Interference Analysis As part of deploying a Ripwave Base Station, the Field Service Engineer must collect critical information from the site. The data is provided to the RF Engineering personnel, who can then evaluate the Radio Frequency (RF) conditions. The RF Engineer analyzes the data for existing interference from other sources, and takes that into account when creating the coverage prediction map. The RF Engineer, in turn, supplies to the Field Service Engineer at the site valuable data parameters and configuration information unique to each system and each site. In addition to coverage, though, the interference analysis also helps to predict the quality of service, the power requirements to get above the noise floor, and other expectations regarding the site. This study helps Navini and the customer decide which type of system (frequency) and antenna (panel or omni) will provide the best results. To collect the data the on-site Technician or Field Engineer performs an Interference Sweep Procedure (Appendix E) and supplies that data to the RF Engineer(s). Refer to Appendix F for instructions on using the sweep tool. Site Selected & Designed After evaluating the potential sites and the coverage prediction, the customer must select the specific site where the Base Station is to be deployed. The site must be carefully blueprinted to prepare for equipment ordering and installation. Navini can supply specifications and drawings to help the customer design the site. Refer to Appendices G, H, I, J, and K for BTS Specifications, RFS Data Sheets, BTS Outdoor Enclosures Manufacturers, Rectifier/Battery Backup Manufacturers, and a sample Base Station drawing. Check all regulatory standards (refer to Chapter 1, Page 8 “Regulatory Information”) prior to installation.
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 43 October 9, 2003 Network Architecture Plan The IP Networking community involved in the project, both from Navini and the customer, often work together to analyze and plan how the Ripwave system will be integrated into the customer’s network. Of course, they are looking for efficient operation of the system and seamless integration. They have to plan the traffic routing, IP addressing, protocol compatibility, and so forth. Antenna Power & Cable Selection The size and type of cable used to install the Base Station affect power loss and calibration range for the transmitter and receiver. It is at this point in the process that the specific cable manufacturer, type of cable, and cable size must be determined. A complete procedure and tool are explained in Appendix L. Refer, also, to Chapter 1, Page 8 “Regulatory Information” for FCC warning regarding RF, and UL and NEC/CEC information regarding cable length and connectors. All BTS and RF shelf Coax and Digital cables between the Digital and RF Shelves are 60 inches in length. Physical distance between Digital and RF Shelves will always be less than the cable length. Bill of Materials The customer has to generate the Bill of Materials (BoM) - the actual equipment order to be manufactured and shipped to the installation site. Navini can provide part numbers and ordering information, as well as recommendations and other details that will assist customers in the correct placement of orders. There is a sample Bill of Materials in Appendix M. Acquire Materials Once ordered, the customer ensures that everything required for installing the Base Station is secured and at the deployment site. Confirm Backhaul Connection, EMS Server & FTP Server, Input Power & Grounding at Site The Backhaul connection for the Ripwave Base Station consists of up to two (2) Ethernet cable connections with RJ-45 connectors for each BTS installed, OR, up to eight (8) T1 connections with RJ-48 connectors for each BTS. The quantity of each connection will depend on the site requirements. These connections need to be made available before installation begins. Refer to the Regulatory Information in Chapter 1, Page 8 regarding backhaul connections, power and grounding.
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 44 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 The customer’s EMS Server and FTP Server should be put into place prior to the installation crew’s arrival at site. If the customer’s EMS Server is not available until after installation begins, the crew can typically use a laptop to perform initial configuration. The FTP Server, however, must be in place in order to commission the Base Station and test its operation. Power Requirements for the Base Station Refer to Table 3 Technical Specifications and to the Regulatory Information found in Chapter 1, Page 8. The BTS must be connected to a power supply/rectifier that is UL listed to UL60950 or UL60950-1 and has a grounded SELV output; and it must be installed in accordance with NEC/CEC Articles 800/810/830. A UL listed disconnect device, such as a circuit breaker or fuse, must be installed between the power supply and the BTS chassis connections. Ground Requirements for the Base Station The Base Station requires an earth ground connection. This ground should exhibit a maximum of five (5) ohms across true ground. All power and ground conductors must be mechanically supported to avoid strain of the wires and connection points. Refer to the Regulatory Information in Chapter 1, Page 8. NOTE: The installation procedures, which begin next, follow the same order as shown in the High-level I&C Process Flowchart in Figure 2.
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 45 October 9, 2003 Install Power & Grounding Check all regulatory standards (refer to Chapter 1, Page 8 “Regulatory Information”) prior to installation. System Ground Buss Bar & Surge Protectors The Base Station system ground buss bar and data/power cable surge protectors are mounted on the wall adjacent to the BTS rack or enclosure. They should be mounted per accepted telecom standards and procedures. Step 1. Mount the data/power cable surge protectors (Figure 10) with the label ‘lines’ toward the RFS and the label ‘BTS’ toward the BTS. Step 2. Apply a thin coat of anti-oxidant joint compound to both sides of the system ground buss bar to ensure proper connection between it and the surge protectors. Figure 10: Data/Power Cable Surge Protector (Not Needed in TTA BTS) To install the eight (8) antenna and one (1) cal cable surge protectors (Figure 11), and the one (1) or two (2) Global Positioning System (GPS) surge protectors (Figure 11) in the system ground buss bar, follow the steps below. 1. Install the rubber gasket into the groove in the surge protector. 2. Install the surge protector in the system ground buss bar with the surge side toward the antenna and the protected side toward the BTS. 3. Install the star washer and nut on the top of the surge protector. Torque the nut to 140-150 inch-pounds. 4. When finished, the mounted surge protectors in the buss bar will appear as in Figure 12.
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 46 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Figure 11: Surge Protectors From left to right: PolyPhaser surge protectors are used with the Combo Chassis and Split Chassis configurations (PSX-ME for the Cal and RF cables, at the antenna, PSX for the Cal and RF cables at the ground Buss Bar, and DGXZ+06NFNF-A for the GPS antenna cable at the ground Buss Bar. Huber+Suhner surge protectors are used with TTA configurations (3406.17.0012 PSX for the Cal and GPS cables, and for the Ancillary Surge protection at the RFS; 3406.17.0009 for the Ancillary Surge protection at the ground Buss Bar). It is recommended the use of UL listed surge protectors. Figure 12: Surge Protectors in Buss Bar PSX-ME PSX DGXZ+06NFNF-A3406.17.0012 3406.17.0009PSX-MEPSX-ME PSXPSX DGXZ+06NFNF-A3406.17.00123406.17.0012 3406.17.00093406.17.0009
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 47 October 9, 2003 Antenna Ground Buss Bar You should install the Antenna Ground Buss Bar on the mounting structure per accepted telecom standards and procedures (Figure 13). The location is decided on during the site survey and should be close to the RFS. Two or more buss bars may be installed per system. Figure 13: Buss Bars System Ground Wiring A minimum #6 stranded, green-coated copper wire and grounding hardware are used for ground connections. Install the system ground as a single-point connection between the system ground buss bars, the data/power surge protector, the BTS chassis, the BTS mounting rack, and the RFS antenna. Connect the system ground to earth ground. Apply anti-oxidant joint compound to all connections (Figure 14). Tighten all connections until secure. Figure 14: Applying anti-oxidant joint compound Antenna Buss BarBTS Buss Bar Antenna Buss BarBTS Buss Bar
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 48 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Install Cables All cable connections in the Combo and Split-Chassis configurations are made using standard RF coaxial cable. The Navini Networks minimum for cable connections from the GPS to the BTS is LMR 400, 3/8-inch coaxial cable. Other types of cable that are comparable may be used. These were determined under “Antenna Power & Cable Selection” (Appendix L) activities cited earlier. The TTA configuration uses a composite cable containing nine RG-6 or RG-11 individual strands to replace the 8 RF cables, the Cal cable and the Power/Data cable (the signal previously sent through the Power/Data cable is now sent through the center connector of the individual RG-6 or RG-11 strands). All Coaxial and Digital cables between the Digital and RF shelves are 60 inches in length. Physical distance between Digital and RF shelves will always be less than the cable length. Figure 15: Coaxial Cables. HELIAXRG-6 BundleRG6 RG11HELIAXRG-6 BundleRG6 RG11
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 49 October 9, 2003 Cut Cables for the Combo and Split Chassis Configurations The cable run is determined during the site survey. Note that the length of the cables may need to be slightly different, depending on the position of the buss bar relative to the BTS. ?? Cut nine (9) pieces of cable for the main feeder cables to connect the nine RFS connectors to the surge protectors on the system ground buss bar. Leave enough extra length for the service loop below the RFS and for connection to the surge protectors. ?? Cut eight (8) pieces of cable for the jumper cables to connect the surge protectors on the system ground buss bar to the eight (8) RF input connectors on the back of the BTS. Leave enough extra cable length for service. ?? Cut one (1) piece of cable for the jumper cable to connect the surge protector on the system ground buss bar to the CAL connector on the back of the BTS. Leave enough extra cable length for service. ?? Cut a piece of LMR 400 cable to connect each of the GPS antennas to the surge protectors on the system ground buss bar. Leave enough extra cable length for service. The maximum length of the LMR 400 cable for the GPS antenna is 100 feet. ?? Cut a piece of LMR 400 cable to connect the surge protectors on the system ground buss bar to each GPS connector on the back of the BTS. Leave enough extra cable length for service. If there is more than one BTS co-located in the installation, two GPS antennas can serve all BTSs in the installation. ?? The cable from the GPS antenna (after it goes through the surge protector) is connected to the antenna input of the GPS distribution amplifier (Figure 16). The output ports of the GPS distribution amplifier are connected to the GPS inputs of the BTS. The GPS distribution amplifier is powered by the GPS antenna input. The drawing in Figure 17 depicts the placement of the shared GPS resources among three BTSs. Figure 16: GPS Distribution Amplifier
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 50 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Figure 17: Depiction of GPS Distribution Amplifier GPS 1PolyphaserDistribution AmpGPS 2PolyphaserDistribution AmpBTS 1 BTS 2 BTS 3SHELTER
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 51 October 9, 2003 Cut Bundle Cable for the TTA Configuration On the end that attaches to the antenna, the RG-6 or RG-11 bundle cable comes with a weatherized “boot” and nine the N-type Male connectors in place. Cut the cable to the proper length at the other end and attach the proper connectors. Figure 18 Bundle Cable, Weatherized “Boot” and End Connectors Cal Port(BTS back plane)RFCs(BTS front)N-typeQMACal Port(BTS back plane)RFCs(BTS front)N-typeQMA
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 52 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Install Connectors on Cables Install connectors on both ends of each cable. For LMR 600 cables, install EZ-600 N-type male connectors. For LMR 400 cables, install EZ-400 N-type male connectors. Steps for installing both types of connectors can be found in Appendix N. For reference, Appendix L also provides a list of vendors who can make cables. The Cal and RF cables in the Combo and Split Chassis configuration have N-type male connectors at both ends. The Bundle Cable used with the TTA configuration has N-type male connectors at the antenna end, but the connectors used at the other end depend on the degree of lightning protection desired. Is only the built-in protection is used, the connectors at the BTS end are QMA male, but if the Ancillary surge protectors are used, the connectors at the BTS end of this cable are N-type male. Figure 19: Connectors. N-TypeFMQMAMBNCFMRG6Front BackRG11 BNC RJ45/RJ48N-TypeFMQMAMBNCFMRG6Front BackRG11 BNC RJ45/RJ48
Navini Networks, Inc. Ripwave Base Station I&C Guide Chapter 2a Part #40-00047-02 Rev F v1.0 (1.20) 53 October 9, 2003 Sweep RF Cables Sweep each individual cable, the RFS (8) and CAL main feeder and jumper cables, to check for line loss. Follow the instructions for sweeping the cables provided in Appendix O entering the results in the RFS System Test Form. Check continuity of the data/power cable. When finished, cover the cable connectors for protection until they are connected to the RFS or GPS. Connectorize & Run Cables Connect all of the RF cables to the surge protectors in the system ground buss bar. An example of a buss bar connection is shown in Figure 14. Ensure that the proper cable is connected to the proper surge protector. Connect the power/data cable to its surge protector. Also connect all the jumper cables to the surge protectors that will attach to the BTS. Do not connect these cables to the BTS at this time. Torque all the cable connectors to the surge protectors on the system ground buss bar to 20-24 inch-pounds. Figure 20: Buss Bar Connections Route all of the cables – RFS (8), CAL, DATA/POWER and GPS (1 or 2) - between the system ground buss bar and the RFS, and GPS mounting sites. If running the cables up a tower, use a hoisting grip to lift the cables. GPS 1 GPS2RF 1-4RF 5-8CALGPS 1 GPS2RF 1-4RF 5-8CAL
Ripwave Base Station I&C Guide Navini Networks, Inc. Chapter 2a 54 Part #40-00047-02 Rev E v1.0 (TTA) October 23, 2003 Figure 21: Cable Routing CALData/Power*RFCAL Data/Power*RFCALRF RFOmni Panel 3.5 GHz TTA Panel* In the TTA configurations, the Data/Power cable is no longer requiredCALData/Power*RFCAL Data/Power*RFCALRF RFOmni Panel 3.5 GHz TTA Panel* In the TTA configurations, the Data/Power cable is no longer required

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