Document Name: MBSC0700-040-RUXX MBSC0700-020-RUXX Revision: 001.02A Effective Date: 12/15/2015 USER MANUAL Fiber Optic MBSC Platform MBSC0700-040-RUXX MBSC0700-020-RUXX High-Power In-Building Coverage Solution 6185 Phyllis Drive Cypress, CA 90630 USA PH: 714.230.8333 Visit our Website at www.BTIwireless.
MBSC-C RU Copyright © 2016 BTI Wireless All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from BTI Wireless.
MBSC-C RU Document History Paper copies are valid only on the day they are printed. Contact the author if you are in any doubt about the accuracy of this document. Revision History Revision Number 001.00A 001.01A 001.
MBSC-C RU TABLE OF CONTENTS 1 INTRODUCTION 1.1 SYSTEM SOLUTION BLOCK DIAGRAM 1 1 1.1.1 Host Unit 1 1.1.2 Remote Node 2 2 SAFETY 3 3 SYSTEM OVERVIEW AND UNIT DESCRIPTION 4 3.1 4 3.1.1 Interface with BTS 4 3.1.2 Interface with Cellular Phones 5 3.1.3 Fiber Optic Transport 5 3.1.4 Powering 5 3.1.5 Cooling 5 3.1.6 Fault Detection and Alarm Reporting 5 3.2 HOST UNIT DESCRIPTION 5 3.2.1 Host Unit Components 6 3.2.2 Mounting 9 3.2.
MBSC-C RU 4.2.6 4.3 HOST UNIT INSTALLATION 24 24 4.3.1 Rack Mounting 24 4.3.2 Cable Connections 26 4.4 REMOTE NODE INSTALLATION 30 4.4.1 Bracket and Shroud Installation 30 4.4.2 Cable Connections 33 4.5 INSTALLATION FINAL INSPECTION 38 4.5.1 Host Unit Connection Overview 39 4.5.2 Remote Node Connection Overview 40 4.5.3 mBSC-C Inspection Checklist 41 4.5.4 Cabling Inspection 41 4.6 5 Lightning Protecting and Grounding SYSTEM TEST SYSTEM MONITORING &CONFIGURATION 5.
MBSC-C RU 6 MAINTENANCE 68 6.1 ELECTROSTATIC DISCHARGE PRECAUTIONS 68 6.2 PREVENTATIVE MAINTENANCE 68 6.3 FAULT DETECTION AND ALARM REPORTING 68 6.4 TROUBLESHOOTING QUICK GUIDE 69 6.4.1 Host Unit Trouble Shooting 70 6.4.2 Remote Unit Trouble Shooting 71 7 TERMS, ACRONYMS & ABBREVIATIONS 72 8 PACKING LIST 73 ©2015-2016 BTI Wireless Inc.
MBSC-C RU LIST OF FIGURES FIGURE 1BLOCK DIAGRAM OF HOST UNIT ................................................................................................................................. 1 FIGURE 2 BLOCK DIAGRAM OF REMOTE NODE .......................................................................................................................... 2 FIGURE 3MBSC SYSTEM FUNCTIONAL OVERVIEW ...................................................................................................................
MBSC-C RU FIGURE 35 AC POWER JUNCTION BOX ..................................................................................................................................... 38 FIGURE 364-PIN AC POWER CONNECTOR ................................................................................................................................ 38 FIGURE 37HOST UNIT CONNECTION OVERVIEW.......................................................................................................................
MBSC-C RU LIST OF TABLES TABLE 1 HOST UNIT USER INTERFACE...................................................................................................................................... 10 TABLE 2HOST UNIT INDICATOR DESCRIPTION .......................................................................................................................... 12 TABLE 3 RF-OPTIC TRANSCEIVER INTERFACE ................................................................................................................
MBSC-C RU 1 Introduction The MBSC1900-040-RU Fiber Optic Coverage System is used to extend wireless coverage to specific areas in building(s), or throughout a complex zone. The mBSC product family offers a flexible, scalable, modular platform to improve signal quality and enhance the services to meet the increasing demands. The MBSC1900-040-RU system components include a Host Unit (HU) and a Remote Node. Each Host Unit can feed up to eight multi-band Remote Nodes, each utilizing a single fiber.
MBSC-C RU 1.1.2 Remote Node CM-ANT CM-BTS 700MHz 0.7~2.
MBSC-C RU 2 Safety Caution All the following “Safety Precautions” must be observed during the entire installation and operation of the mBSC system. 1. The mBSC system is designed for maximum safety and reliability when installed, used, and maintained by trained and qualified technicians in accordance with the procedures and instructions contained in this manual. To assure the safe operation of your system, always follow the safety and operational recommendations in this manual. 2.
MBSC-C RU 3 System Overview and Unit Description 3.1 System Overview The MBSC1900-040-RU system is a multi-operator, multi-band and multi-technology coverage system that provides in-building / venue coverage for up to five operating bands. Large buildings typically interfere with the transmission or reception of cellular phone system signals by imposing high attenuation losses on the RF signal.
MBSC-C RU transceiver for transmission to the interconnected Remote Node(s).In the uplink path the Host Unit converts a composite multi-band optical signal into independent RF signals for interconnection with the BTS receive elements. 3.1.2 Interface with Cellular Phones The mBSC Remote Node interfaces with the cellular phones through the service antennas. In the reverse path, the Remote Node receives RF signals from cellular phones.
MBSC-C RU RF interface with BTS (Simplex TXin, RXout) Optical interface to Remote Nodes Conversion of the forward path(downlink) RF signals into up to four simulcast optical signals Conversion of up to four reserve(uplink) optical signals to RF signals Manages and monitors the system alarms and configurations Provides alarm information to a local alarm or remote system 4 (1 05.9 5.
MBSC-C RU BIU Opreate Tx1 OUT Tx700 Tx2 OUT Tx850 Tx3 Tx1900 OUT Tx2100 Tx4 OUT Tx2600 Rx1 IN Rx700 Rx2 Rx850 IN Rx3 Rx1900 IN Rx2100 Rx4 IN Rx2600 Figure 5BIU 3.2.1.2 FIU (Fiber Interface Unit) The FIU provides the interface between the combined RF signals (BIU) and the optical fiber connections. Each FIU is equipped for 2independent bi-directional fiber connections.
MBSC-C RU 3.2.1.3 PSU (Power Supply Unit) The Host Unit is powered by -48V DC. The PSU takes the -48 VDC input source power and provides voltage conversion and distribution for the line cards installed within the host unit shelf. The host unit is equipped with 2 independent PSU’s in parallel redundancy. Each PSU is hot swappable (one unit at a time only). PSU 1 0 Figure 7 PSU 3.2.1.
MBSC-C RU RCU Opreate Modem USB RS232 RJ45 Figure 8RCU 3.2.2 Mounting The Host Unit is intended for use in indoor, rack-mounted applications. For rack mounting, a pair of mounting brackets is provided that allows the Host Unit to be mounted in a 19” equipment rack. When rack-mounted, the front panel of the Host Unit is flush with the front of the rack. 3.2.3 Fault Detection and Alarm Reporting The Host Unit detects internal circuitry faults and optical port faults.
MBSC-C RU 3.2.6 Powering The Host Unit is powered by -48V DC through a DC power terminal block on the rear. An ON/OFF switch is provided at the PSU front panel. The switch applies power to the Host Unit internal power supply, which distributes the operating voltages to lines cards installed in the Host Unit shelf. 3.2.7 Host Unit Interface The Host Unit interface consists of the various connectors, switches, terminals and LED indicators that are provided on the front and rear panel.
MBSC-C RU 4 User Interface Designation Power Input Screw-type terminal block -48VDC power input 5 POI FAN (optional) Screw type terminal +12VDC for external power connection 6 NETWORK RJ45 jack (female) Optional Ethernet connection # Device Functional Description Composite RF Rx Connector (1~2) Composite RF Tx Connector (1~2) RF Tx Connector (700~2600MHz) 5-band RF Tx Connector (1~4) Serial Port FIU FIU BIU Opreate Opreate Tx1 RCU TX2 TX2 TX1 OUT Tx700 OUT Tx850 Tx3 Tx190
MBSC-C RU Table 2Host Unit Indicator Description # Indicator 1 RUN 3.3 Status Description Green(Flashing) Normal system operation Red(Flashing) System fault detected Remote Node Description The Remote Node serves as the remote interface unit for the fiber optic mBSC system. It is comprised of a mounting bracket and enclosure for up to five single-band Remote Units (RUs) and a Fiber/Antenna combiner unit.
MBSC-C RU Figure 10Fiber CM-BTS/ANT Enclosure Outline 3.3.1.1 Primary Components The fiber CM-BTS enclosure interior layout, shown in Figure 11, is equipped to interface up to five bands (700MHz, 850MHz, 1900MHz, 2100MHz and 2600MHz). The enclosure includes weatherproof housing, mounting brackets, and internal multiplexer, duplexer, RF-optic transceiver, control unit and power supply unit elements.
MBSC-C RU 发无光 电源 RF OUT 收无光 RF-Optic Transceiver RF IN 580889640102-battery board OPTIC IN/OUT 锂电池 2600 2600 1800 2100 1700 RX 1900 TX A 850 850 700 700 Figure 11Fiber CM-BTS/ANT Interior Layout 3.3.1.1.1 Power Supply Module Power Supply Module provides stable power to fiber CM-BTS unit. Power Supply Module is supplied with 110/220V AC. 3.3.1.1.2 Multiplexer & Duplexer The multiplexer separates the various band frequencies respectively.
MBSC-C RU Table 3 RF-Optic Transceiver Interface # Port Device Description 1 RF OUT QMA\SMA female coaxial connector RF output 2 RF IN QMA\SMA female coaxial connector RF input 3 OPTIC IN/OUT E2000/APC Fiber interface (HU & RN) 4 --- DB9 female Power supply & monitoring Table 4 DB9 PINOUTS # PIN Definition 1 PIN1 NC Description 2 PIN2 GND 3 PIN3 VCC +12V DC 4 PIN4 TXD1/B1 Channel1: RS485-B1 5 PIN5 RXD1/A1 Channel1: RS485-A1 6 PIN6 RXD0/A0 Channel0: RS485-A0 7
MBSC-C RU RF signal to the service antenna. 3.3.1.4 Optical Port The fiber CM-BTS enclosure uses anE2000/APC type optical transceiver for inter-connecting the optical fiber. The transceiver supports single-mode (yellow) fiber. 3.3.1.5 Powering The fiber CM-BTS/ANT enclosure is equipped with a 4-wire AC power connector that provides a connection point for the AC power cable distributed from the power distribution junction box. The CM-BTS/ANT module is powered by 110/220V AC. 3.3.1.
MBSC-C RU RF Input Connector from Single-band BDA Unit 2100 TX_OUT B A RX_IN ANT ANT TX_OUT RX_IN VENT 700 OPERATE RX_IN A B TX_OUT TX_OUT ANT ANT 850 2600 RX_IN B 1900 LED Indicator ANT TX_OUT RX_IN DEBUG RF Inter-Connector to Single-band BDA Unit AC Local Debug AC 110/220V Power IN Serial Port FIBER Optical Connector Combiner Model FCM-CN-C Figure 12Fiber CM-BTS/ANT Enclosure User Interface 3.3.
MBSC-C RU Figure 13Single-band RU Enclosure 3.3.2.1 Primary Components 3.3.2.1.1 Multi-Carrier Power Amplifier (MCPA) Modules The MCPA Module is the heart of the mBSC RU Enclosure. The MCPA Module boosts the BTS forward link transmission signal. Operating on28VDC input, the MCPA Module produces 10W or 20 W composite RF power for each band (measured at output of the antenna combiner).
MBSC-C RU 3.3.2.2 Mounting The single-band RU enclosure is hanging-mounted on the mounting bracket. 3.3.2.3 RF Connection The RF signal connections with the single-band enclosure are supported through two SMA female coaxial connectors and one 7/16” DIN female connector. The two SMA female connectors are used for coaxial cable connection (RF jumper) of the Tx and Rx RF signals between the CM-BTS/ANT enclosure and the single-band RU enclosure.
MBSC-C RU Figure 14 Single-band RU Enclosure User Interface Table 8 Indicator Description # Indicator 1 RUN Status Description Green(Flashing) System operating normally Red(Flashing) System alarm 3.3.3 Power Supply Junction Box The power supply junction box provides power connection and distribution to each enclosure.
MBSC-C RU 3.3.4 Shroud& Bracket The Remote Node has a shroud cover for thermal protection. The shroud features are as below: Construction All in aluminum Corrosion protection to the entire cabinet Cabinet ingress protection to be IP53 Powder coat neutral beige Table 9Shroud Specification Mechanical Specification Description Material construction Aluminum 3-band unit: 16 kg (35.3 lbs) Shroud & bracket weight 5-bandunit: 26 kg (57.
MBSC-C RU Figure 16Remote Unit Shroud MBSC-C RU December 15, 2015 Page 22
MBSC-C RU 4 System Installation 4.1 Unpacking and Inspection Every mBSC-C component has been tested and calibrated at the factory. Unpack the mBSC-C components carefully after they arrive at the installation site. Open the wooden container and remove the foam padding. If the equipment is damaged: Immediately contact the transportation and notify them of the damage. A claim should be filed with the carrier once the extent of any damage is assessed.
MBSC-C RU The rack should be selected with adequate shelf space to accommodate the Host Unit equipment with adequate space for ventilation around each component The rack must be able to support the weight of the equipment to be installed The mBSC Remote unit is typically installed on the wall: The wall should be water-resistant, dry, non-caustic and without high-voltage power leaking. The wall’s bearing capacity is more than 136kg.
MBSC-C RU weight of all the equipment and be securely anchored. Installing the Host Unit in a room with sufficient air circulation is recommended as the maximum ambient temperature for Host Unit is 60°C. Use the following steps to install the Host Unit in the equipment rack: 1. The Host Unit is built with mounting bracket installed for 19” rack installation. Figure 17 Mounting Brackets for 19” Rack Installation 2. Position the host unit in the designated mounting space in the rack as shown below. 3.
MBSC-C RU 4.3.2 Cable Connections Note The NEC(National Electrical Code) does not allow signal wires to share the same conduit with power wires unless the signal cable’s voltage range is equal to the power wire’s voltage range. Avoid bundling signal cable and grounding cable/power cable, keep them separate. The power cable and RF inter-connection cables are supplied. Check open and short circuits before installing the power cable. 4.3.2.1 Grounding The host unit must be grounded.
MBSC-C RU Figure 20 Grounded Host Unit 4. Tighten the screw, making sure the cable is securely connected before moving to the next phase of the installation. 4.3.2.2 Coaxial Cable Connections The RF interface between the Host Unit and the BTS (or POI) is supported through Tx/Rx QMA female connectors mounted on the Host Unit front panel. The Host Unit should be mounted as close as possible to the BTS to minimize RF cable losses.
MBSC-C RU Figure 21 BTS QMA Coaxial Cable Connection 5. Dress and secure cable at the Host Unit. 6. The RF inter-connection between the BIU and the FIU uses QMA to QMA jumper cables supplied with the mBSC-C equipment. 4.3.2.3 Optical Connections The optical interface between the Host Unit and the Remote Node is supported by an E2000/APC optical adapter which is mounted on the FIU front panel. A single mode, E2000/APC patch cord may be used to connect the Host Unit with Remote Node.
MBSC-C RU 5. Connect optical fiber to the Remote Node CM-BTS fiber port. 4.3.2.4 DC Power Connection The DC power interface of the Host Unit is provided by a 2-wire termination located on the HU rear panel. The DC termination provides a connection point for the power cord which is provided separately with the HU. Use the following procedure to install the DC power: 1. Locate the 48 VDC power cord which is provided separately with the HU. 2.
MBSC-C RU Figure 25IP Connection for local GUI Control 4.3.2.6 Modem Connection (optional) For remote operation, the mBSC-C system provides a serial modem connecter for external modem connection. To connect a modem with the host unit: 1. Route the modem cable between the modem and host unit. 2. Connect the modem cable with a DB9 female plug to the modem socket on the host unit’s RCU front panel. Figure 26Modem Port on RCU (DB9 male) 3. 4.
MBSC-C RU 1) Follow the procedures provided by the manufacturer when installing the remote unit. Do not install the unit in a place or in a manner that does not meet the manufacturer’s specifications. 2) Use the mounting hardware supplied by the manufacturer. If non-standard mounting hardware is used it must meet the requirements for mounting the unit as specified by the manufacturer. 3) Safety measures for lifting heavy materials should be followed to prvent injury.
MBSC-C RU 4.4.1.2 Mount the Remote Unit to the Mounting Panel Use the following steps for a standard remote unit to mounting panel: 1. Grasp the CM-BTS/ANT or Single-band RU enclosure at the top and bottom of the casing and carefully slide the top two hooks onto the mounting panel, followed by the lower hooks and allow the enclosure to slide down into place. 2.
MBSC-C RU Figure 29Attach the Shroud 4.4.2 Cable Connections Attention All the power switches must be switched off before cable installation. Avoid bundling signal cable and grounding cable/power cable, keep them separate. The power cable and RF inter-connection cables are supplied. Check open and short circuits before installing the power cable. 4.4.2.
MBSC-C RU Use the following procedure to connect the grounding wire to the cabinet and route the ground wire to an approved earth ground source: 1. Obtain a length of #4 AWG(25mm2) and resistance lower than 0.5Ω insulated green or yellow-green colored copper wire as grounding wire. 2. Terminate one end of the wire with a ring terminal. Figure 31 Grounding Wire the Ring Terminal 3. Secure the ring end of the wire to the ground stud. 4.
MBSC-C RU SMA Coaxial Cable Inter-connection on Fiber CM-BTS/ANT Enclosure SMA Coaxial Cable Inter-connection on Single-band Enclosure Figure 32RFInter-Connect between Fiber CM-BTS and Single-band RU 4.4.2.2.2 Single-band RU to CM-ANT To connect the coaxial cable between CM-ANT enclosure and single-band enclosure: 1. Obtain the required lengths of high performance, flexible, low loss 50Ω coaxial communication cable for all coaxial connections. 2.
MBSC-C RU DIN(7/16) Coaxial Cable Inter-connection on Single-band RU Enclosure N Type Coaxial Cable Inter-connection on CM-ANT Enclosure Figure 33RFInter-Connect between CM-ANT and Single-band RU 4.4.2.3 Antenna Cable Connection Route a coaxial antenna cable from the antenna to the equipment enclosure. The cable must be terminated with the proper connector for connecting to the antenna port on the chassis of CM-BTS/ANT enclosure. Below is the procedure to install the antenna cable: 1.
MBSC-C RU Use the following steps to connect the optical fibers: 1. Obtain one patch cord which is sufficient length to reach from fiber optic distribution box to fiber CM-BTS chassis. 2. Remove the dust caps the optical ports and from the patch cord connectors that will be connected. 3. Clean each patch cord connector following the patch cord supplier’s recommendation. 4. Screw-thread secures the patch cord connector into the optical port on the fiber optic distribution box.
MBSC-C RU Figure 35 AC Power Junction Box 2. Terminate the AC power supply wires that are required between the AC junction box and the local source of AC power. 3. For each enclosure (CM-BTS and RU) connect the short AC power cable from the AC Junction Box to the enclosure AC power port labeled “AC” 4. Tighten the coupling nut. Figure 364-Pin AC Power Connector 4.
MBSC-C RU 4.5.
MBSC-C RU 4.5.
MBSC-C RU 4.5.3 mBSC-C Inspection Checklist Table 10mBSC Unit Inspection Item Description 1 Stable and normal. 2 4 Properly fastened Screws and nuts screwed tightly, without missing flat washers and spring washers. Spring washers must be on the top of flat washers. No cable damage. 5 Clean, no smudges or dust. 6 Connections between metallic parts must be reliable, to assure reliable electric connectivity. 3 4.5.
MBSC-C RU Test Start HU installation & configuration HU RF signal input/output level adjustment Reserve path signal level evaluation HU optical power level test RU installation, cable & antenna connection No RU VSWR is normal? Check connection of cable & antenna Yes RU optical power lever is normal? Yes RU power on Reserve path pre-attenuation RU forward path adjustment RU reverse path adjustment Forward path and reserve path balance adjustment RU parameter configuration No RU signal effe
MBSC-C RU 5 System Monitoring &Configuration 5.1 Accessing EMS Local GUI The MBSC1900-040-RU system supports local configuration through a web-based Element Management System (EMS) graphical user interface (GUI) accessed through the RJ-45 and USB ports of the Host Unit RCU card. The EMS local GUI is a web-based application supported by standard web-browsers. Microsoft Internet Explorer® is recommended. System configuration and monitoring can also be performed from a remote EMS Server.
MBSC-C RU 5.1.2 Using USB Port Access to the EMS Local GUI through a standard USB connection is also available at both the Host Unit RCU card, and the CM-BTS enclosure of the Remote Node. The EMS Local GUI has a fixed IP address assignment when accessed through the USB port – it is set at the factory and cannot be changed. Steps: 1. Install the USB-Ethernet driver on the laptop/computer. The laptop/computer must be connected to the internet in order for the drivers to be automatically installed. 2.
MBSC-C RU 5.1.3 Login to EMS Local GUI Access the EMS Local GUI as follows: 1. Type the appropriate URL into the browser (e.g. http://192.168.5.220 for USB port). The dialog box shown in Figure 40– EMS Local GUI Login will appear. 2. User name: Type in the user name provided for you to access the system (default = “admin”) 3. Password: Type in the password provided for you to access the system (default = “”) 4.
MBSC-C RU 5.2 Navigating the EMS Local GUI When logged in to the EMS Local GUI, it displays the main page as shown in Figure 41. On the left side of the main page the topology of the mBSC-C system you are connected to is automatically displayed. This includes the Host Unit and the fiber attached Remote Nodes. On the right side is a floating window for displaying system component properties.
MBSC-C RU Figure 42- Main Page Summary View 5.2.1 Topology Tool Bar Various functions can be performed by clicking on the following icons. Table 13 Tool Bar Functions Tool Function Zoom in – Zooms in the topology diagram Zoom out – Zooms out the topology diagram Reset – Resets the topology view to default Overview – Resizes topology diagram to full screen Re-discover Re-Discovery – Constructs the topology upon initial local GUI login or changes in system configuration.
MBSC-C RU 5.2.2 Upgrade/Password Functions The links in the upper right corner contain the Upgrade, Password, and Help functions. Table 14 General GUI Tools Function Description Upgrade Perform a component Password Change the login password for current User Help 5.3 software upgrade System information and Help Installation & Configuration 5.3.1 Network & Communications 5.3.1.
MBSC-C RU Figure 43- RCU Component View 5.3.1.2 Assign IP Address for Remote EMS Server The mBSC-C system can also be managed from a remote EMS Server. To communicate with the remote server the IP address must be reachable form the local network, and must be configured within the RCU. To assign the IP address of the remote EMS Server: 1. Click on the RCU in the topology diagram and the component window will pop up on the right as shown in Figure 43- RCU Component View.
MBSC-C RU 2. Locate the required fields and set the appropriate values. a.NMS IP Address(IP4): enter the value assigned to the remote EMS Server b.NMS IP Port: enter port (default value is 8008) c. Equipment Default gateway: enter assigned gateway 3. Click Save 5.3.1.3 Assign HU Site Name/Number Users can create a name or a site number for the Host Unit.
MBSC-C RU Figure 44- Main Page Equipment Status Check the current status of each component as follows: 1. Update Topology view: a.Click Re-Discover: If new equipment (eg. Remote Node) has been added but does not yet show up in the topology view b.Click Refresh: If all components appear and to ensure current status is reflected 2. Review HU status indicators: a.All OK: Component LEDs in the HU shelf indicate green state b.Error/alarm: Component LEDs are flashing red, and a red “balloon” is present 3.
MBSC-C RU a.Nominal value is: +4.0 dBm +/-1.5 dB (impacted by temperature) 3. Optical Transceiver 1 Rx Power: the input power of the FIU 1 from the fiber. a.Acceptable range is:-15 dBm ~ +6dBm (impacted by fiber loss) 4. Optical Transceiver 2Tx Power: the output power of the FIU 2 to the fiber. a.Nominal value is: +4.0 dBm +/-1.5 dB (impacted by temperature) 5. Optical Transceiver 2 Rx Power: the input power of the FIU 2 from the fiber. a.
MBSC-C RU Check optical power levels at the Remote Node as follows: 1. Click on the CM in the topology diagram and the component window will pop up on the right as shown in Figure 46- CM Optical Power Levels. 2. Optical Transceiver 1 Tx Power: the output power of the CM 1 to the fiber. a.Nominal value is: +4.0 dBm +/-1.5 dB (impacted by temperature) 3. Optical Transceiver 1 Rx Power: the input power of the CM from the fiber. a.
MBSC-C RU 5.3.2.3 Verify Software Versions Click on Help in the upper right corner to verify the software version of the EMS Local GUI.
MBSC-C RU Figure 48 - Component Software Versions 5.3.3 Alarms 5.3.3.1 Optical Link Alarms Optical Link alarms at the FIU will occur for various reasons: 1. Remote Node not in service: The Remote Node connected to the specific FIU link is not yet powered up 2. Remote Node malfunctioning: connected to the specific FIU link is in an error state 3. Fiber issue: The fiber link between the specific FIU and the Remote Node has excessive loss (possibly due to breakage or to dirty optical connectors) 4.
MBSC-C RU a.The FIU supports two fiber connections: 1C indicates 1 alarm condition exists, 2C indicates 2 alarm conditions exist 3. There are no remote Nodes connected to the FIU in slot 3, and no fiber are extending from the FIU a.In this case the HU recognizes there are no Remote Nodes connected 4. The FIU in Slot 6 is showing green operational status a.No alarms are being reported, yet there is only one fiber extending from the FIU in connection F1 b.
MBSC-C RU b.To disable alarms clear the box 4. Click Save 5.3.3.2 Enable SNMP alarms Support for SNMP in the mBSC-C system is provided through the remote EMS Server. For more information about support for SNMP please refer to UM-MBSC-C-EMS. 5.4 System Tuning 5.4.1 BTS Signal Conditioning The interface from the operator BTS equipment to the MBSC1900-040-RU is via simplex RF connections to the BIU. The nominal downlink input to the BIU (TXin) is 0 dBm±1dB (range: -10dBm to +10dBm).
MBSC-C RU Note that the system will report an error message if the input value is out of range.
MBSC-C RU 5.4.2.2 Adjust RU Downlink Attenuator Adjust the RU downlink value for the specific RU / frequency band as follows: 1. Click on the RU in the topology diagram and the component window will pops up on the right as shown in Figure 51 - RU Attenuator. 2. Downlink Attenuation Value: Input the appropriate values (0dB – 25dB range) 3.
MBSC-C RU Figure 51 - RU Attenuator 5.4.3 Set Uplink Gain It may be necessary to adjust the Uplink gain of the mBSC-C system in order to achieve a balanced forward and reverse link, or to adjust for other conditions (antenna placement, dynamic range requirements, propagation characteristics at different bands, specific RF design). The MBSC1900-040-RU provides two points of adjustment for uplink gain: 1. Software controlled attenuator for each band in the BIU 2.
MBSC-C RU The determination of appropriate values for these parameters is outside the scope of this document. 5.4.3.1 Adjust BIU Uplink Attenuator Adjust the BIU uplink attenuation value for each frequency band as follows: 1. Click on the BIU in the topology diagram and the component window will pops up on the right as shown in Figure 50 - BIU Attenuator. 2. Uplink Attenuation Value (XXX MHz): Input the appropriate value for each frequency band (0dB – 25dB range) 3. Click Save 5.4.3.
MBSC-C RU 5.4.4 Link Verification The MBSC1900-040-RU system is equipped with features that enable the downlink and uplink link to be fine-tuned from the head-end location using common test equipment (RF signal generator and RF power detector). 5.4.4.1 Verify End-to-End Downlink Gain Each RU in the remote node is equipped with a calibrated Downlink Power Detector which will display the average power at the output of the RU.
MBSC-C RU Figure 52 – Up/Down Link Verification 5.4.4.2 Using Uplink Pilot Tone Generator Each RU in the remote node is equipped with an Uplink Pilot Tone Generator which will generate a CW RF tone out of the RU back towards the FIU and BIU.. By measuring the RF power at the RXout port of the BIU the end-to-end uplink system gain can be verified, and band-to-band / node-to-node, variations calibrated without additional test equipment required at the Remote Node.
MBSC-C RU b.Variations in filtering, amplifiers, and optical loss may cause the actual system gain to vary +/6 dB. All paths can be normalized by adjusting uplink attenuation settings in the BIU. 3. This procedure should be repeated for each frequency band in the system Note: Uplink Pilot Frequency Switch should be off during normal operations. This function is intended for testing, verifying, and adjusting uplink performance and will interfere with normal operation of the system. 5.
MBSC-C RU 5.5.1.2 Remote Node In the case of a Remote Node malfunction, the affected unit will also be marked with a red popup “alarm indicator”. Figure 54 - Remote Node Alarm Status illustrates a condition where both fans of an RU are not working (power cable disconnected): 1. The alarm indicator beside the affected RU in the topology view displays “2C” 2. Additional alarm status is shown in the lower right section of the RU component window.
MBSC-C RU 5.5.2 System Alarms The MBSC1900-040-RU provides alarm indications for equipment malfunctions or for conditions that place the out of standard operating range (such as over-power). A complete list of alarm events, and the originating product module, is provided in Table 15 System Alarms. These events are enabled by default factory settings, but can be disabled if desired.
MBSC-C RU Alarm stage 13 427100 PA Lower Gain Alarm Low gain condition (< 10dB) detected 14 415510 PA Loop Alarm Error correction loop unlocked 15 400310 PA Voltage Alarm PA voltage outside range 16 401300 PA Fault Alarm Internal PA fault detected 401000 Uplink LNA Fault Alarm Internal LNA fault detected 408301 Fan 1 Alarm Fan 1 is non-functioning (low current) 408302 Fan 2 Alarm Fan 2 is non-functioning (low current) 17 SSM 18 FAN 19 5.
MBSC-C RU 6 Maintenance Note: Check your sales order and equipment warranty before attempting to service or repair the mBSC-C system. Breaking the seals on equipment under warranty will void the warranty. Do not return equipment for warranty or repair until proper shipping instructions are received from the factory. 6.1 Electrostatic Discharge Precautions The mBSC-C system modules contain assemblies and components which are sensitive to electrostatic discharge (ESD).
MBSC-C RU The mBSC-C Host Unit components are equipped with multiple LED indicators that show status and alarms by displaying Green, Red or Off. Detailed descriptions of the LED indicators are provided respectively in section 3.2.7Host Unit Interface. The NMS software provides detailed alarm information which includes module level faults, circuit faults and measured value faults such as door, RF power and temperature. 6.
MBSC-C RU 6.4.1 Host Unit Trouble Shooting Is the HU shelf grounded? No Check the grounding connection and connect the ground cable to the HU No Check the power cable connection. Check the power supply connection. Check the PSU switch. No Check for pin connector damage on the BIU. If undamaged, reseat the board. Uninstall the BIU and re-insert the BIU into the HU slot. No Spare BIU available? No Check for pin connector damage on the FIU. If undamaged, reseat the board.
MBSC-C RU 6.4.2 Remote Unit Trouble Shooting LED on? No • • • Check power switch Check mains cabling Check mains power • Check the fiber cable connection on the fiber CM-BTS enclosure Check that the HU is installed and power is on. Check the fiber cable connection on the HU.
MBSC-C RU 7 Terms, Acronyms & Abbreviations Table 17 Terms, Acronyms and Abbreviations Terms/Acronyms/Abbreviation Definition ANT Antenna AWG American Wire Gauge BTS Base Transceiver Station or Base Transceiver System C° Degree Celsius COM Serial Communication Port CQT Call Quality Test dB Decibels dBm Power measurement referenced to the specific power level of one milli watt DCS Digital Cellular System DIN DL Deutsches Insitut für Normung eV (German standardsinstitution) German stand
MBSC-C RU Technical Parameter: Frequency Range Downlink 728MHz~746MHz/746MHz~757MHz Uplink 698MHz~716MHz/776MHz~787MHz Operating Bandwidth 18MHz/11MHz Multiple Carrier Supported 1 Channel Spacing(s) LTE:1.4MHz, 3MHz, 5MHz, 10MHz / Bandwidth(s) Maximun RF Output Power Downlink: 46.31dBm(For 40W); 43.37dBm(For 20W);/ 46.25dBm(For 40W); 43.35Bm(For 20W); Uplink: 15.34dBm(For 40W); 15.38dBm(For 20W)./ 15.35dBm(For 40W); 15.28dBm(For 20W); Max Gain Type of modulation and Downlink: 62.41dB/62.
MBSC-C RU Cypress, CA 90630 We appreciate your comments. For US and Canadian installations: FCC RF exposure compliance requires the following antenna installation and device operation configurations be satisfied: A separation distance of at least 9 meters must be maintained between the antenna of this device and all persons. RF exposure compliance may need to be addressed at the time of licensing, as required by the responsible FCC Bureau(s), including antenna co-location requirements of 1.1307(b)(3). §2.
