F8I-DLC0802ADigivance 800 MHz 20 Watts System

Preliminary ADCP-75-150 Preliminary Issue A March 2003 1256380 Rev A Digivance™ 800 MHz 20 Watt System Installation and Operation Manual 18641-A FCC ID: F8I-DLC0802A User Manual - Part 1 ADCP-75-150 Preliminary Issue A March 2003 1256380 Rev A Digivance™ 800 MHz 20 Watt System Installation and Operation Manual ADCP-75-150 • Preliminary Issue A • March 2003 • Preface Page ii COPYRIGHT © 2003, ADC Telecommunications, Inc. All Rights Reserved Printed in the U.S.A. REVISION HISTORY TRADEMARK INFORMATION ADC and PowerWorx are registered trademarks of ADC Telecommunications, Inc. Digivance is a trademark of ADC Telecommunications, Inc. Procomm Plus is a registered trademark of Quarterdeck Corporation. DISCLAIMER OF LIABILITY Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of liability applies to all products, publications and services during and after the warranty period. This publication may be verified at any time by contacting ADC’s Tec h ni ca l Assistance Center at 1-800-366-3891, extension 73475 (in U.S.A. or Canada) or 952-917-3475 (outside U.S.A. and Canada), or by e-mail to [email protected] ISSUEDATEREASON FOR CHANGE A03/2003Original issue. ADC Telecommunications, Inc. P.O. Box 1101, Minneapolis, Minnesota 55440-1101 In U.S.A. and Canada: 1-800-366-3891 Outside U.S.A. and Canada: (952) 938-8080 Fax: (952) 917-1717 ADCP-75-150 • Preliminary Issue A • March 2003 • Preface Page iii © 2003, ADC Telecommunications, Inc. TABLE OF CONTENTS ContentPage ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii RELATED PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii ADMONISHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii GENERAL SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii STANDARDS CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix LIST OF ACRONYMS AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix SECTION 1: OVERVIEW 1INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 800 MHZ 20 WATT SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2.1Basic System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2.2Base Transceiver Station to Host Unit Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2.3 Handset Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2.4Local Service Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4 2.5Remote NOC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 3SYSTEM FUNCTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3.1Fiber Optic Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3.2Control and Monitoring Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3.3Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3.4Powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 3.5Equipment Mounting and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 SECTION 2: DESCRIPTION 1INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 2.1Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.2Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.3Fault Detection and Alarm Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.4RF Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4 2.5RF Signal Level Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.6Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.…

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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-15 © 2003, ADC Telecommunications, Inc. 5 SPECTRUM TRANSPORT MODULE The Spectrum Transport Module (STM), shown in Figure 2-7, provides the following basic functions: • Provides an RF interface (antenna ports) to the remote antenna(s). • Provides an optical interface to the HU. •Converts the digitized forward path optical signal to a digitized RF signal. •Converts the digitized RF signal to a composite RF signal. • Digitizes the reverse path composite RF signal. •Converts the digitized reverse path RF signal to a digitized optical signal. • Provides an RS-232 interface for connecting a local DEMS computer. • Transports alarm, control, and monitoring information via the optical link. • Provides AC power input. • Provides external alarm input. 5.1Primary Components The STM consists of an electronic circuit board assembly, power supply, duplexer, and fan assembly that are mounted within a powder-paint coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan unit, the electronic components are not user replaceable. The STM is designed for use within the RU outdoor cabinet or indoor mounting shelf. Except for the LPA interface connector, all controls, connectors, indicators, and switches are mounted on the STM front panel for easy access. A carrying handle is provided on the front of the STM to facilitate installation and transport. Table 2-3. Remote Unit Outdoor Mounting Shelf User Interface REF NO DEVICEFUNCTIONAL DESCRIPTION 1STM mounting slotProvides a mounting point for the STM module. 2LPA mounting slotProvides a mounting point for the LPA module. 3Grounding lugProvides a connection point for an external grounding cable. 4AC power cableProvides AC power to the STM. 5WDM mounting slotProvides a mounting point for the WDM module. 6CWDM mounting slotProvides a mounting point for the CWDM module. 7CWDM power cordProvides DC power to the CWDM module. FCC ID: F8I-DLC0802A User Manual - Part 2 ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-16 © 2003, ADC Telecommunications, Inc. Figure 2-7. Spectrum Transport Module 5.2Mounting The STM mounts within the RU outdoor cabinet or indoor mounting shelf. A runner on the bottom of the STM meshes with a track inside the cabinet/mounting shelf. The runner and track guide the STM into the installed position. The electrical interface between the STM and LPA is supported by a D-sub female connector located on the rear side of the STM. A corresponding D- sub male connector mounted at the rear of the RU cabinet/mounting shelf mates with the STM connector. Captive screws are provided for securing the STM in the installed position. 5.3Fault Detection and Alarm Reporting The STM detects and reports various faults including remote unit fault, optical fault, power fault, temperature fault, power amplifier fault, and external (door open) fault. Various front panel Light Emitting Diode (LED) indicators turn from green to red or yellow if a fault is detected. The status of the STM, the alarm state (major or minor), and other alarm information is summarized and reported over the optical fiber to the HU and also over the service interface. In addition, the alarm state of the HU is received over the optical fiber and reported to the service interface. This information may be accessed remotely through the NOC/NEM interface or locally through the DEMS software GUI. 5.4Antenna Cable Connection The antenna cable connections between the STM and the antenna are supported through one N- type female connector which carries both the forward and reverse path RF signals. When installed in the RU outdoor cabinet, the STM does not connect directly to the antenna but 18634-A ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-17 © 2003, ADC Telecommunications, Inc. instead connects to a lightning protector that is mounted on the bottom of the cabinet (see Section 3.6). A coaxial jumper cable is provided (included with the enclosure) for connecting the STM connector to the lightning protector. 5.5RF Signal Level Adjustment The STM is equipped with a digital attenuator for adjusting the signal level of the forward path RF output signal. The remote forward path attenuator adjusts the level of the output RF signal at the RU antenna port and will add from 0 to 31 dB of attenuation to the output signal level. The attenuator can be set in 1 dB increments. The attenuator is software controlled and is adjusted through the NOC/NEM interface or the DEMS software GUI. 5.6Optical Connection Fiber optic connections between the STM and the HU are supported through two SC-type optical connector ports. One port is used for connecting the forward path optical signal and the other port is used for connecting the primary reverse path optical signal. 5.7Service Interface Connection The service interface connection between the STM and a local laptop computer loaded with the DEMS software is supported by a single DB-9 female connector. The service interface connector provides an RS-232 DTE interface. The STM service interface connector supports local communications with both the STM and the corresponding HU. 5.8Powering The STM is powered by 120 or 240 Va c (50 or 60 Hz) power which is supplied through a three- conductor AC power cord. The power cord is provided with the RU outdoor cabinet or indoor mounting shelf. The power cord connects to an AC connector mounted on the STM front panel. A switch on the STM front panel provides AC power On/Off control. 5.9Cooling Continuous air-flow for cooling is provided by a single fan mounted on the rear side of the STM housing. An alarm is provided that indicates if a high temperature condition (>50º C/122º F) occurs. If the temperature falls below 32º F (0º C), the fan automatically shuts off. The fan may be field replaced if it fails. 5…

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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-27 © 2003, ADC Telecommunications, Inc. The NOC/NEM interface is a command line interface that is presented at an NOC terminal. The NOC/NEM interface is used for remote control and monitoring operations. The NOC/NEM interface consists of ASCII text strings that are input as SET or GET commands which are followed by the action or information required. A text string response is received from the specified system or systems to confirm the requested action or to report the requested information. Examples of several typical NOC-NEM interface commands and the responses received are shown in Figure 2-19. The NOC/NEM interface requires only a VT100 terminal/ emulator or a PC-type computer that is loaded with a communication software such as Procomm Plus. While primarily intended for use at the NOC, the NOC/NEM interface commands may also be input from the DEMS computer. Figure 2-19. NOC/NEM Interface Typical Commands 11 SPECIFICATIONS Refer to Ta b l e 2 - 6 for the Digivance 800 MHz 20 Watt System nominal specifications. All specifications apply after a five minute warm-up period. Table 2-6. 800 MHz 20 Watt System Nominal Specifications PARAMETERSPECIFICATIONREMARKS Optical - Host and Remote Unit Fiber type9/125, single-mode Number of fibers required Direct With WDM 2 1 The wavelength division multi- plexer (WDM) is an accessory. Forward path wavelength1550 nm Reverse path wavelength1310 nm FCC ID: F8I-DLC0802A User Manual - Part 3 ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-28 © 2003, ADC Telecommunications, Inc. Optical transmit power output Host Unit Remote Unit 0 dBm +2 dBm Optical budget25 dB For optical BER of 10 –6 Optical Receive Input–15 dBm Optical connectorsIndustry standard SCHost, remote, and WDM RF Forward Path - 800 MHz Bandwidth A band B band 11 and 1.5 MHz 10 and 2.5 MHz Frequency range A band B band 869–880 and 890–891.5 MHz 880–890 and 891.5–894 MHz Out-of-band emissions Primary Secondary (see Note 1) –13 dBm per 1 MHz bandwidth from 10 kHz to 20 GHz –98 dBm per 100 kHz from 824 to 849 MHz and from 1850 to 1910 MHz Gain of forward path (Host input to Remote antenna port) 80.5 dB at band center, room temperature, and 0 dB attenua- tion setting Includes power amplifier. Gain flatness Band flatness Channel flatness ± 1.5 dB across freq. range ±1 dB variation across any 1.25 MHz channel Gain variation± 3 dB over temp and unit-to- unit Out-of-band rejection–40 dB at > ±17.5 MHz from 881.5 MHz Propagation delay2.2 μsExcludes fiber delay Configurable propagation delay Range Step size Up to 63 μs 0.1μs Plus standard propagation delay Spurious In-band self generated Free dynamic range –13 dBm at remote output 60 dB at 30 kHz bandwidth Transmit peak-to-average10 dB Two-tone Intermodulation–55 dBc at remote outputTwo tones at 5 Wa tt s each CDMA Intermodulation 885 kHz to 1.25 MHz 1.25 to 1.98 MHz 1.98 to 2.25 MHz –45 dBc per 30 kHz –8 dBm per 30 kHz –55 dBc per 30 kHz Absolute level Table 2-6. 800 MHz 20 Watt System Nominal Specifications, continued PARAMETERSPECIFICATIONREMARKS ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-29 © 2003, ADC Telecommunications, Inc. Nominal composite RF input signal level –40 dBm at 0 dB attenuation –10 dBm at max. attenuation An input signal level of –40 dBm provides maximum output power Configurable input level Range Step size 30 dB 1 ± 0.5 dB ±10% of attenuation monotonic Composite RF Output power40.5 dBm (11 Wa tt s) at remote antenna port with –40 dBm input 20 Wa tt s at power amplifier out- put Configurable RF Output Range Step size 30 dB at remote unit 1 ±0.5 dB ±10% of attenuation monotonic Transmit path insertion loss2.5 dB RF Reverse Path - 800 MHz Bandwidth A band B band 11 and 1.5 MHz 10 and 2.5 MHz Frequency range A band B band 824–835 and 845–846.5 MHz 835–845 and 846.5–849 MHz In band spurs (caused by an indi- vidual out-of-band signal) –75 dBc (1 MHz to 20 GHz and > 10 MHz out-of-band) –120 dBc (1930 to 1990 MHz) –120 dBc (869 to 894 MHz)Required for dual band Propagation delay2.2 μsExcludes fiber delay Configurable propagation delay Range Step size Up to 63 μs 0.1μs Plus standard propagation delay Gain flatness Band flatness Channel flatness ±1.5 dB across frequency range ±1 dB variation across any 1.25 MHz channel Gain of reverse path Overall gain Gain variation 30 dB at band center at room temperature 3 dB over temperature ALC not invoked ALC not invoked Out-of-band rejection–40 dB at > ±17.5 MHz from 836.6 MHz ALC not invoked Spurious (in-band self gener- ated) –110 dBm referred to inputALC not invoked Intermodulation–62 dBc two tones at –50 dBm System noise figure9 dBALC not invoked Table 2-6. 800 MHz 20 Watt System Nominal Specifications, continued PARAMETERSPECIFICATIONREMARKS ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description Page 2-30 © 2003, ADC Telecommunications, Inc. Configurable RF output Range Step size 30 dB 1 ±0.5 dB ±10% of attenuation monotonic Blocking dynamic range70 dB Level limiting ALC threshold–40 dBm dB instantaneous Level limiting ALC range30 dB RF Forward and Reverse Path Modulation Accuracy Service/Mod Type/Parameter TDMA/n/4-DQSK/rms EVM GSM/GMSK/rms phase error EDGE/8PSK/rms EVM EIA-97D/CDMA/rho factor 7% 4% 7% .97% Physical/Environmental/ Electrical - Host Unit Dimensions (H×W×D) 3.5 × 17.2 × 15.3 inches (89 × 437 × 389 mm) Dimension for width does not include the mounting brackets which can be installed for either 19- or 23-inch racks. Mounting19- or 23-inch rackEIA or WECO Weight18 lbs. (8.2 kg) We at h er resistanceIndoor installation only Operating temperature0º to 50º C (32º to 122º F) Storage temperature–40º to 70º C (–40º to 158ºF) Humidity10% to 90%No condensation External alarm connectorScrew-type terminalsNO and NC relay contacts DC power connectorScrew-type terminal strip RF coaxial cable connectorsN-type (female) Service connectorD…

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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation Page 3-14 © 2003, ADC Telecommunications, Inc. Figure 3-12. Configuring CAN Connections with Multiple Host Units 9 SERVICE INTERFACE CONNECTION The service interface connection between the HU and the DEMS computer is supported by a single DB-9 female connector. The service connector provides an RS-232 DTE interface. A three meter long straight-through RS-232 interface cable is provided with the HU for connecting the DEMS computer to the HU. Use the following procedure to install the service interface cable: 1. Connect one end of the service interface cable (provided with HU) to the SERVICE port as shown in Figure 3-13. 2. Route the service interface cable to the DEMS computer and connect the free end of the cable to the computer’s RS-232 DCE port. Refer to the user manual provided with the computer to locate the required port. Figure 3-13. Service Interface Connection HOST UNIT 1HOST UNIT 2HOST UNIT 3 NET IN NET OUTNET IN NET OUTNET IN NET OUT 16900-B CONTROLLER AREA NETWORK INTERFACE CABLES TO NEXT HOST UNIT (NOTE: LAST HOST HAS NO CONNECTION AT NET OUT) 18659-A FCC ID: F8I-DLC0802A User Manual - Part 4 ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation Page 3-15 © 2003, ADC Telecommunications, Inc. 10 EXTERNAL ALARM SYSTEM CONNECTIONS The alarm interface between the HU and an external alarm system is supported by a six-terminal plug (with screw-type terminals) that connects to a receptacle mounted on the HU front panel. The terminal plug provides connections to normally open (NO) and normally closed (NC) dry type alarm contacts for both major and minor alarms. A category 3 or 5 cable is typically used to connect the HU to the external alarm system. Use the following procedure to install the alarm wiring and connect it to the HU: 1. Obtain the required length of category 3 or 5 cable. 2. Route the cable between the HU and the external alarm system (if not already routed) and then cut to the required length. Allow sufficient slack for dressing and organizing the cable at the HU. 3. Strip back the outer cable sheath and insulation to expose the wires at both ends of the cable and strip back 0.2 inches (5 mm) of insulation from each wire. 4. Connect the Major alarm wire pair to the MAJOR COM/NC or MAJOR COM/NO terminals (whichever is required by the external alarm system) on the HU alarm terminal connector (supplied with HU) as shown in Figure 3-14. Figure 3-14. External Alarm System Connections 5. Connect the Minor alarm wire pair to the MINOR COM/NC or MINOR COM/NO terminals (whichever is required by the external alarm system) on the HU alarm terminal connector (see Figure 3-14). 18660-A ALARM CONNECTOR MAJOR ALARM WIRES MINOR ALARM WIRES ALARM CONNECTOR DETAIL NO COM NC NO COM NC ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation Page 3-16 © 2003, ADC Telecommunications, Inc. 6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on the external alarm system. 7. Dress and secure cable per standard industry practice. 11 DC POWER CONNECTIONS The HU is powered by ± 24 or ± 48 Vdc power. The power is fed to the HU through a screw- down type terminal strip located on the rear side of the unit. Power to the HU must be supplied through a fuse panel such as the 20 position PowerWorx fuse panel (available separately) and the power must be protected with a 3 Amp GMT fuse. Use the following procedure to install the power wiring: 1. Obtain one pair of #18 AW G (1.00 mm) red and black insulated copper wire for use as the power wiring. 2. Terminate one end of each wire with a fork terminal as shown in Figure 3-15. 3. Connect the power wires to the power terminal strip at the rear of the HU. Figure 3-15. DC Power Connections 4. Route the free ends of the wires to the fuse panel and locate the terminals that will be used for the power feed. Refer to the user manual provided with the fuse panel for specific information. 5. Remove the fuse from the circuit that will power the HU. FORK TERMINALS #18 AWG (1.0mm) COPPER WIRE + (RED) – (BLACK) 16891-A ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation Page 3-17 © 2003, ADC Telecommunications, Inc. 6. Connect the power wires to the appropriate terminals as specified in the fuse panel user manual. 7. Dress and secure the power wiring at the fuse panel and the HU. The procedure for checking the voltage level and verifying that the HU is ready to power up is provided in SECTION 4: OPERATION. ADCP-75-150 • Preliminary Issue A • March 2003 • Section 3: Host Unit Installation Page 3-18 © 2003, ADC Telecommunications, Inc. Blank ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: Operation Page 4-1 © 2003, ADC Telecommunications, Inc. SECTION 4: OPERATION 1BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.1Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.2Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 2TURN-UP SYSTEM AND VERIFY OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 2.1Turn-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 2.2Verify/Download HU and RU System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 2.3Determine Forward Path Input Signal Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 2.4Enter Site Name and Site Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . …

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ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: Operation Page 4-6 © 2003, ADC Telecommunications, Inc. 2.2Verify/Download HU and RU System Software The HU’s and RU’s may require a system software download if they are not loaded with the current system software. Use the following procedure to check the version number of the system software and if necessary to download the current system software: 1. Click on the HOST Prg Load tab and on the REMOTE Prg Load tab. The HOST Prg Load display and the Remote Prg Load display will open within the DEMS main window as shown in Figure 4-3. Figure 4-3. HOST and REMOTE Prg Load Displays 2. Click on the HOST Select button (see Figure 4-3). The Select Control Program File window will open as shown in Figure 4-4. Browse until the folder where the Control Program files are located is selected and the software files are displayed in the window. Click to open Select Control Program window for HOST Click to start down- load to HOST. Click to start down- load to REMOTE. Click to open Select Control Program win- dow for REMOTE. Verify software version before starting download. Verify software version before starting download. FCC ID: F8I-DLC0802A User Manual - Part 5 ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: Operation Page 4-7 © 2003, ADC Telecommunications, Inc. Figure 4-4. Select Control Program File Window 3. Check the software version numbers shown in the Software Info section of the Prg Load display against the version numbers of the software files displayed in the Select Control Program File window. If files in the Select Control Program File window are a later version than those shown in the Prg Load display, proceed with the software download. If the version numbers shown in the Software Info section are the same as the version numbers of the files in the Select Control Program File window, the software download is not required. 4. Select the required file to download and click on the OK button. 5. Click on the HOST Load button (see Figure 4-3) to start the download. 6. Repeat steps 2 through 4 for the REMOTE. 2.3Determine Forward Path Input Signal Level The level of the composite RF input signal at the FORWARD RF IN port at the HU will vary depending on the type of BTS, the cable loss, the number of channels present, and the required forward path composite power. If maximum composite RF output is required, the signal level of the composite forward path RF signal at the HU forward path input must be adjusted to fall within a range of –10 to –40 dBm. If the signal level is not within this range, it must be adjusted to fall within this range through the use of an external attenuator capable of handling the BTS forward path output power. If using the Conditioning Panel or Duplexing Panel, refer to the Digivance 800 and 1900 MHz Interface Panels User Manual (ADCP-75-147) for the procedures for measuring and adjusting the input RF signal level at the HU. If connecting a single HU to a single BTS, use the following procedure to measure and adjust the input RF signal level at the HU: 1. Connect a spectrum analyzer or power meter to the forward path output port of the BTS. The required signal levels and test points are shown in Figure 4-5. Note: Check the input rating of the test equipment and the output rating of the BTS. To avoid burning out the spectrum analyzer or power meter, it may be necessary to insert a 30 dB 100W (or similar) attenuator between the BTS and test equipment. ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: Operation Page 4-8 © 2003, ADC Telecommunications, Inc. 2. If using a spectrum analyzer, proceed to step 3. If using a power meter, measure the composite signal power from the BTS and then proceed to step 5. 3. Measure the RF level of a single carrier, such as the control channel, in dBm. Make sure the resolution bandwidth of the spectrum analyzer is 30 kHz. Maximum power in any channel should not exceed 5W (+37 dB). 4. Calculate the total composite signal power from the BTS using the following formula: P tot = P c + 10Log N – (see Note) Where, P tot is the total composite power in dBm P c is the power per carrier in dBm as measured in step 3, and N is the total number of channels. 5. Determine the total cable loss that is imposed by the forward path coaxial cable that links the BTS to the HU and also any insertion loss imposed by splitters or combiners. 6. Subtract the total cable loss and any insertion losses from the total composite power calculated in step 4. 7. Subtract –25 (midpoint of the required range) from the value determined in step 6. The difference (which should be positive) equals the value of the external attenuator that is required to reduce the forward path signal level to fall within the required range. The following formula outlines the required calculations for steps 6 and 7: P tot – (Cable and insertion loss) – (–25) = Va l u e of external attenuator required 8. Select an attenuator that is as close to the value calculated in step 7 as possible. Select a value that will adjust the signal level of the composite input signal to fall within the specified range. 9. Install the external attenuator in the coaxial cable that is connected to the FORWARD RF IN port at the HU. 10. Subtract the value of the external attenuator used in step 9 from the total composite signal power (P tot ) and record the result. This value will be required when setting the attenuation of the HU’s internal forward attenuator. Note: If calculating the composite power for a CDMA system, reduce the initial result by 16.23 dBm Note: If the input signal level is already within the required range of –10 to –40 dBm, then no external attenuator is required. Caution: The Host Unit can be damaged if it is overdriven by the BTS. Always install an external protective attenuator at the Host Unit FORWARD RF IN port if the forward path composite input signal level is greater than –10 dBm. ADCP-75-150 • Preliminary Is…

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