Nortel BTR 2400 Installation Manual
Nortel BTR 2400 Installation Manual

Nortel BTR 2400 Installation Manual

Outdoor microwave transceiver

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411-1333-200
Reunion
BTR 2400
Outdoor Microwave Transceiver
Installation Guide
Release 1.1
July 1998

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Summary of Contents for Nortel BTR 2400

  • Page 1 411-1333-200 Reunion BTR 2400 Outdoor Microwave Transceiver Installation Guide Release 1.1 July 1998...
  • Page 3 Reunion BTR 2400 Outdoor Microwave Transceiver Installation Guide Document number: 411-1333-200 Product release: Release 1.1 Document version: Preliminary Date: July 1998 Copyright Country of printing Confidentiality Legal statements Trademarks © 1998 Northern Telecom Northern Telecom Ltd., all rights reserved Printed in Canada...
  • Page 5: Publication History

    Publication history July 1998 • Initial preliminary release of the document Reunion BTR 2400 Installation Guide...
  • Page 6 vi Publication history 411-1333-200 Preliminary July 1998...
  • Page 7: About This Guide

    The BTR 2400 is one of the RF (Radio Frequency) products that constitute a Nortel Reunion product line. The associated products include the following types of cell site equipment: •...
  • Page 8: Organization

    • Reunion Safety Standards provide a quick review of general safety guidelines. • Installing the BTR 2400 explains how to physically install the transceiver. • BTR 2400 Maintenance describes basic maintenance procedures to ensure that the transceiver is operating correctly.
  • Page 9: Documents To Fit Your Needs

    Documents to fit Your Needs The BTR 2400 Installation Guide is designed to provide complete procedural and technical information needed to install, manage and operate this equipment. Nortel Broadband Wireless Access Customer Documentation and Training’s goal is to furnish concise, efficient and effective documentation that provides...
  • Page 10: Documentation Suite

    Reunion System Overview, 411-1343-010 Reunion System Administration Guide, 411-1343-011 Reunion Network Node Equipment Installation Guide, 411-1313-200 Reunion NIU 6050 Network Interface Unit Installation Guide, 411-1323-200 Reunion BTR 2400 Outdoor Microwave Transceiver Installation Guide, 411-1333-200 Reunion CTR 2400 Outdoor Microwave Transceiver Installation Guide, 411-1333-201...
  • Page 11: Table Of Contents

    Documents to fit Your Needs ix Documentation Suite x Contents xi BTR 2400 Release 1.1 Product Overview 1-1 How the BTR 2400 Works 1-2 BTR 2400 Specification 1-4 BTR 2400 Component Descriptions 1-6 Diplexer / Power Supply 1-6 Mixer 1-6...
  • Page 12 Grounding 1-22 BTR 2400 Diagnostic Reference Chart 1-23 List of terms 411-1333-200 Preliminary July 1998...
  • Page 13: Btr 2400 Release 1.1

    Reunion’s point-to- multipoint system. The BTR 2400 transceiver is mounted on a pole or a building. It features a small size and low noise characteristics. The combination of digital modulation and low-loss mounting results in an efficient and low-cost installation.
  • Page 14: How The Btr 2400 Works

    1-2 BTR 2400 Release 1.1 Figure 1-1 BTR 2400 Block Diagram Diplexer/PS IF/PS Input TX Filter P. Amp 15 VDC Antenna Mixer LO Test Port Mixer RX Filter IF Test Port To RSM 9016 Remote Monitor IF Output IF AMP...
  • Page 15 IF signals. The IF amplifier’s output is connected to the IF (RX) output port. 8. The remote monitor unit is monitoring the BTR 2400 working status, (temperature, RF output power, power supply voltage and local oscillator status).
  • Page 16: Btr 2400 Specification

    1-4 BTR 2400 Release 1.1 BTR 2400 Specification Table 1: BTR 2400 Technical Specifications IF Input RF Output Frequency Range 450-650 MHz 24.25-24.45 GHz P-Amp Output Level (P1) >+30 dBm P-Amp Output Level (IP3) > +38 dBm Input Impedance 50 Ohms...
  • Page 17 BTR 2400 Release 1.1 1-5 Antenna Frequency 24.25-25.25 GHz Gain 10-30 dBi Input/output microwave connector WR-42 for the antenna Mounting Flange Orientation 45° Mounted on transceiver housing WR-28 flange Size (Height x Weight x Depth) 6" x 3" x 12"...
  • Page 18: Btr 2400 Component Descriptions

    Mixer The BTR 2400 uses a third harmonic mixer. The mixer uses a 8.3 GHz local oscillator (LO) signal to convert the IF input signals to the 24.25-25.45 GHz microwave frequency band. The same LO is used to downconvert the incoming microwave signals to the receive IF frequency band.
  • Page 19: Low Noise Amplifier

    Remote Monitor The remote monitor unit provides an interface for remotely monitoring the BTR 2400. The unit communicates with the RSM 9016 by way of a shielded twisted pair wire cable. An operator can remotely measure and monitor RF output power (0 to 30 dBm), DRO phase voltage (0 to 15 volts), DRO phase lock alarm (0, 1), internal temperature (-40 to +80°C) and power supply...
  • Page 20: Pre-Installation

    Failure to prevent unauthorized user access invalidates the equipment warranty. Unpacking Shipment Use the following steps to unpack and inspect the shipment of Nortel Broadband Wireless Access equipment: 1. Copy adequate inventory forms 2.
  • Page 21: Reunion Safety Standards

    BTR 2400 Release 1.1 1-9 Reunion Safety Standards Safety and safety considerations are important while using Nortel Broadband Wireless Access equipment. The following information is provided to assist you in establishing appropriate safety practices. Safety Disclaimer The safety standards discussed in this guide cannot address all safety problems associated with their use or all applicable regulatory requirements.
  • Page 22: Installing The Btr 2400

    BTR 2400 to the pole. Remember that you need to adjust the polarity and alignment of the associated CTR 2400s if you adjust the BTR 2400’s polarity and alignment. 1. Remove the eight (8) socket head cap screws (# 8-32 UNC) on the antenna flange.
  • Page 23: Installing The Tower Equipment

    4. Ensure connectors are facing down. 5. Install the BTR 2400 so that the fin array (heat sink) is positioned away from external barriers to allow heat dissipation through natural convection and radiation. See Figures 1-4 and 1-14.
  • Page 24: Installing Indoor Equipment

    ATM cells for wireless transport, while the SDMs interface RF to digital at the base station and demodulates the QAM signal. Install the indoor equipment associated with the BTR 2400 microwave transceiver as follows: 1. Connect the telemetry cable from the RPE 9000’s telemetry connector to the RSM 9016.
  • Page 25 BTR 2400 Release 1.1 1-13 Figure 1-3 BTR 2400 Side View Antenna Flange Screw Scews to hold lens Lens Antenna Center of Gravity Remove bottom screw for drainage Mount Pole Connectors Reunion BTR 2400 Installation Guide...
  • Page 26 1-14 BTR 2400 Release 1.1 Figure 1-4 The BTR 2400 Bottom View Antenna Flange Fin Array/Heat Sink Screws to hold lens Antenna Center of Gravity Remove bottom screw for drainage VHF Test Port DRO Test Port TX/PS Input connect to N Type...
  • Page 27 BTR 2400 Release 1.1 1-15 Figure 1-5 BTR 2400 Mounted to a Pole Center of Gravity Screw Brackets Antenna BTR 2400 Mount Pole Connectors Reunion BTR 2400 Installation Guide...
  • Page 28 1-16 BTR 2400 Release 1.1 Figure 1-6 BTR 2400-Adjustment Above Horizon Antenna 7° Mount Pole Figure 1-7 BTR 2400-Adjustment Below Horizon Antenna 23° Mount Pole 411-1333-200 Preliminary July 1998...
  • Page 29 BTR 2400 Release 1.1 1-17 Figure 1-8 BTR 2400-Antenna Polarity Side View BTR 2400 Brackets Antenna Figure 1-9 Antenna Polarity BTR 2400 Brackets Antenna Reunion BTR 2400 Installation Guide...
  • Page 30 1-18 BTR 2400 Release 1.1 Figure 1-10 Photographs of BTR 2400 Model Side View Side View Fin Array Front View showing Antenna 411-1333-200 Preliminary July 1998...
  • Page 31 BTR 2400 Release 1.1 1-19 Figure 1-11 BTR 2400 Prototype showing antenna Connectors Antenna Figure 1-12 BTR 2400 Brackets Brackets attached to BTR 2400 Reunion BTR 2400 Installation Guide...
  • Page 32 1-20 BTR 2400 Release 1.1 Figure 1-13 BTR 2400 Connectors -Bottom View Fin Array TX/PS Input VHF Test Port DRO Test Port RX IF Output Saddle Bracket Telemetry Connector Figure 1-14 BTR 2400 Fin Array Fin array (heat sink) Connectors...
  • Page 33 BTR 2400 Release 1.1 1-21 Figure 1-15BTR 2400 Antenna Flange Fin array (heat sink) Flange Dowel Pin Hole Dowel Pin Hole Connectors Antenna Mounting Hole Pole Bracket Figure 1-16 BTR 2400 Radio Flange Fin array (heat sink) Antenna Mounting Hole...
  • Page 34: Btr 2400 Maintenance

    Grounding Reunion RF equipment is critical to ensure proper system operation, as well as protection of personnel and equipment. The BTR 2400 does not have a ‘ground point or stud.’ Its mounting to the pole serves as the ‘ground.’ Also, the cables are ‘shielded’ or armored, but do not have a ground point/ stud.
  • Page 35: Btr 2400 Diagnostic Reference Chart

    Check main fuse power b. Check cable connections If you detect any problem during the electrical and mechanical checks, contact Nortel Broadband Wireless Access so that action can be taken to rectify the problem. Note: Warranty void if seal is opened. This means do not attempt to remove cover.
  • Page 36 1-24 BTR 2400 Release 1.1 411-1333-200 Preliminary July 1998...
  • Page 37: List Of Terms

    Alternating Current American Wire Gauge DBMS Digital Broadband Microwave System Direct Current Dielectric Resonance Oscillator Electronic Industries Association Electrostatic Discharge Federal Communications Commission Industry Canada Intermediate Frequency kilohertz, one thousand hertz or cycles per second Reunion BTR 2400 Installation Guide...
  • Page 38 2-2 List of terms Local Oscillator Low Noise Amplifier Low Noise Block Downconverter MegaHertz, one million hertz or cycles per second Network Interface Unit OCXO Oven-Controlled Crystal Oscillator Power Amplifier Power Supply Quadrature Amplitude Modulation, which entails modulating frequency Radio Frequency Radio Power Extractor Redundancy Switching Matrix RSM 9016/9116...
  • Page 39 List of terms 2-3 TCXO Temperature Compensated Crystal Oscillator Voltage Alternating Current Voltage Direct Current (Volts Direct Current) Very High Frequency Reunion BTR 2400 Installation Guide...
  • Page 40 2-4 List of terms 411-1333-200 Preliminary July 1998...
  • Page 41 Family Product Manual Contacts Copyright Confidentiality Legal statements DocInfo...
  • Page 42 Reunion BTR 2400 Installation Guide Nortel Broadband Wireless Access 37 Stevenson Road Winnipeg, Manitoba R3H 0H9 Phone: 1-800-822-6355 / Fax: 204-631-2475 1-800-4-NORTEL (1-800-466-7835) http://www.nortel.com © 1998 Northern Telecom Northern Telecom Ltd., all rights reserved NORTHERN TELECOM CONFIDENTIAL: The information contained in this document is the property of Northern Telecom.

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