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: •...
• 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.
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...
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...
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Grounding 1-22 BTR 2400 Diagnostic Reference Chart 1-23 List of terms 411-1333-200 Preliminary July 1998...
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.
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...
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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).
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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"...
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.
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...
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.
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.
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.
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.
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.
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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...
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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...
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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...
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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...
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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...
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.
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.
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...
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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...
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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...
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2-4 List of terms 411-1333-200 Preliminary July 1998...