HARRIS TR-0057-E Base station transceiver (700 MHz band) User Manual User Guide

HARRIS CORPORATION Base station transceiver (700 MHz band) User Guide

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User Guide

MANUAL P/N 900000034 REV B 1 User Guide Frequency Standard QFS-106 Model QFS-106 P/N 0150060XX Revision B August 2005 Brandywine Communications 2230 South Fairview Street Santa Ana, CA 92704 (714) 755 1050 (714) 755 0175 http://www.brandywinecomm.com
FCC PART 15, CLASS A VERIFICATION DOC. # FCC15AVER-B-7-01 REV. E 01/26/00 INFORMATION TO THE USER FOR CLASS A DIGITAL DEVICE WARNING: This equipment has been tested and found to comply with the limits for Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction's manual, may cause interference to radio communications. Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense. The user is cautioned that changes and modifications made to the equipment without approval of the manufacturer could void the user's authority to operate this equipment.
MANUAL P/N 900000034 REV B 3Revision History REVISION DATE COMMENTS NC 10-26-04 Original release of QFS-106 user guide. A 12-14-04 Revision of the rear panel and mechanical outline drawings. B 08-03-05 Revision of Section 3.1.
MANUAL P/N 900000034 REV B 4Table of Contents 1 Overview ................................................................................................................................. 5 1.1 Part Number Reference ................................................................................................. 5 2 Specifications.......................................................................................................................... 6 2.1 I/O and Environmental (Rear Panel).............................................................................. 6 2.2 Switch and Indicator (Front Panel)................................................................................. 7 3 Unpacking and Installation......................................................................................................8 3.1 Unpacking ...................................................................................................................... 8 3.2 Installation ...................................................................................................................... 8 3.3 Connections ................................................................................................................... 8 4 Operation .............................................................................................................................. 10 4.1 Powering the QFS-106................................................................................................. 10 4.2 Loss of Input Signal...................................................................................................... 10 4.3 Loss of Output Signal................................................................................................... 10 5 Calibration............................................................................................................................. 11 6 Diagrams............................................................................................................................... 12
MANUAL P/N 900000034 REV B 51 Overview The Brandywine Communications QFS-106 is a high performance reference frequency standard distribution amplifier. The QFS-106 has two internal reference oscillator options. The QFS-106 may use either a free running Oven Controlled Crystal Oscillator (OCXO) or a free running Rubidium Oscillator. Also, the QFS-106 has various power supply options. The QFS-106 may use either AC or DC input power supplies. The QFS-106 provides six output channels of a single reference frequency, typically 10 MHz. The QFS-106 has six individually buffered low phase noise outputs. When more outputs are required, multiple QFS-106 units may be daisy-chained to a single reference. 1.1 Part Number Reference PART NUMBER OSCILLATOR POWER SUPPLY 015006001 OCXO 115/230 VAC 015006002 OCXO 09 – 18 VDC 015006003 OCXO 18 – 36 VDC 015006004 OCXO 36 – 72 VDC 015006011 Rubidium 115/230 VAC 015006012 Rubidium 09 – 18 VDC 015006013 Rubidium 18 – 36 VDC 015006014 Rubidium 36 – 72 VDC
MANUAL P/N 900000034 REV B 62 Specifications 2.1 I/O and Environmental (Rear Panel) SPECIFICATION DESCRIPTION OCXO Stability 1 x 10-8 at -30° to -60°C OCXO Aging 5 x 10-8 per year Rubidium Stability ±1 x 10-10 at 0 to 50°C Internal Reference Oscillator Rubidium Aging 5 x 10-11 per month Label J8 Number of Reference Inputs 1 Input Frequency 10 MHz Standard Level 1 Vrms into 50 ohm Reference Input Connector BNC Label J7 Number of Reference Outputs 1 Output Frequency 10 MHz Standard Level 1 Vrms into 50 ohm Distortion < 33 dBc Reference Output (Buffered from Reference Input) Connector BNC Label Output 1 (J1), Output 2 (J2), Output 3 (J3), Output 4 (J4), Output 5 (J5), and Output 6 (J6) Number of Frequency Outputs 6 Buffered Outputs Frequency 10 MHz Standard Level 1 Vrms into 50 ohm Distortion < 33 dBc Outputs Connector BNC 1 Hz -90 dBc/Hz 10 Hz -110 dBc/Hz 100 Hz -140 dBc/Hz 1000 Hz -150 dBc/Hz Phase Noise at 10 MHz 10000 Hz -157 dBc/Hz Temperature -30 to +60°C Environmental Humidity 95% non-condensing VDC Model 12 VDC and 4A Fuse VAC Model 115/230 VAC and 250mA 09 – 18 VDC 18 – 36 VDC VDC Power Supply 36 – 72 VDC Power VAC Power Supply 115/230 VAC VDC Connector DC Connector Pin A -> Positive VDC Connector 2 Pin Pin B -> Negative Power Connection VAC Connector AC Connector Length (Rack Mount & Chassis) 19.00” and 17.00” Height 1.720” Dimension Width 6.150” Weight Weight Typically 3 lbs
MANUAL P/N 900000034 REV B 72.2 Switch and Indicator (Front Panel) SWITCH/INDICATOR COLOR DESCRIPTION POWER SWITCH –– Used to switch the unit on and off POWER LED GREEN Indicates that the unit has primary power OUTPUT MONITOR 1 LED GREEN Indicates that Output 1 is present OUTPUT MONITOR 2 LED GREEN Indicates that Output 2 is present OUTPUT MONITOR 3 LED GREEN Indicates that Output 3 is present OUTPUT MONITOR 4 LED GREEN Indicates that Output 4 is present OUTPUT MONITOR 5 LED GREEN Indicates that Output 5 is present OUTPUT MONITOR 6 LED GREEN Indicates that Output 6 is present RED Indicates that the unit is in power up mode or not locked to the reference input PLL LED GREEN Indicates that the unit is phased locked to the reference input RB LOCKED LED GREEN Indicates that the rubidium oscillator has reached resonance lock if installed CALIBRATE (POTENTIOMETER) –– Used to calibrate the oscillator
MANUAL P/N 900000034 REV B 83 Unpacking and Installation 3.1 Unpacking Carefully remove the QFS-106 from the shipping carton. The following items should be included in the shipment: • 1 QFS-106 • 1 user guide • 1 power cord • 1 power mating connector (DC voltage only) Note the power connection on the rear of the QFS-106 chassis. Please take note of the voltage displayed near this power connection. If the AC or DC voltage setting is incorrect, use a small screw driver to remove the fuse holder. Reverse the fuse holder and re-insert the fuse holder, making sure that the correct AC or DC voltage is now displayed on the rear panel of the QFS-106. Use the supplied power mating connector for the QFS-106 unit (DC voltage only). The user must connect the wires to the connector as shown in the table below. DC MODEL DESCRIPTION Pin A Positive input voltage Pin B Negative input voltage Mating Connector Amphenol 97-3106A-10SL-4S Strain Relief Amphenol 97-3057-1004-1 3.2 Installation The QFS-106 may be bolted directly onto a 19” rack mount enclosure. 3.3 Connections Connect the power source to the QFS-106. Now connect the input reference signal and output reference signals to the appropriate connectors on the rear panel of the QFS-106. The Reference Output connector may be used when daisy-chaining multiple QFS-106 units.
MANUAL P/N 900000034 REV B 9 When daisy-chaining multiple QFS-106 units, these units should be connected as shown in Figure 1. This configuration ensures that all outputs are accurately locked to a common reference with minimal injection of the phase lock loop noise. Power QFS-106 QFS-106 1 2 3 4 5 6 REF IN REF OUT 1 2 3 4 5 6 QFS-106 REF IN REF OUT 1 2 3 4 5 6 QFS-106 REF IN REF OUT 1 2 3 4 5 6 Additional QFS-106 Units User’s Equipment User’s Equipment User’s Equipment User’s Equipment Figure 1 Daisy-Chain Interconnection
MANUAL P/N 900000034 REV B 104 Operation 4.1 Powering the QFS-106 Once all the connections to the QFS-106 have been made, apply power to the unit by switching the power switch to the on position. The power switch is located on the rear panel of the unit. The Power LED and Output Monitor LEDs (1 – 6) on the front panel of the unit will illuminate green. Please note that units fitted with the quartz oscillators will take approximately five minutes to warm up and these units will reach full accuracy after twenty-four hours. Units fitted with the rubidium oscillators will take approximately ten minutes to warm up. 4.2 Loss of Input Signal The PLL LED illuminates green when an input signal is present on the Reference Input connector on the rear panel of the unit. If the reference input fails, the front panel PLL LED will extinguish. 4.3 Loss of Output Signal The Output Monitor LEDs (1 – 6) illuminate green when output signals are present on the Outputs connectors on the rear panel of the unit. If one or more outputs fail, the front panel Output Monitor LEDs (1 – 6) will extinguish. Please note that a short circuit on the output cable may not always trigger the output alarm.
MANUAL P/N 900000034 REV B 115 Calibration The QFS-106 is a free running standard that requires periodic recalibration. The unit must be calibrated against a frequency standard that is at least ten times more accurate than the oscillator fitted in the QFS-106 unit. Therefore OCXO oscillator units must be calibrated against a rubidium reference. Rubidium oscillator units must be calibrated against a cesium frequency standard or GPS disciplined rubidium. The front panel mounted potentiometer is used to adjust the frequency of the QFS-106 unit. The table below describes this calibration. OUTPUT POTENTIOMETER OUTPUT LEVEL ADJUSTMENT Calibrate 20 turn potentiometer (front panel) Frequency standard calibration Output 1 10 turn potentiometer (rear panel) 7 – 13 dBm Output 2 10 turn potentiometer (rear panel) 7 – 13 dBm Output 3 10 turn potentiometer (rear panel) 7 – 13 dBm Output 4 10 turn potentiometer (rear panel) 7 – 13 dBm Output 5 10 turn potentiometer (rear panel) 7 – 13 dBm Output 6 10 turn potentiometer (rear panel) 7 – 13 dBm
MANUAL P/N 900000034 REV B 126 Diagrams FIGURE DESCRIPTION 1 QFS-106 Front Panel (AC and DC Models) 2 QFS-106 Rear Panel (AC Model) 3 QFS-106 Rear Panel (DC Model) 4 QFS-106 Mechanical Outline (AC Model) 5 QFS-106 Mechanical Outline (DC Model)

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