Cable AML ITX02-2000 Operation Installation Maintenance Manual Download Page 1

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Proprietary

FCC ID: JXZITX02-2000

Type Acceptance Report 6/20/03

Proprietary

12.0 USER’S MANUAL

Summary of Contents for ITX02-2000

Page 1: ...Proprietary FCC ID JXZITX02 2000 Type Acceptance Report 6 20 03 55 Proprietary 12 0 USER S MANUAL...

Page 2: ...Cable AML Installation and Maintenance Manual Indoor Broadband Transmitter Model ITX02 2000...

Page 3: ...for Indoor Broadband Transmitter Model ITX02 2000 Cable AML Inc 3427 W Lomita Boulevard Torrance California 90505 USA TEL 310 517 8888 or 702 363 5660 FAX 310 517 8555 or 702 363 2960 Copyright 2003...

Page 4: ...rcuits 8 2 5 On Delay Timer Assembly 9 2 6 Internal Downconverter 9 3 0 INSTALLATION 11 3 1 Unpacking 11 3 2 Location 11 3 3 Input Voltage Requirements 11 3 4 Operating and Diagnostic Connections 11 4...

Page 5: ...l and Expected Readings 3 Figure 3 MMDS Rack Monitor Panel 3 Figure 4 ITX02 2000 Block Diagram 5 Figure 5 Driver Chassis Component Layout 10 Figure 6 MMDS Installation Block Diagram 12 Figure 7 AC Inp...

Page 6: ...rrent sharing modules with hot plug replacement capability Each module has an 84 Amp capability Only two modules are required to run the system making the third one a built in spare A 5 VDC voltage re...

Page 7: ...Indoor Broadband Transmitter ITX02 2000 2 IM402513 10 Rev Figure 1 ITX02 2000 Broadband Transmitter...

Page 8: ...to 200V Reading From 11 5 to 12 5V Reading From 0 7 to 1 7V Reading From 0 7 to 1 7V Reading From 0 7 to 1 7V Reading From 85 to 200V Reading From 85 to 200V Reading From 85 to 200V Figure 2 Dial and...

Page 9: ...Indoor Broadband Transmitter ITX02 2000 4 IM402513 10 Rev This Page Intentionally Left Blank...

Page 10: ...2 POWER SUPPLY 24 VDC POWER SUPPLY 5 VDC REGULATOR ON DELAY TIMER 40 dB PARALLEL POWER NETWORK RF OUT 2500 2686 MHz 31 CHANNELS 34 dBm CH POWER SUPPLY 3 TX MONITOR FRONT PANEL DOWN CONVERTER CONNECTIO...

Page 11: ...Indoor Broadband Transmitter ITX02 2000 6 IM402513 10 Rev...

Page 12: ...ower Supply Local Oscillator LO The microwave local oscillator is a crystal oscillator and frequency multiplier encapsulated in a single enclosure The output of the LO provides pump power to the signa...

Page 13: ...is protected from failure due to overheating by an internal temperature sensor The sensor circuit automatically switches off the amplifier input power when the amplifier temperature exceeds 167 F 75 C...

Page 14: ...tput volts Amplifier Power On Off Switch Panel this panel is located behind a blank front panel as shown in Figure 1 For access to this panel the blank front panel must be removed The switches are int...

Page 15: ...Indoor Broadband Transmitter ITX02 2000 10 IM402513 10 Rev Amplifier Power Supply Local Oscillator Pump Amp Filters Upconverter VHF Processor Figure 5 Driver Chassis Component Layout...

Page 16: ...an area with adequate ventilation to provide the necessary airflow into the unit Position floor mounted enclosed equipment racks on a flat surface with enough space at the rear to swing open the acce...

Page 17: ...his unit is equipped with an AC power cord that is wired for single phase operation It is necessary to attach a plug to the power cord before putting the unit into operation For operating in three pha...

Page 18: ...1 PHASE 2 PHASE 2 PHASE 3 PHASE 3 GROUND or EARTH GREEN or GREEN YELLOW NEUTRAL WHITE or BLUE HOT or MAIN BLACK or BROWN GROUND or EARTH GREEN or GREEN YELLOW NEUTRAL WHITE or BLUE HOT or MAIN BLACK...

Page 19: ...rs for Driver RF output and Transmitter Monitor output are provided on the front panel The locations in the circuitry are shown in Figure 5 XO and VHF Input Test Points Crystal oscillator XO monitor V...

Page 20: ...Indoor Broadband Transmitter ITX02 2000 15 IM402513 10 Rev Meter Panel Driver 12 VDC 84 A Power Supplies x3 Blower Figure 9 ITX02 2000 Rack Front and Back...

Page 21: ...Indoor Broadband Transmitter ITX02 2000 16 IM402513 10 Rev This Page Intentionally Left Blank...

Page 22: ...located in the Driver Chassis see Figure 5 CONSEQUENTLY IT IS NOT RECOMMENDED TO CHANGE OR ADJUST THE TRANSMITTER OUTPUT LEVELS UNLESS THERE ARE SIGNIFICANT CHANGES IN THE NUMBER OF INPUT CHANNELS OR...

Page 23: ...ent conditions are in the range specified in Section 6 0 Specifications 4 3 Thermal Sensor Switch To protect the power amplifier from overheating due to fan failure or excessive ambient temperature an...

Page 24: ...mplifier 2 Verify the AC power input by checking the fans on the power supplies for motion 3 Check the transmitter meter panel for 12 VDC reading 4 Check the output power and of the power amplifier No...

Page 25: ...is too high causing the supply to go into crowbar and shut down At this point examine the wiring harness for an obvious wiring fault If no fault is found then one of the modules supplied by that power...

Page 26: ...Oscillator Frequency2 2278 MHz Frequency Response 1 5 dB Frequency Stability 0 0005 Input Return Loss 15 dB Input Connector Type F Output Return Loss 18 dB Output Connector Type N Temperature Range 6...