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Proprietary

FCC ID: JXZITX02-2000

Type Acceptance Report 6/20/03

Proprietary

12.0 USER’S MANUAL

Содержание ITX02-2000

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...