Related Manuals for Xicom XT-50
Summary of Contents for Xicom XT-50
- Page 1 PERATION AND NSTALLATION ANUAL XT-50, XT-80 XT-100 TWT P NTENNA OUNT OWER MPLIFIERS...
- Page 2 & I PERATION NSTALLATION ANUAL XT-50, XT-80, XT-100 TWT P NTENNA OUNT OWER MPLIFIERS Document No. 802-0111-001 Revision E September 2001 3550 Bassett Street Santa Clara, CA 95054 Phone (408) 213-3000 · Fax (408) 213-3001...
- Page 3 The information in this document is subject to change without notice. Xicom Technology reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Xicom Technology to notify any person of such revision or changes.
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Page 4: Table Of Contents
Clearing Faults ...................... 3-3 Control and Status Signals................... 3-3 Control Signals ...................... 3-3 Status, Digital ......................3-3 Status, Analog ....................... 3-4 Initial Turn-On ...................... 3-5 Pre-Power Check....................3-5 Turn-On Sequence ....................3-5 Turn-Off ......................3-6 XT-50, XT-80, and XT-100 Amplifiers... - Page 5 2-14 Interface Cable “D” Connector Pinouts ..........2-15 List of Tables Models Available ..................1-1 C-Band Performance Specifications ............1-3 X-Band Performance Specifications............1-4 Ku-Band Performance Specifications ............1-5 Environmental Specifications, All Models..........1-6 Interface Specifications, All Models ............1-6 XT-50, XT-80, and XT-100 Amplifiers...
- Page 6 Equipment of this nature has inherent hazards. Operator or service technicians should have training on the XT-50, XT-80, or XT-100 power amplifiers. When the amplifier’s cover is removed, the high voltage power supply for the TWT has multiple exposed high voltage points. Use extreme care when operating the amplifier with its cover removed.
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Page 7: Twt Block Diagram
ESCRIPTION Overview This operation manual discusses Xicom Technology antenna-mount power amplifiers with power levels ranging from 50 Watts to 170 Watts. These antenna-mount units are designed for outdoor mounting directly to an antenna structure. The standard components of each amplifier include: a Traveling Wave Tube (TWT), an integral high voltage power supply, and a forced air cooling system. -
Page 8: General Description
Control and Status Interface The XT-50, XT-80, and XT-100 amplifiers are externally controlled. These amplifiers do not include any control switches or status indicators for operator use. The external control and status indicator interfaces are detailed in Chapter 2 of this manual. -
Page 9: C-Band Performance Specifications
10 dB below IESS phase noise profile AC fundamental -50 dBc AC fundamental -50 dBc Sum of all spurs -47 dBc Sum of all spurs -47 dBc VSWR, Maximum Input 1.3:1 1.3:1 Output 2.2:1 2.2:1 XT-50, XT-80, and XT-100 Amplifiers General Description... -
Page 10: X-Band Performance Specifications
10 dB below IESS phase noise profile AC fundamental -50 dBc AC fundamental -50 dBc Sum of all spurs -47 dBc Sum of all spurs -47 dBc VSWR, Maximum Input 1.3:1 1.3:1 Output 2.2:1 2.2:1 General Description XT-50, XT-80, and XT-100 Amplifiers... -
Page 11: Ku-Band Performance Specifications
AC fundamental -50 dBc AC fundamental -50 dBc Sum of all spurs -47 dBc Sum of all spurs -47 dBc Sum of all spurs -47 dBc VSWR, Maximum Input 1.3:1 1.3:1 1.3:1 Output 2.2:1 2.2:1 2.2:1 XT-50, XT-80, and XT-100 Amplifiers General Description... -
Page 12: Environmental Specifications, All Models
RF Output Power (Optional) AUXILIARY VOLTAGES + 15 VDC (100 mA max) +24 VDC (100 mA max) *Heater standby reduces the TWT heater voltage for situations where the high voltage is off for extended periods. General Description XT-50, XT-80, and XT-100 Amplifiers... -
Page 13: Installation
2: I HAPTER NSTALLATION Introduction This chapter describes the procedures for unpacking, inspecting, and installing the XT-50, XT-80, and XT-100 amplifiers. Unpacking and Inspection Upon receiving the amplifier, inspect both the inside and outside of the shipping container for signs of damage. -
Page 14: Waveguide Connection
When you reach the first screw tightened in step a (#1) increase the torque on the screw and repeat the process of steps (1) through (5) until the screws have all been tightened to the torque levels included in Figure 2-3. 2-2 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 15: Air Ducting
The HPA will operate over the entire range of 100 to 260 VAC, 47 Hz to 63 Hz. Connector J2 pinouts are shown in Figure 2-5. Ground 100-260 VAC (PE) Neutral Prime Power Connector- Mating Plug Amphenol T3110-003 Amphenol T3109-013 Figure 2-5. Connector J2 AC Pinouts XT-50, XT-80, and XT-100 Amplifiers Installation... -
Page 16: Fuses
Figure 2-6. The standard connecting cable and the controller end of the cable are described in the paragraphs following the description of connector Figure 2-7. Location of Controller Interface Connector J1 2-4 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 17: Control And Monitor Interfaces
RF Output Power Helix Current High Voltage Monitor Analog Signal Return TWT Temperature Output Voltages +15 VDC (100 mA maximum) +24 VDC (100 mA maximum) External Voltage External Supply (+5/15 VDC) Figure 2-8. Interface Connector Pinouts XT-50, XT-80, and XT-100 Amplifiers Installation... -
Page 18: Control Interfaces
TWTA controller are shown later in this chapter in Figure 2-14. The operation of either configuration is the same. The control system connections are fail-safe. Removal of the interconnect cable inhibits operation of the power amplifier. 2-6 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 19: Internal Supply Control Circuits
Figure 2-9. Internal Supply Control Circuits XT-50, XT-80, and XT-100 Amplifiers Installation... -
Page 20: External Supply Control Circuits
Figure 2-10. External Supply Control Circuits 2-8 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 21: Digital Status Circuits
VDC supply (100 mA max) or an external supply can be used to bias the digital status indicator circuits. Refer to Figure 2-8 for indicator circuit pinout designations and the text following Figure 2- 11 for indicator circuit descriptions. Figure 2-11. Digital Status Circuit Isolation XT-50, XT-80, and XT-100 Amplifiers Installation... - Page 22 The main cooling fan is controlled by the temperature of the TWT. The fan will cycle on and off in cooler ambient conditions. The fan is typically operated below the manufacturer's nominal design voltage. 2-10 Installation XT-50, XT-80, and XT-100 Amplifiers...
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Page 23: Analog Status Circuits
Pin P and referring to Figure 2-12. • Reflected Power (Pin c). The detector output is nominally 2VDC for a VSWR of 2.5:1. Output Voltage Circuits XT-50, XT-80, and XT-100 Amplifiers Installation 2-11... -
Page 24: Twt Temperature: Temperature Vs. Voltage
(Pin Y). • • +24 Volts (Pin V). Twenty-four volts DC at 100 mA is available for external use. Figure 2-12. TWT Temperature: Temperature vs. Voltage 2-12 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 25: Detected Power Calibration
Figure 2-13. Detected Power Calibration Standard Interconnect Cable Typically, this cable is used to connect the amplifier to the following XICOM controllers: XTC-100, XTC-100D, XTC-111D, or XTC-122D. The standard interconnect cable is XICOM Technology Part Number. 350-0017-XXX. Refer to Figure 2-13. The XXX portion of the part number designates the length of the cable (in feet). - Page 26 LEAD COLOR MALE, 18-32P(SR) 25 PIN WHT/BLU WHT/GRN WHT/RED WHT/BLK BLK/WHT/GRN BLK/RED/WHT BLK/WHT/RED RED/WHT/BLK GRN/ORG GRN/RED RED/WHT RED/BLU RED/ORG RED/BLK BLK/WHT BLK/BLU BLK/GRN BLK/ORG BLK/RED NOTE: GROUND SHIELD TO CONNECTORS Figure 2-13. Interconnect Cable 2-14 Installation XT-50, XT-80, and XT-100 Amplifiers...
- Page 27 +24 Volts DC Circuits +15 Volts DC Ground 4,16 Common Ground (connected) *Pin 5 must be connected to Pin 4 with special jumper or external interlock circuit.. Figure 2-14. Interface Cable “D” Connector Pinouts XT-50, XT-80, and XT-100 Amplifiers Installation 2-15...
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Page 28: Rf Connectors
The RF Output flange is: CPR-137G for C-Band or X-Band CPR-112 for X-Band WR-75 for Ku-Band Details on connection to this waveguide flange were presented in the Waveguide Connection Section of this chapter. 2-16 Installation XT-50, XT-80, and XT-100 Amplifiers... -
Page 29: Operation
HAPTER PERATION General An external control and monitor unit must be used to operate the XT-50 and XT- 100 series amplifiers. Control and status signals are accessed via a 32-pin interface connector (J1). It is recommended that operating time (standby and beam on), operating conditions (power level) and maintenance actions be recorded in a power amplifier log. -
Page 30: High Voltage On Mode
Interlock Fault. If the amplifier's cover is removed, an interlock will prevent high voltage from being applied. WARNING: EXTREME CAUTION SHOULD BE USED ANY TIME THE COVER IS OFF THE UNIT. A SAFE PRACTICE IS TO ASSUME THE HIGH VOLTAGE IS ALWAYS ON. Operation Series XT-50, XT-80, and XT-100 Amplifiers... -
Page 31: Clearing Faults
• TWT Temperature Fault. Indicates there is a TWT Temperature fault within the amplifier. This is not a latched fault. The amplifier turns itself ON when the TWT cools to an acceptable temperature. Series XT-50, XT-80, and XT-100 Amplifiers Operation... -
Page 32: Status, Analog
Figure 2-8. Initial Turn-On The check list below should be followed to ensure proper operation of the amplifier and to avoid permanent damage to the amplifier. Operation Series XT-50, XT-80, and XT-100 Amplifiers... -
Page 33: Pre-Power Check
High Voltage OFF, heater at full power. If the TWTA is to be deactivated for a short time (a few minutes to an hour), turn High Voltage OFF by disconnecting Pin F from Pin W. Series XT-50, XT-80, and XT-100 Amplifiers Operation... - Page 34 TWTA OFF. If the TWTA is to be shut down for an extended period, disconnect Pin a from Pin W. This will totally deactivate the TWT and allow the TWT heater to cool. Operation Series XT-50, XT-80, and XT-100 Amplifiers...
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Page 35: Maintenance And Service
Special training, procedures, and test equipment are required to service the power amplifiers. Do NOT attempt to service the unit unless you are qualified to repair XT-50, XT-80, and XT-100 series power amplifiers. XICOM TECHNOLOGY Series XT-50, XT-80, and XT-100 Amplifiers... -
Page 36: Return Authorization
Make sure that there is adequate packing material between the amplifier and the outside box. Seal the container with heavy packing tape or metal bands. Mark the shipping container with the words FRAGILE, DELICATE INSTRUMENT, etc. in several locations. Maintenance and Service Series XT-50, XT-80, and XT-100 Amplifiers...