Xicom AND XT-100, Operation & Installation Manual

Page 1: ...OPERATION AND INSTALLATION MANUAL XT 50 XT 80 AND XT 100 ANTENNA MOUNT TWT POWER AMPLIFIERS ...

Page 2: ...ON INSTALLATION MANUAL XT 50 XT 80 AND XT 100 ANTENNA MOUNT TWT POWER AMPLIFIERS 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: ... or changes Xicom Technology makes no warranty of any kind with regard to this material including but not limited to the implied warranties of fitness for a particular purpose Xicom Technology shall not be liable for errors contained herein or for incidental consequential damages in connection with the furnishing performance or use of this material Printing History EDITION DATE ECO DOCUMENT NUMBER...

Page 4: ...troller Connections 2 4 Control and Monitor Interfaces 2 5 Control Interfaces 2 6 Digital Status Circuits 2 9 Analog Status Circuits 2 11 Output Voltage Circuits 2 11 Detected Power Calibration 2 13 Standard Interconnect Cable 2 13 RF Connectors 2 16 3 Operation 3 1 General 3 1 Operating Modes 3 1 Heater Delay Mode 3 1 Heater Standby Mode 3 1 Standby Mode 3 2 High Voltage ON Mode 3 2 Fault Mode 3 ...

Page 5: ...ation of Controller Interface Connector J1 2 4 2 8 Interface Connector Pinouts 2 5 2 9 Internal Supply Control Circuits 2 7 2 10 External Supply Control Circuits 2 8 2 11 Digital Status Circuit Isolation 2 9 2 12 TWT Temperature Temperature vs Voltage 2 12 2 13 Detected Power Calibration 2 13 2 13 Interconnect Cable 2 14 2 14 Interface Cable D Connector Pinouts 2 15 List of Tables 1 1 Models Avail...

Page 6: ...securely fastened Check that there is no microwave leakage from them Never operate the amplifier with an open waveguide This amplifier is capable of generating high power microwave radiation which can cause bodily harm Safety Summary 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 ...

Page 7: ...aveling Wave Tube TWT an integral high voltage power supply and a forced air cooling system For a brief product description and typical block diagram see the table and figure below Model Name Frequency Range Band Rated Power HPA Flange XT 50C 5 85 to 6 425 GHz C Band 50 Watts XT 100C 5 85 to 6 425 GHz C Band 140 Watts XT 50X 7 9 to 8 4 GHz X Band 50 Watts XT 100X 7 9 to 8 4 GHz X Band 125 Watts XT...

Page 8: ...hes or status indicators for operator use The external control and status indicator interfaces are detailed in Chapter 2 of this manual Performance Specifications The performance specifications of the C Band X Band and Ku Band models are shown in Tables 1 2 1 3 and 1 4 respectively Environmental specifications for all models are summarized in Table 1 5 Interface specifications are shown in Table 1...

Page 9: ...WO EQUAL SIGNALS 18 dBc maximum with two equal carriers at 4 dB total output backoff 18 dBc maximum with two equal carriers at 4 dB total output backoff HARMONIC OUTPUT Maximum 60 dBc 60 dBc AM TO PM CONVERSION Maximum 2 5 dB at 6 dB below rated power 2 5 dB at 6 dB below rated power NOISE POWER Transmit Band Maximum Receive Band Maximum 70 dBw 4 KHz 150 dBw 4 KHz 3 7 GHz to 4 2 GHz 80 dBw 4 KHz 1...

Page 10: ...TH TWO EQUAL SIGNALS 18 dBc maximum with two equal carriers at 4 dB total output backoff 18 dBc maximum with two equal carriers at 4 dB total output backoff HARMONIC OUTPUT Maximum 60 dBc 60 dBc AM TO PM CONVERSION Maximum 2 5 dB at 6 dB below rated power 2 5 dB at 6 dB below rated power NOISE POWER Transmit Band Maximum Receive Band Maximum 70 dBw 4 KHz 70 dBw 4 KHz 7 25 7 75 GHz 80 dBw 4 KHz 80 ...

Page 11: ... total output backoff 18 dBc maximum with two equal carriers at 4 dB total output backoff HARMONIC OUTPUT Maximum 60 dBc 60 dBc 60 dBc AM TO PM CONVERSION Maximum 2 5 dB at 6 dB below rated power 2 5 dB at 6 dB below rated power 2 5 dB at 6 dB below rated power NOISE POWER Transmit Band Maximum Receive Band Maximum 70 dBw 4 KHz 150 dBw 4 KHz 10 95 GHz to 12 75 GHz 70 dBw 4 KHz 150 dBw 4 KHz 10 95 ...

Page 12: ...50 maximum value XT 80 maximum value XT 100 maximum value 400 VA Maximum 95 Minimum Power Factor 525 VA Maximum 95 Minimum Power Factor 675 VA Maximum 96 Minimum Power Factor CONTROLS High Voltage ON OFF Fault Reset Heater Standby MONITOR DIGITAL High Voltage ON Filament Time Delay Standby Summary Fault Helix Current Arc Fault Helix Latched Fault Temperature Fault High Voltage Fault Fan Fault MONI...

Page 13: ...n received Save all data sheets They will be useful during any maintenance actions Save the packing material and use it if you need to reship the unit Inspect all items for any damage received during shipment If shipping damage is detected submit a damage report to the shipping carrier Failure to submit a report may invalidate any future claims Mechanical Installation The power amplifier can be mo...

Page 14: ...han 5 psi a waveguide window must be installed at the output flange of the amplifier 5 Install and hand tighten all mounting screws 6 32 for Ku Band and 10 32 for C Band and X Band Do not overtighten the waveguide mounting screws Overtightening may strip the threads in the waveguide flange 6 Tighten all mounting screws to the torque values shown in Figure 2 3 A typical sequence is indicated by the...

Page 15: ...aust port of the amplifier and one that has smooth bends and transitions Prime Power Connections The location of the prime power input connector is shown in Figure 2 4 WHEN THE CONTROLLER IS DISCONNECTED OR SET TO AC OFF PRIME POWER IS STILL PRESENT IN THE INTERIOR OF THE TWTA DISCONNECT PRIME POWER BEFORE SERVICING THE UNIT Figure 2 4 Location of Prime Power Connector AC Prime Power 100 to 260 VA...

Page 16: ...re replaceable through the screw on sealing caps next to the prime power connector Figure 2 6 Location of Fuses Controller Connections Connector J1 Figure 2 6 on the Input End of the amplifier connects to the external controller A description of the functions of this connector follows Figure 2 6 The standard connecting cable and the controller end of the cable are described in the paragraphs follo...

Page 17: ...Heater Standby Fault Reset AC Command Return Status Digital Indicators All circuits active low A C G H K M R S T U W Helix Arc Fault Latched Helix Arc Fault Heater Timer Complete TWT Temperature Fault High Voltage ON Fan ON High Voltage Fault Fan ON High Summary Fault Fan Lock Control Status Return Signals Analog b D L N P RF Output Power Helix Current High Voltage Monitor Analog Signal Return TWT...

Page 18: ...PT06E 18 32P 1 Connect Pin a to Pin Z 2 Connect Pin F to Pin W 3 Connect Pin E to Pin Y With these connections the amplifier will be operational within 3 minutes of applying AC Power If the amplifier has a Latching Type Fault it can be reset by momentarily turning off the AC Power Bias for the external control inputs need to be implemented with either the internal 15 VDC of the amplifier or from a...

Page 19: ...XT 50 XT 80 and XT 100 Amplifiers Installation 2 7 Figure 2 9 Internal Supply Control Circuits ...

Page 20: ...2 8 Installation XT 50 XT 80 and XT 100 Amplifiers Figure 2 10 External Supply Control Circuits ...

Page 21: ...hese circuits are isolated from the internal circuits of the power amplifier The operation of all three control circuits is the same When pins F J or X are pulled to the power amplifier ground pin J1 W the control function is enabled Fault Reset should be implemented with a momentary circuit or switch Digital Status Circuits The digital status interface circuits are isolated outputs as shown in Fi...

Page 22: ...e switch is an isolated photo coupler TWT Temperature Fault Pin H Active low When active indicates there is a TWT Temperature fault within the amplifier when Pin H is connected by open collector to ground Pin W Maximum open voltage is 20 volts and maximum switched current is 3 mA The switch is an isolated photo coupler This is not a latched fault The amplifier will turn itself on once the TWT has ...

Page 23: ...ed current is 3 mA The switch is an isolated photo coupler Fan Lock Pin U Active low When active indicates that the fan is locked when Pin U is connected by open collector to ground Pin W Maximum open voltage is 20 volts and maximum switched current is 3 mA The switch is an isolated photo coupler A Fan Lock signal is caused by either a fan failure or some object is interfering with the rotation of...

Page 24: ... E Fifteen volts DC at 100 mA is available for external use or for powering the pull up resistors for the control and status signals 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 ...

Page 25: ...C 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 Connect the round connector plug to I O Interface Connector J1 of the amplifier Connect the other end of the cable to Connector J2 on the rear panel of the XTC 100 Female DB 25 or an equivalent controller ...

Page 26: ...5 16 17 18 19 20 21 22 23 24 25 CONNECTOR PTO6E 18 32P SR X DASH NO 100 X DIM 100 FEET NOTE GROUND SHIELD TO CONNECTORS 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 WHT BLU GRN ORG RED BLK D CONN MALE 25 PIN 150 150 FEET to TWA to XTC 100 J2 LEAD COLOR ...

Page 27: ...dicator Summary Fault Indicator High Voltage Select ON Indicator Standby Status Indicator FTD Filament Time Delay Remote Local Indicator 7 22 24 9 11 13 Pins 7 9 11 and 22 tied together May be interchanged Analog Status Circuits 14 15 17 Helix Current Monitor High Voltage Monitor TWT Temperature Monitor 16 16 16 Pin 16 tied to Pin 4 Output Voltage Circuits 1 19 24 Volts DC 15 Volts DC 16 16 Ground...

Page 28: ...mple Connector J4 Refer to Figure 2 7 for the location of connector J4 This Type N Female Connector is connected to a probe in the output waveguide assembly of the TWTA RF Output Waveguide Flange J5 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 chap...

Page 29: ...the Timer Complete status line will not be active When the heater delay is complete the Timer Complete status line will go active low If there is a power failure the high voltage will be kept off for a period proportional to the prime power off time At the end of this period the high voltage will be automatically applied assuming that the High Voltage ON control line is active Heater Standby Mode ...

Page 30: ...Fault circuit latches the Fault Reset control line must be activated briefly or the High Voltage ON control deactivated to clear the fault High Voltage Fault The high voltage fault circuit will latch immediately when a fault occurs A high voltage fault may be cleared by setting the Fault Reset control line low or by setting the high voltage ON control high TWT Over Temperature Fault A TWT over tem...

Page 31: ...e Heater Standby command and returns the TWT s heater voltage to its normal operating value Fault Reset This control signal resets the High Voltage fault and Helix Current fault reset control line momentarily set to low Turning the High Voltage OFF also clears faults Status Digital Helix Arc Fault Latched Indicates there is a helix arc fault within the amplifier Status line goes low when fault occ...

Page 32: ...his is not a fault condition The fan is expected to operate on high during elevated ambient temperature conditions Summary Fault Indicates there is a fault within the amplifier Status line goes low when fault occurs Fan Lock Indicates that the fan is locked A fan lock signal is caused by either a fan failure or some object interfering with the rotation of the fan Status line goes low when fault oc...

Page 33: ... point EXCEEDING THE INPUT POWER LIMIT WILL CAUSE A HELIX CURRENT FAULT AND MAY PERMANENTLY DAMAGE THE TWT Turn On Sequence The pin numbers referenced in this section apply to connector J1 the interface connector 1 Connect Pin a to ground This applies prime power to the TWT power supply Wait until the heater time delay cycle is complete Pin G goes low 2 Connect Pin F to ground This turns High Volt...

Page 34: ... shut down for a few hours and quick turn ON is required disconnect Pin F from Pin w and connect Pin J to Pin W This places the TWTA is heater standby mode 3 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 ...

Page 35: ...environment and at least annually the Lower Deck Cover should be removed per the procedure presented later in this chapter Inspect the cooling fins for accumulated dirt and debris Use high pressure air to blow dust and debris out of the Lower Deck cover After completion of the cleaning operation check the integrity of the Electrical connections and then replace the Lower Deck cover Remove Lower De...

Page 36: ...e the following shipping address for all returned products XICOM TECHNOLOGY 3550 Bassett Street Santa Clara CA 95054 RMA ___________________ Re Shipment It is best to reship the amplifier in its original packing however if the original packing is not available use wooden boxes or double layer corrugated boxes Make sure that there is adequate packing material between the amplifier and the outside b...