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Keysight L7222C

Coaxial Transfer Switch

Operating

and Service

Manual

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Summary of Contents for L7222C

Page 1: ...Keysight L7222C Coaxial Transfer Switch Operating and Service Manual ...

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Page 4: ...ed soft ware or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED KEYSIGHT SPECIFICALLY DIS CLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Exclusive Remedies THE REMEDIES PRO VIDED HEREIN ARE THE BUYER S SOL...

Page 5: ...nex I this product is classed as a Monitoring and Control Instrumentation product Do not dispose in domestic household waste To return unwanted products contact your local Keysight office or see www keysight com for more information Printing Copies of Documentation from the Web To print copies of documentation from the Web download the PDF file from the Keysight web site Go to http www keysight co...

Page 6: ...Japan Australia tel 1 800 802 540 fax 1 800 681 776 fax 1 800 225 539 China tel 800 810 0508 fax 800 810 0507 Hong Kong tel 800 933 229 fax 800 900 701 India tel 1600 112 626 fax 1600 113 040 Japan Bench tel 0120 421 345 alt 81 426 56 7832 fax 0120 01 2144 Japan On Site tel 0120 421 345 alt 81 426 56 7832 fax 0120 012 114 Singapore tel 1 800 275 0880 fax 65 6755 1214 South Korea tel 080 778 0011 f...

Page 7: ... 3 9288 504 alt 972 3 9288 544 fax 972 3 9288 520 Italy tel 39 0 2 9260 8484 fax 39 0 2 9544 1175 Luxemburg tel 32 0 2 404 9340 fax 32 0 2 404 9395 Netherlands tel 31 0 20 547 2111 fax 31 0 20 547 2190 Russia tel 7 095 797 3963 alt 7 095 797 3900 fax 7 095 797 3902 Spain tel 34 91 631 3300 fax 34 91 631 3301 Sweden tel 0200 88 22 55 alt 46 0 8 5064 8686 fax 020 120 2266 Switzerland French tel 0800...

Page 8: ...urope v General Information 1 L Series Coaxial Transfer Switch Overview 1 Features 1 Driving the Switch 3 Standard Drive 4 Single Line TTL Drive 4 Dual Line TTL Drive 5 Electronic Position Indicator 6 Specifications 7 Environmental Specifications 11 Physical Specifications 12 Installation 13 Initial Inspection 13 Operating Instruction 14 Operator s Check 14 Performance Tests 16 Service Instruction...

Page 9: ...ty of 0 03 dB low insertion loss and high isolation 80 dB Figure 1 L7222C Coaxial Transfer Switch Table 1 shows general details of L7222C coaxial transfer switch Features Guaranteed 0 03 dB insertion loss repeatability for 2 million cycles Excellent isolation typically 80 dB at 26 5 GHz Opto electronic indicators and interrupts Magnetic latching TTL 5V CMOS compatible optional Table 1 General Info...

Page 10: ... instrumentation The longevity of this switch increases system uptime and lowers the cost of ownership by reducing calibration cycles and switch maintenance Opto electronic interrupts and indicators improve reliability and extend the life of the switch by eliminating DC circuit contact failures characteristic of conventional electromechanical switches The L7222C have circuits that interrupt the cu...

Page 11: ...Port Connections and b Drive Connections Table 2 Standard Drive Control RF path Standard drive voltage Drive A Drive B Pin 3 Pin 5 Position A Ground Open Position B Open Ground Table 3 TTL Drive Control RF path Single line TTL 5V CMOS drive voltage Dual line TTL 5V CMOS drive voltage TTL Drive A TTL Drive B TTL Drive A TTL Drive B Pin 7 Pin 8 Pin 7 Pin 8 Position A High High High Low Position B Lo...

Page 12: ...pin 9 must be grounded Select position A by applying ground to pin 3 Select position B by applying ground to pin 5 NOTE After the RF path is switched and latched the drive current is interrupted by the electronic position sensing circuitry Pulsed control is not necessary but if implemented the pulse width must be 15 ms minimum to ensure that the switch is fully latched Single Line TTL Drive Connec...

Page 13: ...ully latched Dual Line TTL Drive Connect pin 1 to supply voltage 20 Vdc to 32 Vdc and pin 9 to ground See Figure 3 for connection diagram and Table 3 for TTL drive control NOTE For TTL drive pin 9 must be grounded In addition to the quiescent current supplying the electronic position sensing circuitry the drive current flows out of pin 9 during switching when using TTL drive Select position A by a...

Page 14: ...General Information Keysight L7222C Coaxial Transfer Switch Operating and Service Manual 6 if implemented the pulse width must be 15 ms minimum to ensure that the switch is fully latched ...

Page 15: ...ected to an output corresponding to either postition A or position B The solid state relays are configured for AC and or DC operation See Table 5 for indicator specifications The electronic position indicators require that the supply 20 to 32 VDC be connected to pin 1 but requires that pin 9 be grounded if pulse drive is used and continuous indicators operation is desired If pin 9 is not grounded ...

Page 16: ... approximate and are printed in italics Table 4 General Specifications for L7222C Coaxial Transfer Switch Keysight Model Number L7222C Maximum power rating Switching1 1 Hot switching For cold switching see supplement specifications on page 9 1W CW Non switching 50W Pk not to exceed 1 W average Life 2 million cycles minimum Switching Speed 15 ms Table 5 Indicator Specifications for L7222C Coaxial T...

Page 17: ...22C Coaxial Transfer Switch Keysight Model Number L7222C Frequency Range DC to 26 5 GHz Insertion Loss 0 2 dB 0 025 x Freq GHz Isolation 110 dB 2 0 x Freq GHz SWR 1 1 DC to 2 GHz 1 15 2 to 4 GHz 1 25 4 to 12 4 GHz 1 40 12 4 to 20 GHz 1 65 20 to 26 5 GHz Repeatability 0 03 dB typical Characteristics 50 Ω Connectors SMA f ...

Page 18: ... less Sea level 0 88 derating 15 000 feet Low VSWR 1 2 See Figure 6 for derating above 1 2 VSWR Table 7 Switch Drive Specifications for L7222C Coaxial Transfer Switch Min Nominal Max Unit Supply Voltage Vcc 20 24 32 V Supply Current Icc 2001 mA Supply Current quiescent 25 50 mA 1 Switching Pulse width 15 ms Vcc 24 VDC Table 8 TTL Drive Specifications for L7222C Coaxial Transfer Switch Option T24 M...

Page 19: ...ansfer Switch Operating and Service Manual 11 Figure 5 Maximum Incident Power Cold Switching vs Frequency Figure 6 Power Derating Factor vs VSWR Power derating factor versus VSWR Power derating factor VSWR 1 1 1 5 2 2 5 3 1 0 9 0 8 0 7 0 6 0 5 ...

Page 20: ...to 85o C 10 cycles per MIL STD 202F Method 107D Condition A modified Humidity Operating 95 RH at 65o C 10 days per MIL STD 202F Method 106E Shock Half sine Operating 500 G 0 5 ms 3 drops direction 18 total 50 G 6 ms 18 total Vibration Operating Survival Random 7 G rms 5 to 2000 Hz at 0 25 in p p 20 G rms 20 to 2000 Hz at 0 06 in p p 4 min cycle 4 cycles axis 2 41 G rms 10 minutes axis Altitude Sto...

Page 21: ...TYP 68 37 2 692 REF 69 46 2 735 REF 6 72 0 265 REF 31 75 1 250 TYP 23 11 910 TYP 12 89 507 TYP 4X M2 5 X 0 45 6 5 8 32 328 TYP 55 20 2 173 4 85 191 5 93 233 TYP 4 94 194 TYP 4 94 194 TYP 6 00 236 TYP 6 00 236 TYP 2 54 100 TYP 5 66 223 TYP 3 63 143 TYP 2 54 100 TYP 7 94 313 6 00 236 TYP 2 54 100 TYP 2 54 100 TYP 3 36 143 TYP 5 66 223 TYP 31 75 1 250 19 81 780 10 16 400 56 80 2 236 5 93 233 TYP 45 7...

Page 22: ...st Keysight Technologies Sales and Service office Refer to the Service and Support information in the front matter of this manual Keysight Technologies will arrange for repair or replacement of the damaged or defective equipment Keep the shipping materials for the carrier s inspection 3 If you are returning the instrument under warranty or for service repackaging the instrument requires original s...

Page 23: ...he level specified in Table 9 or RF power applied is greater than the maximum specified as in Table 4 may cause permanent damage to the device Description The coaxial transfer switch is connected to a network analyzer configured for the s parameter measurement The network analyzer may be set to sweep over the whole or selected frequency range of the switch to be verified The s parameters measureme...

Page 24: ... analyzer s Port 1 and Port 2 to Port 3 and Port 4 of the switch Measure S11 S21 and S22 and verify against specifications in Table 6 4 Disconnect Port 3 and Port 4 from network analyzer Connect Port 1 and Port 2 of the network analyzer to switch s Port 1 and Port 4 respectively 5 Refering to Table 2 standard drive or Table 3 TTL drive apply appropriate drive voltage to ensure switch is in positio...

Page 25: ...nstrument using the procedure in the analyzer s operating manual Service Instructions Adjustment The coaxial transfer switch do not have internal adjustments and should not be opened Repair The L7222C coaxial transfer switch is not recommended for repair as most components are not easily removed Maintenance The connectors particularly the connector faces must be kept clean For instruction on conne...

Page 26: ...Service Instructions Keysight L7222C Coaxial Transfer Switch Operating and Service Manual 18 ...

Page 27: ...This information is subject to change without notice Keysight Technologies 2007 2014 Edition 2 August 2014 L7222 90001 L7222 90001 www keysight com ...

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