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Keysight L-Series

Coaxial Multiport Switches

Operating and

Service Manual

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Summary of Contents for L Series

Page 1: ...Keysight L Series Coaxial Multiport Switches Operating and Service Manual ...

Page 2: ...e rights customarily provided to the public to use modify reproduce release per form display or disclose commercial computer software or commercial com puter software documentation No additional government requirements beyond those set forth in the EULA shall apply except to the extent that those terms rights or licenses are explicitly required from all providers of commercial computer software pu...

Page 3: ...oring and Control Instrument product The affixed product label is as shown below Do not dispose in domestic household waste To return this unwanted instrument contact your nearest Keysight Service Center or visit http about keysight com en companyinfo environment takeback shtml for more information Sales and Technical Support To contact Keysight for sales and technical support refer to the support...

Page 4: ...4 Keysight L Series Operating and Service Manual THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Page 5: ...ew 12 Instrument options 17 Specifications 18 Frequency range and attenuation 18 Attenuation accuracy 18 Maximum SWR 19 Maximum residual attenuation 19 Attenuation repeatability 20 RF power handling capability 20 Solenoid drive 20 Solenoid cable connector 20 Operating life 21 Switching speed 21 2 Environmental Specifications Physical Dimensions Environmental Specifications 24 Physical Dimensions 2...

Page 6: ...6 Keysight L Series Operating and Service Manual Installation instructions 29 Operating Instructions 30 Operator s check 30 Performance tests 33 Service instructions 33 ...

Page 7: ...tion diagram for Option 161 and Option 100 3 Figure 3 Pin function diagram for indicator 6 Figure 4 TTL control voltage states Option T24 10 Figure 5 Maximum incident power cold switching vs frequency 11 Figure 6 Power derating factor vs VSWR 12 Figure 7 Dimensions of L series coaxial multiport switches 15 Figure 8 Connection to perform quick check 17 ...

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Page 9: ...nd L720xA coaxial multiport switches 8 Table 5 RF specifications for L710xB and L720xB coaxial multiport switches 8 Table 6 RF specifications for L710xC and L720xC coaxial multiport switches 9 Table 7 Switch drive specifications for L series coaxial multiport switches 9 Table 8 TTL drive specifications for L series coaxial multiport switches Option T24 10 Table 9 L series coaxial multiport switche...

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Page 11: ...d L7106A B C are terminated switches with SP4T and SP6T configuration respectively while L7204A B C and L7206A B C are unterminated SP4Ts and SP6Ts Both terminated and unterminated L series coaxial multiport switches provide the life and repeatability for automated test and measurement signal monitoring and routing applications with reasonable cost Figure 1 L series coaxial multiport switches L710...

Page 12: ... improves measurement uncertainties Switch life is a critical consideration in production test systems satellite and antenna monitoring systems and test instrumentation The longevity of these switches increases system uptime and lowers the cost of ownership by reducing calibration cycles and switch maintenance Table 1 shows the 12 models of L series coaxial multiport switches available Table 1 Lis...

Page 13: ...neral all other RF paths are simultaneously opened by internal logic See Figure 2 for drive connection diagrams Figure 2 Drive connection diagram for Option 161 and Option 100 L7206B DC to 20 GHz SP6T Unterminated L7206C DC to 26 5 GHz SP6T Unterminated Table 1 List of L series coaxial multiport switches continued Model Frequency range Configuration Terminated unterminated ...

Page 14: ... pin for example ground pin 3 to close RF path 1 To select another RF path ensure that all unwanted RF path drive pins are disconnected from ground to prevent multiple RF path engagement Ground the drive pin which corresponds to the desired RF path To open all RF paths ensure that all RF path drive pins are disconnected from ground Then connect pin 16 to ground This feature is not available in opt...

Page 15: ...are at TTL Low Then apply TTL High to pin This feature is not available in option 100 NOTE Pin 15 must always be connected to ground to enable the electronic position indicating circuitry and drive logic circuitry In addition to the quiescent current supplying the electronic position sensing circuitry the drive current flows out of pin 15 during switching on TTL drive switches option T24 CAUTION I...

Page 16: ...he circuitry consists of a common which can be connected to an output corresponding to each RF path If multiple RF paths engaged the position indicator corresponding to each closed RF path will be connected to common The solid state relays are configured for AC and or DC operation See Table 3 for indicator specifications The electronic position indicators require that the supply 20 to 32 VDC be co...

Page 17: ... switches Keysight model number L7104A B C L7106A B C L7204A B C L7206A B C Maximum power rating Switching Non switching 1 watt average into 50 Ù internal loads W CW for terminated 2 W CW for unterminated 50 W Pk not to exceed 1 watt average for terminated 100 W Pk not to exceed 2 watt average for unterminated Life 2 million cycles minimum Switching speed 15 ms Table 3 Indicator specifications for...

Page 18: ...MA f Table 5 RF specifications for L710xB and L720xB coaxial multiport switches Keysight model number L7104B L7106B L7204B L7206B Frequency range DC to 20 GHz DC to 20 GHz Insertion loss 0 3 dB 0 015 x freq GHz 0 3 dB 0 015 x freq GHz Isolation 90 dB DC to 12 GHz 70 dB 12 to 15 GHz 65 dB 15 to 20 GHz 90 dB DC to 12 GHz 70 dB 12 to 15 GHz 65 dB 15 to 20 GHz SWR 1 20 DC to 4 GHz 1 35 4 to 12 4 GHz 1...

Page 19: ...4 GHz 1 45 12 4 to 18 GHz 1 70 18 to 20 GHz 1 20 DC to 4 GHz 1 35 4 to 12 4 GHz 1 45 12 4 to 18 GHz 1 70 18 to 20 GHz Repeatability a a Up to 2 million cycles measured at 25 C 0 03 dB 0 03 dB Characteristics 50 Ω terminated 50 Ω unterminated Connectors SMA f SMA f Table 7 Switch drive specifications for L series coaxial multiport switches Min Nominal Max Unit Supply voltage Vcc 20 24 32 V Supply c...

Page 20: ...e 4 TTL control voltage states Option T24 Table 8 TTL drive specifications for L series coaxial multiport switches Option T24 Min Nominal Max Unit High level input 20 24 32 V Low level input 200 mA Max high input current a a Vcc Max Vinput 3 85 VDC 25 50 mA ...

Page 21: ...r cold switching from 100 MHz to 18 GHz The reference conditions are as below Cold switching only NO hot switching Ambient temperature of 75oC or less Sea level 0 88 derating 15 000 feet Low VSWR 1 2 See Figure 6 for derating above 1 2 VSWR Power handling at 25 C is 100 W at 4 GHz Figure 5 Maximum incident power cold switching vs frequency ...

Page 22: ...12 Keysight L Series Operating and Service Manual Figure 6 Power derating factor vs VSWR ...

Page 23: ...ethod 107D Condition A modified Humidity Operating 95 RH at 65 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 6 directions 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 Storage 15 240 meters 50 000 feet per...

Page 24: ...ght L Series Operating and Service Manual Physical Specifications Table 10 L series coaxial multiport switches physical specifications Parameter Specification Dimensions Per Figure 7 Net weight kg lb 0 229 0 5 ...

Page 25: ...Keysight L Series Operating and Service Manual 15 Figure 7 Dimensions of L series coaxial multiport switches ...

Page 26: ...echnologies Sales and Service office Refer to the Sales and Technical Support 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 shipping container...

Page 27: ...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 measurement is the best way to determine if the switch is working properly Figure 8 Connection to perform quick check CAUTION ESD exceeding the level specified in Table 9 or RF power applied is g...

Page 28: ...8 2 For standard drive apply ground to the corresponding drive pin to close the selected path Refer to Standard drive on page 4 3 For TTL drive option T24 apply High to the corresponding drive pin to close the selected path Refer to TTL drive Option T24 on page 5 4 Perform s parameters measurement and verify against specifications in Table 4 Table 5 or Table 6 5 Repeat from step 1 until all paths ...

Page 29: ...sts The coaxial multiport switches can be tested to the accuracy of the specifications with a network analyzer or equivalent equipment of suitable accuracy If a network analyzer is available test the instrument using the procedure in the analyzer s operating manual ...

Page 30: ...s and should not be opened Repair The L series coaxial multiport switches are 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 connecting and care of your connectors refer to the Microwave Connector Care Quick Reference Card 08510 90360 ...

Page 31: ...is subject to change without notice Always refer to the English version at the Keysight website for the latest revision Keysight Technologies 2007 2019 Edition 3 March 27 2019 Printed in Malaysia L7104 90001 L7104 90001 ...

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