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Keysight U3020A User’s and Service Guide

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Содержание U3020AS26

Страница 1: ...Keysight U3020AS26 Switching Test Set User s and Service Guide ...

Страница 2: ...rights customarily provided to the public to use modify reproduce release perform dis play or disclose commercial computer soft ware or commercial computer 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 purs...

Страница 3: ...ng 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 li...

Страница 4: ...4 Keysight U3020A User s and Service Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Страница 5: ...making measurements 19 LAN connection using your companies intranet 19 Test set control commands 19 Adding instruments to the LAN interface 20 Performance Verification 27 Equipment required 27 Equipment setup 27 Measurement setup 28 Service Information 29 Electrostatic discharge protection 29 Theory of operation 29 Troubleshooting 31 Safety and Information 34 Introduction 34 Safety earth ground 34...

Страница 6: ...6 Keysight U3020A User s and Service Guide Contacting Keysight 39 Shipping your product to Keysight for service or repair 39 ...

Страница 7: ...e 2 Rear panel 18 Figure 3 Keysight Connection Expert 20 Figure 4 Explorer and Properties Pane 21 Figure 5 Adding instruments 21 Figure 6 Keysight Connection Expert 22 Figure 7 Equipment setup 27 Figure 8 Typical S21 response plot 28 Figure 9 Test set block diagram 30 Figure 10 Top view 33 ...

Страница 8: ...8 Keysight U3020A User s and Service Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK ...

Страница 9: ...ers 14 Table 3 Performance characteristics amplitude response 14 Table 4 Performance characteristics amplitude tracking 14 Table 5 Performance characteristics phase tracking 15 Table 6 Port match 15 Table 7 Instrument state LED definitions 17 Table 8 Test set control commands 20 Table 9 Compliance with German noise requirements 38 ...

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Страница 11: ... 5 GHz Signal Distribution instrument The Test Set functionally is a Dual SP6T 6 Port Latching Terminated switch in which both switches are functionally ganged together The Test Set mainframe is a rack mountable 2 EIA units high Switch control is only processed via the LAN or GPIB rear panel interfaces ...

Страница 12: ...pment Inspect the shipping container If the container or packing material is damaged it should be kept until the contents of the shipment have been checked mechanically and electrically If there is physical damage refer to Contacting Keysight on page 39 Keep the damaged shipping materials if any for inspection by the carrier and a Keysight Technologies representative ...

Страница 13: ...s for the intended location of use Operating environment indoor use Operating temperature 0 to 55 C Storage temperature 40 to 70 C Operating altitude 0 to 2000 meters 6 562 feet The instrument can safely operate in a relative humidity of 80 for temperatures to 31 C decreasing linearly to 50 relative humidity at 40 C Dimensions and space requirements Standard installation of the U3020AS26 includes ...

Страница 14: ...llion cycles minimum Switch speed 15 ms Table 3 Performance characteristics amplitude response Amplitude response Port IN to OUT Frequency range Insertion loss dB DC to 1 0 GHz 0 5 1 0 to 6 0 GHz 1 2 6 0 to 12 GHz 2 0 12 to 20 GHz 2 5 20 to 26 5 GHz 3 7 Table 4 Performance characteristics amplitude tracking Amplitude tracking channel A to B Frequency range Amplitude tracking dB DC to 1 0 GHz 0 05 ...

Страница 15: ...tracking skew Spec ps DC to 1 0 GHz 40 1 0 to 6 0 GHz 5 6 0 to 12 GHz 6 12 to 20 GHz 8 20 to 26 5 GHz 20 26 0 to 26 5 GHz 40 Table 6 Port match Frequency range Output ports A B Input ports 1 to 6 Input ports 1 to 6 internal termination DC to 1 0 GHz 30 30 32 1 0 to 6 0 GHz 18 18 20 6 0 to 12 GHz 10 10 12 12 to 20 GHz 10 10 11 20 to 26 5 GHz 7 7 8 ...

Страница 16: ...here are two separate signal channels A and B Each channel has one output port and six input ports All connectors are 3 5 mm female Instrument state LEDs When the power is applied to the U3020AS26 the instrument enters its power on sequence which requires several seconds to complete The LEDs provide information on the state of the instrument during power on and during upgrades of the instrument fi...

Страница 17: ...ed Green No LAN connection due to disconnected LAN cable failure to acquire and IP address waiting for DHCP assigned address ATTN LAN PWR Green flashing Green Green Instrument busy state firmware download LAN LED red if download over GPIB lengthy instrument operation in progress ATTN LAN PWR Red flashing Green Green Instrument programming error or self test error Error queue is read using SYSTem E...

Страница 18: ...ator The detachable power cord is the instrument disconnecting device It disconnects the mains circuits from the mains supply before other parts of the instrument The front panel switch is only a standby switch and is not a LINE switch Alternatively an externally installed switch or circuit breaker which is readily identifiable and is easily reached by the operator may be used as a disconnecting d...

Страница 19: ...button on the left side of the screen 2 Allow Full control 3 Commands Once the connection between the controller and the Test Set has been established LAN or GPIB the test set can be controlled using SCPI commands Refer to Table 8 Test set control commands The Test Set has predefine sequence command sets defined at the factory and stored in the non volatile memory of the controller module If the s...

Страница 20: ...column Explorer Pane The properties of the configured interface are displayed in the right column Propertied Pane Table 8 Test set control commands Commands Description Comments SEL_PORT1 Select Port 1 Input of Chan A and B All unselected Port Inputs are terminated SEL_PORT2 Select Port 2 Input of Chan A and B All unselected Port Inputs are terminated SEL_PORT3 Select Port 1 Input of Chan A and B ...

Страница 21: ...dd LAN Instrument on LAN TCPIP0 OK Keysight Connection Expert performs an automatic find of all instruments on the same subnet as the computer 3 Select the desired instruments from the list and click OK Communication paths to the instruments are verified and the instruments are added to the configured interface Figure 5 Adding instruments Properties Pane Explorer Pane ...

Страница 22: ...ress drop down list OK Factory set address 26 Changing the GPIB address The U3020A GPIB address can only be changed programmatically The GPIB address command is SYSTem COMMunicate GPIB ADDRess address When the address is changed the new GPIB address is not updated in the Keysight Connection Expert if the instrument was previously configured 1 From the Keysight Connection Expert application window ...

Страница 23: ...e of the Dynamic Host Configuration Protocol DHCP Syntax SYSTem COMMunicate LAN DHCP OFF 0 ON 1 SYSTem COMMunicate LAN DHCP When DHCP is enable factory setting the instrument will try to obtain an IP address from the DHCP server If a DHCP server is found it will assign a Dynamic IP address Subnet Mask and Default Gateway to the instrument When the DHCP is disable or unavailable the instrument will...

Страница 24: ...unicate LAN DOMain Example The following command defines the Domain Name SYST COMM LAN DOM www keysight com The following query returns the Domain Name currently being used by the instrument SYST COMM LAN DOM Typical response www keysight com Gateway address command This command assigns a Default Gateway for the U3020A The specified IP Address sets the Default Gateway which allows the instrument t...

Страница 25: ...anslated into an IP address Syntax SYSTem COMMunicate LAN HOSTname name SYSTem COMMunicate LAN HOSTname Example The following command defines a Host Name SYST COMM LAN HOST U3020AS26 0001 The following query returns the Host Name currently being used by the instrument the quotes are also returned SYST COMM LAN HOST Typical response U3020AS26 0001 GPIB address command GPIB address command descripti...

Страница 26: ... command sets the GPIB address to 10 SYST COMM GPIB ADDR 10 The following query returns the current GPIB address SYST COMM GPIB ADDR Typical response 10 NOTE For a complete list of SCPI commands refer to the Keysight L449xA RF Switch Platform User s Guide L4490 90001 ...

Страница 27: ...with up to 26 5 GHz frequency range RF coaxial cables with 3 5 mm connectors Equipment setup 1 Configure PNA and Test Set as shown in Figure 7 2 Turn on the PNA and Test Set The Test Set LED Indicators should indicate the following after 1 minute ATTN OFF LAN ON PWR ON 3 Preset the PNA 4 PNA frequency range 10 MHz to 26 5 GHz 5 Set the PNA to Measure S21 Scale to 5 dB Div Figure 7 Equipment setup ...

Страница 28: ... adapter from the setup 4 Connect PNA Port 1 cable to the Test Set Output Port A 5 Connect PNA Port 2 cable to the Test Set Input Port 1 A 6 Establish control of the Test Set with the controller via the LAN connection 7 Execute the sequence command ROUT SEQ TRIG SEL_PORT1 to select Port 1 Figure 8 is representation of the S21 response trace Markers shown are not provided in the procedure above Fig...

Страница 29: ...otection To ensure user safety static safe accessories must provide at least 1 MW of isolation from ground Theory of operation This section provides a general description of the U3020AS26 Test Set followed by a more detailed operating theory The operation of each component group is briefly described to the assembly level only Test set system operation Figure 9 illustrates the components and interc...

Страница 30: ...de the module It provides regulated voltages to all assemblies in the Test Set The internal DC voltage has the following nominal specification 24 V 12 V 5 V The controller board is the brain of the Test Set it handles all the communication between the Controller and the Test Set via LAN or GPIB connectivity 39495EXT module This module provides the bias and control signals for the RF Switches Distr...

Страница 31: ... after depressing the front panel button continue with the following procedure a Remove the top cover of the instrument b Ensure that the ribbon cable and 2 wire connector are properly in place c Measure the DC voltage between the red and black wires The red wire should measure approximately 12 Vdc d If the 12 Vdc is not present on the red wire measure the three labeled output power supply voltage...

Страница 32: ... Power Supply voltage are all present suspect the front panel Input Port LED board or the Controller Module I O section RF switch is not switching 1 If the RF Switches are not operating continue with the following procedure a Determined if you can hear an audible switching sound b If an audible sound is heard but the switch is not being properly control in order for the correct Port to be selected...

Страница 33: ...A User s and Service Guide 33 Figure 10 Top view Controller module power supply DIstribution bd Y1151A Switchdriver 34945 ext Digital I O relay driver L4490A option 004 I O DIstribution bd RF switches channel A B A B ...

Страница 34: ...ted in accordance with CAN CSA 22 2 No 61010 1 04 UL Std No 61010 1 2nd Edition Before applying power Verify that the premises electrical supply is within the range of the instrument The instrument has an autoranging power supply WARNING This is a Safety Class I Product provided with a protective earthing ground incorporated in the power cord The mains plug shall be only be inserted in a socket ou...

Страница 35: ...ambient temperature outside the cabinet must be less than the maximum operating temperature of the instrument by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts forced convection must be used WARNING These servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing unl...

Страница 36: ... prevent electrical shock do not remove covers WARNING The detachable power cord is the instrument disconnecting device It disconnects the mains circuits from the mains supply before other parts of the instrument The front panel switch is only a standby switch and is not a LINE switch disconnecting device WARNING To prevent electrical shock disconnect the Keysight U3020AS26 from mains electrical s...

Страница 37: ...to identify a terminal which is internally connected to the product frame or chassis The CE mark is a registered trademark of the European Community If accompanied by a year it is when the design was proven The CSA mark is a registered trademark of the CSA International This instrument complies with Canada CSA 22 2 No 61010 1 04 This is a symbol of an Industrial Scientific and Medical Group 1 Clas...

Страница 38: ...p 1 class A AS NZS CISPR 11 This ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB du Canada Table 9 Compliance with German noise requirements Acoustic noise emission Geraeuschemission LpA 70 dB LpA 70 dB Operator position am Arbeitsplatz Normal operation normaler Betrieb per ISO 7779 nach DIN 45635 t 19 ...

Страница 39: ...tion as it was originally shipped Ship the analyzer using the original or comparable antistatic packaging materials Contact Keysight for instructions on where to ship your analyzer NOTE There are many other repair and calibration options available from the Keysight Technologies support organization These options cover a range of service agreements with varying response times Contact Keysight for a...

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Страница 41: ... is subject to change without notice Always refer to the Keysight website for the latest revision Keysight Technologies 2012 2019 Edition 2 December 16 2019 Printed in Malaysia U3020 90010 U3020 90010 www keysight com ...

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