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Keysight Technologies

U3020AS16

Multiport

Test Set

User’s and
Service Guide

Notice: This document contains references

to Agilent. Please note that Agilent’s Test

and Measurement business has become

Keysight Technologies. For more

information, go to

www.keysight.com

Содержание U3020AS16

Страница 1: ...Multiport Test Set User s and Service Guide Notice This document contains references to Agilent Please note that Agilent s Test and Measurement business has become Keysight Technologies For more info...

Страница 2: ...Software to U S government customers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula Th...

Страница 3: ...st Set and Making Measurements 15 LAN Connection Using Your Company s Intranet 15 Test Set Control Commands 16 Performance Verification 19 Equipment Required 19 Equipment Setup 19 Measurement Setup 20...

Страница 4: ...35 Front Panel Instrument State LEDs 35 Front Panel Input Port LEDs 36 RF Switch is not Switching 36 Safety and Regulatory Information 40 Introduction 40 Safety Earth Ground 40 Declaration of Conform...

Страница 5: ...U3020AS16 Keysight U3020AS16 User s and Service Guide 5...

Страница 6: ...the 16 test ports The Keysight U3020AS16 has the following key features The Keysight U3020AS16 will be referred to as the Test Set throughout this document Frequency Range of Operation 10 MHz to 26 5...

Страница 7: ...on page 46 Keep the damaged shipping materials if any for inspection by the carrier and an Keysight Technologies representative Table 1 U3020AS16 Accessories Supplied Description Part Number User s an...

Страница 8: ...motor operated equipment should not be placed on the same AC line that powers the Test Set U3022AS16 maximum power is 50 W Environmental Tests The U3020AS16 complies with all applicable safety and re...

Страница 9: ...quate size and strength General RF Switch Specifications Table 2 Test Set Dimensions Item Length Weight Width 42 5 cm 16 73 in Depth 57 4 cm 23 in Height 17 7 cm 7 in Weight 13 8 kg 30 5 lb Table 3 In...

Страница 10: ...Loss dB 10 MHz to 500 MHz 1 0 Return Loss1 dB 10 MHz to 20 GHz 10 0 20 GHz to 26 5 GHz 6 0 Isolation dB 10 MHz to 26 5 GHz 90 0 1 All front test ports when internally terminated rpterm or tpterm 0 5 G...

Страница 11: ...f the LEDs Standby Switch Note that this switch is Standby only not a line switch The main power cord can be used as the system disconnecting device It disconnects the mains circuits from the mains su...

Страница 12: ...rm is executed all Transmission Port side switches 1 16 will be terminated to 50 Ohms and all yellow LEDS will be turned OFF When the command trans_term is executed the Transmission Port will be termi...

Страница 13: ...n 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 downl...

Страница 14: ...fiable and is easily reached by the operator The detachable power cord is the instrument disconnecting device It disconnects the mains circuits from the mains supply before other parts of the instrume...

Страница 15: ...nstrument should be viewable if the LAN connection is working Select the following screen control buttons to access the SCPI command control window 1 Browser Web Connect control button on the left sid...

Страница 16: ...programmable switches Measurement Setup Example With the following sequence commands rp4 and tp14 the Test Set will position the internal RF switches to create the signal paths needed to measure the D...

Страница 17: ...nselected Ports are Terminated 14 rp14 Reflection Port to Port 14 Unselected Ports are Terminated 15 rp15 Reflection Port to Port 15 Unselected Ports are Terminated 16 rp16 Reflection Port to Port 16...

Страница 18: ...ransmission Port to Port 16 Unselected Ports are Terminated 35 tpterm Transmission Side Ports 1 16 Terminated 36 led_grn ALL Green LEDs ON Ports 1 16 are Unchanged 37 LED Diagnostic Check 38 led_grnof...

Страница 19: ...cables with 3 5 mm connectors Coax Attenuators 3 5 mm Fixed 10 dB 2 Coax Adapter 3 5 mm female female Equipment Setup 1 Configure PNA and Test Set as shown in Figure 11 2 Turn On the PNA and Test Set...

Страница 20: ...ecute the sequence command ROUT SEQ TRIG rp1 to create a Reflection Port to Port 1 signal path Figure 6 is representation of the S21 response trace Markers shown are not provided in the procedure abov...

Страница 21: ...Figure 7 U3020AS16 Performance Verification Typical Port Match Plot Figure 8 Typical Port Isolation Plot Keysight U3020AS16 User s and Service Guide 21...

Страница 22: ...nnection Expert from the application window Figure 9 Agilent Connection Expert Locating the Instrument The Connection Expert opens with a Welcome Screen and a window similar to that shown in Figure 9...

Страница 23: ...t on LAN TCPIP0 OK Agilent 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...

Страница 24: ...1 Select Add Instrument on the tool bar 2 Select GPIB Interface OK 3 Select U3020A s Address in the GPIB address drop down list OK Factory set address 26 Changing the GPIB Address The U3020A GPIB addr...

Страница 25: ...ng command sets the IP address SYST COMM IPAD 169 254 149 35 The following query returns the IP address currently being used by the instrument quotes are also returned SYST COMM LAN IPAD Typical Respo...

Страница 26: ...during power on If you change the DHCP setting you must cycle power on the U3020A to activate the new setting Example The following command disables DHCP SYST COMM LAN DHCP OFF The following query re...

Страница 27: ...t Settings The following query returns the DNS address currently being used by the instrument the quotes are also returned SYST COMM LAN DNS Typical Response 198 105 232 4 Keysight U3020AS16 User s an...

Страница 28: ...the U3020A The specified IP Address sets the Default Gateway which allows the instrument to communicate with systems that are not on the local subnet Thus this is the Default Gateway where packets are...

Страница 29: ...wing query returns the Host Name currently being used by the instrument the quotes are also returned SYST COMM LAN HOST Typical Response U3020AS16 0101 GPIB Address Command GPIB Address Command Descri...

Страница 30: ...1 U3020AS16 Instrument Settings For a complete list of SCPI commands refer to the Keysight L449xA RF Switch Platform User s Guide L4490 90001 30 Keysight U3020AS16 User s and Service Guide...

Страница 31: ...rom the packaging in an anti static area ensuring that the correct anti static precautions are taken Two types of ESD protection are listed below Purchase acceptable ESD accessories from your local su...

Страница 32: ...ge from electrostatic discharge ESD See Electrostatic Discharge Protection on page 31 Test Set System Operation Figure 13 illustrates the components and interconnects of the Test Set The Test Set s ma...

Страница 33: ...U3020AS16 Service Information Figure 13 Test Set Block Diagram Keysight U3020AS16 User s and Service Guide 33...

Страница 34: ...odule This module provides the bias and control signals for the RF Switches Distribution Board The Distribution board Y1151A and Y1154A provides a passive control signal interface between the 34945EXT...

Страница 35: ...ing 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 vol...

Страница 36: ...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 so...

Страница 37: ...e Information Figure 14 87106C x2 87106C x4 N1810UL x16 Layout Top View Component Locations 87106C x4 S18 S17 S19 S20 S21 S22 S23 S24 S25 S26 N1810UL x16 DC DC Converter Keysight U3020AS16 User s and...

Страница 38: ...ormation 1 Figure 15 Bottom View Component Locations Controller Module Power Supply Digital I O Relay Driver 34945 Ext 34945 Ext Slave Master S23 S24 S21 S19 S17 S22 S20 S18 38 Keysight U3020AS16 User...

Страница 39: ...U3020AS16 Service Information Figure 16 34945 EXT Distribution Boards Slave Y1151A Y1150A Y1151A Y1151A Master Keysight U3020AS16 User s and Service Guide 39...

Страница 40: ...y interruption of the protective conductor inside or outside the product is likely to make the product dangerous Intentional interruption is prohibited Always use the three prong AC power cord supplie...

Страница 41: ...ies with European EMC Directive 2014 30 EU IEC EN 61326 2 1 CISPR Pub 11 Group 1 Class A AS NZS CISPR 11 ICES NMB 001 Acoustic Statement European Machinery Directive Acoustic noise emission LpA 70 dB...

Страница 42: ...ied with this product Failure to ensure adequate earth grounding by not using this cord may cause product damage and the risk of electrical shock This product is designed for use in Installation Categ...

Страница 43: ...expose the user to dangerous voltages Disconnect the instrument from all voltage sources before opening No operator serviceable parts inside Refer servicing to qualified personnel To prevent electric...

Страница 44: ...ry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally If flammable cleaning materials are used the material shall not be stored or left open...

Страница 45: ...demark of the European Community The Keysight email address is required by EU directives applicable to our product The CSA mark is a registered trademark of the CSA International This is a symbol of a...

Страница 46: ...entative can determine the warranty status of your unit Shipping Your Product to Keysight for Service or Repair IMPORTANT Keysight Technologies reserves the right to reformat or replace the internal h...

Страница 47: ...Keysight U3020AS16 User s and Service Guide 47...

Страница 48: ...This information is subject to change without notice Keysight Technologies 2016 2019 Edition 4 September 2019 Supersedes July 2019 www keysight com...

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