Keysight Technologies U3020AS62 User's And Service Manual

Signal distribution test set
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Keysight Technologies
U3020AS62
DC to 26.5 GHz
Signal Distribution Test Set
User's and
Service Guide

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Summary of Contents for Keysight Technologies U3020AS62

  • Page 1 Keysight Technologies U3020AS62 DC to 26.5 GHz Signal Distribution Test Set User’s and Service Guide...
  • Page 2 DOCUMENT IS PROVIDED “AS IS,” computer software,” as defined by AND IS SUBJECT TO BEING Federal Acquisition Regulation © Keysight Technologies. 2013-2020 CHANGED, WITHOUT NOTICE, IN (“FAR”) 2.101. Pursuant to FAR FUTURE EDITIONS. FURTHER, TO THE 12.212 and 27.405-3 and...
  • Page 3: Table Of Contents

    Table of Contents Keysight U3020AS62 - User’s and Service Guide Description............... .6 Verifying the Shipment .
  • Page 4 Table of Contents Safety and Information ............. 30 Introduction .
  • Page 5 U3020AS62 Keysight U3020AS62 User's and Service Guide...
  • Page 6: Description

    Description Description The Keysight U3020AS62 Test Set is a DC to 26.5 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 two EIA units high.
  • Page 7: General Performance

    Test Set. • U3022AS62 maximum power is 50 W. Environmental Tests The U3020AS62 complies with all applicable safety and regulatory requirements for the intended location of use. • Operating Environment (Indoor Use) • Operating Temperature 0 to 55 °C •...
  • Page 8: Dimensions And Space Requirements

    U3020AS62 General Performance Dimensions and Space Requirements Standard installation of the U3020AS62 includes configuration and installation on a customer provided lab bench, or table top of adequate size and strength. Table 2 Test Set Dimensions Item Length/Weight Width 42.5 cm (16.73 in) Depth 58 cm (22.83 in)
  • Page 9: Rf Channel Performance

    Input Ports 1 to Input Ports 1 to 6 Frequency Range A & B (internal termination) DC to 1.0 GHz 1.0 to 6.0 GHz 6.0 to 12 GHz 12 to 20 GHz 20 to 26.5 GHz Keysight U3020AS62 User's and Service Guide...
  • Page 10: Front And Rear Panel Features

    All connectors are 3.5 mm female. Instrument State LEDs When the power is applied to the U3020AS62, 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 firmware.
  • Page 11 Instrument programming error or self-test error. Green Error queue is read using SYSTem:ERRor? Green ATTN Instrument identification. Activated from instrument Web interface: Green (flashing) ON: Turn on Front Panel Interface Indicator OFF: Turn off Front Panel Interface Indicator Green Keysight U3020AS62 User's and Service Guide...
  • Page 12 Always use the three-prong AC power cord supplied with this product. Failure to ensure adequate earth grounding by not using this cord may cause product damage and the risk of electrical shock. Keysight U3020AS62 User's and Service Guide...
  • Page 13: Controlling The Test Set

    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 7 on page Keysight U3020AS62 User's and Service Guide...
  • Page 14: Test Set Control Commands

    Select Port 6 Input of Chan A and B All unselected Port Inputs are terminated TERM_ALL_INPUTS Terminate all Input Ports (50 Ohm) Output Ports are not terminated LED_ALL All LEDs ON Diagnostic Check LED_OFF All LEDs OFF Diagnostic Check Keysight U3020AS62 User's and Service Guide...
  • Page 15: Instrument Settings

    4. The available computer interfaces are configured during installation of the Keysight IO Libraries and are displayed in the left column (Explorer Pane). The properties of the configured interface are displayed in the right column (Propertied Pane). Figure 5 Explorer and Properties Pane Keysight U3020AS62 User's and Service Guide...
  • Page 16: Configuring The Gpib Interface

    1. Select the Keysight Control icon > Keysight Connection Expert. If a GPIB card is installed in your computer, the GPIB interface was configured during installation of the IO libraries and is displayed in the Explorer Pane of the “Welcome” Screen. Figure 7 Keysight Connection Expert Keysight U3020AS62 User's and Service Guide...
  • Page 17: Adding Instruments To The Gpib Configuration

    You can also queries the U3020A for the IP address it was assigned to. Example The following 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 Response: "169.254.149.35" Keysight U3020AS62 User's and Service Guide...
  • Page 18: Auto Ip Address Command

    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 returns the current DHCP setting: SYST:COMM:LAN:DHCP? Typical Response: 0 Keysight U3020AS62 User's and Service Guide...
  • Page 19: Dns Command

    If you change the Domain Name, you must cycle power on the U3020A to activate the new address. 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 Keysight U3020AS62 User's and Service Guide...
  • Page 20: Gateway Address Command

    Example The following command defines a Host Name: SYST:COMM:LAN:HOST "U3020AS62-0001" The following query returns the Host Name currently being used by the instrument (the quotes are also returned): SYST:COMM:LAN:HOST? Typical Response: "U3020AS62-0001" Keysight U3020AS62 User's and Service Guide...
  • Page 21: Gpib Address Command

    The following 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 For a complete list of SCPI commands, refer to the Keysight L449xA RF Switch Platform User’s Guide (L4490-90001). Keysight U3020AS62 User's and Service Guide...
  • Page 22: Performance Verification

    4. PNA frequency range: 10 MHz to 26.5 GHz. 5. Set the PNA to Measure S21, Scale to 5 dB/Div. Figure 8 Equipment Setup MEASUREMENT Test Set Test Set To Instrument To Instrument Controller Controller Keysight U3020AS62 User's and Service Guide...
  • Page 23: Measurement Setup

    9. To verify each Input B Port to 1B through 6B, connect the PNA Port 1 cable to test set Output Port B connector. 10.Connect the PNA Port 2 cable to each Input B port, and execute the corresponding sequence command <ROUT:SEQ:TRIG SEL_PORTx> to select Port x. Figure 9 Typical S21 Response Plot Keysight U3020AS62 User's and Service Guide...
  • Page 24: Service Information

    • Conductive floor-mat and heal-strap combination Both types, when used together, provide a significant level of ESD protection. To ensure user safety, static-safe accessories must provide at least 1 MW of isolation from ground. Keysight U3020AS62 User's and Service Guide...
  • Page 25: Theory Of Operation

    U3020AS62 Service Information Theory of Operation This section provides a general description of the U3020AS62 Test Set, followed by a more detailed operating theory. The operation of each component group is briefly described to the assembly level only. If you need to disassemble the instrument, be sure to work at an anti-static workstation and use a grounded wrist strap to prevent damage from electrostatic discharge (ESD).
  • Page 26: Controller Module And Power Supply

    I/O port and the front panel Port LED board. LED Indicator Board This board provides an LED indication of the Port setting in the Test Set. The LED indicator board is driven by the digital IO of the Test Set. Keysight U3020AS62 User's and Service Guide...
  • Page 27: Troubleshooting

    Measure the DC voltage between the red and black wires. The red wire should measure approximately +12 Vdc. d. If any voltages are not present, the controller module power supply will need to be replaced. Keysight U3020AS62 User's and Service Guide...
  • Page 28: Front Panel Input Port Leds

    Port to be selected, it is possible that the instrument Power On preset set has been corrupted. c. Contact Keysight Technologies for support in recovering this preset set. d. If no audible sound is heard, remove the top cover of the instrument.
  • Page 29 U3020AS62 Service Information Figure 11 Top View Controller Module and Power Supply Digital I/O Relay Driver (L4490A Option 004) I/O Distribution Distribution Bd. (Y1151A) Switch Driver 34945 Ext. RF Switches Channel A and B Keysight U3020AS62 User's and Service Guide...
  • Page 30: Safety And Information

    The documentation contains information and warnings that must be followed by the user to ensure safe operation and to maintain the product in a safe condition. Keysight U3020AS62 User's and Service Guide...
  • Page 31: Before Applying Power

    (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. Keysight U3020AS62 User's and Service Guide...
  • Page 32: Connector Care And Cleaning Precautions

    Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing the instrument. To prevent electrical shock, disconnect the Keysight Technologies U3020AS62 from mains electrical supply before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts.
  • Page 33: Safety And Regulatory Information

    Universal recycling symbol. This symbol indicates compliance with the China standard GB 18455-2001 as required by the China RoHS regulations for paper/fiberboard packaging. South Korean Certification (KC) mark. It includes the marking’s identifier code in the format shown. R-R-Kst- ZZZZZZZ Keysight U3020AS62 User's and Service Guide...
  • Page 34: Emc Compliance

    Acoustic Statement (European Machinery Directive) Acoustic noise emission LpA <70 dB Operator position Normal operation mode per ISO 7779 To find a current Declaration of Conformity for a specific Keysight product, go to: https://regulations.about.keysight.com/DoC/default.htm Keysight U3020AS62 User's and Service Guide...
  • Page 35: Keysight Support, Services, And Assistance

    Keysight for repair. If you wish to send your instrument to Keysight Technologies for service or repair: • Include a complete description of the service requested or of the failure and a description of any failed test and any error message.
  • Page 36 This information is subject to change without notice. © Keysight Technologies 2013-2020 Edition 3, October 2020 Supersedes: June 2020 U3020-90011 www.keysight.com...

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