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Keysight Technologies U3020AS16 User's And Service Manual

Multiport test set
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Keysight Technologies
U3020AS16 Multiport
Test Set
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.
User's and
Service Guide

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Summary of Contents for Keysight Technologies U3020AS16

  • Page 1 Keysight Technologies U3020AS16 Multiport Test Set 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. User’s and Service Guide...
  • Page 2 COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH government requirements THESE TERMS, THE WARRANTY beyond those set forth in the © Keysight Technologies, Inc. 2016, TERMS IN THE SEPARATE EULA shall apply, except to the 2019 AGREEMENT WILL CONTROL.

  • Page 3: Table Of Contents

    Table of Contents Keysight U3020AS16 User’s and Service Guide Description............... .6 Verifying the Shipment .
  • Page 4 Table of Contents Service Information ..............31 Replaceable Parts .
  • Page 5 U3020AS16 Keysight U3020AS16 User's and Service Guide...

  • Page 6: Description

    U3020AS16 Description Description The Keysight U3020AS16 is a 10 MHz to 26.5 GHz switching Test Set that allows the user to make Reflection and Transmission measurements with 16 available test ports when combined with a 2-port network analyzer. Transmission measurements can also be made between any pair of the 16 test ports.

  • Page 7: Verifying The Shipment

    If there is physical damage refer to “Contacting Keysight” 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...

  • Page 8: General Performance

    AC line that powers the Test Set. — U3022AS16 maximum power is 50 W. Environmental Tests The U3020AS16 complies with all applicable safety and regulatory requirements for the intended location of use. — Operating Environment (Indoor Use) —...

  • Page 9: Dimensions And Space Requirements

    U3020AS16 General Performance Dimensions and Space Requirements Standard installation of the U3020AS16 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 57.4 cm (23 in)

  • Page 10: Rf Channel Performance

    Return Loss (-dB) 10 MHz to 20 GHz 10.0 20 GHz to 26.5 GHz Isolation (> dB) 10 MHz to 26.5 GHz 90.0 1. All front test ports when internally terminated (rpterm or tpterm). Keysight U3020AS16 User's and Service Guide...

  • Page 11: Front And Rear Panel Features

    The LAN reset button restores the instrument's default LAN configuration. Instrument State LEDs When the power is applied to the U3020AS16, 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 upgrades of the instrument firmware.
  • Page 12 To avoid this switch configuration error, don't send switch commands that select the same Test Port. Keysight U3020AS16 User's and Service Guide...
  • Page 13 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 Green OFF: Turn off Front Panel Interface Indicator Keysight U3020AS16 User's and Service Guide...
  • Page 14 Always use the three-prong AC power cord supplied with this product. Failure to ensure adequate grounding by not using this cord may cause damage to the product. Keysight U3020AS16 User's and Service Guide...

  • Page 15: Controlling The Test Set

    Connect the Test Set and your controlling computer to an active instrument LAN line. Open the Internet browser application on the computer. Enter this default web address on your browser application: http://U3020AS16-xxxx The Welcome screen for the instrument should be viewable if the LAN connection is working.

  • Page 16: Test Set Control Commands

    "rp4" will create a signal path from Refl Port to Port 4. "tp14" will create a signal path from Trans Port to Port 14. Measurement Example Figure 4 Port 1 Port 2 REFL TRANS Test Set Keysight U3020AS16 User's and Service Guide...
  • Page 17 Transmission Port to Port 8 Unselected Ports are Terminated Transmission Port to Port 9 Unselected Ports are Terminated tp10 Transmission Port to Port 10 tp11 Transmission Port to Port 11 Unselected Ports are Terminated Keysight U3020AS16 User's and Service Guide...
  • Page 18 Transmission Port Terminated LED Diagnostic Check led_grn ALL Green LEDs ON ALL Green LEDs OFF led_grnoff LED Diagnostic Check led_yel ALL Yellow LEDs ON LED Diagnostic Check led_yeloff ALL Yellow LEDs OFF LED Diagnostic Check Keysight U3020AS16 User's and Service Guide...

  • Page 19: Performance Verification

    — 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 5 Equipment Setup, Insertion Loss Keysight U3020AS16 User's and Service Guide...

  • Page 20: Measurement Setup

    9. Execute each of the available switch path selections from the SCIP command listing and observe that the correct Status LED display is ON, and that the S21 path response is similar to that provided in Figure Figure 6 Typical Insertion Loss Plot Keysight U3020AS16 User's and Service Guide...
  • Page 21 U3020AS16 Performance Verification Figure 7 Typical Port Match Plot Figure 8 Typical Port Isolation Plot Keysight U3020AS16 User's and Service Guide...

  • Page 22: Instrument Settings

    The available computer interfaces are configured during installation of the Agilent 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). Keysight U3020AS16 User's and Service Guide...
  • Page 23 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 11 Adding Instruments Keysight U3020AS16 User's and Service Guide...

  • Page 24: Configuring The Gpib Interface

    1. From the Agilent Connection Expert application window, highlight the instrument that's address was changed and click Change Properties in the Configurable Properties application window, change the address to the new address setting and select OK. Keysight U3020AS16 User's and Service Guide...

  • Page 25: Lan Configuration Commands

    IP address to the U3020A when on a network that does not have DHCP servers. Syntax: SYSTem:COMMunicate:LAN:AUTOip {OFF|0|ON|1} SYSTem:COMMunicate:LAN:AUTOip? Example: The following command disable the Auto-IP: SYST:COMM:LAN:AUTOIP OFF The following query returns the current Auto-IP setting: SYST:COMM:LAN:AUTOIP? Typical Response: 0 Keysight U3020AS16 User's and Service Guide...

  • Page 26: Dchp Command

    Syntax: SYSTem:COMMunicate:LAN:DNS <address> SYSTem:COMMunicate:LAN:DNS? If you change the DNS address, you must cycle power on the U3020A to activate the new address. Example: The following command sets the DNS address: SYST:COMM:LAN:DNS 198.105.232.4 Keysight U3020AS16 User's and Service Guide...
  • Page 27 U3020AS16 Instrument 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 and Service Guide...

  • Page 28: Domain Name Command

    Example: The following command sets the Default Gateway address: SYST:COMM:LAN:GATEWAY 255.255.20.11 The following query returns the Default Gateway address currently being used by the instrument (the quotes are also returned). SYST:COMM:LAN:GATEWAY? Typical Response: "255.255.20.11" Keysight U3020AS16 User's and Service Guide...

  • Page 29: Host Name Command

    If you change the GPIB address, you must cycle power on the U3020A to activate the new address. Example: The following command sets the GPIB address to 26: SYST:COMM:GPIB:ADDR 26 The following query returns the current GPIB address: SYST:COMM:GPIB:ADDR? Typical Response: 26 Keysight U3020AS16 User's and Service Guide...
  • Page 30 U3020AS16 Instrument Settings For a complete list of SCPI commands, refer to the Keysight L449xA RF Switch Platform User’s Guide (L4490-90001). Keysight U3020AS16 User's and Service Guide...

  • Page 31: Service Information

    U3020AS16 Service Information Service Information There are many other repair and calibration options available from the Keysight Technologies support organization. The options cover a range of service agreements with varying response times. Contact Keysight for additional information on available service agreements for this product.

  • Page 32: Theory Of Operation

    U3020AS16 Service Information Theory of Operation This section provides a general description of the U3020AS16 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 33: Test Set Block Diagram

    U3020AS16 Service Information Figure 13 Test Set Block Diagram Keysight U3020AS16 User's and Service Guide...

  • Page 34: Controller Mode And Power Supply

    DC-DC Converter Module (24 Vdc Switch Drive) This module is an addition that will allow a faster switching configuration. It employs the 12 Vdc mainframe power supply to increase the needed 24 Vdc switch drive source. Keysight U3020AS16 User's and Service Guide...

  • Page 35: 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 U3020AS16 User's and Service Guide...

  • Page 36: Front Panel Input Port Leds

    Controller Module at the green connector. g. Measure the DC-DC Converter input (12 Vdc) and output (24 Vdc). h. If any voltages are not present, the Controller Module Power Supply will need to be replaced. Keysight U3020AS16 User's and Service Guide...
  • Page 37 U3020AS16 Service Information DC-DC Converter Figure 14 Top View (Component Locations) 87106C (x2) 87106C (x4) N1810UL (x16) 87106C (x4) N1810UL (x16) Layout Keysight U3020AS16 User's and Service Guide...
  • Page 38 U3020AS16 Service Information Figure 15 Bottom View (Component Locations) Controller Module & Power Supply Digital I/O Relay Driver 34945 Ext. 34945 Ext. (Master) (Slave) Keysight U3020AS16 User's and Service Guide...
  • Page 39 U3020AS16 Service Information Figure 16 34945 EXT (Distribution Boards) Y1151A Slave Master Y1150A Y1151A Y1151A Keysight U3020AS16 User's and Service Guide...

  • Page 40: Safety And Regulatory Information

    Declaration of Conformity A copy of the Declaration of Conformity is available upon request, or a copy is available on the Keysight Technologies web site at: https://regulations.about.keysight.com/DoC/search.htm Safety This instrument complies with the essential requirements of the European...

  • Page 41: Emc Information

    • 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 Operator position Normal operation mode per ISO 7779 Keysight U3020AS16 User's and Service Guide...

  • Page 42: 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 U3020AS16 User's and Service Guide...

  • Page 43: Connector Care And Cleaning Precautions

    Remove the power cord to the instrument. To clean the connectors use alcohol in a well ventilated area. Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing the instrument. Keysight U3020AS16 User's and Service Guide...
  • Page 44 U3020AS16 Safety and Regulatory Information To prevent electrical shock, disconnect the Keysight U3020AS16 from mains electrical supply before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

  • Page 45: Instrument Markings

    Forty years is the expected useful life of the product. This symbol on all primary and secondary packaging indicates compliance to China standard GB 18455-2001. South Korean Certification (KC) mark; includes the marking's identifier code which follows the format: MSIP-REM-YYY-ZZZZZZZZZZZZZZ. Keysight U3020AS16 User's and Service Guide...

  • Page 46: 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 47 Keysight U3020AS16 User's and Service Guide...
  • Page 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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