Keysight E8401A User And Service Manual
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Keysight E8401A User And Service Manual

Keysight E8401A User And Service Manual

C-size vxi mainframes
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75000 Series C
User and Service Manual
Keysight E8401A and E8403A
C-Size VXI Mainframes

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  • Page 1 75000 Series C User and Service Manual Keysight E8401A and E8403A C-Size VXI Mainframes...

  • Page 3: Declaration Of Conformity

    Warranty © Keysight Technologies, Inc. 1997-2019 No part of this manual may be repro- To contact Keysight for sales and techni- THE MATERIAL CONTAINED IN THIS duced in any form or by any means cal support, refer to the support links on DOCUMENT IS PROVIDED “AS IS,”...

  • Page 4: Safety Information

    In Case of Damage Cleaning Instruments that appear damaged or Clean the outside of the Keysight mod- defective should be made inoperative ule/chassis with a soft, lint-free, and secured against unintended oper- slightly dampened cloth. Do not use ation until they can be repaired by detergent or chemical solvents.
  • Page 5 Safety Symbols A CAUTION denotes a hazard. It calls attention to an operating pro- cedure or practice, that, if not cor- rectly performed or adhered to could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated condi- tions are fully understood and met.

  • Page 7: Table Of Contents

    Chapter Overview..........21 Rack Mounting the Keysight E840xA Mainframe ..... . . 21 Parts List .
  • Page 8 Keysight E840xA Air Filter Kit ........

  • Page 9: Getting Started

    Keysight E8401A, E8403A C-Size Mainframes User and Service Guide Getting Started This chapter contains general information on the operating features of the Keysight E8401A and E8403A C-Size VXI mainframes. The following table lists the differences between these two mainframes: Power Supply Basic °...

  • Page 10: Preparing Your Vxi System For Use

    -- optional air filter kit is available for harsh environments. Preparing Your VXI System for Use The Keysight E840xA mainframes are shipped from the factory ready to use. This section describes important mainframe installation procedures. AC Power Requirements The Keysight E840xA mainframes can be operated at line voltages of 90 VAC to 264 VAC, and line frequencies of 47 Hz to 66 Hz.

  • Page 11: Connecting The Mainframe To A Permanent Earth Ground

    2 Attach the other end of the wire to a permanent earth ground using toothed washers or a toothed lug. Figure1-1. Connecting an Keysight E840xA Mainframe to a Permanent Earth Ground (Keysight E8403 shown, Keysight E8401 is similar) For protection from electrical shock when operating at frequencies greater than 66 Hz, connect the chassis ground terminal to permanent earth ground.

  • Page 12: Installing Vxi Instruments

    Installing VXI Instruments Installing VXI Instruments The Keysight E840xA mainframes have 13 slots labeled 0 through 12. Any VXI instrument can be installed in any slot; however, slot 0 is reserved for devices capable of providing the system’s slot 0 functionality. This functionality includes: –...

  • Page 13: Installing C-Size Instruments

    Figure 1--2. Installing C-Size Instruments in the Keysight E840xA Mainframe All instruments within the VXI mainframe are grounded through the mainframe chassis. During installation, tighten the instrument's retaining screws to secure the instrument to the mainframe and to make the ground connection.

  • Page 14: Installing A- And B-Size Instruments

    Installing A- and B-Size Instruments Figure 3 shows the installation of A- and B-size instruments. – Keysight E1403B A/B-size Module Carrier extends the P1 connector on the VXIbus backplane and mounts the (A/B-size) modules flush with C-size modules. This carrier is recommended for Keysight B-size, slave-only devices which have the P1 connector.

  • Page 15: Front Panel Features

    (low), this line resets the VXI system; all VXI instruments are rest to their power-on state.  Refer to “Diagnostic Connector” on page 16. Diagnostic Connector Figure 1-4. Keysight E8401A and E8403A Basic Monitoring Front Panel Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 16: Diagnostic Connector

    Input for +5V STDBY (1A maximum for pins 8 and 21 combined). Chassis ground. ACFAIL * TTL low-true output asserted by the mainframe power monitor at power down or whenever a loss of power is detected. Chassis ground. Reserved. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 17 Diagnostic Connector, make certain that you do not violate the VXI backplane electrical specifications (i.e. keep the cable as short as possible, buffer the signal line, etc.). Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 18: Using The Remote Power-On Pins

    18 turns the mainframe off. 0 Figure 1-2. Remote Standby Switch Wiring Pin 18 is ground in the Keysight E8401 and E8403 mainframes. Therefore, you only need to ground pin 5 to turn the mainframe Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 19: Disabling The On/Stdby Switch

    2 Remove the rear panel. Refer to “Removing the Rear Panel from the Mainframe” on page 47 for instructions. 3 Remove the mainframe cover by removing the 10 (five on each side) m3x6 flat head torx screws. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 20: Mainframe Options And Accessories

    Support Rail for Standard Rack Mount Adapter or Flush Rack Mount Kit Keysight E3664A Support Rail for VXIplug&play (VPP-8) Compatible Rack Mount Kit Keysight E3663A Rack Slide Kit for Standard Adapter Kit or VXIplug&play (VPP-8) Compatible Keysight Rack Mount Kit 1494-0411 Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 21: Rack Mounting And Option Installation

    Rack Slide Kit Keysight p/n 1494-0411 * This adapter kit can also be used with the Keysight E3665A rail kit. When rack mounting the mainframe, you must order an adapter option and the rail or rack slide kit supported by the adapter.

  • Page 22: Parts List

    Adapter-to-Mainframe Screws - m5x8 pan head 0515-0979 Adapter Dress Screws 0570-1577 Channel Nuts (for adapter dress screws) 0590-0804 Keysight E840xA Flush Mount Adapter Option 924 (kit p/n E8400-80924) Rack Mount Adapter (left) E8400-61205 Rack Mount Adapter (right) E8400-61206 Adapter-to-Mainframe Screws - m5x8 pan head...

  • Page 23: Rack Mounting The Keysight E840Xa Using Support Rails

    This section contains instructions for mounting the Keysight E840xA mainframe in an EIA cabinet using the Keysight E3664A support rail kit. The E3664A kit can be used with any of the rack mount adapter options; however, the E3664A is only compatible with Keysight cabinets.

  • Page 24: Procedure

    Rack Mounting the Keysight E840xA Mainframe Procedure 1 Attach the handles to the adapters using the m5x10 flat head screws (Figure 2-1). Handles are included only with the Keysight E840xA Standard adapters (Option 923). m5x10 Flat Head Screws Figure 2-1 Attaching Handles to the Adapters (Option 923 - kit p/n E8400-80923) 2 Using the rack mount adapters as templates, position the adapters on the rack’s vertical rails where the mainframe is to be mounted.
  • Page 25 Figure 2-2 Positioning the Mainframe in the Rack 4 Attach the support rails to the rack’s inside vertical rails. The support rails must be positioned behind the bottom channel nuts installed in Step 3 (Figure Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 26 2-3). Use four channel nuts and the four 0.5x10-32 support rail-to-rack pan head screws to secure the rail. Position Rail Behind Bottom Channel 0.5x10.32 Pan Head screws Figure 2-3 Attaching the Support Rails to the Rack Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 27 Pan Head Screws Standard Adapter Option 923 VXI Plug & Play Compliant Adapter Option 925 Flush Mount Adapter Option 924 Figure 2-4 Attaching the Rack Mount Adapter to the Mainframe Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 28 Secure the mainframe to the rack using the adapter dress screws. To prevent injury during rack mounting, the mainframe should be empty and two people should lift the mainframe into the rack. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 29: Rack Mounting The Keysight E840Xa Using Rack Slide Rails

    (Option 924). Procedure 1 Attach the handles to the standard adapters using the m5x10 flat head screws (Figure 2-5). Handles are included only with the Keysight E840xA Standard adapters (Option 923). m5x10 Flat Head Screws...
  • Page 30 3 Slide channel nuts over the rack center holes to be used by the rack mount adapters. EIA Rack Unit Center Holes Rack Unit Center Hole EIA Rack Unit Center Holes Rack Mount Adapters Figure 2-6 Positioning the Mainframe in the Rack Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 31 Right Vertical Rail (Front) Channel Nuts On Center Holes Channel Nuts For Rack Slides Four Holes Channel Nuts On Center Holes Figure 2-7 Positioning the Rack Slides (using Option 923 - standard adapters) Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 32 VXI Plug&Play Compliant Adapters Rack Front Rack Rear (Left Rack Slide Shown) m5x12 Pan Head Screws (Standard Adapter Kit) m5x12 flat head screws (Standard Adapter Kit) Figure 2-9 Installing the Rack Slide Stationary Sections Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 33 Adapter (Option 923) head Screws Chassis Sections m5x8 Flat VXI Plug&Play Compliant Rack head Screws Mount Adapter (Option 925) Figure 2-10Attaching the Rack Mount Adapters and Chassis Sections to the Mainframe Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 34: Installing The Cable Tray

    Installing the Cable Tray The Keysight E840xA Cable Tray (Option 914) allows you to route VXI instrument cables and wires under the mainframe. The cable tray can be used when the mainframe is on a bench top or when mounted in a standard EIA cabinet. The tray is compatible with the support rail (Keysight E3664A) and rack slide (Keysight p/n 1494-0411) kits.

  • Page 35: Procedure

    3 If the mainframe will be placed on a bench top, attach the mainframe feet to the cable tray. If the mainframe is to be rack mounted, you can save rack space by leaving the feet off. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 36 The side holes are 34.9 mm center-to-center, with the bottom hole 25.4 mm above the tray’s inside surface. All holes are 12.7 mm from the edge and have a diameter of 3.175 mm. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 37: Installing The Tinted Acrylic Door (Option 915)

    Rack Mounting and Option Installation Installing the Tinted Acrylic Door (Option 915) This procedure describes how to install the Tinted Acrylic Door on the Keysight E840xA mainframe. The door requires the Standard Adapter Kit (p/n E8400-80923), and is compatible with either the support rail kit (Keysight E3664A) or the rack slide kit (p/n 1494-0411).

  • Page 38: Procedure

    3 Attach the hinge pins to the right rack mount adapter using four m5x10 flat head screws (Figure 2-12). Attach the rubber door stops and door latch to the left adapter using four m3x8 pan head screws as also shown in Figure 2-12. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 39 6 Adjust the latch keeper so that the door latches as it makes contact with the rubber door stops. Once installed and adjusted, the door can be removed when necessary by lifting the door off the hinge pins. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 40: Installing The Intermodule Chassis Shields

    Installing the Intermodule Chassis Shields This procedure describes how to install kit p/n E8400-80919 - Intermodule Chassis Shields in the Keysight E840xA mainframe. The chassis shield is Keysight’s implementation of VXI revision 1.4, specification B.7.3.4 that allows grounded shielding between mainframe slots. The shield is used to isolate VXI modules that generate electromagnetic interference (EMI) at excessive levels, or to protect VXI measurement modules from noise sources.
  • Page 41 Rack Mounting and Option Installation grounding spring socket VXI module guide chassis shield guide use a small screw driver to secure spring under socket tab Figure 2-13Installing the Grounding Springs and Chassis Shield Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 42: Installing The Backplane Connector Shields

    Installing the Backplane Connector Shields This procedure describes how to install backplane connector shields (kit p/n E8400-80918 in the Keysight E840xA mainframe. The shields are Keysight’s implementation of VXI revision 1.4, specification B.7.2.3 which ensures compliance with RFI levels specified in standards EN55011 and CISPR11.

  • Page 43: Procedure

    3 Tighten the screws by turning them clockwise. The screws are thread-forming and will go in slowly when you install them the first time. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 44: Keysight E840Xa Air Filter Kit

    Keysight E840xA Air Filter Kit Keysight E840xA Air Filter Kit An optional air filter kit can be purchased for the Keysight E840xA mainframe. Figure 15 shows how to install the kit. 1 Remove the four screws from the rear panel as shown in Figure 15.

  • Page 45: Servicing Your Mainframe

    No Power Line Fuse There are NO replaceable power line fuses on the Keysight E8401A and E8403A VXI Mainframes. If the mainframe power supply fails to operate, the power supply should be replaced. Exchange assemblies are available; refer to Table 3-2.

  • Page 46: Isolating Problems

    This section contains instructions for replacing the basic monitor, power supply, power supply fan, and impeller.These assemblies are available from Keysight under the part numbers shown in Table 3-2. Contact the Keysight TMO Business Center at 1-800-829-4444 to obtain replacement assemblies.

  • Page 47: Removing The Rear Panel From The Mainframe

    3 To replace the panel, insert the three tabs into the slots at the top of the mainframe. Rotate the panel down until it is flush against the mainframe. Replace all 14 screws. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 48 Servicing Your Mainframe Replacing Assemblies Figure 3-1 Removing / Replacing the Mainframe Rear Panel (Keysight E8403 shown, Keysight E8401 is similar) Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 49: Removing The Mainframe Cover

    3 Remove the mainframe cover by removing the ten m3x6 flat head torx screws (five on each side of the mainframe). Refer to Figure 3-2. Remove 5 screws from each side. Figure 3-2 Removing the Mainframe Cover Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 50: Replacing The Basic Monitor Board

    7 Replace the mainframe cover. Make certain that all 10 m3x6 flathead torx screws are secured. 8 Replace the rear panel. Make certain that all 14 screws are secured. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 51: Replacing The Keysight E8401A Power Supply

    4 Install the exchange power supply. Keep the replacement power supply to the far right in the mainframe. Make sure the supply is firmly inserted into the backplane connectors. 5 Replace the rear panel. Make certain that all 14 screws are secured. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 52: Replacing The Keysight E8403A Power Supply

    4 Install the exchange power supply. Keep the replacement power supply to the far right in the mainframe. Make sure the supply is firmly inserted into the backplane connectors. 5 Replace the rear panel. Make certain that all 14 screws are secured. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 53: Replacing The Impeller

    5 Lift the impeller assembly off the screw locators and gently pull the impeller assembly out from the mainframe (Figure 3-6). Remove two screws Figure 3-6 Removing / Installing the Impeller Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...
  • Page 54 7 Reconnect the impeller wires to the adapter board. Tighten the impeller screws into the screw locators. 8 Replace the rear panel. Make certain that all 14 screws are secured. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 55: Replacement Power Cords

    Servicing Your Mainframe Replacement Power Cords Table 3-3 lists the power cords rated for use with the Keysight E840xA mainframes. If it becomes necessary to replace the power cord, obtain the appropriate cord listed in the table or use a cord with the same voltage and current ratings.
  • Page 56 Servicing Your Mainframe Replacement Power Cords Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 57: A Keysight E8401A, E8403A Product Specifications

    VXIbus Spec, Rev 1.4 Mechanical Specifications Module Size: Thirteen (13) C-Size slots. The mainframe also accepts A- or B-size modules using the Keysight E1403 or E1407 Adapters. Mainframe Dimensions: Height: 352 mm (13.9 inches) (8 EIA rack units) Width: 424.5 mm (16.7 inches) Depth: 631 mm (24.9 inches)

  • Page 58: Output Power Specifications

    IMP = Rated mainframe peak DC output current as defined by the VXIbus Specification. c IMD = Rated mainframe peak-to-peak dynamic current as defined in the VXIbus Specification by a current vs. frequency curve. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 59: Output Voltage Specifications

    Output Power in Watts = Sum of Voltage times Current for the VXI output voltages. Expression is valid for full output load and 90VAC. Efficiency increases slightly with higher input voltage. Efficiency decreases slightly with lower output load. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 60: Mains Power Installation Category Ii

    VXI backplane. Current: 1A Max Voltage Range: 5.25V Max, 4.875V Min Connector: Pins 8 and 21 of the Diagnostic Connector. Chassis Ground Connection:M4 x 0.7 threaded nut insert on rear panel. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 61: Cooling Specifications

    – Fans on Full Speed. Minimum airflow is approximately 50% with fans on Variable Speed. – Air Filter Kit not installed. Airflow is reduced approximately 10% with clean air filters installed. – Measurements taken at 1,500m altitude. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 62: Cooling Mode (High Or Variable)

    Low Speed up to approximately 30C ambient. High Speed above approximately 40C ambient. At no load: Low Speed up to approximately 40C ambient. High Speed above approximately 50C ambient. Assuming default limits: At full load: Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 63: Acoustical Noise Specifications

    – Monitor – Supply Temp: Glows green when power supply temperature is below a set limit. Otherwise flashes amber. – Monitor (Status) – Fans: Glows green when module and power supply fans are operating within set limits. Otherwise flashes amber. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 64: Diagnostic Connector

    Up to 95% RH from 0C to +40C. Up to 65% RH from +40C to +55C. Storage Humidity Range: Up to 95% RH from 0C to +55C. Up to 65% RH from +55C to +75. Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 65: Safety Specifications

    Conforms to ENV50141, IEC 1000-4-6, Conducted Immunity Conforms to EN61000-4-11, IEC 1000-4-11 Voltage Dips & Interruptions Radiated Emissions Conforms to EN55011, CISPR11, Group 1 Class A Radiated Field Immunity Conforms to EN50082-1, IEC 1000-4-3, Radiated Field Immunity Keysight E8401A, E8403A C-Size Mainframes User and Service Guide...

  • Page 66: Power Supply Protection

    This may be useful, for example, with custom modules that do not meet the VXI near-field radiation spec. The Keysight chassis shields are easy to install and are grounded in all four corners (patent applied).
  • Page 68 This information is subject to change without notice. © Keysight Technologies, 1997-2019 Printed in Malaysia Edition 3, October 2019 *E8401-90001* E8401-90001 www.keysight.com...

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E8403a

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