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Keysight N5241AU-944 Installation Notes

Add 4-port capability upgrade kit

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Keysight Add 4-Port Capability
Upgrade Kit
To Upgrade PNA-X N5241A, N5242A or N5249A
Option 224 to Option 423
Upgrade Kit Order Number: N5241AU- 944,
N5242AU- 944 and N5249AU- 944
Keysight Kit Number: N5242-60109
Installation Note

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Summary of Contents for Keysight N5241AU-944

  • Page 1 Keysight Add 4-Port Capability Upgrade Kit To Upgrade PNA-X N5241A, N5242A or N5249A Option 224 to Option 423 Upgrade Kit Order Number: N5241AU- 944, N5242AU- 944 and N5249AU- 944 Keysight Kit Number: N5242-60109 Installation Note...
  • Page 2: Safety Notices

    PERFORMANCE OF THIS to the public to use, modify, DOCUMENT OR ANY INFORMATION reproduce, release, perform, CONTAINED HEREIN. SHOULD display, or disclose commercial KEYSIGHT AND THE USER HAVE A computer software or SEPARATE WRITTEN AGREEMENT commercial computer software WITH WARRANTY TERMS...
  • Page 3 Description of the Upgrade Description of the Upgrade In June 2013, the N5241A/AS and N5242A/AS analyzers underwent significant hardware changes. Some components that have 2.4 mm connectors (bias tees, couplers, and some semi-rigid cables) were replaced with components that have 3.5 mm connectors. If your analyzer’s serial number prefix is MY/SG/US5310 and below: Your analyzer was originally shipped with 2.4 mm components.
  • Page 4: Contacting Keysight

    If You Have Problems With the Upgrade Kit Contents Keysight stands behind the quality of the upgrade kit contents. If you have problems with any item in the kit, refer to www.keysight.com and the Contact Keysight link.
  • Page 5: Getting Prepared

    The enclosed Option Entitlement Certificate is a receipt, verifying that you have purchased a licensed option for the PNA of your choice. You must now use a Keysight Web page to request a license key for the instrument that will receive the option.
  • Page 6 The instrument information is available on the network analyzer – on the analyzer’s Help menu, click About Network Analyzer. If you provide an email address, Keysight will promptly email your license key. Otherwise, you will your receive your license key via postal mail.
  • Page 7: Tools Required For The Installation

    Torque these connections to 21 in-lb. About Installing the Upgrade Products affected......................N5241A, N5242A and N5249A Option 224 Installation to be performed............. byKeysight service center or personnel qualified by Keysight Estimated installation time.................................5 hours Estimated adjustment time..............................0.5 hours Estimated full instrument calibration time..........................4.5 hours...
  • Page 8 Items Included in the Upgrade Kit Check the contents of your kit against the following list. If any part is missing or damaged, contact Keysight Technologies. Refer to “Getting Assistance from Keysight” on page Table 1 Contents of Upgrade Kit N5242-60109...
  • Page 9 Items Included in the Upgrade Kit Table 1 Contents of Upgrade Kit N5242-60109 Description Part Number Desig. Machine screw, M3.0 x 14, pan head (to attach 2 bias tees to brackets) 0515-2994 Front frame, 1-piece, machined, 4-port N5247-20141 Lower front panel overlay, 4-port (all instruments without Option 029) N5222-80006 Keypad overlay N5242-80005...
  • Page 10 Items Included in the Upgrade Kit Table 1 Contents of Upgrade Kit N5242-60109 Description Part Number Desig. A24 mixer brick (R4) to A20 IF multiplexer (P414) N5242-60019 A24 mixer brick (R3) to A20 IF multiplexer (P413) N5242-60020 A24 mixer brick (C) to A20 IF multiplexer (P601) N5242-60023 A20 IF multiplexer (P203) to A12 SPAM (J2) N5242-60013...
  • Page 11 Items Included in the Upgrade Kit Table 1 Contents of Upgrade Kit N5242-60109 Description Part Number Desig. A PNA Option 224 with Option 029 being upgraded to Option 423 with Option 029 will require the items previously listed and the following items also. Lower front panel overlay, 4-port (all instruments with Option 029) N5242-80012 W140...
  • Page 12: Overview Of The Installation Procedure

    Installation Procedure for the Upgrade Installation Procedure for the Upgrade The network analyzer must be in proper working condition prior to installing this option. Any necessary repairs must be made before proceeding with this installation. This installation requires the removal of the analyzer’s protective outer covers. The analyzer must be powered down and disconnected from the mains supply before performing this procedure.
  • Page 13 If the model number, serial number, or option number do not match those on your license key, you will not be able to install the option. If this is the case, contact Keysight for assistance before beginning the installation of this upgrade. Refer to “Contacting Keysight”...
  • Page 14 Installation Procedure for the Upgrade Step 5.Remove the A19 Test Set Motherboard For instructions, click the Chapter 7 bookmark “Removing and Replacing the A19 Test Set Motherboard” in the PDF Service Guide Step 6.Remove the A20 IF Multiplexer Board For instructions, click the Chapter 7 bookmark “Removing and Replacing the A20 IF Multiplexer Board”...
  • Page 15 Installation Procedure for the Upgrade 4. Remove the following gray flexible cables: — W64 (N5242-60025) A23 mixer brick (R1) to A20 IF multiplexer (P601) — W65 (N5242-60026) A23 mixer brick (R2) to A20 IF multiplexer (P801) 5. Leave the remaining gray flexible cables, the wire harnesses, and the ribbon cables connected where possible.
  • Page 16 Installation Procedure for the Upgrade 4. If the PNA does not include Option 029, follow all eleven instructions shown in Figure 2. If the PNA does include Option 029, omit instruction 2 and the unnumbered instruction to install a splitter - it is already installed. Graphics in this document such as Figure 2 use very brief text to instruct...
  • Page 17 Installation Procedure for the Upgrade Step 10.Assemble the A26 and A27 Test Port Bridges Follow the two instructions shown in Figure Figure 3 A26 and A27 Test Port Bridge Assembly Installation Note N5242-90017...
  • Page 18 Installation Procedure for the Upgrade Step 11.Install the Mixer Bricks Assembly and Test Port Bridge Assemblies Follow the two instructions shown in Figure Figure 4 A23, A24 Mixer Bricks Installation and A26, A27 Test Port Bridges Installation Installation Note N5242-90017...
  • Page 19 Installation Procedure for the Upgrade Step 12.Assemble the A35, A36 Source Attenuators and the A43, A44 Receiver Attenuators Follow the five instructions shown in Figure Figure 5 A35, A36 Source Attenuators Assembly and A43, A44 Receiver Attenuators Assembly Installation Note N5242-90017...
  • Page 20 Installation Procedure for the Upgrade Step 13.Install the Bias Tees and the Attenuator Assemblies Installing these bias tees backwards will cause damage to the analyzer source modules. If your analyzer’s serial number prefix is MY/SG/US5321 and above: Follow the two instructions shown in Figure 7.
  • Page 21 Installation Procedure for the Upgrade Figure 6 Step Attenuators and Bias Tees Assembly Installation Note N5242-90017...
  • Page 22 Installation Procedure for the Upgrade Figure 7 Bias Tees and Attenuators Installation Keysight Technologies Installation Note N5242-90017...
  • Page 23 Installation Procedure for the Upgrade Step 14.Assemble the Port 4 Source Bypass Switch Assembly Follow the two instructions shown in Figure Figure 8 Port 4 Source Bypass Switch Assembly Installation Note N5242-90017...
  • Page 24 Installation Procedure for the Upgrade Step 15.Install the Port 4 Source Bypass Switch Assembly Follow the instruction shown in Figure Figure 9 Port 4 Source Bypass Switch Installation Installation Note N5242-90017...
  • Page 25 Installation Procedure for the Upgrade Step 16.Assemble the A29 - A32 Test Port Coupler Assemblies 1. Remove the A29 test port 1 coupler and A32 test port 2 coupler from the PNA. For instructions, click the Chapter 7 bookmark, “Removing and Replacing the A29 - A32 Test Port Couplers” in the PDF Service Guide 2.
  • Page 26 Installation Procedure for the Upgrade Step 17.Install the LED Boards and Test Port Coupler Assemblies to the Test Set Front Plate 1. Remove two screws from each LED board and remove the boards from the 2-port test set front plate of the PNA. 2.
  • Page 27 Installation Procedure for the Upgrade Step 18.Install the Bulkhead Connectors in the Test Set Front Plate Refer to Figure 12 for this procedure. New parts are listed in Table 1 on page 1. If your analyzer’s serial number is MY/SG/US5321 and above: Locate the bulkhead connectors you removed earlier from the 2-port test set front plate of the PNA.
  • Page 28 Installation Procedure for the Upgrade Step 19.Install the Coupler Plate Assembly to the Deck Follow the four instructions shown in Figure Figure 13 Coupler Plate Assembly Installation Installation Note N5242-90017...
  • Page 29 Installation Procedure for the Upgrade Step 20. Install the Bulkhead Connectors and Jumper on the Rear Panel 1. Remove hole plugs from the following rear panel connector openings: — PORT 4—SW TSET IN (J3) — PORT 4—SW SRC OUT (J4) New parts are listed in Table 1 on page 7 for this step of the procedure.
  • Page 30 Installation Procedure for the Upgrade Step 21.Install the Test Set Cables Follow instructions carefully when making cable connections, especially wire harness connections. Incorrect connections can destroy components, resulting in additional customer costs. Be careful not to damage the center pins of the semirigid cables. Some flexing of the cables may be necessary but do not over-bend them.
  • Page 31 Installation Procedure for the Upgrade — W85 (N5222-20035) Port 2 CPLR THRU to A41 port 2 bias tee — W128 (reuse) (N5242-20134 or N5242-20303) A53 port 2 bypass switch to front-panel Port 2 SOURCE OUT — W127 (reuse) (N5242-20116 or N5242-20292) A37 port 2 source attenuator to A53 port 2 bypass switch —...
  • Page 32 Installation Procedure for the Upgrade — W35 (reuse) (N5242-20043 or N5222-20033) A33 reference mixer switch to front-panel REF 1 SOURCE OUT * Torque 3x Reference Mixer Switch board screws 0515-0372 to 9 in-lbs. — W126 (reuse) (N5242-20066 or N5242-20272) A28 port 2 bridge to A37 port 2 source attenuator —...
  • Page 33 Installation Procedure for the Upgrade — W42 (N5222-20009) A21 HMA26.5 to A22 splitter * Leave the W42 loose for now. — W44 (N5222-20008) A22 splitter to A24 mixer brick * Leave the W44 loose for now. * Tighten 2x screws on A22 splitter @ 9 in-lbs. * Tighten cable nuts on W42, W43, and W44 @10 in-lbs.
  • Page 34 Installation Procedure for the Upgrade Semi-rigid Cables Required for Upgrading to an Option 423 PNA Without Option 029 Install the following semirigid cables in the order listed if upgrading to a PNA Option 423 without Option 029. To see images showing the location of these cables, click the Chapter 6 bookmark “Bottom RF Cables, 4-Port, Option 423 without Option 029”...
  • Page 35 Installation Procedure for the Upgrade — W36 (reuse) (N5242-20042 or N5222-20032) Front-panel REF 1 RCVR R1 IN to A33 reference mixer switch — W35 (reuse) (N5242-20043 or N5222-20033) A33 reference mixer switch to front-panel REF 1 SOURCE OUT * Torque 3x Reference Mixer Switch board screws 0515-0372 to 9 in-lbs. —...
  • Page 36 Installation Procedure for the Upgrade — W40 (reuse) (N5242-20049 or N222-20039) Front-panel REF 2 RCVR R2 IN to A23 mixer brick (R2) — W43 (N5222-20007) A22 splitter to A23 mixer brick * Leave the W43 loose for now. — W44 (N5222-20008) A22 splitter to A24 mixer brick * Leave the W44 loose for now.
  • Page 37 Installation Procedure for the Upgrade Step 22.Reinstall the A20 IF Multiplexer Board For instructions, click the Chapter 7 bookmark “Removing and Replacing the A20 IF Multiplexer Board” in the PDF Service Guide Step 23.Reinstall the A19 Test Set Motherboard Follow instructions carefully when making cable connections, especially wire harness connections.
  • Page 38 Installation Procedure for the Upgrade 3. In the section “Removing the Power Switch Board and Power Button Keypad”, perform only steps 1 and 2. 4. Remove the braided gasket from the backside edges of the 2-port front frame and install it in the 4-port front frame (N5247-20141).
  • Page 39 Installation Procedure for the Upgrade Step 28. Position the Cables and Wires to Prevent Pinching On the top side of the PNA, carefully position the grey flex cables so they can’t be pinched between the covers and the rails. On the bottom side of the PNA, carefully fold or push down the ribbon cables and wires so they can’t be pinched between the hardware and the outer cover.
  • Page 40 3. In the Select Desired Option list, click P04 - 4-Ports. 4. Using the keyboard, enter the license key in the box provided. The license key is printed on the license message you received from Keysight. Enter this key exactly as it is printed on the message.
  • Page 41 Perform the Operator’s Check to test the basic functionality of the analyzer. For instructions, click the Chapter 3 bookmark “Tests and Adjustments” in the PDF Service Guide If you experience difficulty with the basic functioning of the analyzer, contact Keysight. Refer to “Contacting Keysight” on page Calibration Although the analyzer functions, its performance relative to its specifications has not been verified.
  • Page 42 This information is subject to change without notice. © Keysight Technologies 2009-2020 Edition 1, July 2020 N5242-90017 www.keysight.com...

This manual is also suitable for:

N5242au-944N5249au-944N5242-60109