Keysight N5224AU-217, N5225AU-217, N5225-60103 Installation Note

Keysight Add Source and Receiver Attenuators Upgrade Kit

To Upgrade PNA N5224A or N5225A Option 201 to
Option 217

Upgrade Kit Order Numbers: N5224AU-217 or
N5225AU-217

Keysight Kit Number: N5225-60103

Installation Note

WARRANTY STATEMENT

THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD
TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION
WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED
HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY
TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL.

DFARS/Restricted Rights Notice

If software is for use in the performance of a U.S. Government prime contract or subcontract, Software is
delivered and licensed as “Commercial computer software” as defined in DFAR 252.227-7014 (June 1995), or
as a “commercial item” as defined in FAR 2.101(a) or as “Restricted computer software” as defined in FAR

52.227-19 (June 1987) or any equivalent agency regulation or contract clause. Use, duplication or disclosure of
Software is subject to Keysight Technologies’ standard commercial license terms, and non-DOD Departments
and Agencies of the U.S. Government will receive no greater than Restricted Rights as defined in FAR 52.227­19(c)(1-2) (June 1987). U.S. Government users will receive no greater than Limited Rights as defined in FAR

52.227-14 (June 1987) or DFAR 252.227-7015 (b)(2) (November 1995), as applicable in any technical data.

Safety Notes

The following safety notes are used throughout this document. Familiarize yourself with each of these notes
and its meaning before performing any of the procedures in this document.

WARNING Warning denotes a hazard. It calls attention to a procedure which, if not correctly performed

or adhered to, could result in injury or loss of life. Do not proceed beyond a warning note
until the indicated conditions are fully understood and met.

CAUTION Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or

adhered to, could result in damage to or destruction of the instrument. Do not proceed beyond
a caution note until the indicated conditions are fully understood and met.

2 Installation Note N5225-90103

Description of the Upgrade

This upgrade adds the following items to your N5224A Option 201 or N5225A Option 201 network analyzer:

• a 60-dB source attenuator in each source port channel

• a 35-dB receiver attenuator in each receiver channel

• front panel overlay replacement

•new cables

After installation of this upgrade, your analyzer will be an N5224A Option 217 or N5225A Option 217.

Getting Assistance from Keysight

By internet, phone, or fax, get assistance with all your test and measurement needs.

Contacting Keysight

Assistance with test and measurements needs and information on finding a local Keysight office are available
on the Web at:

http://www.keysight.com/find/assist

If you do not have access to the Internet, please contact your Keysight field engineer.

NOTE In any correspondence or telephone conversation, refer to the Keysight product by its model

number and full serial number. With this information, the Keysight representative can
determine whether your product is still within its warranty period.

Installation Note N5225-90103 3

Getting Prepared

CAUTION The PNA contains extremely sensitive components that can be ruined if mishandled. Follow

instructions carefully when making cable connections, especially wire harness connections.

The person performing the work accepts responsibility for the full cost of the repair or
replacement of damaged components.

To successfully install this upgrade kit, you will need the following:

• A license key - refer to “License Key Redemption” below.

• A PDF copy or a paper copy of the PNA Service Guide - refer to “Downloading the Online PNA Service

Guide” below.

• An ESD-safe work area - refer to “Protecting Your Workspace from Electrostatic Discharge” below.

• Correct tools - refer to “Tools Required for the Installation” on page 6.

• Enough time - refer to “About Installing the Upgrade” on page 6.

• Test equipment for the post-upgrade adjustments and full instrument calibration. To view the equipment

list, click the Chapter 3 bookmark “Tests and Adjustments” in the PDF Service Guide

License Key Redemption

1

.

NOTE 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.

To enable the option product, you must request a license key from: http://www.keysight.com/find/

softwarelicense. To complete the request, you will need to gather the following information:

• From the certificate

❏ Order number

❏ Certificate number

• From your instrument

❏ Model number

❏ Serial number

❏ Host ID

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.

1. See “Downloading the Online PNA Service Guide” on page 5.

4 Installation Note N5225-90103

Downloading the Online PNA Service Guide

To view the online Service Guide for your PNA model number, use the following steps:

1. Go to www.keysight.com.

2. In the Search box, enter the model number of the analyzer (Ex: N5242A) and click Search.

3. Click Technical Support > Manuals.

4. Click Service Manual.

5. Click the service guide title to download the PDF file.

6. When the PDF of the Service Guide is displayed, scroll through the Contents section bookmarks to locate
the information needed.

Protecting Your Workspace from Electrostatic Discharge

For information, click on the Chapter 1 bookmark, “Electrostatic Discharge Protection” in the PDF Service

1

.

Guide

ESD Equipment Required for the Installation

Description Keysight Part Number

ESD grounding wrist strap 9300-1367

5-ft grounding cord for wrist strap 9300-0980

2 x 4 ft conductive table mat and 15-ft grounding wire 9300-0797

ESD heel strap (for use with conductive floors) 9300-1308

1. See “Downloading the Online PNA Service Guide” on page 5.

Installation Note N5225-90103 5

Tools Required for the Installation

Description Qty Part Number

T-10 TORX driver - set to 9 in-lbs (1.02 N.m) 1 N/A

T-20 TORX driver - set to 21 in-lbs (2.38 N.m) 1 N/A

5/16-in (8 mm) nutsetter or open end torque wrench - set to 10 in-lbs (1.13 N.m) 1 N/A

CAUTION Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections.

About Installing the Upgrade

Products affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N5224A and N5225A Option 201

Installation to be performed by . . . . . . . . . . . . . . . . . . . . . . Keysight service center or personnel qualified by

Keysight

Estimated installation time . . . . . . . . . . . . . . . . . . . . . . . . . 2 hours

Estimated adjustment time . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 hour

Estimated full instrument calibration time . . . . . . . . . . . . . 4.5 hours

6 Installation Note N5225-90103

Items Included in the Upgrade Kit

1

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 3.

Table 1 Contents of Upgrade Kit N5225-60103

Ref

Desig.

-- Installation note (this document) 1 N5225-90103

A38,
A41

A46,
A49

W12 A29 port 1 receiver coupler to W11 1 N5245-20050

W18 A32 port 2 receiver coupler to W17 1 N5245-20049

W21 A29 port 1 receiver coupler to A37 reference mixer switch 1 N5245-20118

0–60 dB source step attenuator 2 33325-60016

0-35 dB receiver step attenuator 2 33325-60017

-- Attenuator bracket

-- Attenuator bracket

-- Cable clamp 8 1400-1334

-- Cable tie 5 1400-0249

-- Front panel overlay 1 N5225-80002

Machine screw, M3 x 8, pan head (to attach brackets to attenuators; to attach

-­receiver attenuators to deck)

-- Machine screw, M3 x 6, pan head (to attach source attenuators to deck) 4 0515-0430

(For source attenuators.) 2 N5245-00015

(For receiver attenuators.) 2 N5225-00001

Description Qty Part Number

17 0515-0372

W33 RF cable, A32 port 2 receiver coupler to front-panel REF 2 SOURCE OUT 1 N5245-20010

W47 REF 2 RCVR R2 IN to A27 mixer brick (R2) 1 N5245-20119

W81 RF cable, A29 test port 1 receiver coupler to A38 test port 1 source attenuator 1 N5245-20029

W82 RF cable, A38 test port 1 source attenuator to front-panel Port 1 SOURCE OUT 1 N5245-20077

W93 RF cable, A32 test port 2 receiver coupler to A41 test port 2 source attenuator 1 N5245-20029

W94 RF cable, A41 test port 2 source attenuator to front-panel Port 2 SOURCE OUT 1 N5245-20031

W97 RF cable, front-panel Port 1 RCVR A IN to A46 port 1 receiver attenuator 1 N5245-20054

W98 RF cable, A46 port 1 receiver attenuator to A27 mixer brick (A) 1 N5245-20056

W103 RF cable, Port 2 RCVR B IN to A49 port 2 receiver attenuator 1 N5245-20055

W104 RF cable, A49 port 2 receiver attenuator to A27 mixer brick (B) 1 N5245-20057

-- Ribbon cable, A23 test set motherboard J205 to A46 port 1 receiver attenuator

-- Ribbon cable, A23 test set motherboard J208 to A49 port 2 receiver attenuator

1. In addition to the upgrade kit, the shipment includes an Option Entitlement Certificate. Refer to “License Key Redemption”

on page 4 for important information about this certificate.

N5245-60026

2

Was 8121-0982

Installation Note N5225-90103 7

Table 1 Contents of Upgrade Kit N5225-60103

Ref

Desig.

-- Ribbon cable, A23 test set motherboard J549 to A38 test port 1 source attenuator

-- Ribbon cable, A23 test set motherboard J546 to A41 test port 2 source attenuator

NOTE Extra quantities of items such as protective plastic caps, screws, cable ties, and cable clamps

Description Qty Part Number

2 N5245-60006

may be included in this upgrade kit. It is normal for some of these items to remain unused after
the upgrade is completed.

8 Installation Note N5225-90103

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.

WARNING 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.

Overview of the Installation Procedure

Step 1. Obtain a Keyword and Verify the Information.

Step 2. Remove the Outer Cover.

Step 3. Remove Some Bottom-Side (Test Set) Cables.

Step 4. Assemble the A46 and A49 Receiver Attenuator Assemblies.

Step 5. Install the A46 and A49 Receiver Attenuator Assemblies.

Step 6. Assemble the A38 and A41 Source Attenuator Assemblies.

Step 7. Install the A38 and A41 Source Attenuator Assemblies.

Step 8. Install Some Bottom-Side (Test Set) Cables.

Step 9. Remove the Old Lower Front Panel Overlay.

Step 10. Reinstall Front Panel Assembly.

Step 11. Install the New Lower Front Panel Overlay.

Step 12. Reinstall Front Panel Jumpers.

Step 13. Position the Cables and Wires to Prevent Pinching.

Step 14. Reinstall the Outer Cover.

Step 15. Enable Option 217.

Step 16. Perform Post-Upgrade Adjustments and Calibration.

Step 17. Prepare the PNA for the User.

Installation Note N5225-90103 9

Step 1. Obtain a Keyword and Verify the Information

Follow the instructions on the Option Entitlement Certificate supplied to obtain a license key for installation of
this upgrade. Refer to “License Key Redemption” on page 4.

Verify that the model number, serial number, and option number information on the license key match those of
the instrument on which this upgrade will be installed.

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” on page 3.

Once the license key has been received and the information verified, you can proceed with the installation at
step 2.

Step 2. Remove the Outer Cover

For instructions, click the Chapter 7 bookmark “Removing the Covers” in the PDF Service Guide1.

1. See “Downloading the Online PNA Service Guide” on page 5.

10 Installation Note N5225-90103

Step 3. Remove Some Bottom-Side (Test Set) Cables

CAUTION 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.

1. Place the analyzer bottom-side up on a flat surface.

2. Remove the following cables. To see an image showing the location of these cables, click the Chapter 6

1

bookmark “Bottom RF Cables, Standard 2-Port Configuration, Option 201” in the PDF Service Guide

These cables may be discarded - they will not be reinstalled.

• W12 (N5245-20109) A29 port 1 receiver coupler to W11

• W18 (N5245-20111) A32 port 2 receiver coupler to W17

• W19 (N5245-20039) A29 test port 1 receiver coupler to front-panel Port 1 SOURCE OUT

• W21 (N5245-20120) A29 port 1 receiver coupler to A37 reference mixer switch

• W31 (N5245-20040) A32 test port 2 receiver coupler to front-panel Port 2 SOURCE OUT

• W35 (N5245-20121) A32 port 2 receiver coupler to front-panel REF 2 SOURCE OUT

• W37 (N5245-20041) Front-panel Port 1 RCVR A IN to A27 mixer brick (A)

• W40 (N5245-20042) Port 2 RCVR B IN to A27 mixer brick (B)

.

• W46 (N5245-20011) Front-panel REF 2 RCVR R2 IN to A27 mixer brick (R2)

These cables must be saved - they will be reinstalled.

• W41 (N5245-20006) A37 reference mixer switch to

front-panel REF 1 SOURCE OUT

• W42 (N5245-20007) REF 1 RCVR R1 IN to A37 reference mixer switch

• W36 (N5245-20155) Front panel jumpers (quantity = 6)

NOTE: Remove and save the cable guards for the front panel jumpers.

1. See “Downloading the Online PNA Service Guide” on page 5.

Installation Note N5225-90103 11

Step 4. Assemble the A46 and A49 Receiver Attenuator Assemblies

Refer to Figure 1 for this step of the procedure. New parts are listed in Table 1 on page 7. Use a T-10 TORX
driver to tighten all screws.

Figure 1 Port 1 and Port 2 Receiver Attenuator and Bracket Assembly

12 Installation Note N5225-90103

Step 5. Install the A46 and A49 Receiver Attenuator Assemblies

Refer to Figure 2 for this step of the procedure. New parts are listed in Table 1 on page 7. Use a T-10 TORX
driver to tighten all screws.

Figure 2 Port 1 and Port 2 Receiver Attenuator Assemblies Installation

Installation Note N5225-90103 13

Step 6. Assemble the A38 and A41 Source Attenuator Assemblies

Refer to Figure 3 for this step of the procedure. New parts are listed in Table 1 on page 7. Use a T-10 TORX
driver to tighten all screws.

Figure 3 Source Attenuator and Brackets Assembly

14 Installation Note N5225-90103

Step 7. Install the A38 and A41 Source Attenuator Assemblies

Refer to Figure 4 for this step of the procedure. New parts are listed in Table 1 on page 7. Use a T-10 TORX
driver to tighten all screws.

Figure 4 Source Attenuator Assemblies Installation

Installation Note N5225-90103 15

Step 8. Install Some Bottom-Side (Test Set) Cables

CAUTION Follow instructions carefully when making cable connections, especially wire harness

connections. Incorrect connections can destroy components, resulting in additional customer
costs.

Install the Semirigid Cables

To see an image showing the location of these cables, click the Chapter 6 bookmarks “Bottom RF Cables, 2-

port Configuration, Option 217” in the PDF Service Guide

Install the following new cables in the order listed.

• W103 (N5245-20055) Port 2 RCVR B IN to A49 port 2 receiver attenuator

1

. New parts are listed in Table 1 on page 7.

• W94 (N5245-20031)

A41 port 2 source attenuator to front-panel Port 2 SOURCE OUT

• W33 (N5245-20010) A32 port 2 receiver coupler to front-panel REF 2 SOURCE OUT

* As shown in Figure 5 on page 17, install four cable clamps (part number 1400-1334) to secure W33 (part
number N5245-20010).

1. See “Downloading the Online PNA Service Guide” on page 5.

16 Installation Note N5225-90103

Figure 5 Location of Cable Clamps to Secure W33

• W104 (N5245-20057) A49 port 2 receiver attenuator to A27 mixer brick (B)

• W47 (N5245-20119) REF 2 RCVR R2 IN to A27 mixer brick (R2)

• W47 (N5245-20119) REF 2 RCVR R2 IN to A27 mixer brick (R2)

• W18 (N5245-20049) A32 port 2 receiver coupler to W17

• W12 (N5245-20050) A29 port 1 receiver coupler to W11

• W82 (N5245-20077)

• W42 (reuse) (N5245-20007) REF 1 RCVR R1 IN to A37 reference mixer switch

• W41 (reuse) (N5245-20006) A37 reference mixer switch to

• W21 (N5245-20118) A29 port 1 receiver coupler to A37 reference mixer switch

Installation Note N5225-90103 17

A38 port 1 source attenuator to front-panel Port 1 SOURCE OUT

front-panel REF 1 SOURCE OUT

If the two screws that attach the reference mixer switch to the test set deck were loosened, torque these
screws now to 9 in-lbs.

* As shown in Figure 6, install a cable tie (part number 1400-0249) to secure W21 (part number N5245-

20118).

Figure 6 Location of Cable Tie to Secure W21

• W98 (N5245-20056) A46 port 1 receiver attenuator to A27 mixer brick (A)

• W81 (N5245-20029) A29 port 1 receiver coupler to A38 port 1 source attenuator

• W93 (N5245-20029)A32 port 2 receiver coupler to A41 port 2 source attenuator

Install the Ribbon Cables

To see an image showing the location of these cables, click the Chapter 6 bookmarks “Bottom Ribbon Cables

1

and Wire Harnesses, 2-port, Option 217” in the PDF Service Guide

. New parts are listed in Table 1 on page 7.

Connect step attenuator ribbon cables as follows:

• (N5245-60006) A38 port 1 source step attenuator to A23 test set motherboard J549

• (N5245-60006) A41 port 2 source step attenuator to A23 test set motherboard J546

• (N5245-60026) A46 port 1 receiver step attenuator to A23 test set motherboard J205

• (N5245-60026) A49 port 2 receiver step attenuator to A23 test set motherboard J208.

1. See “Downloading the Online PNA Service Guide” on page 5.

18 Installation Note N5225-90103

Step 9. Remove the Old Lower Front Panel Overlay

Refer to Figure 7 for this step of the procedure. Although this figure shows a 4-port PNA, the concept is the
same for a 2-port PNA. New parts are listed in Table 1 on page 7.

1. From the back side of the front panel, use a blunt object in the cutouts in the lower front dress panel to
push on the old overlay (item

2. From the front side of the front panel, pull off the overlay completely and discard it.

3. Remove any adhesive remaining on the front panel.

Figure 7 Lower Front Panel Overlay Replacement

) and separate it from the front dress panel.

①

Installation Note N5225-90103 19

Step 10. Reinstall Front Panel Assembly

For instructions on reinstalling the front panel assembly, click the Chapter 7 bookmark “Removing and

1

Replacing the Front Panel Assembly” in the PDF Service Guide

.

Step 11. Install the New Lower Front Panel Overlay

Refer to Figure 7 on page 19 for this step of the procedure. New parts are listed in Table 1 on page 7.

1. Remove the protective backing from the new front panel overlay, N5225-80002 (item

2. Starting from either side, loosely place the overlay in the recess on the lower front panel, ensuring that it
fits tightly against the edges of the recess.

3. Once the overlay is in place, press it firmly onto the frame to secure it.

➁).

Step 12. Reinstall Front Panel Jumpers

As shown in Figure 8, reinstall the six front panel jumper cables (part number N5245-20155).

Figure 8 Front Panel Jumper Cables Installation

1. See “Downloading the Online PNA Service Guide” on page 5.

20 Installation Note N5225-90103

Step 13. Position the Cables and Wires to Prevent Pinching

System

Service

Option Enable

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. Ribbon cables and wires must never be positioned on top
of hardware.

Step 14. Reinstall the Outer Cover

For instructions, click the Chapter 7 bookmark “Removing the Covers” in the PDF Service Guide1.

Step 15. Enable Option 217

Procedure Requirements

• The analyzer must be powered up and operating to perform this procedure.

• The Network Analyzer program must be running.

• A keyboard must be connected to the network analyzer.

Option Enable Procedure

1. To start the option enable utility, press UTILITY , then , then . An

option enable dialog box will appear.

2. Click the arrow in the Select Desired Option box. A list of available options will appear.

3. In the Select Desired Option list, click 217 - Configurable TS + Attens.

4. Using the keyboard, enter the license key in the box provided. The license key is printed on the the license
message you received from Keysight. Enter this key exactly as it is printed on the message.

5. Click Enable.

6. Click Yes in answer to the displayed question in the Restart Analyzer? box.

7. When the installation is complete, click Exit.

Option Verification Procedure

Once the analyzer has restarted and the Network Analyzer program is again running:

1. On the analyzer’s Help menu, click About Network Analyzer.

2. Verify that “217” is listed after “Options:” in the display. Click OK.

NOTE If Option 217 has not been enabled, perform the ”Option Enable Procedure” again. If the

option is still not enabled, contact Keysight Technologies. Refer to “Getting Assistance

from Keysight” on page 3.

Installation Note N5225-90103 21

Step 16. Perform Post-Upgrade Adjustments and Calibration

Adjustments

The following adjustments must be made due to the hardware changes of the analyzer.

•source adjustment

• receiver adjustment

These adjustments are described in the PNA Service Guide and in the PNA on-line HELP. A list of equipment
required to perform these adjustments is also found in the service guide.

To view this service guide information, click the Chapter 3 bookmark “Tests and Adjustments” in the PDF

Service Guide

After the specified adjustments have been performed, the analyzer should operate and phase lock over its
entire frequency range.

Operator’s Check

Perform the Operator’s Check to check 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 3.

1

.

1

.

Calibration

Although the analyzer functions, its performance relative to its specifications has not been verified. It is
recommended that a full instrument calibration be performed using the analyzer’s internal performance test
software. To view information on the performance test software, click the Chapter 3 bookmark “Tests and

1

Adjustments” in the PDF Service Guide

.

Step 17. Prepare the PNA for the User

1. If necessary, reinstall front jumper cables.

2. Install the cable guards, pushing them over the front jumper cables until the cushioning material touches
the front panel of the PNA.

3. Install the dust caps on the test ports.

4. Clean the analyzer, as needed, using a damp cloth.

1. See “Downloading the Online PNA Service Guide” on page 5.

22 Installation Note N5225-90103

This information is subject to change without notice.

© Keysight Technologies 2011, 2013, 2014

August 2014

*N5225-90103*

N5225-90103

www.keysight.com