Keysight Technologies UXG X-Series Installation and operation manual

Kit Part Numbers:
N5191-60501 - For Option 520 and 52E
N5191-60502 - For Option 540 and 54E
N5191-60503 - For Option 520 and 52E, 1EM
N5191-60504 - For Option 540 and 54E, 1EM
Keysight UXG X-Series
Agile Signal Generators
Add Option AT2 (Attenuator)
Installation Note

Notices
© Copyright 2017 Keysight Technologies, Inc.
The information contained in this document is subject to change without notice.
Keysight Technologies makes no warranty of any kind with regard to this material, including but
not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Keysight Technologies shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this material.
Manual Part Number
N5191-90020
Edition
Edition 1, March 2017
Supersedes January 2017
Printed in USA/Malaysia
Published by:
Keysight Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA 95403

Installation Note N5191-90020 3
Add Option AT2 (Attenuator) Upgrade Kit
Add Option AT2 (Attenuator) Upgrade Kit
Kit part numbers:
— N5191-60501
— N5191-60502
— N5191-60503
— N5191-60504
Introduction
This upgrade kit adds Option AT2 (Attenuator) to the UXG X-Series Agile Signal Generators.
Installation includes the following major steps:
1. Check signal generator functionality, page 6.
2. Check the instrument firmware and update if it is < A.01.60, page 6.
3. Remove the outer and inner signal generator covers, starting on page 8.
4. Install Option AT2, page 9.
5. Activate Option AT2, page 18.
6. Verify proper installation of Option AT2, page 19
7. Re-assemble the signal generator, page 20.
8. Verify signal generator calibration, page 21.
Product Affected: . . . . . . . . . . . . . . . . . . . . . . . . . N5191A, N5193A
Serial Numbers: . . . . . . . . . . . . . . . . . . . . . . . . . . All
Options: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To Be Performed By: . . . . . . . . . . . . . . . . . . . . . . (X) Keysight Technologies Service Center
(X) Personnel Qualified by Keysight Technologies
( ) Customer
Estimated Installation Time: . . . . . . . . . . . . . . . 1.5 hours
Estimated Verification Time: . . . . . . . . . . . . . . . Option 520/52E = 8 hours
Option 540/54E = 15 hours

4Installation Note N5191-90020
Add Option AT2 (Attenuator) Upgrade Kit
Installation Kit Parts List
Table 1 N5191-60501, for Option 520/52E
Quantity Description Part Number
1 UXG X-Series Agile Signal Generators Add AT2 to Option 520/52E
and 540/54E Installation Note
this note
1 Output Leveling Assembly Option AT2/520 N5191-60370
1 Cable, RF, Semi-Rigid, Mod Filter Output to Coupler Input, Option
520/52E
N5191-20129
1 Entitlement Certificate n/a
Table 2 N5191-60502, for Option 540/54E
Quantity Description Part Number
1 UXG X-Series Agile Signal Generators Add AT2 to Option 520/52E
and 540/54E Installation Note
this note
1 Output Leveling Assembly Option AT2/540 N5191-60374
1 Cable, RF, Semi-Rigid, 40 GHz Doubler Output to Coupler Input,
Option 540/54E
N5191-20173
1 Entitlement Certificate n/a
Table 3 N5191-60503, for Option 520/52E 1EM
Quantity Description Part Number
1 UXG X-Series Agile Signal Generators Add AT2 to Option 520/52E
and 540/54E Installation Note
this note
1 Output Leveling Assembly Option AT2/520 N5191-60371
1 Cable, RF, Semi-Rigid, Mod Filter Output to Coupler Input, Option
520/52E
N5191-20129
1 Entitlement Certificate n/a
Table 4 N5191-60504, for Option 540/54E 1EM
Quantity Description Part Number
1 UXG X-Series Agile Signal Generators Add AT2 to Option 520/52E
and 540/54E Installation Note
this note
1 Output Leveling Assembly Option AT2/540 N5191-60375
1 Cable, RF, Semi-Rigid, 40 GHz Doubler Output to Coupler Input,
Option 540/54E
N5191-20173
1 Entitlement Certificate n/a

Installation Note N5191-90020 5
Add Option AT2 (Attenuator) Upgrade Kit
Tools Required
— TORX T-10 driver
— TORX T-15 driver
— TORX T-20 driver
— 5/16” open-ended wrench
— Needle-nose pliers
—Scissors
Safety Considerations
Before you disassemble the instrument, turn the power switch off and unplug the signal
generator. Failure to unplug the signal generator can result in personal injury.
Electrostatic discharge (ESD) can damage or destroy electronic components. All work on
electronic assemblies should be performed at a static-safe workstation.

6Installation Note N5191-90020
Add Option AT2 (Attenuator) Upgrade Kit
Check Signal Generator Functionality
Use the following procedure to confirm that the signal generator powers up and the internal check
identifies no errors. The internal check evaluates the operation of the signal generator and returns
an error message if it detects a problem.
1. Turn on the signal generator and let it warm up for at least five minutes.
2. Run the signal generator self-test by pressing System > Instrument Info/Help Mode > Self
Test > Run Complete Self Test. Upon completion, a summary of the self-test will be
displayed. Use the N5191A N5193A Service Guide to troubleshoot any failures detected by the
test.
3. Check to see if the ERR annunciator is on.
—If the ERR annunciator is on, review the error messages in the error queue by pressing
System > Error Info. The first page of error messages in the error queue appears in the
display text area. (Refer to the signal generator error messages document for information
about each error message.)
After resolving all problems causing errors, press Clear Error Queue(s).
—If the ERR annunciator is off, the signal generator functionality check has passed.
Update Instrument Firmware
Updating the instrument firmware before installing the new hardware will help ensure that the
hardware installation is successful.
Go to the following website to update instrument firmware:
http://www.keysight.com/main/software.jspx?ckey=2548533&lc=eng&cc=US&nid=-32491.1150
339&id=2548533
When the signal generator is first connected to ac line power, Reference Oven Cold
occurs which causes the OVEN COLD annunciator to turn on.
After approximately five minutes, the OVEN COLD annunciator automatically clears.
Some circuits may require up to 50 minutes to warm up before passing the
self-test. If self-tests continue to fail after 50 minutes of warm up, troubleshoot
the instrument.

Installation Note N5191-90020 7
Remove the Outer and Inner Bottom Rear Cover
Remove the Outer and Inner Bottom Rear Cover
Remove the Outer Cover
Refer to Figure 1.
1. Disconnect the power cord.
2. Using a T-20 driver, loosen the screws (1) and remove the strap handles (2) from both sides
of the instrument.
3. Remove the four bottom feet (6) from the cover by lifting the tab and sliding the foot toward
the tab.
4. Using a T-20 driver, remove the center screws (3) on the four rear-panel feet (4).
5. Place the signal generator on its side.
6. Slide the outer cover (5) back to remove it from the frame.
Figure 1 Outer Cover Removal
The RF connector can be easily damaged. Use extreme caution to not damage the RF connector
when lifting the rear of the signal generator.

8Installation Note N5191-90020
Remove the Outer and Inner Bottom Rear Cover
Remove the Inner Bottom Rear Cover
Refer to Figure 2.
1. Place the signal generator upside down.
2. To remove from the rear bottom cover (1), use a T-10 driver to remove the twelve screws (2)
(including two on the rear panel).
Figure 2 Inner Bottom Rear Cover Removal

Installation Note N5191-90020 9
Installing Option AT2
Installing Option AT2
Remove Existing A20 Output Leveling Assembly
1. For Option 520/52E instruments, refer to Figure 3.
For Option 540/54E instruments, refer to Figure 4.
For Option 520/52E 1EM instruments, refer to Figure 5.
For Option 540/54E 1EM instruments, refer to Figure 6.
2. Disconnect the semi-rigid cable (2) at the location shown. Disconnect the RF out cable at the
location indicated (3).
3. Remove the ten screws (1) (0515-0372) that attach the A20 Output Leveling assembly to the
deck. The Output Leveling assembly can now be lifted from the deck.
Figure 3 Option 520/52E - Remove Existing A20 Output Leveling Assembly
(Front Panel RF Output)

10 Installation Note N5191-90020
Installing Option AT2
Figure 4 Option 540/54E - Remove Existing A20 Output Leveling Assembly
(Front Panel RF Output)

Installation Note N5191-90020 11
Installing Option AT2
Figure 5 Option 520/52E 1EM - Remove Existing A20 Output Leveling Assembly
(Rear Panel RF Output)

12 Installation Note N5191-90020
Installing Option AT2
Figure 6 Option 540/54E 1EM - Remove Existing A20 Output Leveling Assembly
(Rear Panel RF Output)

Installation Note N5191-90020 13
Installing Option AT2
Install A20 Output Leveling Assembly with AT2 Attenuator
1. For Option 520/52E instruments, refer to Figure 7.
For Option 540/54E instruments, refer to Figure 8.
For Option 520/52E 1EM instruments, refer to Figure 9.
For Option 540/54E 1EM instruments, refer to Figure 10.
2. Place the new A20 Output Leveling Assembly with AT2 attenuator into position on the
Microdeck. Replace the 10 screws (1) removed earlier. Recommended torque for all screws is
9in–lbs.
3. Using the 5/16” open ended wrench, attach the semi-rigid cable (2), according to the signal
generator you have, between the coupler and the A17 Agile Mod Filter or the A19 40 GHz
Doubler at the locations shown. Torque to 9 in-lbs.
—Option 520/52E and Option 520/52E 1EM: N5191-20129
—Option 540/54E and Option 540/54E 1EM: N5191-20173
4. Reattach the RF out cable (3) at the location indicated. Torque to 9 in-lbs.
5. Install ribbon cables W31 and W32 at the locations shown.

14 Installation Note N5191-90020
Installing Option AT2
Figure 7 Option 520/52E Instruments - Install A20 Output Leveling Assembly with AT2
Attenuator (Front Panel RF Output)

Installation Note N5191-90020 15
Installing Option AT2
Figure 8 Option 540/54E Instruments - Install A20 Output Leveling Assembly with AT2
Attenuator (Front Panel RF Output)

16 Installation Note N5191-90020
Installing Option AT2
Figure 9 Option 520/52E 1EM Instruments - Install A20 Output Leveling Assembly
with AT2 Attenuator (Rear Panel RF Output)

Installation Note N5191-90020 17
Installing Option AT2
Figure 10 Option 540/54E 1EM Instruments - Install A20 Output Leveling Assembly
with AT2 Attenuator (Rear Panel RF Output)

18 Installation Note N5191-90020
Activate Option AT2
Activate Option AT2
1. Turn the signal generator on and allow it to warm up for 5 minutes.
2. Follow the instructions on the Entitlement Certificate to redeem Option AT2.
3. Connect the instrument to the LAN and write down the IP address.
4. Get the IP address from the instrument by pressing System, I/O Config, LAN Setup, IP
Address: xxx.xxx.xxx.xxx.

Installation Note N5191-90020 19
Verify Proper Installation of Option AT2
Verify Proper Installation of Option AT2
1. Press: System > Instrument Info > Options Info.
2. Make sure Option AT2 is listed.
If you enable an option that does not have the required hardware installed, the
menus for that option will be activated but the option cannot operate.

20 Installation Note N5191-90020
Re-Assembling the Instrument
Re-Assembling the Instrument
Refer to Figure 1 and Figure 2.
1. Reinstall the inner bottom rear cover and outer instrument cover by reversing the order for
removal.
2. Torque all T-10 screws to 9 in-lbs.
3. Torque all T-20 screws to 21 in-lbs.
4. Cut out an Option AT2 label and attach it to the rear panel, near the original serial number
label.