Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
U4611B
Keysight/Agilent U4611B, 4 Independent Triggers, 32 Counters, 18 GB Buffer, Protocol Analyzer for USB 3.0/2.0
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Keysight/Agilent U4611B Protocol Analyzer for USB 3.0/2.0
The Keysight U4611B protocol analyzer captures both SuperSpeed USB 3.0 at 5 Gbps and all USB 2.0 rates (480 Mbps, 12 Mbps, and 1.5 Mbps) within one continuous capture session. Events are stored in an indexed 18 GB hardware buffer for real-time capture. The full depth is instantaneously searchable using megazoom technology. Compressed by utilizing real-time trace indexing, a histogram of the full 18 GB can be viewed on a histogram view in approximately 15 seconds. Additionally, traces can be offloaded at speeds of 70 MB/sec when connected via Gigabit Ethernet or at speeds of up to 550 MB/sec via PCI Express, thus removing the delay that exists after capturing long periods of time in industrial environments.
The U4611B has four independent trigger sequencers that allow each sequencer to have 26 states, multiway branches, and direct access to 32 counters and 32 timers. With this architecture, intermittent faults within industrial USB stacks are easily isolated. These include faults such as errors during link training, misbehaviors due to power management, and random behaviors associated with device enumeration. Each LTSSM state transition is also automatically captured and displayed as part of the normal operation. Training Sequences, Recovery Sequences, and Compliance Sequences are automatically shown without having to manually scroll. Multiple views of the trace can be created using packet details, protocols, transactions, histograms, etc. Dragging any field into the trigger, filter, or search setup greatly facilitates troubleshooting and debugging.
In manufacturing and process control environments, the U4611B tests USB 3.0 cameras, data loggers, motion controllers, and HMI terminals. Using the External Trigger Input and Output Link, the analyzer can sync the USB Bus Capture to a Specific Phase in Machine Operation when used in conjunction with Logic Analyzers and Mixed-Signal Oscilloscopes. In addition to Pulse High, Pulse Low, and Toggle Modes, the External Trigger allows for the use of PLC outputs or limit switches to gate acquisitions. The analyzer can record hours of traffic, revealing host-controller handshake errors, bulk stream dropouts, and noise glitches that may only occur after long periods of operation, thereby significantly increasing the speed at which USB subsystems can be debugged in robotics systems, test stations, and monitoring systems.
| Model | U4611B |
|---|---|
| Part Type | USB protocol analyzer |
| Supported Standards | USB 1.0 / 2.0 / 3.0 |
| Max Speed | 5 Gbps |
| Memory Depth | 18 GB |
| Capture Mode | Simultaneous 2.0 + 3.0 |
| Trigger Engines | 4 sequencers |
| Trigger States | 26 per sequencer |
| Counters / Timers | 32 / 32 |
| Data Interface | PCIe, GbE |
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