MSO/UPO3000CS-COM PC serial bus trigger and analysis (RS232/UART)
Overview
The MSO/UPO3000CS-COM adds RS232/UART serial bus triggering, decoding, and search to your MSO/UPO3000CS Series oscilloscope — the most fundamental serial interface in electronics, used for debug consoles, GPS modules, Bluetooth modules, and inter-processor communication.
See what's actually happening on a serial port — not just what a terminal shows, but electrical signal and decoded data together. The option is enabled by a software license keyed to the oscilloscope's serial number and is permanent for the life of the instrument.
Key Features
- UART/RS232 Triggering — Trigger on data bytes, parity errors, framing errors, or break conditions.
- Real-Time Frame Decoding — Decoded UART frames display on the waveform with data bytes, parity, and framing identified.
- Configurable Parameters — Standard baud rates (1200 to 921600+), 5-9 data bits, parity, 1-2 stop bits.
- Dual TX/RX Decoding — Decode both transmit and receive lines for full-duplex analysis.
- Lifetime License Activation — activate once, owned for the life of the instrument. No subscriptions, no renewals, no maintenance fees.
When You Need This Option
The option fits the following workflows:
- Debug Console Capture — Trigger on a specific error string in UART boot messages and capture surrounding traffic with full waveform context.
- GPS Module Integration — Decode NMEA sentences to verify baud rate and data integrity when the module won't communicate with the host.
Compatibility
This option is compatible with all UPO1000CS and MSO3000E Series oscilloscopes. The same capability is offered on other UNI-T oscilloscope families: MSO/UPO2000.
Frequently Asked Questions
Should I buy this individually or get a bundle?
If you only need RS232/UART, the individual license covers exactly that protocol. The BND bundle includes every protocol in the series.
How is this option activated?
The option is enabled by a software license keyed to the oscilloscope's serial number. After purchase, the license is registered on the UNI-T website to generate the license file, which is then loaded onto the instrument from a USB drive through the option-install menu. Refer to the oscilloscope's user manual for the step-by-step procedure.
Is the license permanent, or does it require renewal?
The license is permanent — a one-time purchase that stays active for the life of the instrument. No subscriptions, no annual renewals, and no expiration.
