How can I monitor RS232 connections with guaranteed time-tagging accuracy? How can I accurately monitor RS232 status line changes during communication?

How can I monitor RS232 connections with guaranteed time-tagging accuracy? How can I accurately monitor RS232 status line changes during communication?

Applies to: Docklight / Docklight Scripting / Docklight Pro Monitor (all versions), Article ID: dl_faq041

“Docklight Tap Pro” is a USB-based monitoring solution for true milliseconds time measurements or monitoring of RS232 status lines along with the protocol data. Additional features in comparison to the standard Docklight Tap include hardware time base with internal accuracy 1µs, RS232 status line monitoring (RTS/DTR/CTS/DSR/DCD/RI), baud rates up to 921600 bps, 3.3V/5V TTL and RS232 voltage levels. “Docklight Tap 485” in addition allows monitoring of RS485 2-wire and RS422 4-wire differential voltage buses. See the related Application Note and product information for more details.

Docklight Application Note – Docklight Tap Pro / Tap 485

Docklight Tap Pro – Product Information