The Teledyne LeCroy Frontline STA-232 is a specialized protocol analyzer for capturing, decoding, and analyzing asynchronous RS-232 serial communication. It enables real-time debugging and optimization of data transfer between serial devices through advanced protocol decoding, error detection, and flexible trigger configurations. The instrument supports baud rates to 921.6 Kbps with configurable data bits (5–8), stop bits (1–2), and parity types. Engineers gain immediate visibility into communication errors and can apply deep packet inspection using built-in decoders for Modbus, PPP, SLIP, TCP/IP, and Saia-Burgess S-Bus protocols, or write custom decoders via DecoderScript. Timestamping resolution exceeds 1 microsecond for precise event correlation.
– Technical Specifications
• Baud Rates: Up to 921.6 Kbps; supports non-standard and user-defined rates
• Data Bits: 5, 6, 7, or 8 bits configurable
• Stop Bits: 1, 1.5, or 2 bits
• Parity: None, Odd, Even, Mark, Space, Ignore
• Bit Order: LSB first (normal) or MSB first (reversed)
• Flow Control: Xon/Xoff (software) and RTS/CTS, DTR/DSR (hardware)
• Timestamping: Better than 1 microsecond resolution; absolute and relative modes
• RAM Required: 1 GB minimum; 2 GB recommended
• Hard Disk Space: 50 MB free; capture size limited by available disk
• Power: USB bus-powered; no external supply required
– Key Features
• Built-in decoders: Modbus RTU/ASCII, Async PPP, SLIP, TCP/IP stack (ARP, RARP, DNS, HTTP, ICMP, IGMP, NBDS, NBNS, NBSS, SMTP, UDP), Saia-Burgess S-Bus
• Real-time error highlighting and live error capture
• Dual-end monitoring: DTE-only, DCE-only, or both (via RS-232 ComProbe II)
• Custom decoder support through DecoderScript language
• Spy and Transmit modes for built-in PC serial ports
– Typical Applications
• Serial protocol development and validation
• Device-to-device communication troubleshooting
• Industrial control system debugging
• Data acquisition system optimization
– Compatibility & Integration
• Hardware: RS-232 ComProbe II; RS-422/485 ComProbe
• Software: NetDecoder Software
• Operating Systems: Windows 7, 8.1, 10 (32-bit and 64-bit)
• Processor: Pentium 1 GHz or faster
• Connectivity: USB 2.0 port (ComProbe); optional serial port (Transmit Mode)


















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