RS232-T9 RS-232 LED Link Signal Tester

Product No.: RS232-T9

The Tittron DB9 RS-232 Tester is an essential inline debugging tool for legacy RS-232 serial equipment maintenance. It is widely used by field service technicians, automation engineers, lab technicians and workshop maintenance staff to troubleshoot PLCs, serial printers, POS terminals, industrial controllers and other 9-pin serial devices. This tester delivers a simple, reliable way to verify connections and monitor full RS-232 handshaking signals for any 9-pin serial link.

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Incoterms® 2020 Applies to all Tittron B2B orders.

Overview — RS232-T9 RS-232 LED Link Signal Tester

The Tittron DB9 RS-232 Tester is an essential inline debugging tool for legacy RS-232 serial equipment maintenance. It is widely used by field service technicians, automation engineers, lab technicians and workshop maintenance staff to troubleshoot PLCs, serial printers, POS terminals, industrial controllers and other 9-pin serial devices.

This tester delivers a simple, reliable way to verify connections and monitor full RS-232 handshaking signals for any 9-pin serial link. Install inline between your host and serial device, it monitors pin activity via LED indicators that flash whenever signal traffic or handshake activity is detected. Fully plug-and-play, it offers straightforward visual debugging for RS-232 communication links, including hardware handshake verification.

What stands out — RS232-T9 RS-232 LED Link Signal Tester

  • ■ Standard RS-232 DTE & DCE interface, equipped with DB9 Male and DB9 Female connectors
  • ■ Complies with RS-232 DB9 / DB25 pinout definitions; passive design, no external power supply required
  • ■ 9-channel LED array for monitoring TX, RX and all hardware handshaking signals
  • ■ Works with serial software on Windows, Linux and macOS hosts

Technical specifications — RS232-T9 RS-232 LED Link Signal Tester

Interface
DB9 Male, DB9 Female (RS-232 DTE/DCE)
Signal Lines Monitored
DCD, RXD, TXD, DTR, DSR, RTS, CTS, RI (8 active signal lines; GND is ground reference, no LED indicator)
Indicator
9 x LED status indicators
Operation Mode
Passive inline monitoring
Power Supply
No external power supply required
Max Supported Baud Rate
200 kbps
Pinout Standard
Compliant with RS-232 DB9 pin assignment

DOWNLOAD — RS232-T9 RS-232 LED Link Signal Tester

Datasheet, drivers and firmware for this model are available on request. Request datasheet via quote form and our team will send the files for your evaluation.

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