RS232 Breakout Tester LED Monitor, DB9 Male to Female Breakout Module

Description 1, Connect in series with any RS-232 interface for testing a serial RS-232 data link.

Simple and easy, no oscilloscope is needed.

DIP switch can setting disconnect or reconnect any signal, and support external probe test signal from male or female position.

2, 8 double-color (red and green) LEDs indicate the logic states for respective data lines.

Green for logic HIGH and red for logic LOW.

Full RS232 spec compliant with LEDs for all 8 signals: DCD, RXD, TXD, DTR, DSR, RTS, CTS, RI.

3, No external power required.

No driver required.

Plug and play.

Jack sockets (nuts) on the tester can be unscrewed easily (with metal shell held in place) if needed to mate with another connector that has jack sockets.

4, OS Compatibility: Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8 as well as Linux and Mac OS 10.X, ect.