

RS-232 LED link Tester
Introduction
The DB9 Tester is the easiest way for you to test the connection on any male or female 9 Pin Serial connections. This adapter allows you to monitor the status of your connections by marking them with LEDS, which flash when there is activity on the pins. This device is easy to install, it features a Plug & Play Easy test RS-232 Host to Device link.
Features
- Standard RS-232 DTE & DCE Interface with DB-9 / F & DB-9 / M Connectors.
- RS-232 DB-9 / DB25 Pin assignment No Power required.
- Easy to install , Plug & Play.
- Windows 11, 10, 8, 7, Linux, & macOS
- Data rate: Up to 200 Kbps

Activity Monitoring LED Array
Double color LEDs are implemented for an easy way to monitor the transferring & receiving of data. Pin Assignment:
- Pin1 / Pin8 : DCD IN
- Pin2 / Pin3 : RXD IN
- Pin3 / Pin2 : TXD OUT
- Pin4 / Pin20 : DTR OUT
- Pin5 / Pin7 : GND
- Pin6 / Pin6 : DSR IN
- Pin7 / Pin4 : RTS OUT
- Pin8 / Pin5 : CTS IN
- Pin9 / Pin22 : RI IN

Easily Portable
With the tester's compact size along with an easy Plug & Play setup, quickly make sure your COM ports are working properly, effortlessly.
Dimensions: 1.77 × 1.38 × 0.82 in. (L × W × H)


RS-232 LED link Tester
Introduction
The DB9 Tester is the easiest way for you to test the connection on any male or female 9 Pin Serial connections. This adapter allows you to monitor the status of your connections by marking them with LEDS, which flash when there is activity on the pins. This device is easy to install, it features a Plug & Play Easy test RS-232 Host to Device link.
Features
- Standard RS-232 DTE & DCE Interface with DB-9 / F & DB-9 / M Connectors.
- RS-232 DB-9 / DB25 Pin assignment No Power required.
- Easy to install , Plug & Play.
- Windows 11, 10, 8, 7, Linux, & macOS
- Data rate: Up to 200 Kbps

Activity Monitoring LED Array
Double color LEDs are implemented for an easy way to monitor the transferring & receiving of data. Pin Assignment:
- Pin1 / Pin8 : DCD IN
- Pin2 / Pin3 : RXD IN
- Pin3 / Pin2 : TXD OUT
- Pin4 / Pin20 : DTR OUT
- Pin5 / Pin7 : GND
- Pin6 / Pin6 : DSR IN
- Pin7 / Pin4 : RTS OUT
- Pin8 / Pin5 : CTS IN
- Pin9 / Pin22 : RI IN

Easily Portable
With the tester's compact size along with an easy Plug & Play setup, quickly make sure your COM ports are working properly, effortlessly.
Dimensions: 1.77 × 1.38 × 0.82 in. (L × W × H)











