This RS-232 tester by Delock is compact and suitable as a connection and interface tester without any additional power supply. The 9 LEDs (red, green, off) have two colours and indicate the logical state of each of the data lines. It is also possible to determine e.g. interruptions, crossed wires or a short circuit. Ports & interfaces Connector 1: DB9 Connector 2: DB9 Connector 1 gender: Male Connector 2 gender: Female Weight & dimensions Width: 35 mm Depth: 45 mm Height: 21 mm Weight: 55 g Packaging data Package type: Box Packaging content Quantity per pack: 1 pc(s) Manual: Yes Performance Product colour: Black Housing material: Plastic LED indicators: Yes Plug and Play: YesShow moreShow less