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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
Double colors LED for easy cheeking of data transfer & receive
Works with Windows 7, 8, 10, Linux, Mac OS X
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. Pin Assignments: DB - 9 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 Additional Features and Specifications: RS-232 DTE connector : DB9 - M RS-232 DCE connector : DB9 - F Data rate : Up to 200 K bps With GND & Shell Test's LED Single / TTL out 1 - LED appear Green (V-) Single / TTL out 0 - LED appear Red (V+) Housing : Plastic Weight : 55g Dimensions (LxWxH) : 45 * 35 * 21 ( mm ) body OS SupportWindows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8 Linux and Mac OS 10.X