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Serial Port Communication Software Windows 7Watch movies online for free. To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following: • If your serial port is not female, convert it by taking a female/female cable or gender changer and plugging it into the serial port. • Take a metal paperclip or wire and cross pins 2 and 3. ![]() ![]() 6 Common Communication Problems Involving Serial Connections. Arise with PC-to-data-logger communication over a serial connection. Has a COM port open, Windows. Windows 7 Serial Port CommunicationIf you look closely at the female end, the pins should be numbered. • Open a telnet session on the COM port number of the device that you are testing. To find out the COM port number, refer to the following FAQ:. Kof allstar. Note: To open a telnet session on the COM port, you need a telnet client like PuTTY or Hyper Terminal. Windows XP comes with Hyper Terminal. Configure Serial Port Windows 10• When the session is open, anything you type into it you should see. The loopback test fails when you cannot see what you are typing. If the loopback test fails, make sure that the serial cable or gender changer that you are using works and that the adapter is in the correct port. You can check multiple ports at the same time by opening multiple sessions, putting the loopback adapter on one port, and trying to type into each session.
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