“Is this a Null Modem cable...standard cord will not work for my application”
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There should be no null modem built into this converter, which means that your RS-232 device may need to be connected with one. The USB adapters typically do not provide much power over the connection to RS-232, so you result may vary according to the maker of that device and whether or not it is getting a good power supply voltage. Almost any older laptop ( best to find one that had Windows XP or NT installed ) that has a DE-9 serial port should work with appropriate software. Many folks would recommend Putty or Procomm(tm) communications software with hardware handshaking set to none, rather than DTR or RTS/CTS for testing purposes. Spend $15-$20 at any older computer repair or TV shop, or find one at an amateur radio 'hamfest'. Use one known-good null-modem connection to test the new USB-RS232 converter. Be aware that your PC using the USB end may or may not need expert configuration for connection to some equipment. This involves the use of the 'control panel', and is not for PC beginners. The gender ( male pins or female sockets ) of your device not matching the RS-232 side of the converter is usually a dead giveaway that you would need a null modem ( some are wired different from others ). Older modems expect to be known as DCE ( data communication equipment ) and connected to a PC which would be typically wired as DTE ( data terminal equipment ). Without knowing that designation of your equipment or the BPS rate and other parameters- I cannot say more.
Sorry, there was a problem. Please try again later.Yes it is. I use it for connecting to standard serial port on equipment for maintenance and use a terminal emulation software
Sorry, there was a problem. Please try again later.Remember that you have to match the required configuration. Depends on the application you are using as modem.
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