This is why many of us need a phucking real RS-232 port on a real phreaking laptop! The same group of people who may be looking to purchace many laptops for technicians also dont want to spend thousands to get one. Nursecall systems, Access control systems, Elevators, Door controllers, HVAC. ![]() USB does not & can not carry the same voltage nor deliver it on the proper pins. Just dont answer unless you have some real information to pass on about a real laptop w/ a RS-232 port! ![]() these kind of answers are all over forums on the net, & obviosly the users dont know what the hell they are talking about. "Just buy any modern laptop and a USB Serial Port Adapter like the following" -this only works for basic uses of a serial port.
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