Is RS232 TTL compatible?
Is RS232 TTL compatible? Although the RS232 standard defines RS232 to be a True RS232 interface, and TTL is actually not compliant with the RS232 standard, in practice the majority of the RS232 serial ports we connect scanners to are TTL ports. What is a TTL converter? The so-called USB to TTL converter is actually a USB Serial Port to CMOS Logic-Level Serial Port converter. It has two ends: a USB connector, and four wires made to attach to terminal posts. It contains a chip that's able to trick your laptop into thinking a serial port is installed. What is...