Cisco CCNA Certifications Exam 640-816

There are four sets of 350-018 transmission bits that are used in the RS-232 standard. The positioning of these bits in the RS-232 data stream is all that distinguishes one bit from the other. This is also where serial communication really hits the "metal", because each bit follows in a sequence, or in a serial fashion. All of the other wires, pins, 640-801 baud rate, and everything else is to make sure that these bits can be understood. Keep in mind that at this point the entire protocol is based on the transmission of a single character. Multiple characters can be sent, 640-816 but they are a sequence of single character transmission events. How the characters relate is based on what the software does with the data on the next protocol "layer".