Serial Communication Cable Types

According serial data cables for these systems require the additional lines to be incorporated into the serial data cables for them to operate correctly.

Serial communication cable types.

Transmission modes serial communication. In null modem cable the tx transmitter pin of the male connector is linked up with the rx receiver pin of the female and the rx pin of the male is connected to tx pin of the female. Control cables are used to connect instrument transformers coils of circuit breakers and contactors control switches meters protection devices and other control and monitoring equipment. They are null modem and straight cable.

The rs232 cable shown above gives the more likely connections seen in an rs232 cable. A serial cable is a cable used to transfer information between two devices using a serial communication protocol. Serial cables are typically used for rs 232 communication. It has an uninsulated ground wire is not counted in the number of wires.

There are 2 types of rs 232 devices. There will be a source also known as a sender and destination also called a receiver for each transmission mode. A suitable cable is shown below. Types of cables used in control communication control cables.

The form of connectors depends on the particular serial port used. Serial standards rs 232 communications is the most popular method of plc to external device communications. The cables that carry digital video are almost invariably serial such as coax cable plugged into a hd sdi port a webcam plugged into a usb port or firewire port ethernet cable connecting an ip camera to a power over ethernet port fpd link etc. Often used for intercoms speakers and security systems this cable is designated as cm and cl2 or cmg so the insulation is flame resistant and approved for in wall installation in single level facilities.

Shielded cable has a layer of foil that blocks signal interference from nearby equipment and devices. Types of serial cables. Rs 232 is a communication interface included under scada applications. This serial communication standard is widely used and is often equipped on computers as standard.

However special network adapters sometimes called dongles connect an ethernet cable to a usb port indirectly. Serial communication can take many forms depending on the type of transmission mode and data transfer. To make serial communication possible between dte and dce two types of rs232 cables exist. Other standards such as rs422 and rs423 are similar to rs232 although they permit higher transmission rates and longer cable distances.

Typical rs232 serial data cable. Usb cables feature twisted pair wiring. The transmission modes are classified as simplex half duplex and full duplex.