Basically, RS-422 is fixed between the two ends of transmitter and receiver. The construction of RS-422 is designed so that it can deal with a greater noise level and is compatible with transmitting the data through a long cable.
They are also capable to support cloud or network systems. For the automation process and to meet the requirements of some industrial applications, RS-422 is mostly chosen. Moreover, RS-232 can support to transmit data up to 920 kbps. Comparatively, RS-422 is capable of transmitting data for more distance than RS-232. From the fundamental conception, the working of RS-232 and RS-422 is kind of different because RS-422 is capable of connecting more than one device at a time with the assistance of repeaters.įor connecting printers and monitors with the computers generally, the application of RS-232 serial port is seen. Sometimes some devices use an extra terminal block or connector transmission and did not have any particular connectors. Sometimes, RS-422 frequently uses a DB9 connector for communication purposes. The pin’s location can be determined from left to right in the following way: Data Carrier Detect, received data, transmit data, data terminal ready, ground, data set ready, request to send, clear to send, and the last one is ring detector. If we see a configuration of standard RS-232, then we can see it consists of 9 pin connector, which is commonly known as DB9.
RS-232 follows the standard communication process and is used as a computer port. It transmits data by following full-duplex mode, and one transmission is directed by utilizing two wires apiece. RS-422 takes assistance of twisted pair cable at the two ends for sending data. The relationship between cable length and signaling rate is proportional, which means the signaling rate becomes slower concerning the increase of cable length. This type of serial communication has the capability of driving the output current is 150 mA.It needs at least four wires for sending data and follows the point-to-point transmission method.The maximum data rate of RS-422 for 50 feet distance is 10 MBPS.This type of serial communication is capable of sending the data at a maximum distance of 4000 feet with a speed of 100 kbps.RS 422 is eligible to transmit data by following full-duplex and half-duplex communication mode.The data can be transmitted from one transmitter, but at the other end, there may be 10 receivers.It uses a single-ended multi-drop cable for transmitting data.
RS-422 mentions electrical specifications regarding a digital signaling circuit, it basically represents a technical standard of serial communication.
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