Advantages of RS232 | disadvantages of RS232

This page covers advantages and disadvantages of RS232. It mentions RS232 advantages or benefits and RS232 disadvantages or drawbacks.

What is RS232?

• RS232 is full duplex serial communication protocol.
• It uses voltage +/- 12V for transmission of binary data (0 or 1).
• RS232 cables have length of about 15 meters or 50 ft.
• The interface is widely used using DB9 and DB25 connectors.
• The following table mentions technical specifications of serial RS232 interface.

RS232 specifications

Refer RS232 interface>> for more information.

Benefits or advantages of RS232

Following are the benefits or advantages of RS232:
➨RS232 interface is supported in many compatible legacy devices due to its simplicity. It is widely used for point to point connection between DTE and DCE devices.
➨It supports long distances of about 50 feet (for low baud rates) and with error correction capabilities.
➨RS232 is immune to noise due to use of +/-5 Volts or higher for binary logic 0 and logic 1.
➨RS232 is low cost interface.
➨Converters or adaptors are available at cheaper rates for conversion from RS232 to RS485/USB/Ethernet etc.

Drawbacks or disadvantages of RS232

Following are the disadvantages of RS232:
➨It is suitable for system to system communications. It is not suitable for chip to chip or chip to sensor device communications.
➨Supports lower speed for long distances. Higher speed (i.e. 115200 baud) can be achieved for short distances only.
➨RS232 interface requires separate transceiver chips which will add cost to the system.
➨It is used for single master and single slave configuration and not for single master-multiple slaves mode.
➨It is unbalanced transmission.

Advantages and Disadvantages of other wireless technologies

IrDA    HomeRF    Bluetooth    Radar    RF    Wireless    Internet    Mobile Phone    IoT    Solar Energy    Fiber Optic    Microwave    Satellite    GPS    RFID    AM and FM    LTE   

What is Difference between

difference between OFDM and OFDMA
Difference between SC-FDMA and OFDM
Difference between SISO and MIMO
Difference between TDD and FDD

RF and Wireless Terminologies