Is RS232 compatible with RS485?
The PC is already equipped with RS232, which can be used directly. If RS485 communication is used, it is only necessary to connect an RS232 to RS485 conversion head on the RS232 port, and there is no need to modify the program.
What can you control with RS232?
With your devices connected to a control system via RS-232, there is the ability for a huge range of control options: switching between source and display device; changing channel, volume, light level and colour, opening and closing blinds and controlling temperature levels are just a few of the options only limited by …
What is the difference between RS485 and RS232?
RS232 is more than able to perform for a short distance and low data speed requirements. RS232 has a transmission speed of 1Mb/s up to 15M. However, RS485 has a data transmission speed of up to 10Mb/s for a distance of 15M. At the maximum of 1200M, RS485 transmits at 100Kb/s.
Is RS-232 outdated?
Two of the oldest interfaces are RS-232 and RS-485. These legacy interfaces aren’t obsolete or discontinued, though. Both are still alive and well in many applications. The whole purpose of a serial interface is to provide a single path for data transmission wirelessly or over a cable.
Why is RS232 still used?
While USB has become the standard, RS232 is still widely used for older printers in the workplace. The RS232 protocol and cable allow the computer to give commands to the printer via a voltage signal. This is one reason RS232 is not used as much as newer technology for remote installations.
Is RS232 outdated?
What is an RS232 port?
RS-232 (or Recommended Standard 232) is a standard computer communications system that’s more commonly known as a serial connection. You can also find RS-232 ports on the back of many advanced A/V receivers, where they can be used to connect the receiver to a PC for upgrading the software system within the receiver.
What can you do with a RS-232 connection?
In simple terms, an RS-232 connection on a projector, for example, allows you to control the device remotely using a third party interface, such as a Macro Wall Controller, PC-based control software or a touch screen device such as an iPad or Android tablet connected to a control processor.
Where is the transmit pin on the RS485?
Terminal marked A on CN1 is the Receive / Transmit control Pin for the RS485 flow control. Pulling this pin to Gnd will enable the Receiver on the RS485 and Pulling it High (connecting it to Vcc) will enable it to work in the transmit mode. To connect the MAX232 IC to the MAX485:
Who are the big players in RS-232 control protocol?
All the big players in the home and commercial control world such as AMX, Crestron, Control4 and Savant have the option to control devices via RS-232 in some shape or form.
What does parity mean in RS232 serial port?
Parity is a simple way to error-check. There are Even, Odd, Mark and Space indicators. You can also use no parity. For Even and Odd parity, the serial port sets the parity bit (the last bit after the data bit) to a value to ensure that the data packet has an Even or Odd number of logic-high bits.