Are RS232 and RS485 compatible?

The standards definitely are not compatible. Therefore your assumtion that this indeed is no RS485 device may be true. And you have a voltage problem: RS485 generates no negative voltages reference to GND, but RS232 needs this.

What is RS485 serial communication?

RS-485 is a duplex communication system in which multiple devices on the same bus can communicate in both directions. RS-485 is most often used as half-duplex, as shown in the figures above, with only a single communication line (‘A’ and ‘B’ as a pair).

What is the difference between RS232 and serial?

RS-232 signals are similar to your microcontroller’s serial signals in that they transmit one bit at a time, at a specific baud rate, with or without parity and/or stop bits. The two differ solely at a hardware level. On most PCs these signals swing from -13 to +13V.

What are the 2 types of serial communication?

There are two broad types of serial communication: synchronous and asynchronous. There are a very large number of different standards and protocols for serial communication, ranging from the very simple to the seriously complicated. It is important to match the right protocol with the right application.

What are the 3 differences between RS232 and RS485?

RS232 is full-duplex, RS485 is half-duplex, and RS422 is full-duplex. RS485 and RS232 are only the physical protocol of communication (ie interface standard), RS485 is the differential transmission mode, RS232 is the single-ended transmission mode, but the communication program does not have much difference.

What is RS232 serial communication?

RS232 is a Serial Communication Standard developed by the Electronic Industry Association (EIA) and Telecommunications Industry Association (TIA). RS232 defines the signals connecting between DTE and DCE. RS232 uses serial communication, where one bit of data is sent at a time along a single data line.

Can I use CAT6 cable for RS232?

The DB9 RS232 COM signal is transmitted over the network cable,When using this adapter, it is recommended to use within a distance of 1-15 meters. Interface: DB9 Male to RJ45 female; 9pin/8P8C. the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.

What is the difference between TTL and RS232?

RS232 vs TTL: What’s the difference? RS232 more extreme voltages help make it less susceptible to noise, interference, and degradation. The minimum and maximum voltages of RS-232 signals are +/-13V, while TTL signals are 0 to 3.3V/5V.

Is USB parallel or serial communication?

The USB cable is an example of a serial style cable. As you can see the connector head looks substantially different than the parallel cable simply because it is smaller and does not have visible pins.

What is RS232 to RS485?

RS232 to RS485 converters can be either isolated or non-isolated. An isolated RS232 to RS485 converter have optical isolators separating the data lines inside the unit, this prevents noise, high voltage spikes, surges and ground-loops from damaging your computer or the equipment you have connected to the converter.

What is the difference between RS232 and UART?

UART is a communications protocol, whilst RS232 defines the physical signal levels. That is, while UART has everything to do with logic and programming, it has nothing to do with the electronics per se. Whilst RS232 refers to the electronics and hardware needed for serial communications.