Can I connect RS-485 to RS-232?
To connect devices with a Serial RS232/RS485 port you need an adapter cable called a USB to RS232 adapter or USB to RS485 adapter, depending on if your device is using the RS232 protocol or the RS485 protocol. The major reason for this is that the low-cost adapter is made with a low-cost processor chip.
What is the difference between RS422 and RS-485?
Here are some main differences between 2-wire RS485 and RS422: RS485 can have multiple Commanding Devices and multiple Listening Devices. RS422 can have only one Commander and multiple Listeners. For example, you can connect one PC (the Commanding device) to 10 temperature controllers (listeners).
Is RS-485 single ended?
RS-422/RS-485 is used because of its single-ended nature and the full-duplex scheme of the RS-232 serial data transmission. Typically, low bit rates are employed, such as 19,200 or 38,400 bits/s, due to the industrial environments that install RS-485 buses.
What is 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 422 analog or digital?
RS-422, also known as TIA/EIA-422, is a technical standard originated by the Electronic Industries Alliance that specifies electrical characteristics of a digital signaling circuit.
What is a USB to RS485?
1 Description. The USB-RS485 cable is a USB to RS485 levels serial UART converter cable incorporating FTDI‟s FT232RQ USB to serial UART interface IC device which handles all the USB signalling and protocols. The cable provides a fast, simple way to connect devices with a RS485 interface to USB.
Can a RS485 interface be converted to RS232?
Take your signal from the (-) side to your RS232 interface and maybe it works and you’re done. Many RS485 interfaces when unloaded will give you a full 0 to 5V (or 3.3V) swing, and that will cross an RS232 threshold that is set at +1V or so.
Are there any transceivers for RS-422 and RS-423?
Please log in to show your saved searches. The low-power, high-speed transceivers of this family are designed for RS-485, RS-422 and RS-423 communication applications. They usually contain one driver and one receiver in half duplex configuration.
Which is the differential line transceiver for RS-485?
A 3.3 V differential line transceiver for RS-485 data transmissions in half-duplex mode, the STR485LV includes an external slew rate select pin able to switch between a fast data rate up to 20 Mbps or a slow data rate up to 250 kbps for longer cables.
What kind of current does a STMicroelectronics transceiver draw?
Each driver output and receiver input is protected against electrostatic discharge up to ± 15 kV and has no latch-up. These transceivers operate with a 5 V supply and draw a very low supply current when unloaded or fully loaded but with disabled drivers.
