Questions tagged [rs232]
RS-232 (also known as EIA RS-232C or V.24) is a standard for serial binary data exchange between a DTE (data terminal equipment) and DCE (Data Communication equipment). It is commonly used in the serial ports of PCs.
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Weighing Scales connected by RS232 to USB keeps disconnecting
i have some weighing scales with a serial port (RS232) and are connected to Windows 10 PC with a Serial to USB Cable.
The scales are detected (COM3) and drivers are installed correctly, and im able ...
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Safely Transition from RS232 “Dumb Terminal” to RJ45 Telnet/SSH
An HPUX 11i network, running on new hardware, for what they call “mission critical” operations at a unique business, terminates for the user at Sherwood 7000STs. While functional (and lightning fast ...
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Serial connection recieving continuous junk
I am trying to connect over a serial port to an HP AM867A switch (more broadly it is a Brocade 8gb SAN switch). I got the switch used so I am trying to perform password resets. The switch is running ...
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Control Amplifier from Computer via RS232
I got a second hand Rotel RSX-1056 amplifier that I would like to control from my computer (because I don't have the remote).
The amplifier has a serial port (RS232) and on the web I was able to find ...
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Linux server to send and receive from RS-232 using socat
I'm trying to bench test a configuration where a Linux server will send and receive RS-232 data from a Black Box RS-232 to Ethernet converter. I've followed this example. I've configured ser2net.conf ...
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How to transfer data between RS-422 and RS-485 ports?
I'm relatively new to behaviors of serial ports such as RS-232, RS-422, and RS-485.
I'm wondering how do you initiate data transmission between a system and a device connected to each other by one ...
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Setting RS-232 RTS pin
I am experimenting with my PC's RS-232 interface on Win7. I want to toggle the RTS line state with "mode com1: rts=on" command. However monitoring the RTS line with multimeter shows that the state of ...
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Installation of USB-to-RS232 driver fails
When I connect my USB-to-RS232 ADAPTER on USB 2.0 port on Windows 7 (64-bit), I get:
Device driver software was not successfully installed
Prolific USB-to-Serial COMM Port (Failed)
On Device ...
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What does the BIOS of a motherboard interpret as a wake-up signal on the COM port?
I have a motherboard (Gigabyte 990fxa-ud3) that I want to wake up using a ring event on the COM port, but I am unable to do so. I generate the ring event with an atmega32a.
The BIOS settings are ...
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How do I make a USB RS232 dongle show up in /dev/ttyUSB* in Ubuntu 10.04?
I have a couple of FTDI based USB to Rs232 serial dongles. Sometimes when I plug them into my Ubuntu 10.04 laptop, they show up as /dev/ttyUSB0 and /dev/ttyUSB1. Sometimes they don't. When they don'...
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Do new computers still come with RS-232 ports?
Is the RS-232 port still being used on new computer or is it going to be deprecated?
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RS232 to VGA adapter [duplicate]
I have some devices with an RS232-connection (e.g. a beamer, a TTL-to-RS232-adapter for my NanoPI R1 described here, etc). No i have found a RS232 to VGA adapter:
Now i wonder, if I would have this ...
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Can non IP data formats over cat5 / 6 (eg. RS232 etc..) damage an IP switch?
Can various data formats can be run over a cat5 / 6 cable with RJ45 ends.
These can include (not an exhaustive list)
HDbaseT
RS232 / RS485 (using an RJ45 to serial adaptor on the end)
POE Cat6 (...
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linux high speed character detection rs232
I have to do a code in C to detect the inter-characters time within a rs232 line on linux. Inter-characters time to detect could be 1ms. So I need something to timestamp very quickly an incomming ...
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Does this RS232 Serial Cable require an external Power Supply?
I have a device that supports USB and RS-232 protocols but the device comes with only USB cable. The device works just fine with USB cable, however, I need to use the RS-232. I've purchased RS232 ...
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Targus USB-to-RS232 not working with Linux?
I have the Targus PA088 USB to RS232 converter, but it seems that it does not work with linux. Its RX and TX lights are flashing, but I can't see the data in minicom/picocom. When using it with ...
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May I know where to buy this adapter and do i need to install a driver to use it? [closed]
May I know where to buy this adapter and do i need to install a driver to use it?
I tried to reply to that post but i'm not allowed to : (
Referenced post - Using an Rj45 to D9 RS232 Adaptor with a ...
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Why some USB Serial converters work and others don't on specific hardware?
I went online and brought a pack of the cheapest USB to Serial adaptor, put TX on RX and RX on TX and was able to communicate between the 2 ports without any issue.
So I plug the thing in a device ...
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Can a single cat5e cable be used to transmit RS232 and 100BaseT?
Ive got a single cat5e cable running from point a to point b. I need to run RS232 and 100BaseT over it.
I know i can get 100BaseT over the cable by using only 2 pairs. But can i use the remaining 2 ...
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Putty serial port access to RS-232 console showing double character display with USB/Serial cable
I am trying to access a Matrix Sense firewall administration console through its RS-232 interface and the display I get with Putty is weird.
The hardware is a PC Engines APU4B4 motherboard.
I am ...
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Read serial input from RS232 to USB converter
I want to connect a barcode scanner to my PC and read its output from a selfmade program. I know that there are basically two methods of obtaining output from a barcode scanner:
As Keyboard Wedge - ...
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Forward internet connection over RS-232 Port
I have a Campbell Scientific CR1000 board and have a wireless modem that I plug into the board's RS-232 Port. In order to save data, I would like to forward/bridge my internet connection from my ...
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Telnet into a linux machine using an RJ45-RS232 cable
my linux machine doesn't have a RS232 port, only an RJ45. I also have my grandpa's old pentium machine running windows 95 that has an RS232 port. The only means of interfacing these two computers are ...
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Serial cable vs USB-to-serial adapter
I have a device with RS-232 and a control program on PC. It works fine via serial cable but with usb-to-serial some functions don't work correctly.
Why usb-to-serial doesn't work?
I tried to change ...
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USB-RS232 adapter
I have an USB-RS-232 adapter that when I plug it into my Windows 7 laptop comes up as a ps/2 + USB input device.
How do I go about changing this?
I don't have the original driver disk and there ...
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How to disable mouse function for a RS232 usb device in Windows 7?
I have this RS232 USB device that Windows 7 thinks its a mouse. When it's activated the mouse cursor starts to jump to random places on the screen. I want to use this device but I want to disable this ...
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replacing pos kitchen printer keeping the rs 232 in place converting both ends to ethernet
I am replacing kitchen printers that run on what I believe is RS232 cabling with a 25 pin plug into the printer. On the other end at the terminal it is terminated with a 9 pin plug to an ethernet ...
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Conecting a controller's RJ45 port to laptop's USB port
I have a CNC controller that uses RJ45 socket as a input for reciving instructions from my laptop. I use a USB to RS232 adapter and then RS232 to RJ45 adapter to finally connect my controller using a ...
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Configure Serial port for ethernet
I have an unmarked cable that adapts an rs232 serial port to an Ethernet jack. How do I configure my ubuntu 18.04 machine to work with it?
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Putty received data only shows after pressing Enter
I am working on an application which pulls data from an RS232-enabled device. I am able to connect to the device using Putty and send queries, however the response is not shown immediately in Putty. I ...
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Cabling between inverter and single board computer
I'd like to interface an inverter with Gateworks GW5220. The inverter has an RS232 port shown below and GW5220 has a 5-pin RS232 Serial interface. The GW5220 serial connector is labeled as follows:
...
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How Can I Communicate RS485 Device With PC
I'm trying to communicate with a RS485 device with my PC. I connected RS485 device to RS485-RS232 converter. RS485-RS232 converter is connected to the USB-RS232 converter and USB-RS232 converter is ...
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Adding RS232(Serial Port) to motherboard
I need to add a RS232(Serial Port) connection to my pc, and unfortunately I'm unable to use RS232 to USB adapter, only direct RS232 connection, I have seen this item: https://www.aliexpress.com/item/...
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Relationship of system serial drivers to RS-232
I am trying to strengthen my understanding of serial ports and device drivers.
I was told that the serial port standard, RS-232, defines the electrical characteristics and timing of serial port ...
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windows 7 - serial port communication, setting stop bits
I have a program which reads/writes to a serial port (com). I suspect that the program sets 2 stops bits for the communication (it has some problems with reading messages). I can't change a ...
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Finding the address of a control register for a serial port in Ubuntu (or UBOOT)
I'm relatively new to Ubuntu and serial ports.
I'm trying to find the address of the control register, that controls serial port 1 in Ubuntu. The Serial Port is using the RS232 method to communicate ...
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Lantronix ETS16P: Escape Sequence
I have an Lantronix ETS16P serial terminal server which I have configured to login via telnet and have access to the serial port of my servers, routers, switches. I have done this by configuring a ...
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Can a RS-232 COM port damage the motherboard's SATA controller?
We have a chromatograph connected to a computer through one of those old COM ports (RS-232 serial port). That COM port is onboard, connected directly to the motherboard's logic. The motherboard has 4 ...
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USB to Serial Connection - Danger to Motherboard from Electric Shock?
Last night I setup a machine that talks to our security system over Serial Connection. The serial cable goes through the roof of our building. The machine I setup this one, also hosts important VM's. ...
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Sending commands via serial connection
I've got a Sartorius GD-503 electronic lab scale that I'm trying to work into a control setup. I've got both the regular manual and the data interface description manual.
So far I've got my laptop ...
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Netgear Prosafe GSM7248 Console problems
Hey all this is my first time dealing with a managed switch and i seem to be having issues with trying to log into the RS232 console on it.
First thing i did was reset it back to factory defaults (i ...
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ATEN USB to Serial driver on Windows 8 - using Linux driver?
I'd like to use an ATEN UC232A USB to serial converter on my computer with Windows 8. I downloaded the appropriate driver which seems to work but after a while produces a blue screen because of the ...
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how to skip Hyperterminal splash page (spinning globe)
Is there a secret trick to skipping the 5 second animated splash screen when Hilgraeve HYPERTERMINAL starts?
When I open HyperTerminal (HyperTrm.exe), I want it to open immediately, and not show me ...
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Unable to connect my projector via USB-to-RS232
I have to connect a Mitsubishi projector XL6600U via a USB-to-RS232 connector. I have a Prolific PL2303 cable, the drivers are available here: http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&...
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How to create direct RS232 (PPP) connection from Windows 7
I'm trying to create a direct connection to a hardware device via RS232 serial connection. Am using a USB to Serial adapter and works fine in WinXP but the option seems to have disappeared in Win7. ...
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Setup null modem connection with a phone like cable
I have a device that I want to connect with, reading the user's manual it claims that I can connect to the device via SR-232 interface and it list all the steps to configure a null modem connection on ...
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interface an lcd through rs232 interface
Linux has character device file representing serial port /dev/ttys*. I can simply open , read , write , close a serial port using system calls in my c program. I am working on a board which has an ...
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rs232 PTZ cameras software program for control
Does anyone know of a program that would allow you to control multiple IR cameras via usb (computer jack) to rs232 (camera hardware)? We have a cameraswitcher, very low key, that I can press buttons ...
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pyserial RS232 to Ethernet converter? will work?
If I use an RS232 to Ethernet converter like this and connect it to the lan network by transmitting data from a printer or any other serial device, is it possible that I can read the serial ...
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Why isn't there any terminal program using USB?
I often use HyperTerminal in Windows XP. The problem is that it just supports COM and telnet. I know COM Port is very old-fashioned, but I can't replace it with USB because there is no such program ...