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.

learn more… | top users | synonyms

1
vote
2answers
63 views

How to communicate with two PC using RS232

I was just wondering that is this possible to communicate with two computers using RS232 using softwares like docklight and putty. Suppose if i send Hi from on pc will it recive in another PC and ...
1
vote
0answers
19 views

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 blackbox RS-232 to Ethernet converter. I've followed this example. I've configured ser2net.conf ...
0
votes
1answer
17 views

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 ...
1
vote
1answer
40 views

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 ...
0
votes
0answers
68 views

Windows Service unable to detect COM port

We have a windows service (written in C#) that uses a 3rd party DLL to communicate with a COM printer. Already tested the windows service in 4 local machines, and in every case the printer works ...
0
votes
0answers
21 views

Xubuntu: rs232 dropping data

I got a problem that googling did not solve. We have a computer that we use to "forward" rs232 connections. We had Windows 7 running on it and used the Windows Remote Desktop to forward a Putty ...
2
votes
1answer
285 views

RS232 serial Y splitter to Raspberry Pi (USB) and thermal printer sometimes blocks flow to printer

We are sniffing data from a restaurant point of sale system (RJ45 to DB9) to its thermal printer by using an RS232 splitter and a Raspberry Pi (DB9 to USB on the Pi). This has worked great 99% of the ...
1
vote
1answer
36 views

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 ...
0
votes
0answers
84 views

How to connect 2 computers using Hyperterminal?

How can i send text from one computer to another using Hyperterminal? They both have Windows XP, they are connected with a RS-232 null modem cable. Is it possible? If yes what settings should i use
0
votes
0answers
126 views

RS232-> convert to usb format and store to jump drive or other usb connected memory

I work with older (pre1997) machine tools. They use a RS232 port to transfer data to and from the machine. I would like to convert these serial signals into a USB format and store them on a jump ...
0
votes
0answers
198 views

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 ...
0
votes
0answers
179 views

Mac OS X hyper terminal client with log contents adding timestamp

Is there any hyper terminal client in OS X can save the log with timestamp at each line of the log? Just like PC's hyper terminal tool TeraTerm, there is an timestamp option while configuring the log ...
0
votes
1answer
324 views

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 ...
-2
votes
2answers
299 views

RS232 Splitter For PC [closed]

I have two XP machines (I know), one is an industrial XP Embedded Beckhoff CX unit, the other is a run of the mill i3 PC. Both have serial ports and both have separate Symbol hand scanners. Does a ...
-1
votes
1answer
373 views

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 ...
0
votes
0answers
514 views

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 ...
1
vote
1answer
348 views

Telnet rs232 using scpi :s:gui:c

I have some problems in using SCPI:S:GUI:C language, because I'm just a programmer but I need to deal with some devices connecting with RS232 in Flash. I have this machine which connects to the pc ...
1
vote
1answer
154 views

Can COM ports be used as RS232 serial ports?

Appologies if I am misusing/abusing specifications. Question: Is it possible to send serial signals via the PC's COM port? Is it further possible to split this port somehow and send signals to two ...
0
votes
1answer
26 views

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 ...
1
vote
1answer
348 views

Connect a VFD display RS232 serial port

I need to connect a VSF display to a computer. The VSF datasheet has this pin out specifications (http://www.noritake-itron.com/Specs/CUK/CU2x20029SCPB-KV91B-04.pdf) DIN-Receive EIN-Host Busy ...
3
votes
3answers
518 views

Connect 2 computers with RS232 to USB cable

So I have a very, very old DOS machine with an RS232 port on it and I want to be able to transfer files to it from a Windows 7 machine. For this i bought an RS232 to USB cable. What sort of software ...
0
votes
0answers
645 views

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: ...
0
votes
3answers
4k views

Barcode scanner with RS232 interface not working with USB adapter

I used RS232 interface of barcode scanner (Datalogic QD2100), for my project but a problem arises. The manual given with this barcode scanner has certain barcodes for mode setting (scan mode-flashing, ...
1
vote
3answers
1k views

RS232 / Ethernet Port Servers - Protocols Involved?

Firstly, I'm not responsible for the equipment, so don't panic that I'm asking such basic questions :) At work we have multiple RS232 / Ethernet port servers (Say the 16 port version of this ...
1
vote
2answers
3k views

Is DB-25 port Serial or Parallel?

I would like to know whether the DB-25 port is a serial or parallel port. These ports are otherwise known as printer ports, aka LPT port. I'm very confused about this since, according to Wikipedia, ...
0
votes
1answer
118 views

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 ...
5
votes
1answer
5k views

USB-to-Serial showing gibberish at 115200 Baud

I've got a serious problem which drives me crazy because I tried everything I could think of. First of all, I made a video: http://youtu.be/boghkuq7L_s but please read the following text for more ...
1
vote
3answers
4k views

What is the minimum delay between two consecutive RS232 frames?

I have been working on creating a UART on an FPGA. I can successfully transmit and receive single characters typed on PuTTY. However, when I set my FPGA to constantly write a large sequences of "A", ...
0
votes
1answer
7k views

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. ...
0
votes
1answer
162 views

I need to monitor a physical RS232 port on an appliance?

I need to verify what's being output on an RS232 port of an appliance that's running proprietary software (e.g. NOT Windows or Linux). The port is sending data to a target app on another appliance, ...
2
votes
1answer
3k views

COM ports not working on Windows XP

I am trying to configure a GSM modem on a Windows XP box. It communicates over the COM ports. The device shows no change in status whether it is plugged in to the computer or not (though I am not ...
0
votes
1answer
406 views

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 ...
0
votes
1answer
987 views

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 ...
1
vote
1answer
2k views

Can't communicate using PuTTY, but can with Termite

I'm trying to establish a serial connection to a peripheral from my PC's RS-232 port. Pretty simple stuff, and I've had not trouble doing it with countless peripherals before. And yet when I configure ...
0
votes
1answer
511 views

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 ...
1
vote
2answers
2k views

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 ...
0
votes
1answer
688 views

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 ...
2
votes
1answer
275 views

Is there a software that allows RS232 sniffing and TCP/UDP listening [closed]

I am looking for a software that would fulfill the following requirements: Able to "sniff" communication over RS232 (like PortMon and Advanced Serial Data Logger) Able to listen to a given ...
2
votes
1answer
1k views

interpreting stty output to start connection with hyperterminal

I am trying to communicate between an embedded device which runs linux and a PC which runs windows xp over a RS232 connection. On windows I use Hyperterminal, but I don't know which settings I should ...
0
votes
2answers
300 views

Novell Netware rs232 to lan

I'm trying to replace an old computer which is boot from a floppy disk with novell netware 3.12 with a modern computer. This computer has a serial com port and an Ethernet card, and all is does is to ...
1
vote
2answers
824 views

Do I fry my device when attaching a 5V RS232 converter to a 3.3V port?

I have a device, namely a Synology DiskStation. It has a 3.3V RS232 interface on board. All I have is a 5V RS232 to USB adapter. Can I attach it to my DiskStation without making any smoke?
4
votes
7answers
15k views

connect two computers together via a rs232 serial port

Wondering if anyone knows of a solution to connect with telnet/ssh through a rs232 serial port Edit: I am looking for a way to connect to computers together via a serial port. I want to be able to ...
2
votes
2answers
2k views

I'm looking for serial port monitoring software [closed]

I need a serial port monitoring software that works on windows 7 64bit or GNU/Linux and supports at least RS-232. Bonus points are if it's free software or at least freeware. I just need to be able to ...
3
votes
1answer
140 views

Can I set up a COM Port that Connects via TCP/IP?

I have an RS232 device connected to a Digi PortServer on my network. I can telnet to the Digi's IP and port number to communicate with that RS232 device. I have a Windows application that knows how ...
1
vote
1answer
590 views

Turning on computer using communication port

I am working on something that would require a computer to be turned on "remotely" but still within reach in the same building. I did some reading about WOL (Wake On LAN) and would like to know if ...
3
votes
4answers
285 views

Looking for Fast RS-232 or RS-485 Interface Cards for Windows [closed]

I have a module that is usually bundled with a master module, which we now want to use unbundled. The module uses an RS-485 interface. The problem is, by default, the module runs at 1.25 Megabaud, ...
1
vote
0answers
1k views

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 ...
0
votes
2answers
430 views

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?
1
vote
2answers
860 views

Serial port RS-232 and Security

If I have a device connected to serial port RS-232 on my computer and an application that is communicating with it. How secure is this? Can another application communicate with the device at the same ...
0
votes
1answer
526 views

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 ...