networking cable used for serial communication
Wikipedia
en.wikipedia.org › wiki › Serial_cable
Serial cable - Wikipedia
March 20, 2026 - A serial cable or RS-232 cable is a cable used to transfer information between two devices using a serial communication protocol. The form of connectors depends on the particular serial port used. A cable wired for connecting two DTEs directly is known as a null modem cable.
GlobalSpec
globalspec.com › learnmore › electrical_electronic_components › wires_cables › serial_cables
Serial Cables Selection Guide: Types, Features, Applications | GlobalSpec
I forgot my password. Don't have an account? Register here. ... Serial cables are used for the serial transmission of data.
What is the use of this cable?
RS-232 Serial port to RJ11 (maybe RJ12). Lots of possible devices such as a 2-line LCD display, scale, barcode scanner, cash drawer, etc. Pretty common in PoS (Point of Sale) systems. More on reddit.com
Types of serial cable configuration - Industrial Networking - Industrial Automation, PLC Programming, scada & Pid Control System
What is the serial cable? A serial cable is a data transfer cable that sends data between two devices using the serial communication protocol. The serial port determines the type of connectors to be utilized. The term “null modem cable” refers to a connection that connects two DTEs directly. More on forumautomation.com
Nowadays what are the uses of serial ports?
They work. They're the 'simplest' form of communication that almost every chip supports. I would bet even your phone has UART pads broken out. More on reddit.com
What cable is usually used on serial ports of cisco routers.
Serial isn’t used much anymore, as the highest bandwidth it’s supports is 45Mbps (DS3). “Frame Relay” was the protocol used by this, but it was historically replaced by ATM (155Mbps OC3), SONET (10Gbps OC-192), and now Ethernet (100Gbps currently). Traditionally these protocols were used because of distance limitations of Ethernet, but now that problem is solved. Most business will simply use an Ethernet connection to attach to the WAN as opposed to a legacy serial connection. More on reddit.com
Videos
09:43
Serial Ports- CompTIA A+ 220-1101 – 1.24 - YouTube
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What is a Serial Cable for? - YouTube
Ethernet vs Serial Cable
Serial cables - CompTIA A+ 220-1201 – 2.24
06:23
Serial Ports - YouTube
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Serial Ports Are STILL Around! - YouTube
Cable Builders, Inc.
cablebuilders.com › serialcabletutorial.aspx
Serial Cable Tutorial
A serial cable is a cable that can be used to transfer information between two devices using serial communication, often using the RS-232 standard. Serial cables may use D-subminiature connectors, but other connectors are used.
Wikipedia
en.wikipedia.org › wiki › Serial_port
Serial port - Wikipedia
May 1, 2026 - Before large-scale integration (LSI) made UARTs common, serial ports were commonly used in mainframes and minicomputers, which would have multiple small-scale integrated circuits to implement shift registers, logic gates, counters, and all the other logic needed. As PCs evolved, serial ports were included in the Super I/O chip and then in the chipset. An IBM PC serial card with a 25-pin connector (obsolete 8-bit ISA card) ... A four-port serial (RS-232) PCI Express ×1 expansion card with an octopus cable that breaks the card's DC-37 connector into four standard DE-9 connectors
O'Reilly
oreilly.com › library › view › pc-hardware-in › 059600513X › ch22s03s01.html
22.3.1. Common Serial Cable Types - PC Hardware in a Nutshell, 3rd Edition [Book]
July 24, 2003 - Straight-through serial cables are used to connect unlike devices (DTE to DCE). A straight-through cable is just what it sounds like—each pin on one connector connects to the corresponding pin on the other. On a DB25-to-DB25 or DB9-to-DB9 cable, this means that each pin on one connector connects to the same pin number on the other. On a DB9-to-DB25 cable, the wires connect different pin numbers, but the same signal. For ...
Authors Robert Bruce ThompsonBarbara Fritchman Thompson
Published 2003
Pages 874
Eaton
tripplite.eaton.com › products › rs-232-serial-to-usb-adapters
RS232 Cable and Connectors Explained - Tripp Lite - Eaton
These "straight through" serial cables connect pins on the sending device to the same pins on the receiving device (e.g. pin 1 to pin 1, pin 2 to pin 2 and so on). Serial cables can also be used to connect two DTEs together but the pins must ...
TALtech
taltech.com › support › serial_intro
RS232 and Serial Communications – TAL Technologies
The serial port on your PC is a full-duplex device meaning that it can send and receive data at the same time. In order to be able to do this, it uses separate lines for transmitting and receiving data. Some types of serial devices support only one-way communications and therefore use only two wires in the cable – the transmit line and the signal ground.
Virtual COM Port Driver
virtual-serial-port.org › virtual serial port driver › articles › what is serial port › rs232 pinout
All you have to learn about serial connector pinouts
October 3, 2024 - By continuing to use this site, you agree to our cookie policy. Click here to learn more. OK ... Explore the fundamentals of the RS232 protocol, a classic serial communication standard for connecting computers to peripheral devices like modems. This article covers key topics such as the meaning behind RS232, how data is transferred between DTE and DCE devices, serial connectors, COM port pinouts, RS232 cables, and the differences between null modem and straight-through cables.
Lenovo
lenovo.com › home
Serial port: What is a Serial Port in computers? | How do I connect a device to a Serial Port of a computer? | Lenovo US
If the device requires specific serial port settings, such as baud rate or parity, these settings will need to be configured as well. Serial ports are commonly used for communication with devices such as modems, printers, barcode scanners, and medical equipment.
Reddit
reddit.com › r/computers › what is the use of this cable?
r/computers on Reddit: What is the use of this cable?
July 1, 2024 -
i found it in an old drawer and don't know what the cable is for
Columbia University
columbia.edu › kermit › cable.html
Serial Port and Modem Cables
The serial port on your computer can be used in one of two ways: To connect a computer, terminal, or other Data Terminal Equipment (DTE) to a modem or other Data Communications Equipment (DCE). To connect one DTE directly to another, for example a PC to another computer or to some sort of device.
Firewall.cx
firewall.cx › networking › network-cabling › network-serial-cable.html
Serial Direct Cable Connection, DB9, DB25, COM Ports and Pinouts
Each colored block that is numbered ... to block 7. This is a pretty good representation of data flow in a serial cable. Serial ports transmit data sequentially over one pair of wires (the rest of the wires are used to control the transfer)....
Reddit
reddit.com › r/hardware › nowadays what are the uses of serial ports?
r/hardware on Reddit: Nowadays what are the uses of serial ports?
July 26, 2018 -
Just wondering considering my motherboard has a header for one.
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They work. They're the 'simplest' form of communication that almost every chip supports. I would bet even your phone has UART pads broken out.
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They are still widely used to interface with industrial hardware. Basic serial is far more common than USB on microcontrollers.
RealPars
realpars.com › blog › rs232
What Is RS232 and What Is It Used For? - RealPars
Manufacturers may use RS232 to connect PLCs to devices like HMIs, input and output modules, and motor drives, just to name a few. Keep in mind that RS232 is simply a form of serial communications, or a way to transmit data. A standard DB9 cable is probably the most used cable for this application.
Published 1 month ago