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Computer Cable Designs
Computer Cables#'s - C        D - K        L - Q        R        S - T        U - Z

Last Updated on: Wednesday, October 18, 2017 05:04 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Self-powered Soundcard High fidelity external USB Soundcard / USB Headphones project that can be built for your PC or Mac.  It is based on the latest PCM2706 IC which functions as a high quality, crystal clear 16-BIT Stereo DAC.  It is a single chip digital-to-analog converter that offers two D/A output stereo channels, digital S/PDIF output and requires very few external components.  PCM2706 includes integrated USB 1.0 & USB 2.0 compliant interface controller and it is conveniently powered directly from USB connection.  PCM2706 is a USB plug-and-play device and does not require any driver installation under Windows XP and Mac OSX. __

Send MIDI Signals Over Long Distances 05/12/11  EDN-Design Ideas A single Category 5 cable links MIDI devices up to 100m away.__ Circuit Design by Miguel Ratton, Informus Music Center, Parana, Brazil

Serial Cable for Casio Digital Cameras The "LCD2LPT with Lirc" circuit is the compilation of two circuits found on the net on a single board.  The first is LCD to LPT interface and the second an IR remote control interface using http://www.  lirc.  org program. __ Contact: IQ Technologies

Serial cable for Casio QV-200 digital camera Lose your cable? Build it yourself and save $29.  Fits many QV models __ Designed by Bob Blick

Serial Infrared Remote Controller This is a simple, cheap device that can be connected to any serial port to control most components that have infrared remote controls.  I designed and built it   (on a solderless breadboard) in 1991.  In 1992 I wrote a lengthy description of it for an electronics class.  In 1994 I finally designed a PC board for it, using a free, X-based PC board design program called pcb, and in 1995 I etched several of the boards and made the final product __ Designed by John DuBois

Serial Port A/D Converter This circuit is a simple adapter for PC parallel port to think that there is a printer connected to computer.  This adapter is useful for testing printing speed with different software and as a part of your own designs. 
You can use this circuit to connect your simple circuits to the parallel port __ Designed by Tomi Engdahl

Serial Port tests Digitals 25-Jun-09 EDN-Design Ideas The circuit in Figure 1 uses a MAX232 IC from Maxim to convert RS-232 voltage levels to TTL levels(Reference 1].  A 74HC4051 from Texas Instruments lets you select any of four digital inputs and route them to the serial port(Reference 2].  Listing 1 lets you control the RTS(ready-to-send] and DTR(data-terminal-ready] pins in the serial port that selects the signal under test__ Circuit Design by Yury MagdaEDN Design Idea June 25, 2009

Siemens OP panel programming cable Siemens OP panel programming cable to program OP7, OP17 and other siemens operator panels.  PC must have a serial port to use this cable.  Siemens order number: 6XV14402KH32 __

Simple Circuit Digital Oscilloscope This is a very simple design of digital oscilloscope.  The original project comes from EP 8/2004.  The only difference I've made was adding RS232 to USB converter to use it with my laptop.  Schematic can by found here: analogue and digital.  There can be seen analogue input section with OPA2350 amplifiers and relays as voltage dividers.  ADC is fast television IC, TDA8703.  Digital data goes through DS89C420, via USB to PC application showing results.  It is harder and harder to find RS232 connector in modern computers.  That's why I decided to make this converter.  I doubt there is at least one computer without USB. __

Simple Circuit Efficient All-In-One USB Power Management IC Solution DN1008 Design Notes___ Linear Technology/Analog Devices

Simple Circuit FIFO provides data-width conversion 09/26/02  EDN-Design Ideas Many designs require FIFO elastic buffers to form a bridge between subsystems with different clock rates and access requirements.  However, in some applications, you need FIFO buffers for data conversion.  One example is the case in__ Circuit Design by David Lou, Ghent University, Ghent, Belgium

Simple Circuit Ft245 USB Oscilloscope for the PC If you are thinking about adding a USB interface between your project and a PC, read on.  Implementing USB is now easier than you think.  Eddy Insam will show you how.  The USB (Universal Serial Bus) provides a new way of interfacing low and medium speed peripherals to personal computers.  That old workhorse, the RS232 connector, is fast becoming obsolete, even becoming absent in newly purchased PCs. __

Simple Circuit method tests cables 10/17/02 EDN-Design Ideas MOSFET serves as ultrafast plate driverEngineers have long known how to test a cable for continuity by simply connecting all conductors in series and checking with an ohmmeter.  This method is sometimes impractical, however, because it cannot check for short circuits.  The method shown in Figure 1 solves the short-circuit problem.  Connecting__ Circuit Design by Jim Keith, Bell-Mark Technologies, Dover, PA

Simple Circuit RS232 Level Converter based on a MAX232 including Eagle PCB & schematic files This converter comes as an aid to STK500 board.  It uses the famous MAX232 for the signal level translation.  It requires a 1 to 1 rs232 cable for the connection with the PC. __ AVR Projects Dim

Simple Circuit RS-232 serial port buffer This is a simple serial port buffer circuit I designed for a friend to speed up his SLIP connection in campus computer network "TRINET" of Helsinki University of Technology. The problem in the network was that the RS232 commections from rooms to terminal server were long and made of bad quality wiring. __ Designed by Tomi Engdahl

Simple Circuit Tests Twisted-PaIR Cables 01/19/12 EDN-Design Ideas Quickly test a cable containing twisted-wire pairs and detect open or reversed pairs, shorted pairs, and shorts between unrelated pairs.  Using the system shown in Fig 1, you can quickly test a cable containing twisted-wire pairs and detect open or reversed pairs, shorted pairs, and shorts between unrelated pairs.  The tester consists of an active test set that plugs into one end of the cable, and a passive terminator that plugs into the other end.  (An RS-449 cable is used as an example.)__ Circuit Design by Mark D Braunstein, Contel Information Systems, Fairfax, VA

Sound Card with PCM2702 Make a sound card is no more a complex issue.  If you use great IC PCM2702 from BURR BROWN / Texas Instruments you can create a fully functional USB sound card.  This sound card can be powered from USB port and has one stereo output.  You donít need to install any driver for Windows XP and Vista, because they are already inside.  This is really plug and play. __

ST-bus channel locator eases Debugging 11/06/97 EDN-Design Ideas A simple circuit(Figure 1) can locate one of 32 channels in the serial stream of an ST-bus, which is heLPFul for both debugging and monitoring.  The ST-bus comprises a framing signal for frame alignment, a clock signal.__ Circuit Design by YS Tam, Canadian Marconi Co, Ottawa, ON, Canada

Supercapacitors Charged to 7V from USB Power 04/26/07 EDN-Design Ideas Switching regulator charges three supercapacitors with current limit.__ Circuit Design by Fran Hoffart, Linear Technology, Milpitas, CA

Supply 2A Pulses for GSM Transmission from 500mA USB or PCMCIA Ports DN307) Design Notes___ Linear Technology/Analog Devices

Supply Derives 5 & 3.3V from USB port 20-Dec-01 EDN-Design Ideas The circuit in Figure 1 derives its power from a USB port and produces 5 and 3.3V supply rails for portable devices, such as digital cameras, MP3 players, and PDAs.  The circuit allows the port to maintain communications while, for example, charging a lithium-ion battery.  IC2 boosts the battery voltage, VBATT, to 5V, and IC3 buck-regulates that 5V output down to 3__ Circuit Design by Chad Olson, Maxim Integrated Products, Sunnyvale, CA

Test Twisted-PaIR Cables 01/19/12 EDN-Design Ideas Quickly test a cable containing twisted-wire pairs and detect open or reversed pairs, shorted pairs, and shorts between unrelated pairs.  Using the system shown in Fig 1, you can quickly test a cable containing twisted-wire pairs and detect open or reversed pairs, shorted pairs, and shorts between unrelated pairs.  The tester consists of an active test set that plugs into one end of the cable, and a passive terminator that plugs into the other end.  (An RS-449 cable is used as an example.)__ Circuit Design by Mark D Braunstein, Contel Information Systems, Fairfax, VA

Thermocouple Interfaces to Serial Port 11/09/95 EDN-Design Ideas The circuit in Figure 1 acquires temperature data via an IBM PC serial port using a thermocouple-based sensor.  The sensor is a type-K(chromel-alumel]thermocouple.  When in contact, the dissimilar metals produce a potential difference that is a function of temperature.  Additional thermocouple junctions__ Circuit Design by Daniel Segarra, Sipex Corp Billerica, MA


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