The following are some basic facts about input loop power sources: The input module usually isn't a loop power source. Although 120V is common for digital loops, other voltages are also used. There ...

Here's why I'm asking: I have a Denon AVR 3803 receiver. I like it quite a bit, except for one glaring (IMHO) omission; in order to use my Sennheiser wireless headphones, I have to run both analog and ...

Serial Peripheral Interface (SPI) output driver chips are popular with embedded designers because they provide multiple outputs without using any CPU I/O pins. This article explains how to adapt a ...

The MAXREFDES36# is an IO-Link 16-channel digital input hub that fits on a small 53.75mm x 72mm printed circuit board (PCB). Maxim Integrated and Technologie Management Gruppe Technologie und ...

Offering support for hi-res PCM, DSD, 7 digital inputs, and future upgradability, the McIntosh MDA200 D/A Converter warrants a serious look. 7 digital inputs and upgradability might not seem all that ...

An option for all models of Spectrum Instrumentation’s M4i-44xx series of 14/16-bit PCIe digitizer cards furnishes eight additional digital input lines. Sitting beside the digitizer, the ...

Programmable logic controller IO module. How hard is it to keep track of a binary electronic system? It can only be in one of two states: on or off, open or closed, 0 or 1. While that may be correct, ...

A hardware interface that accepts only digital signals. Contrast with analog input. For various examples, see plugs and sockets. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction ...

In our previous issue, we noted that the first step in troubleshooting digital input modules is to verify the power source of each loop. If input power is missing, the causes can be such things as ...