ePanorama wiring documents


Cable Impedance

This document tries to clear out some details of transmission lines and cable inductance. This document is only a brief introduction to those topics. If you expect to work much with transmission lines, coaxial or otherwise, then it will be worth your while to get a book on that subject. The ideal book depends on your background in phsics or electrical engineering, and in mathematics.

Coaxial cables

Introduction to coaxial cables, connection information and cable data.

Twisted pair wiring

Introduction and notes on twisted pair wiring as used in telecommunications, networking and and audio/video applications.

Current loops

Current loops are a standard which are used widely in process automation. 20 mA are wirely used for transmitting serial communication data to programmable process controlling devices. Other widely used standard is 4-20mA current loop, which is used for transmitting analogue measurement signals between the sensor and measurement device.

Ground Fault Interrupters

A groundfault circuit interrupter (GFCI) is an electrical device which protects personnel by detecting potentially hazardous ground faults and quickly disconnecting power from the circuit. A potentially dangerous ground fault is any amount of current above the level that may deliver a dangerous shock.

Color code of AC power cords

Desciption of color codes in AC power cords. (US and EU)

Minidin 8 pinout

Minidin 8 pinout

RJ45 pin colors

RJ45 pin colors

Surge AC

Surge AC

Surge Suppressor Specification recommendations

Surge Suppressor Specification recommendations

Effects of current passing through the human body

Effects of current passing through the human body

Wire resistances

Wire resistances