Electrical wiring is basically or mainly two categories Ac or Dc Electrical control wiring. all the maximum connection will be the same in both categories either ac or dc.
Be careful Never connect + positive and - negative terminal directly or without any specific load it may be short circuit and death injury.
Never go to directly high currents and high voltages wiring. First Understand and get user experience with somewhere. If not get experience in somewhere don't worry I will explain how to get experience in your home. first, you work 5v to 12v dc connection with low-cost hardware and ic to understands and increase basic experience how its works and how currents and voltages work in these devices..
Read Instructions Carefully.
Read Instructions Carefully and connect Any hardware to power then connect (+ )Postive terminal to Positive(+), and (-)Negative terminal to the Negative(-) with the required input voltage and current check using a multimeter and Ac/Dc voltage tester. In dc control GND is the negative terminal and VCC is the positive terminal If you don't damage your hardware please use a diode to protect reverse voltage in dc connection.
STANDARD DC ELECTICAL CONTROL DEVICES DESIGN
In any industry, in the world, all control dc devices design with standard dc voltages and currents.it starts with 5v,12v,24v, dc. So if understand any these of connection then you control all types of dc devices using instruction manual of the device.
ELECTICAL WIRING PRECAUTIONS .
1.Before any installation and connection must-read manual and instruction of the device carefully.
2.Use Electrical Testing Equipments like Tester, multimeter and clamp meter etc.
3.Electrical connection should be clean and tight, never loose the connection, therefore, sparks the connection point .yawot.com