Flashcards in Electrical & Electronics Deck (69)
Printed Circuit Board
A board on which components such as transistors, resistors, and microprocessors can be mounted and contains all the circuitry that electronically manipulates the data that enters and leaves the electronic component.
A PCB specifically designed to provide interfacing between external devices and the component's central processing unit or microprocessor.
Input/Output (I/O) card
Central Processing Unit
The computing part or brains of the electronic component.
The CPUs are contained on a single chip known as ____
The ___ allow systems to be configured to the specific needs of a particular application.
In systems with spare I/O cards, the spare cards can be used to ___
Replace a bad card and restore the system to full operation temporarily
An electronic device that lights up when electricity passes through.
Light Emitting Diode
Often used to indicate the operational status of an electronic component.
An attachment device that allows for the connection of many different types of electrical and electronic components to a common rail and provides for easy addition and replacement of system components. Also used to provide for a common ground.
DIN or Mounting Rail
A fully enclosed component housing.
Packages a PCB into a shockproof module
Allow the packaging of multiple PCBs, providing flexibility in configuration.
Fully enclosed housings
Peripheral Interface Module
An insulating base or slab equipped with terminals for connecting wiring.
A terminal strip is also called a ___
Each terminal strip has at least one ___ under which a wire or component lead may be secured.
Machine screw or other fastener
Terminal blocks come in a variety of types such as ___, ____, or ____
Screw-fastened, Plug-in, or Rail-mounted
Terminal blocks may be numbered to identify ____
Test points that correspond to schematics
Screw-fastened and plug-in terminal blocks are commonly found in ___
Terminal connection boxes
___ are used in locations where it would not be practical to use a terminal block, such as bridge control panels
To insert or remove a wire from a connection point with a clamping spring, ___
Ensure power is secured, then place a small screwdriver directly into the hole located above the connection point.
Many of the connections for a system can be collocated using a ___
Terminal connection box
Allow users to configure devices or change their operation by connecting or breaking circuits to implement different functions
Small piece of plastic and metal that is placed across two circuit ends to make a connection, or removed to break a connection
When power is applied to the device, it detects which circuits have been opened or closed
A cable that connects one device to another device or power source