What does the circle and stick on the switch mean?

Changing the icon

To ensure that the shortcut is recognizable and visually matches the action being performed, it would be wise to change its icon. The latter can be selected in the appropriate system folder or created manually.

To change the icon as standard, you need to:

Right-click on the created shortcut and find “Properties” among the context menu items.
Go to the “Shortcut” tab and click the change icon button.
Select the one you like among the proposed icons and click OK.

You can create an icon for the shortcut yourself by drawing a picture or editing the image you like in the Paint application. For those who do not know how to draw, the second option is preferable:

Open the graphic editor, click on the “File” button and open the selected image.
On the Resize and Skew tab, set the aspect ratio to 16x16, 32x32, 64x64, or 128x128 (in pixels).
Save the result as an image in BMP format by clicking on the save button in the top panel.
Right-click on the created file and change its extension from .bmp to .ico.

In addition, you can download your favorite icons from the Internet. Absolutely any image with the .ico extension will do - from a road sign to an image of a tropical forest. There are also special utilities that contain ready-made icon packs and change the design of folders at the user’s request, but most of them are paid or have very limited functionality.

Conventional functional symbols on equipment of all types

Reading alphanumeric designations of electrical circuit elements

On all types of circuits, any element - a resistor, contactor coil, measuring device, etc., has an alphanumeric designation.

This designation consists of one or two letters and numbers. The letter(s) denotes-

They indicate the code of this element, and the numbers (digits) indicate the serial number of this element in this scheme.

For example, the alphanumeric designation KT2 means the following: KT - time relay, 2 - second in order in this circuit.

In the case of depicting on the diagram the components of electrical circuit elements

After the main digital designation, an additional one is placed through a dot, indicating

general serial number of this component.

In this case, deciphering the designations of numbers and letters is performed in the reverse order, i.e. alphabetic characters and numbers are read from right to left.

For example, the alphanumeric designation KM5.4 means the following: KM – electromagnetic contactor coil, the serial number of the contactor in the circuit is 5, the serial number of the contactor contact in the circuit is 4.

This designation is read as follows: the fourth contact of the fifth electrical

magnetic contactor.

Rice. 1. Plus, positive polarity . To identify positive polarity connectors connecting a DC power source

Rice. 2. Minus, negative polarity . To designate negative connectors

significant polarity connecting the DC source

Rice. 3. Direct current. To designate connectors connecting the device -

ru to a direct current source, as well as to indicate that the equipment operates only on direct current

Rice. 4. Alternating current. To designate the connectors connecting the device

ru to the alternating current source, and also to indicate that the equipment operates on alternating current only

Rice. 5. AC to DC converter. To denote pre-

AC to DC transformer and corresponding connectors

Rice. 6. DC to AC converter. To denote pre-

DC to AC generator and corresponding connectors

Rice. 7. Body, chassis. To identify connectors connected to the chassis or chassis

Rice. 8. Grounding, ground. To identify ground connectors

Rice. 9. Grounding, protective . To designate grounding connectors, I create

providing protection against electric shock

Rice. 10. Device of protection class II . To designate equipment, the corresponding

meeting the safety requirements specified for class II equipment (protective

You )

Rice. 11. Fuse. To identify fuse boxes and indicate their location

Rice. 12. Signal lamp. To designate a switch with which

turn the warning light on and off

Rice. 13. Lighting lamp, backlight . To designate switches, controls

shining a light source

Rice. 14. Included. To indicate the switching on of the network, power switches or their position corresponding to the switching on of the network

Rice. 15. Off. To indicate turning off the network, network switches or their position corresponding to turning off the network

Rice. 16. On/Off, push-button switch with two fixed

bathroom provisions . To indicate a switch that turns on or off

network. Each switch position is fixed.

Rice. 17. Ready to turn on, standby mode . To indicate switch-

body (or its position), with the help of which part of the equipment is brought into

“Ready to turn on”. On ships, the standby mode is called “stand-by.”

Rice. 18. Foot switch, pedal . To designate connectors to which

eye connects foot switch

Rice. 19. Program channel switch . To designate switches that control channel selection, program

Rice. 20. Start, launch, activation. To designate start, start, actuation switches

Rice. 21. Quick start. To designate a switch or control element

ment by which the operating speed (normal mode) is achieved without signi-

expected delay

Rice. 22. Stop, block. To denote a switch by means of which movement, for example, the movement of a tape, is stopped

Rice. 23. Quick stop, stop . To designate the control elements with the help of which the process, programs, or belt progress is stopped without significant delay

Rice. 24. Pause, break . To designate a switch whose action is re-

the movement (e.g. of a belt) is interrupted by the braking system and shutdown

Rice. 25. Effect or action in the direction of the starting point, normal mode . To indicate effect or action switches in the direction of action

real or imaginary starting point, sign, mark, for example, simultaneous reduction of several equipment parameters to pre-selected values

Rice. 26. Automatic control . To designate the switch (or its position) by which the equipment is brought into automatic control mode

Rice. 27. Manual control . To designate the switch (or its position) by which the equipment is put into manual control mode

Rice. 28. Remote control . To indicate a switch (or its position

Rice. 29. Regulation. To designate an element to be regulated, setting the corresponding value of the quantity. The value of the quantity increases with the height of the figure

Rice. 30. Adjusting high sound frequencies . To indicate adjustable

main elements of high sound frequencies

Rice. 31. Regulation of low sound frequencies . To indicate adjustable

main elements of low sound frequencies

Rice. 32. Music. To indicate the "music" position of the "speech/music" switch

Rice. 33. Sound. To designate switches, controls and connectors related to audio information

Rice. 34. Balance. To indicate stereo channel balance adjustment

Rice. 35. Synchronization. To designate connectors, switches and controls

synchronizing elements designed to control equipment operating synchronously

but, for example, connecting a film projector synchronizer

Rice. 36. Filter (pass) high frequencies . To designate a high-quality filter

high frequencies, as well as associated switches and control elements

Rice. 37. Filter (pass) of low frequencies . To identify a low-pass filter and its associated switches and controls

Rice. 38. Band-stop filter, notch . To indicate stripes

barrier filter, as well as associated switches and control elements

Rice. 39. Mid-pass filter, bandpass . To designate a bandpass filter

ra, as well as associated switches and control elements

Rice. 40. Tuner, radio receiver . To designate connectors, switches and control elements of a radio receiver, tuner

Rice. 41 . Entrance. To designate input connectors when a distinction between inputs and outputs is needed

Rice. 42. Exit. To designate output connectors when necessary

between inputs and outputs

Rice. 43. Loudness compensation. To designate switches and control elements

cops that allow you to compensate for the physiological hearing curve

Rice. 44. Amplifier. To designate connectors, switches and adjusters

main elements of the amplifier. To designate an amplifier enclosed in a protective housing

Rice. 45. Clock, time relay . To designate switches and control elements in clocks, time relays, timers

Rice. 46. Monophonic, mono . To indicate monaural playback

recording (recording) sound. To indicate the "mono" position on the "mono/

stereo". Also used on record labels

Rice. 47. Stereophonic . To indicate stereophonic playback (recording) of sound. To indicate the "stereo" position on mono/stereo switches. Also used on record labels

Rice. 48. Tape recorder. To designate connectors, switches and adjustments

ing elements intended for a tape recorder

Rice. 49. Stereo tape recorder . To designate connectors, re-

switches and control elements intended for stereo magnetic

backgrounds

Rice. 50. Headphones . To designate connectors, switches and control elements intended for headphones

Rice. 51. Stereo headphones . To designate connectors, switches and control elements intended for stereo headphone

ical phones

Rice. 52. Headphones with a microphone. To designate connectors, transfer

switches and control elements intended for headphones with a microphone

Olfon

Rice. 53. Microphone . To designate connectors, switches and adjusters

building elements intended for microphones

Rice. 54. Stereo microphone . To designate connectors, switches

drivers and control elements designed for stereo microphones

Rice. 55. Earphone. To designate connectors, switches and adjusters

main elements intended for the earphone

Rice. 56. Loudspeaker. To identify connectors, switches and control elements intended for a loudspeaker

Rice. 57. Recording (registration) on a storage medium . To denote re

switch its position in which the equipment is turned on for recording

Rice. 58. Playing a recording from a storage medium. To denote re-

switch or its position in which the equipment is turned on for playback from a storage medium

Rice. 59. Erasing a recording from a storage medium . To indicate switch

la or its position in which information recorded on the media is erased

Rice. 60. Control of input data during recording or registration on the wearable

body of information. To designate a control element by which input data is controlled during recording or recording

Rice. 61. Control of input data after recording or registering them on a device

body of information. To designate a regulatory element by means of which control of input data is carried out after recording or registering them

Rice. 62. Control of input data during playback. To denote

the value of the regulatory element by means of which the input is controlled

data during playback

Rice. 63. Write blocking . To designate the control element, I block

circuit designed to prevent accidental playback of a recording.

Rice. 64. Marker (marker) . To designate a control element, using

whose mark (for example, signal, perforation, special code) can be reserved

registered on storage media

Rice. 65. Media cutoff. To designate the control element of the system from -

cutting, for example, in devices for copying and mounting paper, magnetic, perforated

roved tape

Rice. 66. Direct and alternating current . To designate connectors, connect

connecting equipment to a source of direct or alternating current, as well as to indicate

understanding that the equipment operates on direct and alternating current

Rice. 67. Quartz. To designate controls for quartz resonators

Rice. 68. On/off, push-button switch with one fixed

bathroom position . To designate a switch that turns on or off

go network. Off position is fixed, "On" position carried out only when the switch is pressed

Rice. 69. Call. To indicate the switch that controls the bell

Rice. 70. Horn. To indicate the switch that controls beeps, sound

with alarms

Rice. 71. Fan . To indicate the switch that controls the fan

rum

Rice. 72. Silent grounding . To indicate grounding connectors, both

ensuring minimal equipment noise from grounding

Rice. 73 . Equipotentiality . To designate connections intended to bring several pieces of equipment to a single potential

Rice. 74. Rectifier (without specifying type). To identify connectors and control elements associated with rectifier devices

Rice. 75. Transformer . To designate connectors, switches and adjustments

lyrating elements designed to control power transformers

Rice. 76. Movement in one direction . To designate the regulating element

ment, as a result of which the object moves in the specified direction

Rice. 77. Movement in two directions . To designate the regulating element

ment, as a result of which the object moves in two specified directions

Rice. 78. Movement restricted in two directions . To designate elements

one, as a result of which the object moves in two directions in a certain

within limits

Rice. 79. Action from the starting point . To designate the regulating element,

through which an object (effect) moves from the original (real or imaginary) point

Rice. 80. Action towards the starting point. To indicate regulation

element through which the object (effect) moves to the original (real or imaginary) point

Rice. 81 . Action in two directions from the starting point. To denote regu

lyrating element through which the object (effect) moves from the original (real or imaginary) point

Rice. 82. Sequential action from the starting point and back . To denote

of the regulating element through which subsequent movement occurs

transfer of an object (effect) from a starting point (real or imaginary) and back

Rice. 83. Simultaneous action from the starting point and back . To denote

tion of the regulatory element, through which simultaneous change occurs

moving an object (effect) from the starting point and back

Rice. 84. Setting the minimum . To designate the regulating element, in the middle

which sets the minimum value of a quantity, for example, the balance of a bridge circuit, the minimum deviation of a measuring device, indicator, etc.

Rice. 85. Setting the maximum. To designate a regulating element,

by means of which the maximum value of a quantity is set, for example,

construction, maximum deviation of the measuring device, indicator, etc.

Rice. 86. Notch resonant filter (wave trap). To indicate

values of the regulating element that controls the notch resonant filter

Rice. 87. Band-stop filter with variable stop band

(bandwidth). To designate a regulatory element that controls

Variable bandpass filter

Rice. 88. Bandpass filter with variable average frequency. To designate the control element that controls a variable center frequency bandpass filter

Rice. 89. Bandpass filter with variable bandwidth (selective control). To designate the control element that controls a variable-bandpass filter