Analog cameras are used in enterprises for video surveillance of objects. Modern models are made with sensitive lenses. Most cameras are made with high conductivity. By resolution, the devices are quite different. Also, the main parameters of the cameras should include the viewing angle and focal length. Additionally, the frequency of the device is taken into account. In order to understand in detail the analog type cameras, it is recommended to consider the standard modification scheme.
Camera layout
The standard circuit of an analog camera involves the use of a contact lens, module and control unit. Lenses apply low and high sensitivity. Video outputs are set in different series. Thyristors for models are suitable with a frequency of 400 MHz. It is also important to note that adapters for cameras are installed with regulators.
Model Types
There are various types of analog cameras. According to the type of installation, the models are divided into internal and external modifications. The first option is most suitable for office facilities. They use low conductivity matrices. Moreover, the viewing angle does not exceed 12 degrees. If we look at external cameras, they have a wide lens. Most devices use a wired module. The maximum viewing angle for models is 160 degrees. By design, rotary and projector modifications are distinguished.
Internal cameras
Internal analog CCTV cameras are manufactured with stands for installation. Modern models stand out for their high resolution, they use a wired modulator. The focal length of devices starts at 3.5 meters.
How to connect an internal analog camera? Some models are installed directly through a linear conductor. Extenders for modifications are selected in a positive direction.
The sensitivity parameter of the internal cameras is approximately 5.5 mV. Most devices are made with PP video output. It should also be noted that there are modifications with transition modulators. The operating frequency of the internal cameras is about 450 MHz. Most models are made with a protection system. It should also be noted that the devices differ in noise level. In some cases, cameras are connected via channel adapters.
External cameras
External cameras stand out with a wide viewing angle. They use better protection systems. Such modifications are often installed at the entrance of office facilities. Also, models are often used in front of stores. Their viewing angle, as a rule, does not exceed 230 degrees. Some models are made with a contact adapter on the video output. The resolution setting in cameras is different. Most models are powered by a modulator. It is also important to note that there are cameras with multi-channel adapters. The operating frequency parameter in the devices reaches a maximum of 450 MHz. Lenses are used in different classes. The diaphragms are installed with the P40 series.
When choosing a modification, it is important to pay attention to the device modes. For night shooting you will need a special filter. It should also be noted that there are models with high photosensitivity. Wireless cameras are connected via a linear adapter. Comparators for devices are matched to a low directional network. If we consider a simple model with a short stand, then it is fixed through one module. Modern models are produced with speaker output. Thyristors are used to connect them. These items are sold with and without a rectifier. It is also worth noting that there are modifications on wired controllers that are closed on the module. To connect such a modification, a special contactor is installed. In this case, the camera is connected to the computer. To configure the equipment, go to the device menu. In this case, much depends on the operating system.
PTZ cameras
PTZ analog surveillance cameras include a multi-channel sensor and a conventional lens. The module is used with a thyristor. Connecting an analog camera occurs most often through a switch. If we consider the standard model, then it has a resolution of 780 per 500 pixels. Some devices are made with support for the CP format.
It should also be noted that the models have special movable racks. Drives are used only controller type. Some cameras stand out with low resistance. Rectifiers for them are selected on two outputs. To install the modification, you need a contact expander, which closes on the power supply. To configure the camera using a regular personal computer.
Scheme of connecting designed cameras
Designed analog cameras can be connected via a dipole modulator. The controller is used with one adapter. Experts say that the filter is used with a contactor.
If we consider wired modifications, they have a PP output. In this case, the adapter is used with an expander. It is also important to note that some models are connected only through a contactor to three outputs. In this case, the equipment is set up thanks to a personal computer. The standard model is adjustable through the panel. Considering modifications on modulators, it is worth noting that they need to install a variable controller. The adapter for these purposes is used on three channels. To close the circuit, a low-resistance extender is suitable.
Best analog type camera
ActiveCam AC-TA461IR2 is the best analog camera, which has recently been in great demand. She has a high-quality lens that allows you to shoot video in high resolution. The matrix of the model does not consume much electricity. In addition to the advantages of the device, it is worth noting the bad conductivity of the modification. Experts believe that the device is very easy to install. It should also be noted that the model has an excellent body. The filter in this case uses a photosensitive type.
Installation to a computer
Analog cameras are connected via a computer using an adapter. In this case, a lot depends on the panel output. If we consider devices with a PK connector, they use a contactor without an expander. In this case, the camera is connected directly through the contactor. It should also be noted that the modification can be configured using the driver. Some devices are made with PE output. The standard expander is not suitable for them. It is more expedient to select an adapter with a transceiver. Most professionals use only wired modifications. If you install multiple cameras, then this receiver is used. Modern devices are produced on two outputs.
Connection via laptop
Through the laptop, you can connect various types of analog cameras. If we consider projector devices, a transceiver is used for them. Rectifiers are installed with and without filters. It should also be noted that cameras are mounted through modules. Speaking about channel modifications, it is worth noting that they use KE connectors. All this suggests that the standard module for connecting is not suitable.
In this case, only modifications with a dipole adapter can be used. In this case, the rectifier is installed with a wave switch. To configure the camera, you will have to go to the control panel. Further, it is important to discover a new device; for this, a scan function is provided. After that, it remains only to update the modification driver.
Using a 10 V unit
10 V power supplies are only suitable for external cameras. To connect the modification, contact modulators are used. In this case, the controllers are installed with adapters of different conductivity. Modern devices are made with the release of the Republic of Kazakhstan. They have a standard trim.
It should also be noted that there are devices with a variable adapter. Cameras for such models are suitable only for the designed type. The rectifier itself is used low impedance type. Experts say that the thyristor is selected with a filament adapter. First of all, an expander is connected to the circuit. After that, cameras and a power supply are installed.