General
Output voltage	12 V DC
Output current	3,3 A
Input cable	1,25 m
Output cable	95 cm
Connector type	DC hollow pin connector
Plug dimensions	5,5 mm / 2,1 mm
Polarity	Positive pole inside

The NG3300 desktop power supply from Indexa is a stabilised switching power supply designed for powering video cameras and other low-voltage devices in the field of video door monitoring. It delivers a constant DC voltage of 12 V with a maximum output current of 3.3 A. The device is compactly designed and suitable for use on tables or in enclosures where a reliable and interference-free power supply is required. The desktop power supply design allows for flexible placement indoors without requiring additional mounting components.

Applications
This power supply is specifically intended for powering surveillance cameras and similar electronic components in the field of video door monitoring. The specified connector (DC hollow pin, 5.5 mm / 2.1 mm, positive pole inside) is a standard connection used in many surveillance cameras and other devices of this type. It is therefore suitable for applications in apartments, offices, commercial premises, or other indoor spaces where continuous power supply for security technology is required.

Functions and Equipment in Detail
The device features an input section connected to the public power grid via a 1.25 m long power cable with a device coupling. The output side is equipped with a 95 cm long cable ending in a DC hollow pin (diameter 5.5 mm, inner diameter 2.1 mm, positive pole inside) at one end. This configuration enables a simple and secure connection to compatible devices. The stabilisation of the output voltage ensures that connected devices are supplied with a constant voltage regardless of fluctuations in the mains power.

Technology Explained Simply
As a switching power supply, the NG3300 operates with an electronic switching regulation, enabling high efficiency and low heat generation. The stabilisation of the output voltage at 12 V DC ensures that sensitive electronics such as video cameras are not damaged by voltage fluctuations. The output current of 3.3 A is sufficient to power individual cameras or small systems with low power consumption. The device is designed for indoor operation and requires no additional cooling or protective measures.

Compatibility and Accessories
The power supply is equipped with a standard DC hollow pin, commonly used in many surveillance cameras and other video monitoring systems. It is therefore compatible with devices that support this connector type.

Mounting and Installation
Installation is carried out by directly connecting the power cable to a socket and the output cable to the device to be powered. The desktop power supply is not designed for wall mounting but for placement on a flat surface. It does not require any additional mounting kit or fastening materials. The cables are pre-assembled, so no additional connections or tools are needed.

Advantages in Operation
The stabilisation of the output voltage protects connected devices from voltage fluctuations. The compact design and pre-assembled cables simplify installation and reduce the number of required connections. The device is designed for continuous operation and is suitable for applications requiring a reliable power supply over extended periods. The use of a switching power supply ensures efficient energy conversion and minimises heat generation within the device.