I got the charging head networkZTEA ZXHN K745 high-definition intelligent camera is introduced. This camera is equipped with a PoE adapter with an output specification of 48V 0.3A and a mounting bracket.The camera has infrared light compensation and white light compensation to meet the needs of black and white and color night vision.The camera is 400W pixels, with cloud storage and mobile detection, as well as dust and water resistance and PoE power supply.Here is the disassembly of this camera to see the internal scheme and materials.
The top of the box is printed with ZTE and Hejiaqin brand, product name, appearance, and four major selling points of 4 million pixels, cloud storage, mobile detection, and full-color night market in the upper right corner.
The other four selling points are H265 code printed on the side, dustproof and waterproof, ultra distant night market and POE power supply.
The bottom of the box is printed with the relevant information of the product manufacturer and the packing list.
The package includes camera, POE power supply, mounting bracket, waterproof kit, user manual (including warranty card) and color box sticker (including certificate of conformity).
The attached bracket is made of metal, which has high strength and can withstand the harsh environment for a long time.
List of sealing and waterproof kits for network cable plug.
The POE power supply is designed in a classic style, with a black frosted plastic shell, and the pin end is raised.
The top of the machine body is equipped with a power indicator light, and the edge of the output end is stamped with the words POE and LAN of the corresponding interface, which is convenient for users to use differently.
A close-up of the bottom nameplate. The model is RD4800300-213GB. It supports 100-240V~50/60Hz 0.5A input and 48V0.3A output. It has passed CCC certification. The manufacturer is Ruide Electronic Industry Co., Ltd.
This POE power supply end is configured with two RJ45 interfaces.
ZTEThe high-definition intelligent camera adopts the classic barrel style design, adopts PC fireproof plastic shell, the main body is white, the front end shell is black color contrast, and the body surface is frosted and fingerprint resistant.
The camera model is ZXHN K745, the power specification is 48V0.3A, the production date is July 28, 23, and the manufacturer isZTECommunication Co., Ltd.
Both sides of the fuselage are designed symmetrically.
The other side is also printed with ZTE brand, Hejiaqin and the corresponding logo. The product supports the connection and use of Jiaqin APP.
The front center of the fuselage is equipped with a 4 million high-definition lens, and the periphery is equipped with infrared light, fill light, microphone and photodiode, so that the product has rich functions.
The top of the machine body is provided with a mounting screw hole.
The bottom is also equipped with a bracket mounting base. In addition, the front and rear are also equipped with TF card slots and speakers.
The product supports the installation of TF memory card with a maximum of 256GB. The card slot is equipped with a cover plate for protection and an Rst reset button.
A cover plate which is also fixed with screws is set at the speaker, and holes are opened in the corresponding area to facilitate users to hear the sound clearly.
This camera comes with a two in one connection cable, which is divided into audio cable and equipment network cable.
The audio cable terminal is designed with a cogged plate, which is convenient for users to plug in and out.
Close up of audio cable terminal end.
The equipment network cable terminal is provided with a bulge for fixing and two indicator lights.The red light is always on, indicating that the device is starting, and flashing indicates that the startup is completed, waiting for network configuration or networking failure/the device is restoring factory settings.A flashing green light indicates that the device failed to connect to the Internet or the server, and a constant light indicates that the network has been connected.
The end of the equipment network cable is RJ45 interface.
The measured maximum length of the connecting line is about 48.5cm.
The camera body is about 17.5cm long.
The front end is about 9cm wide.
The height is about 7.6cm.
In addition, the total weight of the product measured is about 375g.
After seeing the unpacking and display of ZTE's network camera, we will take a look at the internal design and materials.
First, unscrew the fixing screws around the camera lens to start disassembly.
Camera built-in speaker and microphone close-up.
The camera PCBA module is connected by wires, and a bag of desiccant is placed inside the shell for moisture absorption to prevent lens condensation.
The PCBA module of the movement is listed, and it is fixed with multiple specifications of screws.
Below the camera core is an LED lighting panel.
Disassemble and remove the lamp and lens, and a microphone is arranged on the shell frame..
Close up of the lighting panel, welding six LEDs.
LED driver adopts Zhongkexin Yida MX9330.
SMD LED is packaged with infrared light and white light.
Photodiode is used to detect ambient light for light compensation control.
Camera board overview, left welding reset button, attack and defense chip, master control chip, memory chip.The right side is welded with PoE power supply circuit, filter capacitor and transformer.Lower welding network isolation transformer.
TF card slot, sensor chip and PoE power supply chip are welded on the other side of the small board.
Two MB10S rectifier bridges are used for input polarity switching.
The input filter capacitance specification is 100 μ F80V.
The POE power supply chip, model AS7800, is a high-precision offline switching power supply chip, which is internally integrated with 200V withstand voltage, 0.5 Ω MOS tube and 12W output power.The AS7800 adopts primary side feedback. The constant current value and output power are set externally. The built-in constant current control and peak current control have power on soft start function and overvoltage and undervoltage protection.
Share the information of technology AS7800.
The transformer is made of EE1310 magnetic core.
The output filter capacitor is from Raytheon, and the specification is 470 μ F16V.
The camera master chip is from Xingchen Technology, model SSC337DE, and built-in A7 single core processor.
Close up of 24.000MHz clock crystal oscillator.
Memory is from Hengshuo Semiconductor, model ZB25VQ128ASIG, and capacity is 16MB.
The motor driver is from Zhongkexin Yida, model MX6208, which is used to drive the filter.
The power amplifier chip adopts XPT4871, which is used to drive the internal loudspeaker of the camera.
Close up of network isolation transformer.
Close up of sensor chip.
The camera lens jacket is made of foam to block the light.
Take a look at all of them and have a family photo.
Disassembly summary of charging head network
ZTE's camera is 400W pixels, with a sealed shell, which is dust-proof and waterproof, and can be used outdoors.The camera has cloud storage and motion detection functions, with built-in infrared fill light and white LED fill light.The camera is equipped with a 100M network interface, powered by PoE, and is attached with a PoE power supply for easy installation and use.
The charging head network learned from disassembly that ZTE's camera is fully sealed, with a sealing gasket between the shells.The connection between the cable and the shell is sealed with glue.PoE power supply circuit is set on the camera core, and the camera module is powered by the crowdsourcing technology AS7800.The internal integrated controller and MOS tube of Zoomshare AS7800 chip, through primary side feedback, does not need optocoupler, with high integration and conversion efficiency, which is very suitable for PoE powered equipment.