Integrated 4-port 10/100Mbps adaptive Fast Ethernet switch port
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Built-in TD-SCDMA wireless module to share high-speed connection of TD-SCDMA wireless network
Virtual Private Network (VPN), which supports standards-based IPSec VPN services, supports data encapsulation, encryption, and authentication options including IPESP, DES, 3DES, AES, MD5, and SHA-1.
Firewall security features such as stateful packet inspection (SPI) and denial of service (DoS) attack prevention, the SPI detects the contents of all incoming packets before deciding what packets are allowed to pass. The filter can be set to be based on the MAC address, IP address.
Network Address Translation (NAT) and Port Address Translation (PAT), hiding internal IP addresses and expanding URL space
Support for virtual servers and DMZ
Remote and local upgrade firmware to provide firmware backup
Provide multi-level connection detection: always online, dial on demand.
Support DTU function
Remote management, remote management through support OVDP management platform, industrial design, power terminals, rail mounting, 9-24VDC power supply, wide temperature, support for industrial fieldbus protocol MODBUS.
Central side network architecture description
The central end has a public network environment, and the outermost end is provided with a broadband VPN router (such as netscreen-25).
Client network architecture description
The client is mainly composed of a monitoring cloud platform and a monitoring terminal box. The video encoder and the Yinghantong 3G router are arranged in the monitoring terminal box. After the 3G router connects to the TD-SCDMA network through dial-up, it establishes a VPN connection with the VPN device of the monitoring center to provide data security protection for the wireless transmission. The video data of the user is encrypted by the encryption algorithm and transmitted in the protection of the VPN tunnel. Greatly guarantee the security of the data.
4, equipment selection
4.1 Central equipment selection
The central network equipment is recommended to use Cisco or Juniper's VPN router or firewall, use ADSL or fiber access, and need to have a fixed public IP address.
4.2 Wireless communication equipment selection
According to the working environment of the site, we use the form of terminal box to ensure that the equipment can operate safely and stably under the harsh environment. The video server and the 3G router supporting the TD-SCDMA network are arranged in the terminal box, and the 3G router supporting the TD-SCDMA network adopts the product of Beijing Yinghantong Network Technology Co., Ltd., and the model is InRouter600. The router uses standard Ethernet protocol for network routing, and uses standard VPN (Virtual Private Network) technology to complete secure interconnection of remote networks and realize machine-to-machine data communication based on standard TCP/IP protocol. Based on VPN technology, an encrypted tunnel can be established between different networks through the Internet to realize secure interconnection of remote networks and build a virtual private network.
Plug-in Terminal Block
It is made of two parts of plug-in connection. One part compresses the wire and then plugs it into the other part, which is welded to PCB. The mechanical principle of the connection bottom and the anti vibration design ensure the long-term airtight connection of the product and the use reliability of the finished product. The two ends of the socket can be equipped with lugs, which can protect the lug to a large extent and prevent the poor arrangement of the lug.
At the same time, this kind of socket design can ensure that the socket can be inserted into the matrix correctly.
The socket can also have assembly and locking positions. The assembly buckle can play a more stable role in fixing to the PCB, and the lock buckle can lock the mother body and the socket after the installation. Various socket designs can be matched with different insertion methods of the parent, such as: horizontal, vertical or inclined to printed circuit board, etc., and different ways can be selected according to the requirements of customers. Either metric wire gauge or standard wire gauge can be selected, which is the most popular terminal type in the market at present.
Plug-in Terminal Block
ShenZhen Antenk Electronics Co,Ltd , https://www.atkconnectors.com