SSID (Service Set Identifier) ??is a "Service Set Identifier" for short, is a wireless network identifier is used to identify the discovery on a specific wireless network wireless device identity. All workstations and access points must use the same SSID in order to communicate among themselves. SSID is a 32-bit data, and its value is case-sensitive. It can be a physical location identifier of the wireless LAN, your name, company name, or company name and department, preferences slogans such as your favorite character. Wireless Broadband Router can run on many channels. Located in the vicinity of a variety of wireless network equipment shall be located on different channels, or will cause signal interference. If the channel you have only one device, then the default value is 6 may be the most appropriate. Unless there is a specific reason to change the channel (for example: in the region there is interference from Bluetooth, microwave ovens, mobile phone towers, or other access points) smart city, otherwise use the factory defaults. If you have a wireless router and wireless access point on the network more than one, it is recommended to use the channel for each device to be staggered, such as 802.11g, 802.11b wireless standard has 11 channels, but only three non-overlapping channels (channels 1 , channel 6, channel 11). V-Link Router: from architectural point of view, the router can be divided into the first generation of single-bus single-CPU structure of the router, the second generation single-bus structure of the main router from the CPU, the third generation of single-bus structure of symmetric multi-CPU router; fourth generation multi-bus multi-CPU structure Router, the fifth generation routers shared memory structure, the sixth generation crossbar switch architecture, routers and router-based cluster system and other types. Exchange switch can use a variety of different techniques. So far the most used technology is the bus exchange switches, cross switches and shared memory. The simplest use of a bus switch to connect all input and output ports smart city traffic, the bus switch drawback is its exchange capacity is limited to a shared bus arbitration overhead brought by the capacity of the bus as well. Crossbar providing multiple data paths through the switch, having an N × N crosspoint switch cross may be considered to have 2N bus. If a cross is closed, the data input bus is available on the output bus, otherwise unavailable. Closed and opened by the scheduler to control the cross-point, and therefore, the scheduler limits the switching speed of the switch. In the shared memory router, incoming packets are stored in shared memory, packets are exchanged only a pointer, which increases the switching capacity, however, is limited by the switching speed of memory access speed. Although the memory capacity to double every 18 months, but the memory access time is only reduced by 5% per year, which is the exchange of a shared memory limitations inherent in the switch. Wireless Router: 4G router is an industrial networking high-speed routers, flagship configuration, VPN links, industrial-grade protection, wide temperature design, can be easily set up high-speed, stable wireless transmission network, using the public network to provide users with LTE wireless long distance data transfer capabilities. 4G router adopts high-powered 32-bit processor and industrial wireless communications module, embedded real-time operating system software support platform, while providing an RS232 (or RS485 / RS422), Ethernet LAN signal smart city, Ethernet as well as a WIFI network WAN interface can connect serial devices, Ethernet devices and WIFI equipment to achieve transparent data transmission and routing functionality. 3G wireless router smart city business, also known as 3G router, is based on the third generation of mobile communications technology router. 3G, that is the third generation of mobile communications technology, it is high-speed data transfer rates of up to 14.4Mbps, or even higher data rates through WCDMA, CDMA2000, TD-SCDMA and WIMAX or network, of which the first three already commercially available in China of. Corresponding to four 3G standards, 3G router is also divided into four types, support the corresponding network. Now the market 3G wireless router basically focused on the first three criteria, simply change the appropriate network card can be. Smart city business, Anhui Technology (certification), the wisdom of the city provided by the Technology Development Co., Ltd. Hefei, Anhui. Hefei Anhui Technology Development Co., Ltd. (www.vshinetek.com/)(www.vshinetek.com) is Hefei, network communications products leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In Anhui Technology leadership with the staff warmly welcome all inquiries negotiations to create Anhui Technology better future.