Detailed description of wired network extended wireless solution (1)

Background
With the continuous development of network applications, people are increasingly dependent on the network, which has become an indispensable tool in people's work and life. However, with the changing environment and changing demand methods, mobile has become the trend of network office, and the existing blind spots in wired networks are gradually emerging, such: environment limitations, non-flexible service methods, and so on. As a supplement to wired networks, the wireless LAN Solution is increasingly recognized by the industry. It can provide flexible and convenient network solutions to eliminate the environmental limitations of wired networks, enrich the combination of mobile office.

User Environment and requirements

The company already has a ready-made wired network, because it has 8 laptops, 5 laptops with Intel-centre CPU) and 5 handheld computers, and is mainly used for demonstration to customers, therefore, the requirement for Network Mobility is increased. Therefore, the solution of the wireless network is chosen as a supplement to the existing network, which can make full use of the existing network environment, you can also avoid unnecessary troubles such as re-wiring.
It is required to cover about 400 m² square meters of open office environments, and 13 devices require wireless Internet access.

Required Devices
According to the analysis of the company's existing environment, it is a typical case of wireless networks as a supplement to wired networks.
Devices used in this solution:
I. 3 PCMCIA Interface wireless NICs of 802.11b.

Generally, the PCMCIA Interface wireless network Card conforms to the IEEE 802.11b standard; the output power is 18 dBm; the 32-bit PC Card Bus interface, Class ii pc Card; bandwidth: 11 Mbps with fall back rates of 5.5, 2 and 1 Mbps; accept sensitivity: Typical-84dBm for 11 Mbps @ 8% PER (Packet Error Rate); Typical-88dBm for 2 Mbps @ 8% PER (Packet Error Rate)
64/128-bit WEP encryption is supported; 35-bit indoor Open Space ~ 100 m stable connection

Ii. Five CF wireless NICs.
CF wireless network card uses the Third Generation dual-circuit ceramic antenna, and has the receiving and sending functions. The signal is more stable and the exposed antenna area is greatly reduced. The Chinese installation interface is more user-friendly and supports 22 m networks. The compatibility is much better than that of traditional products. Valid distance: the indoor open space is 35 ~ 100 m, supports IEEE Standard WEP 64/128-bit encryption, high sensitivity-85dBm @ 11 Mbps

3. the AP selects the commercial hummingbird AP.
It is an enhanced high-power wireless network access point customized for business users. The small and stylish hummingbird series commercial AP can be placed on the desktop or mounted on the wall, with excellent operability and stability. It fully supports the mobility and Seamless Roaming Between networks, and fully reflects the application value of wireless network technology: mobility. Due to the absence of cable restrictions, employees can move in different places, information can be accessed in real time. Simple wiring eliminates the tedious work of wiring through walls or through ceilings because no cabling is required. network creation time can be shortened. diverse networking, A wireless LAN can form a variety of topologies, from point-to-point mode of a few users to an infrastructure network of thousands of users; cost advantages, this advantage is reflected in the need to lease a large number of telecom leased lines for communication in the Wired Network, and the self-built WLAN will save the user rental costs.
This commercial hummingbird AP
◆ Fully compatible with the IEEE 802.11b Standard
◆ The output power is up to 20 dBm, fully covering the commercial application environment
◆ A 10 M/M Adaptive RJ45 interface and a USB interface for local configuration
◆ Automatically adjust the bandwidth based on signal strength (11/5. 5/2/1 Mbps)
◆ Fully supports network-to-Network Mobility and Seamless Roaming
◆ Local, remote, and automatic configuration features
◆ Simple application software allows users to easily install and set up
◆ Can be placed on the desktop or on the wall
◆ Valid distance
Open space: Maximum Distance: 300 meters
Office environment: 30-meters
◆ Bridging
◆ Support for IEEE 802.11b International roaming)
◆ Repeater Function
◆ Provide RSS (receive signal strength) Indication
◆ Pass FCC Part 15.247 for US, ETS 300 328 for Europe, ARIB STD-T66, RCR STD-33A for Japan certification.