Proxim ORINOCO AP-2000 User Manual download pdf (Page 13)

Introduction

Figure 1-1 Typical wireless network access infrastructure

Once initialized, the network administrator can configure each unit according to the network’s requirements. The AP

functions as a wireless network access point to data networks. An AP network provides:

• Seamless client roaming

• Easy installation and operation

• Over-the-air encryption of data

• High speed network links

To be fully operational, the AP-2000 needs at least one wireless card installed.

Guidelines for Roaming

• An AP can only communicate with client devices that support its wireless standard. For example, an 802.11a client

cannot communicate with an 802.11b AP and an 802.11b client cannot communicate with an 802.11a AP.

However, both 802.11b and 802.11g clients can communicate with an 802.11b/g AP.

• All Access Points must have the same Network Name to support client roaming.

• All workstations with an 802.11 client adapter installed must use either a Network Name of “any” or the same

Network Name as the Access Points that they will roam between. If an AP has Closed System enabled, a client

must have the same Network Name as the Access Point to communicate (see Interfaces).

• All Access Points and clients must have the same security settings to communicate.

• The Access Points’ cells must overlap to ensure that there are no gaps in coverage and to ensure that the roaming

client will always have a connection available.

• The coverage area of an 802.11b or 802.11b/g AP is larger than the coverage area of an 802.11a AP. The 802.11b

and 802.11b/g APs operate in the 2.4 GHz frequency band; the 802.11a AP operates in the 5 GHz band. Products

that operate in the 2.4 GHz band offer greater range than products that operate in the 5 GHz band.

• An 802.11a or 802.11b/g AP operates at faster data rates than the 802.11b AP. 802.11a and 802.11g products

operate at speeds of up to 54 Mbits/sec; 802.11b products operate at speeds of up to 11 Mbits/sec.

• All Access Points in the same vicinity should use a unique, independent Channel. By default, the AP automatically

scans for available Channels during boot-up but you can also set the Channel manually (see Interfaces for details).

• Access Points that use the same Channel should be installed as far away from each other as possible to reduce

potential interference.

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Proxim ORINOCO AP-2000 User Manual Page 13