Sta - Jinan USR IOT Technology USR-WIFI232-A2 User Manual

USR-WIFI232-A2 User Manual http://www.usriot.com
AP: that is the wireless Access Point, the founder of a wireless network and the center of the
network nodes. The wireless router we use at home or in office may be an AP.
STA: short for Station, each terminal connects to a wireless network (such as laptops, PDA and
other networking devices) can be called with a STA device.

4.3.1 STA

Infrastructure: it's also called basic network. It built by AP and many STAs which join in.
The characters of network of this type are that AP is the center, and all communication between
STAs is transmitted through the AP. The figure following shows such type of networking.
USR-WIFI232-A2 Basic Wireless Network Structure
Figure 16
4.3.2 AP
Because USR-WIFI232-A2 can be set to AP, can also be set to STA, so the USR-WIFI232-A2 can
be achieved easily wireless ad hoc network.
As showing in the figure below, USR-WIFI232-A2 (1) can be treat as an AP, and USR-WIFI232-
A2 (2), USR-WIFI232-A2 (3) and the laptop are STAs connected to USR-WIFI232-A2 (1).
Meanwhile, all USR-WIFI232-A2 modules can connected to user device via UART interface. All
USR-WIFI232-A2 modules can be operated and managed through the laptop. So it is convenient
to O&M all USR-WIFI232-A2 modules. Moreover, in such Adhoc network structure, the whole
coverage of a wireless network can be extended easily.
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