Protocol Support; Figure 3 - Serial Tunneling Infrastructure; Figure 4 - Direct Wi232 To Wi232 Connection - GridConnect Wi232 User Manual

Figure 3 - Serial Tunneling Infrastructure

Etherne t
Wi232
Wireless
Serial to Ethernet
Adapter
POS Device
In the above example, the Wi232 communicates with another device server via the Access Point. The
NET232 device server, in this example, is connected via an Ethernet connection to the Access Point. As
such, the Wi232 and the device server communicate directly and can transfer information between their
serial devices. This configuration is called Infrastructure mode.

Figure 4 - Direct Wi232 to Wi232 Connection

Wi232
Wireless
Serial to Ethernet
Adapters
POS Device
In the above example, two Wi232s have established an Ad-Hoc peer-to-peer relationship. They
communicate directly to each other's serial devices without a PC or an Access Point.
Note: How do you set up the units for point-to-point? See Application Note, Wi232 Serial Tunnel, GC-800-302.

1.3 Protocol Support

The Wi232 uses the Internet Protocol (IP) for network communications and the Transmission Control
Protocol (TCP) to assure that no data is lost or duplicated, and that everything sent to the connection arrives
correctly at the target.
Other supported protocols include:
•
ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, and SNMP for network
communications and management.
•
TCP, UDP, and Telnet for connections to the serial port.
•
TFTP for firmware and web page updates.
•
IP for addressing, routing, and data block handling over the network.
•
User Datagram Protocol (UDP) for typical datagram applications in which devices interact with
other devices without maintaining a point-to-point connection.
1-4
NET232
Serial to Ethernet
Adapter
POS Device
POS Device
Wi232/WiUSB User Guide