Lantronix 900-422 manual XPress DR+W, Application Examples, Serial Tunneling Network

Chapter 4: XPress DR+W

The wireless version of the XPress DR+ (XPress DR+W) provides serial-to-wireless network connectivity as an alternative to wired Ethernet connectivity. The wireless unit uses IP protocol (TCP for connection-oriented stream applications and UDP for datagram applications), enabling virtually any serial device or equipment to be remotely accessed, controlled, monitored, or shared on an 802.11b/g wireless network. The XPress DR+W provides a fully integrated solution that combines an operating system, embedded Web server, full TCP/IP protocol stack with an 802.11b/g transceiver supporting WEP and WPA security.

Application Examples

The XPress DR+W has an 802.11b/g transceiver in addition to its serial and Ethernet ports. Each serial port is connected to the serial communication port of a device. The wireless transceiver connects to another wireless device or to an Access Point (AP). This section includes typical scenarios for using the XPress DR+W.

Serial Tunneling – Network

Figure 4-1. Serial Tunneling Infrastructure Network Example

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A PC connected to an AP via an Ethernet connection and a PC with a wireless connection to the AP LAN access the XPress DR+ W as though they are directly

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