Quatech WLNG-ET-DP500 Series Manual do Utilizador descarregar pdf (Página 24)

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24 Airborne CLI Reference Manual 100-8081-100

8.0 Serial Device Server Use

In this section the base functionality of the Serial/UART device server will be described

and examples of use and configuration will be provided to highlight the best use of the

module and CLI. Refer to this section to understand the differences between a command

port, data tunnel, TCP/IP vs. UDP use and server vs. device operation.

The Airborne Enterprise Serial Device server provides the ability to connect a raw serial

data stream to a TCP/IP based network using 802.11 as the primary network connection

media. To facilitate this functionality the module supports a number of management and

data bridging interfaces on both the serial (Serial/UART/SPI) and network (802.11)

interfaces. As described in section 3.2, there are multiple states for the CLI interface; this

section will describe the data bridging options and the required CLI configuration for

each.

8.1 Data Bridging

The Airborne™ WLN Module provides data bridging via the PASS and LISTEN

Modes of the CLI Session. During data bridging, the raw payload of the incoming

TCP or UDP packet is transmitted to the serial interface while the raw data

stream from the serial interface is transmitted as the payload of the outgoing TCP

or UDP packet.

There are multiple ways to setup a data bridge using the Airborne™ WLN

Module. A bridge may be initiated from the Serial Host, from a TCP connection

on the wl-telnet-port, from a TCP connection on the wl-tunnel-port,

or from a UDP message on the wl-udp-rxport.

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Only one CLI session on the network (802.11) interface may be bridged with a CLI

session on the serial interface.

8.1.1 Bridging from the Serial Interface

The CLI Session on the serial interface may initiate a data bridge via the use of

the serial-default parameter set to “pass” or by manually issuing the

pass CLI command. Prior to establishing the data bridge, the Airborne™ WLN

Module must be properly configured to connect to a server on the network that

will accept the communications. The following examples illustrate how to

configure the Module to initiate a connection to a TCP server:

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