Quatech AirborneDirect WLNG-ET Series Specifikace stáhnout pdf (Strana 10)

1 – CLI Overview

Page 4 Airborne™ Product Family CLI Reference Guide 100-8005-101G

Quatech, Inc. Confidential

1.2.8 LISTEN Mode (Serial Interface Only)

LISTEN Mode is a passive data bridging mode of the CLI Session. The LISTEN Mode is only

applicable on the serial interface. When the CLI Session on the serial interface enters LISTEN

Mode, the Airborne™ WLN Module passively waits for a data bridge to be established over the

wireless interface. The data bridge may be initiated using a CLI Session via the PASS Mode or

using the tunneling feature. The CLI Session may transition to CLI Mode using CLI Server

escape processing. See section “CLI Server Escape Processing” for details.

When the serial interface CLI Session is in LISTEN Mode, the following are possible:

 TCP connections on the wireless interface can use the CLI commands pass,

putget or putexpect to establish a data bridge.

 TCP connection can establish a data bridge if tunneling is enabled.

1.2.9 CLI Session Startup Modes

The startup behavior of the CLI Session on each interface is determined as follows:

 The CLI Session on the serial interface startup behavior is determined by the value

of the serial-default parameter.

 CLI Sessions on the wireless interface using the TCP port specified by wl-telnet-

port always start in CLI Mode.

 CLI Sessions on the wireless interface using the TCP port specified by the wl-

tunnel-port or the UDP port specified by wl-udp-rxport, always start in PASS

Mode. However, if the CLI Session on the serial interface is not in LISTEN Mode, the

TCP connection on the wl-tunnel-port will be rejected by the Module.

1.2.10 CLI Server Escape Processing

The CLI Server includes an escape processing feature which allows CLI Sessions to transition

from PASS or LISTEN (data bridging) Mode back to CLI Mode. Escape processing is

configurable to:

 disable escape processing

 process the receipt of a user-defined escape string as an escape signal

 process the receipt of the BREAK signal as an escape signal

When escape processing is disabled, the CLI Server will not parse the data stream for any

escape sequence. When escape processing is configured to use an escape string, the CLI

Server will perform pattern matching for the user-defined escape string in the data stream. The

escape string is a five (5)-character string configurable via the escape CLI command. When

escape processing is configured to use the BREAK signal, the CLI Server will parse the data

stream for the BREAK signal.

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Quatech AirborneDirect WLNG-ET Series Specifikace Strana 10