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NL240 Wireless Network Link Interface

4. Overview

The NL240 Wireless Network Link Interface is designed for communication

with Campbell Scientific dataloggers and peripherals over a Wi-Fi network.

The Wi-Fi network can be an infrastructure network or an ad hoc (point-to-

point) network. See Section 6, Wi-Fi, for more information.

The NL240 includes a CS I/O port and an RS-232 port for communication. A

USB device port is used for configuring the NL240 device.

FIGURE 4-1. NL240

Bridge Mode Enabled

The NL240 can be configured to bridge WLAN and CS I/O communications

(see FIGURE 4-2). This mode is used for providing access to the internal IP

functionality of the CR800/850, CR1000, and CR3000 (e.g., web page access,

email, FTP, etc.). Bridge mode does not use PPP. Instead, raw IP packets are

transferred between the WLAN and CS I/O connections.

FIGURE 4-2. Bridge Mode enabled

Bridge Mode Disabled

With Bridge Mode disabled (see FIGURE 4-3), the NL240 can provide

multiple services simultaneously including TCP Serial Server, TCP Serial

Client, Modbus TCP/IP Gateway, and PakBus® router. The NL240 can act as

a serial server and PakBus router simultaneously. However, each physical port

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