Bộ chuyển đổi CS I/O sang Ethernet Wi-Fi Campbell Scientific NL240

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NL240 Wireless Network Link Interface

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Bộ chuyển đổi CS I/O sang Ethernet Wi-Fi Campbell Scientific NL240


The NL240 is a wireless networking peripheral that provides Wi-Fi connectivity to our dataloggers and peripheral devices over standard 802.11b/g/n networks. It is a low-power device that offers unique and powerful PakBus networking capabilities, but it is easy to configure. The NL240 provides direct access to all the IP capabilities of the CR800, CR1000, and CR3000 dataloggers.

Benefits and Features

  • Low power consumption

  • Can be configured to bridge Ethernet and CS I/O communications

  • Has CS I/O, RS-232, and USB ports

Detailed Description

The NL240 can take advantage of the thousands of Wi-Fi hotspots available in cafés, universities, hotels, and airports. Wi-Fi also provides encryption to protect traffic and uses a global set of standards so the same device can be used internationally.

The NL240 is an industrial device that goes beyond the typical Wi-Fi serial device server. It supports Wi-Fi communication with an iOS or Android device when used with our LoggerLink apps. By providing direct access to all the IP capabilities of the CR800, CR1000, and CR3000 dataloggers, the NL240 provides:

  • M2M communication of data and events

  • PakBus communication over TCP/IP for remote configuration, control, and data collection

  • HTTP and FTP for posting, retrieving, and local hosting of data

  • Email client for data and control messaging

  • ModBus TCP/IP, DNP3, and NTCIP ESS industrial protocol support



CE compliant


Aluminum case with black anodized finish


  • Device Configuration Utility over USB or Wi-Fi

  • Terminal menu over Telnet

  • Terminal menu over RS-232

CS I/O Port

SDC 7, 8, 10, or 11 (does not support ME)

RS-232 Port

DTE, DB9 Male

USB Port


Operating Temperature Range

  • -25° to +50°C (standard)

  • -55° to +85°C (extended)

Power Connector

CS I/O Port, DC barrel connector (not powered over USB)

Powered Over

CS I/O or barrel plug

Supply Voltage

7 to 20 Vdc

Connections/Routes Supported

  • Supports 50 simultaneous TCP connections.

  • Up to 10 of the 50 TCP connections can be used for TLS.

  • PakBus Router supports 50 routes.

  • 15 Modbus Server Transactions (maximum)


16 x 6.73 x 2.54 cm (6.3 x 2.65 x 1 in.)


177 g (6.3 oz)

Communication Rate

RS-232 Port

1200 to 115.2k bps

CS I/O Port

9600 to 460.8k bps


Antenna Connector


Technologies Supported

802.11b/g/n, WPA, WPA2 /TKIP or AES, WEP, WEP(open), APIPA/AutoIP, IPv4, IPv6, ICMP/Ping, ICMPv6/Ping, TCP, DHCP Client, SLAAC, DNS Client, HTTPS Proxy, Telnet Server, TLS, PakBus, Modbus, TCP/IP


Infrastructure and ad-hoc

Transmit Power

7 to 17 dBm (5 to 50 mW)

Rx Sensitivity

-97 dBm (< 8% PER)


2.4 to 2.5 GHz (2.4 GHz ISM band)

Power Consumption


950 mW

Typical (Always On)

  • 600 mW idle

  • 670 mW communicating

  • 65 mW searching for out-of-range network

Typical (Low Power Mode Enabled)

  • 73 mW idle

  • 480 mW communicating

  • 50 mW searching for out-of-range network


16 mW



NL240 Wi-Fi Communications Peripheral


NL240 Wireless Network Link Interface

Technical Papers

FTP Streaming

The Link Budget and Fade Margin

Line of Sight Obstruction

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