This product is no longer available and has been replaced by: NL241. Some accessories, replacement parts, or services may still be available.
NL240 Wireless Network Link Interface
Services Available
Repair Yes
Calibration No
Free Support Yes


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.

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Beneficios y características

  • Low power consumption
  • Wi-Fi-to-CS I/O bridging provides direct access to Internet protocol capabilities of CR6, CR800, CR850, CR1000, or CR3000 dataloggers
  • Powerful PakBus routing capabilities
  • Serial server functionality for networking Campbell Scientific devices, as well as third-party devices
  • Provides IP connectivity for communication with LoggerLink smartphone app and LoggerNet PC software


Descripción técnica

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


Compliance CE compliant
Material 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 Micro-B
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)
Dimensions 16 x 6.73 x 2.54 cm (6.3 x 2.65 x 1 in.)
Weight 177 g (6.3 oz)

Communication Rate

RS-232 Port 1200 bps to 115.2 kbps
CS I/O Port 9600 bps to 460.8 kbps


Antenna Connector RPSMA
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
Topologies Infrastructure and ad-hoc
Transmit Power 7 to 17 dBm (5 to 50 mW)
Rx Sensitivity -97 dBm (< 8% PER)
Frequency 2.4 to 2.5 GHz (2.4 GHz ISM band)

Power Consumption

Maximum 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)
Sleep 16 mW


Wi-Fi ad hoc networking is provided for the purpose of networking between NL240 interfaces. Ad hoc networking is supported by iOS, allowing an iOS device to connect to an NL240 that has created a network. Wi-Fi ad hoc networking is not supported natively by Android OS and is difficult to support on Windows 7 and greater.


Our Device Configuration Utility must be version 2.03 or higher.

Data Logger Considerations

Data Logger Serial Server PakBus Router Bridge Mode*
CR200(X) Series
Data Loggers

♣The CR300 connects to the NL240 using a 10873 serial cable that is not supplied with the CR300 or the NL240. The CR300-series dataloggers are not compatible with the bridge mode functionality in the NL240 interface.
* The data logger OS must be OS 25 or higher for bridge mode applications.
** It is possible to use an NL240 to connect to a mixed-array data logger (e.g., CR10, CR10X, CR23X, 21X, CR7) by using an SC32B between the data logger's CS I/O port and the NL240's RS-232 port.

Documentos relacionados


NL240 Drivers () 01-01-2014

Windows USB drivers for the NL240 are installed via the Device Configuration Utililty. In the Device Configuration Utility, click on the link "install the device driver for the NL240" in the main body of text for the NL240.

Note: Drivers must be installed before connecting the NL240 to your computer.


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