NL241
NL241
OrderableWireless Network Link Interface
Overview
The NL241 is a Wi-Fi WLAN (wireless local area network) interface that provides connectivity to your data logger through your existing Wi-Fi network or any available Wi-Fi hotspot. It can either join an existing network or create a network providing a direct link to the data logger or to a cloud data service, like Campbell Scientific’s Konect. The NL241 can also be used as an access point for directly connecting to the data logger from any Wi-Fi enabled device.
The NL241 is a wide-operating-temperature and low-power-consumption device, making it ideal for providing Wi-Fi client and access point functionality in demanding and remote applications. The wireless access point feature allows any Wi-Fi device to connect, including your PC, phone, tablet, or even another NL241 or NL240. It can be always on, cycled on and off under program control, or brought up with the touch of a button. Unlike the NL240, the NL241 is a true access point and does not rely on ad hoc networking.
This wireless network link interface is configurable to support a number of different types of connections including PakBus™, TCP serial server and client, Modbus/TCP gateway, and Wi-Fi to CS I/O port bridging.
Key Advantages
Extremely low power consumption
Benefits
- Low power consumption for reduced power supply costs
- Embedded radio transmitter for simplified operation and use as an access point without the need for ad hoc networking
- Quick configuration as an access point in the field
- Access to full PakBus routing capabilities
- Direct data logger communication with IP connectivity supported through LoggerLink smartphone app and LoggerNet PC software
Specifications
- Transmission Distance or Area
- Worldwide
- Material
- Aluminum case with black anodized finish
- Operating Temperature Range
- -40° to +70°C
- Configuration
- Device Configuration Utility over USB or Wi-FiTelnet console over Wi-FiTerminal menu over RS-232
- CS I/O Port
- SDC 7, 8, 10, or 11
(does not support ME)
9600 bps to 460.8 kbps - RS-232 Port
- DTE, DB9 PIn (Male)1200 bps to 115.2 kbps
- USB Port
- Micro-B
- Supported Protocols
- IPv4, IPv6, ICMP/Ping, ICMPv6/Ping, TCP/IP, DHCP Client, DHCP Server (in access point mode only), SLAAC, DNS Client, HTTPS Proxy,TLS, Telnet Server, PakBus, Modbus
- TCP Connections
- 50 simultaneous connections supported10 of the 50 TCP connections can be used for TLS
- PakBus Router
- 50 routes supported
- Modbus Server
- Up to 15 concurrent transactions supported
- Power Source
- CS I/O or DC barrel connector
(not USB)
- Supply Voltage
- 9 to 16 Vdc
- Compliance Information
- CE CompliantComplies with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules
- Embedded Radio Transmitter Approvals
- FCC Identifier: XF6-RS9113SBIndustry Canada: 8407A-RS9113SB
- Service Requirements
- Wi-Fi hotspot
(access to standard 802.11b/g/n networks)
- Dimensions
- 16 x 7.3 x 2.54 cm
(6.3 x 2.9 x 1 in.)
- Weight
- 180.35 g
(6.36 oz)
WLAN
- Antenna Connector
- RPSMA
- Supported Technologies
- 802.11b/g/n, WPA/WPA2-Personal, WPA/WPA2-Enterprise Security, WEP
- Client Mode
- WPA/WPA2-Personal and Enterprise, WEP
- Access Point Mode
- WPA2-Personal
- Communication Rate
- up to 11 Mbps
(802.11b)
up to 54 Mbps(802.11g)
up to 72 Mbps(802.11n)
- Transmit Power
- 7 ± 1 dBm
(low)
10 ± 1 dBm(medium)
18 ± 2 dBm(high)
- Rx Sensitivity
- -97 dBm
- Frequency
- 2.4 GHz
Power Consumption
- Client Mode
- 7.5 to 8 mA
(idle)
65 to 75 mA(communicating)
- Access Point Mode
- 67 mA
(idle)
70 mA(communicating)
- Standby
- < 1.5 mA
Accessories
(8)15966
Wall Charger with Barrel Plug
Orderable14291
Field Power Cable, 12 Vdc Plug to Pigtail
Orderable16005
2.4 GHz 0 dBd Omnidirectional 1/2 Wave Whip Antenna
Orderable30411
2.4 GHz 5.8 dBd Omnidirectional Fiberglass Antenna without Mounting Hardware
Orderable16755
2.4 GHz 13 dBd Yagi Enclosed Antenna with Mounting Hardware
Orderable38485
4G/3G 9 dBi MIMO Cellular Antenna with 2 Type N Socket Connectors
Orderable10873
Serial Data Cable, 9-Pin Socket (Female) to 9-Pin Pin (Male)
Orderable33420
Four-Year Extended Warranty for the NL241
Orderable
Common Accessories
(9)15966
Wall Charger with Barrel Plug
The 15966 is often used when the NL241 is in an office next to a computer. This ac/dc transformer accepts inputs from 90 to 260 Vac @ 47 to 63 Hz, and then outputs 12 Vdc @ 880 mA. The 15966 is fitted with a cable and barrel plug to connect the transformer to the NL241; cable length is 6 ft.
Note: The 15966 is not needed at field sites when connecting to the CS I/O port.Orderable14291
Field Power Cable, 12 Vdc Plug to Pigtail
The 14291 field power cable allows the NL240 to be powered from a suitable 12 Vdc battery. It terminates in a barrel plug on one end for connection to the NL240 and two pigtails for connection to the 12V and GND terminals on a power supply. The cable has a 2 foot length.
Note: The 14291 is not needed at field sites when connecting to the CS I/O port.Orderable16005
2.4 GHz 0 dBd Omnidirectional 1/2 Wave Whip Antenna
The NL241 requires an antenna. The 16005 is a unity gain (0 dBd), 1/2 wave whip, omnidirectional antenna. Its articulating knuckle joint can be oriented vertically or at right angles. This antenna attaches directly to the radio; a cable is not required. The 16005 must reside inside a building or enclosure.
Orderable30411
2.4 GHz 5.8 dBd Omnidirectional Fiberglass Antenna without Mounting Hardware
The NL241 requires an antenna. The 30411 is a 5.8 dBd omnidirectional antenna for use with our 2.4 GHz spread-spectrum products. The 30411 is suitable for base-station use where communication is needed with multiple stations located in different directions. It is also preferred in mobile applications and in other applications in which the best radio path is not constant, including close-up applications without clear line of sight. Mounting hardware is not included.
Orderable38485
4G/3G 9 dBi MIMO Cellular Antenna with 2 Type N Socket Connectors
The NL241 requires an antenna. The 38485 is one antenna option. The 38485 antenna is a wideband, dual-port, directional-panel antenna with slant 45 polarization that covers US LTE700/Cellular/PCS/AWS/MDS and global GSM900/GSM1800/UMTS/LTE2600 bands. The antenna is ideal for both indoor and outdoor applications. It includes a UV-stable radome enclosure that provides years of use without degradation to either mechanical properties or aesthetics. Even though this antenna is uniquely suited for use with cellular modems, it can also be used in Wi-Fi applications.
Orderable16755
2.4 GHz 13 dBd Yagi Enclosed Antenna with Mounting Hardware
The NL241 requires an antenna. The 16755 is a high-gain (13 dBd), directional (Yagi) antenna used with our 2.4 GHz radio transceivers. It is intended for longer distances, and for communicating to one other station (due to narrow beam width).
OrderableCOAXRPSMA
LMR195 Antenna Cable with Reverse Polarity SMA and Type N Pin (Male) Connector
One antenna cable is needed per non-whip antenna. The COAXRPSMA is an LMR195 coaxial cable fitted with a Type N pin (male) connector on one end and a Reverse Polarity SMA (RPSMA) pin (male) connector on the other end. This cable is commonly used to connect an antenna with Type N connector to a spread-spectrum radio with an RPSMA connector.
Orderable10873
Serial Data Cable, 9-Pin Socket (Female) to 9-Pin Pin (Male)
The 10873 is a DB9-female-to-DB9-male cable that connects the NL241 to the datalogger’s RS-232 port. The cable has a 6 ft length.
Orderable33420
Four-Year Extended Warranty for the NL241
The 33420 extends the NL241 standard one-year warranty for an additional four years.
Orderable
Replacement Parts
(4)6044
Grommet for #6 or #8 Screw
These grommets are commonly used with the 505 screws to secure our equipment to the backplates of our enclosures.
Orderable505
Screw #6-32 x .375 Pan Phillips
These screws, along with the 6044 grommets, are commonly used together to secure our equipment to the backplates of our enclosures.
OrderableSC12
Robust CS I/O Cable, 2 ft
The SC12 is our standard cable for connecting the data logger's 9-pin serial I/O port to most peripherals with a 9-pin port.
Orderable27555
USB 2.0 Cable, Type A Pin (Male) to Micro B Pin (Male), 6/6.5 ft
The 27555 is a USB Type A to Micro B, pin (male)-to-pin (male) cable, 6 to 6.5 ft long. It connects devices using the Micro B interface to a USB port on a computer.
Orderable
Similar Products
(1)
Compatibility
The NL241 is powered by the data logger when connecting through the CS I/O port. When connected to the RS-232 port, a field cable (pn 14291) is used to connect the NL241 to an appropriate 12 Vdc power supply.
Data Logger Considerations
| Data Logger | Serial Server | PakBus Router | Bridge Mode* |
| CR300/CR310/CR350♣ |  |
|
|
| CR200(X) Series | |
|
|
| CR800/CR850 | |
|
|
| CR1000 | |
|
|
| CR3000 | |
|
|
| CR5000 | |
||
| CR9000X | |
||
| CR6 | |
|
|
| CR1000X/CR1000Xe | |
|
|
| CR510-PB | |
|
|
| CR10X-PB | |
|
|
| CR23X-PB | |
|
|
| Mixed-Array Data Loggers |
** |
Notes:
♣The CR300, CR310, and CR350 connect to the NL240 using a 10873 serial cable that is not supplied with the data logger 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.
Related Resources
Documents
- Technical Paper
Data Streaming
July 2023
View Document - Brochure
NL241 Wireless Network Link Interface
March 2026
View Document - Technical Paper
The Link Budget and Fade Margin
September 2016
View Document - Technical Paper
Line of Sight Obstruction
October 2016
View Document
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