Contents

Revision and copyright information
Table of contents
1. Introduction
2. Precautions
3. QuickStart
- 3.1 Physical setup
- 3.2 Configuring the NL241
- 3.3 Loggerlink setup
- 3.4 Connect
4. Overview
- 4.1 Bridge mode enabled
- 4.2 Bridge mode disabled
5. Specifications
6. Wi-Fi
- 6.1 Introduction to Wi-Fi for WLANs
- 6.2 Wireless network modes
  - 6.2.1 Join a network
  - 6.2.2 Create a network
  - 6.2.3 DHCP server in a created network
- 6.3 RSSI
- 6.4 Antennas
- 6.5 Power
- 6.6 LED
  - 6.6.1 Normal operation
  - 6.6.2 Operating system upgrade
- 6.7 Mode button
  - 6.7.1 Disable button
  - 6.7.2 Temporarily enable Wi-Fi
  - 6.7.3 Temporarily create a network
  - 6.7.4 Temporary network duration
7. Configuring the NL241
- 7.1 Configuring the NL241 with Device Configuration Utility via USB
- 7.2 Configuring the NL241 with Device Configuration Utility via WiFi WLAN
- 7.3 Configuring the NL241 with Telnet via Wi-Fi WLAN
- 7.4 Configuring the NL241 via RS-232
8. Operation
- 8.1 Wi-Fi connection
  - 8.1.1 Join an existing network
  - 8.1.2 Create a network
- 8.2 Operational mode
  - 8.2.1 PakBus router
    - 8.2.1.1 Physical setup
    - 8.2.1.2 Configuring the NL241
      - RS-232 PakBus router
      - CS I/O PakBus Router
    - 8.2.1.3 LoggerNet setup
    - 8.2.1.4 Connect
  - 8.2.2 Bridge mode
    - 8.2.2.1 Physical setup
    - 8.2.2.2 Configuring the NL241
    - 8.2.2.3 Configuring the data logger
    - 8.2.2.4 LoggerNet setup
    - 8.2.2.5 Connect
  - 8.2.3 TCP serial server
    - 8.2.3.1 Physical setup
    - 8.2.3.2 Configuring the NL241
      - RS-232 Serial server
      - CS I/O serial server
    - 8.2.3.3 LoggerNet setup
    - 8.2.3.4 Connect
    - 8.2.3.5 Serial sensors
  - 8.2.4 TCP Serial Client
  - 8.2.5 Modbus TCP/IP to RTU Gateway
  - 8.2.6 TLS
    - 8.2.6.1 TLS proxy server
    - 8.2.6.2 Device Configuration Utility TCP encrypted communications to the NL241
9. Working around firewalls
- 9.1 Configuring the NL241
- 9.2 Configure the data logger
10. Troubleshooting
Appendix A. Cables, pinouts, LED function, and jumper
- A.1 CS I/O
- A.2 RS232
- A.3 Link/Activity LED
- A.4 Power jumper
Appendix B. NL241 settings
- B.1 Main tab
  - B.1.1 Model (read only)
  - B.1.2 Serial Number (read only)
  - B.1.3 OS Version (read only)
  - B.1.4 Compile Date (read only)
  - B.1.5 Bridge Mode
  - B.1.6 CS I/O IP Interface Identifier
  - B.1.7 Bridge Mode Forward Code
  - B.1.8 DHCP
  - B.1.9 IP Address
  - B.1.10 Subnet Mask
  - B.1.11 Default Gateway
  - B.1.12 DNS Servers
  - B.1.13 IP Info
  - B.1.14 Admin Password
  - B.1.15 TCP Configuration Port Number
- B.2 Wi-Fi tab
  - B.2.1 Wi-Fi Status
  - B.2.2 Configuration
  - B.2.3 Network Name (SSID)
  - B.2.4 Password
  - B.2.5 EAP User
  - B.2.6 EAP Password
  - B.2.7 EAP Method
  - B.2.8 Button Configuration
  - B.2.9 Channel
  - B.2.10 Tx Power Level
  - B.2.11 Power Mode
  - B.2.12 WLAN Domain Name
  - B.2.13 Wireless Networks in Area
- B.3 RS232 tab
  - B.3.1 RS232 Configuration
  - B.3.2 RS232 Service Port
  - B.3.3 RS232 Baud Rate
  - B.3.4 RS232 RTS
  - B.3.5 RS232 TCP Timeout
  - B.3.6 RS232 Always On
  - B.3.7 RS232 PakBus Beacon Interval
  - B.3.8 RS232 PakBus Verify Interval
  - B.3.9 Neighbors Allowed RS232
  - B.3.10 RS232 Modbus Timeout
  - B.3.11 RS232 TCP Serial Client IP Address
  - B.3.12 RS232 TCP Serial Client Port
- B.4 CS I/O tab
  - B.4.1 CS I/O Configuration
  - B.4.2 CS I/O Service Port
  - B.4.3 SDC Address
  - B.4.4 CS I/O TCP Timeout
  - B.4.5 CS I/O PakBus Beacon Interval
  - B.4.6 CS I/O PakBus Verify Interval
  - B.4.7 CS I/O Modbus Timeout
- B.5 Net Services tab
  - B.5.1 Telnet
  - B.5.2 Telnet Port Number
  - B.5.3 Telnet Timeout
  - B.5.4 Ping (ICMP)
  - B.5.5 PakBus Address
  - B.5.6 PakBus/TCP Service Port
  - B.5.7 PakBus/TCP Password
  - B.5.8 PakBus/TCP Client Address (1-4)
  - B.5.9 PakBus/TCP Client Port (1-4)
  - B.5.10 PakBus Routes (read only)
  - B.5.11 Central Routers
- B.6 TLS Proxy Server tab
  - B.6.1 TLS Proxy Server
  - B.6.2 TLS Proxy Service Port
  - B.6.3 TLS Proxy Forward Physical Port
  - B.6.4 TLS Proxy Forward IP Address
  - B.6.5 TLS Proxy Forward Port
  - B.6.6 TLS Proxy Timeout
- B.7 TLS tab
  - B.7.1 TLS Status (read only)
  - B.7.2 TLS Private Key Password
  - B.7.3 TLS Private Key
  - B.7.4 TLS Certificate
Appendix C. Sending a new OS to the NL241
- C.1 Sending an OS via USB
- C.2 Sending an OS via Wi-Fi
Appendix D. Radio frequency emission
Limited warranty
Assistance
Safety
Campbell Scientific regional offices

Campbell Scientific NL241 Product Manual

Campbell Scientific NL241 Communications Device manual cover

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Campbell Scientific NL241 Communications Device Specification

The Campbell Scientific NL241 is a robust communications device designed to facilitate wireless data transfer for environmental monitoring systems. Operating within the IEEE 802.11b/g/n Wi-Fi standards, it provides high-speed connectivity options for seamless data integration. The device supports both infrastructure and ad-hoc networking modes, allowing flexible deployment in various field conditions.

The NL241 features a compact, weather-resistant enclosure suitable for harsh outdoor environments, ensuring reliable performance in diverse climatic conditions. It operates efficiently over a temperature range of -25°C to 70°C, making it ideal for remote field applications. The device offers multiple encryption methods, including WEP, WPA, and WPA2, to ensure secure data transmission.

Equipped with a 10/100 Mbps Ethernet port, the NL241 can interface directly with data loggers, facilitating efficient data collection and remote communication. Its low power consumption capabilities make it compatible with solar power systems, an essential feature for remote or off-grid applications. The NL241 is powered through 12 VDC, typically using an AC adapter or external battery, further enhancing its adaptability in the field.

The NL241 also includes a high-gain antenna that enhances signal reception and transmission range, enabling connections over longer distances and through obstacles. Its configuration is user-friendly, accessible via a web interface, simplifying setup and maintenance tasks for field technicians. With its robust design and versatile networking capabilities, the Campbell Scientific NL241 is a reliable choice for environmental monitoring and data acquisition tasks, ensuring continuous connectivity and data availability in remote operations.

Campbell Scientific NL241 Communications Device F.A.Q.

How do I connect the NL241 to a Campbell Scientific data logger?

To connect the NL241 to a Campbell Scientific data logger, use an Ethernet cable to connect the device to the logger's Ethernet port. Ensure that both devices are powered on and properly configured for network communication.

What is the recommended way to update the firmware on the NL241?

To update the firmware on the NL241, download the latest firmware from Campbell Scientific's website. Connect the NL241 to a computer via Ethernet, and use the Device Configuration Utility to upload the new firmware file to the device.

How can I troubleshoot connectivity issues with the NL241?

To troubleshoot connectivity issues, verify that the Ethernet cables are securely connected and that the network settings are correct. Check for any firmware updates and ensure the device is within range of the network. Use the Device Configuration Utility to diagnose network settings and connectivity status.

What are the power requirements for the NL241?

The NL241 requires a power supply of 9 to 16 VDC. It can be powered through a data logger, external battery, or power adapter. Ensure that the power source provides sufficient voltage and current.

How do I reset the NL241 to its factory settings?

To reset the NL241 to factory settings, use a pin or a paperclip to press and hold the reset button on the device for about 10 seconds until the status LED blinks, indicating a successful reset.

Can the NL241 be used in outdoor environments?

The NL241 is designed for indoor use but can be used outdoors if housed in a suitable environmental enclosure that protects it from moisture, dust, and extreme temperatures.

What is the maximum data transmission range of the NL241?

The maximum transmission range of the NL241 depends on the environment and obstructions but typically reaches up to 1 km in open, line-of-sight conditions.

How can I optimize the Wi-Fi performance of the NL241?

To optimize Wi-Fi performance, place the NL241 in an area with minimal obstructions and interference. Ensure that the antenna is positioned correctly, and consider using external antennas if available. Regularly check for firmware updates to enhance performance.

Is it possible to use the NL241 with third-party network hardware?

Yes, the NL241 can be integrated with third-party network hardware, provided that the devices are compatible with standard network protocols. Ensure proper configuration and compatibility checks are performed.

What maintenance is required for the NL241 to ensure optimal operation?

Regularly check and update the firmware, inspect connection cables for wear or damage, and ensure the device is kept in a clean, dry environment. Periodically verify network settings and performance to maintain optimal operation.