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Product Overview
The RF Neulink's NL900 and NL2400 stand-alone transceivers can be set up in minutes to virtually cut the cables between RS232/RS485/RS422 devices. Their flexibility and price allow users to quickly upgrade wired terminals to cordless operation in industrial, commercial, even residential applications.
Powered by a 1000 mW 900 MHz or a 200 mW 2.4 GHz radio, each unit is small and easily portable for use in mobile and temporary settings as well as for fixed installations. Optional software enables custom configurations based on user needs.
These units implement a proprietary communication protocol to provide secure local data transmissions. Because it uses FHSS technology, the data remains reliable over distances of up to 20 miles line-of-sight (900MHz) Use of license free frequency bands ensures that the NL900 & NL2400 are ready to use with no further certification requirements.
NL900 LAN
The NL900 LAN provides a complete hardware and software solution for adding wireless network connectivity to serial-based applications . The transceiver serves as a conduit between the user and multiple destination devices via a local network or the Internet. Controlling distant OEM networks is as easy as accessing the ‘Net.
Unlike other industrial wireless Ethernet offerings, NL900LAN does not require a COM port director. All software controls communicate directly to the device, greatly improving system latency. And the NL900LAN will support a wireless Ethernet-to-serial bridge to allow separate networks to talk with one another simultaneously.
RF Protocol
Acknowledgement (ACK) Transmitted packets are successfully acknowledged. If not, they are resent until successful (user selectable number of retries). Error detection is used and duplicate data filtered out before sending to the host interface. Optional full duplex control setting allows equal time for transmitting and receiving data at the RF level, keeping a single transmitter from dominating the system bandwidth.
RF Addressing Modes
Unicast (one-to-one addressing)
Broadcast (one-to-many addressing)
RS232 Transparent Protocol
Change configuration commands, Configuration can be changed through a command/data interface signal or AT commands. Change-on-the-fly parameters include base or remote designations, destination MAC address, channel number (to communicate with a different base), enter/exit low-power modes, etc. Custom settings are available by user request.
Data Encryption Standard (DES)
DES uses an established algorithm and a 56-bit key stored in onboard EEPROM. to protect data. Available in 900 MHz version only.
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