One of the challenges in transparent RF communications is the need for a versatile and reliable solution, converting RS-232 or RS-485 to a wireless medium, which caters for medium-distance wireless communications within the confines of, for example, an office park, as well as catering for long-distance communications requirements.
These two requirements very often entail a very different set of constraints in terms of hardware and associated cost. But what if there was one solution which had the versatility to address both sets of needs? Let’s explore that option.
One of the strengths of Wlink industrial routers is their access point, in terms of cost, is not considered high. The products are small and robust, and regardless of which series one considers, there are a lot of features which are common across all the products. One key feature is the ability to set the devices up as either a serial client or a serial server, and to have the client report in to the server in a transparent mode. This mode can be used in two ways:
1. When connected to a high power Wi-Fi access point via the LAN port, two routers can be set up to communicate with one another over reasonably wide distances, without incurring any data costs.
2. The same setup as the above can be considered, without the external Wi-Fi access points, to communicate via the HSPA / LTE network, across the globe.
Practically speaking, one would use the smallest, entry level router for this; as an example, nothing more than the WL-R100H4 is needed. This device has a serial port which can be connected to the serial port of the client’s equipment, and communications to the second router can be set up in a transparent fashion, such that the output of the second router’s serial port matches the input of router 1. If the end equipment has an RS-485 port, an RS-485 to RS-232 converter can simply be placed between the router’s serial port and the end device’s RS-485 port.
This may sound over-simplified… because it is ‘serialously’ (excuse the pun) that simple.
Power amps for portable radio comms systems iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.
Read more...RF agile transceiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...Choosing a GNSS receiver RF Design
Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.
Read more...Tri-Teq’s latest range of filters RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).
Read more...The evolution of 4D imaging radar Altron Arrow
Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.
Read more...Links Field Networks: The perfect fit for telematics in Africa Links Field Networks
Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.
Read more...RF direct conversion receiver iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.
Read more...Bridging the future with RAKWireless WisNode devices Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
The WisNode Bridge series by RAKWireless is designed to convert traditional wired industrial protocols like RS485 and Modbus into LoRa-compatible signals.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version