Press Release Summary:
Modules WIT910 and WIT2450 as well as standalone modems HopNet HN-291 and HN-250 feature store-and-forward capability that lets any node with clear path to base station and another node assume role of repeater. This enables 20 mile range of 900 MHz WIT910 and HN-291, as well as 7 mile range of 2.4 GHz WIT2450 and HN-250, to be multiplied by number of units employed in store-and-forward link. Up to 255 devices can communicate with singular single base station.
Original Press Release:
Cirronet Wireless Transceivers Offer Store-and-Forward Capability
Industrial wireless networks based on 900 MHz and 2.4 GHz radios communicate around barriers, with extended reach
DULUTH, Georgia (September 1, 2005) - Cirronet Inc. has added store-and-forward capability to its popular WIT910 and WIT2450 OEM modules and HopNet HN-291 and HN-250 standalone modems. This new capability eliminates the need for expensive repeaters when transmitting around barriers, with the added benefits of expanding network reach and increasing the number of nodes that can communicate with a single base station.
Wireless transceivers are typically networked in star topologies, with a base station communicating directly with each node. When barriers such as large storage tanks or steep hills exist within the network area, repeaters function as intermediaries, forwarding data between the base station and impeded nodes. With the new Cirronet store-and-forward capability, any node with a clear path to both the base station and another node can assume the role of repeater, at far lower cost.
This capability extends network reach; the 20-mile range of the 900 MHz WIT910 and HN-291, and the seven-mile range of the 2.4 GHz WIT2450 and HN-250, can be multiplied by the number of units employed in a store-and-forward link. Latency introduced by this action is negligible for all but the most time-sensitive control applications, and occurs during only the first store-and-forward action. Also increased is the number of devices that can communicate with a single base station, from the previous maximum of 62 to a new maximum of 255.
Units with the new capability are shipping now.
Headquartered in metro Atlanta, Georgia, Cirronet has 18 years of success in developing innovative wireless products for industrial, scientific and military use. Cirronet offers the industry's most complete selection of wireless OEM modules and ready-to-use devices, with separate product lines featuring the company's patented frequency hopping spread spectrum (FHSS), ZigBee, 802.11b and Bluetooth implementations. Cirronet products, which are FCC certified, UL certified and CE marked, operate in license-free ISM bands. For more information, visit www.cirronet.com.