900 MHz Radio Module
Laird Technologies’ tiny AC4490-1x1 radio modules put the power of wireless into the
smallest, most cost-sensitive applications. Despite their small size, the modules can
replace a mile of cable even in harsh industrial conditions. Using field-proven FHSS 900MHz technology that utilizes an unlicensed frequency
band*, AC4490-1x1s reject interference, enable co-located system operation, and
ensure data integrity.
With the help of a unique transparent protocol (RF232™), AC4490-1x1 integration is
easy. OEMs simply solder the radio modules and antennas into place, then power-on.
All frequency hopping, synchronization, and RF system data transmission/reception is
performed by the radio module.
The AC4490-1x1’s standard TTL interface provides bi-directional communication in
point-to-point and point-to-multipoint networks. A number of on-the-fly control
commands accommodate varying wireless applications.
Laird's embedded transparent protocol simplifies the OEM’s integration process by utilizing drop-in installation. As
each radio module receives raw data, it manages its over-the-air protocol to assure successful communication. Headers, data packet
length, and CRCs are not required. The RF232 supports simple cable-replacement to complex peer-to-peer configurations, broadcast
communication to all radio modules or address packets to a specific destination using unique MAC addresses embedded in
each radio module.
*The 900MHz frequency band is approved in the Americas and Australia as an unlicensed spectrum subject to
approval by device.
*The 900MHz band is approved in the Americas and Australia as an
unlicensed spectrum subject to approval by device.
**For products and specifications suited to non-U.S. countries
(e.g. Australia and Europe), please contact Laird Technologies directly.
†Current consumption assumes 50% transmitter on-time.
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