AC4490 - 900MHz Transceiver

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900MHz Radio Module

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Laird compact AC4490 900MHz radio modules replace miles of cable in harsh industrial environments. Using field-proven FHSS technology that needs no additional site licensing*, AC4490s reject interference, enable co-located system operation, provide a full range of output power, and maintain data integrity. The AC4490 features include drop-in installation and a number of on-the-fly control commands, providing OEMs with a versatile interface for any application. They can be used as direct cable replacements, requiring no special host software for communication. All frequency hopping, synchronization, and RF system data transmission/reception is performed by the module. This radio module can achieve open field ranges in excess of 20 miles, has high propogation in the 900 MHz band, and includes options for 1W power transmission and a sensitive low noise amplifier in the receive chain. AC4490 modules are socket-compatible with Laird 2.4GHz AC4424 modules, enabling OEMs to design once and subsequently interchange radios to accommodate new markets, regulations, and environments. Developer tools and comprehensive technical support are available to aid integration.

This product is listed in Industrial Automation, Mining, Transport

Interface 20-pin mini connector
Frequency (software selectable) 902-928 MHz (U.S)**
Modulation FHSS FSK
Serial interface options 3V TTL
Serial interface data rate Up to 115.2 Kbps
Output power (w/ 3dBi antenna) 10mW-1000mW variable
Current consumption†† 650 mA typical
Channels Up to 32 (U.S.)**
Security One-byte system ID, DES
Voltage pin 10: 3.3V-5.5V
pin 11: 3.3V +/-3%
Sensitivity AC4490-1000: -100 dB
AC4490LR-1000: -110 dB (Long Range mode)
Range Up to 20 miles (32 km)
Temperature -40º to +80ºC
Humidity (non-condensing) 10% to 90%
Dimensions 1.90 x 1.65 x 0.20“
(49 x 42 x 5 mm)
Weight < 0.75 oz (< 21 g)
Antenna External dipole