Item # AC4790-1 x 1-10, AC4790-1X1 - 900MHz Radio Module on Laird Technologies Laird Technologies - Item # AC4790-1 x 1-10, AC4790-1X1 - 900MHz Radio Module
  Search Catalog  
All Categories > Wireless M2M & Telematics Solutions > Proprietary Radio Modules > 910MHz Modules > AC4790-1X1 - 900MHz Radio Module > Item # AC4790-1 x 1-10  
Request Information

Item # AC4790-1 x 1-10, AC4790-1X1 - 900MHz Radio Module


Stock Locator Button

  • Smallest complete transceiver on the market.
  • High data rate: Up to 115.2 Kbps.
  • Easiest installation: protocol included.
  • Durable in -40°C to +80°C industrial temps.
  • Low power for battery-operated products.
  • Less than $20 in volume.

Tiny 1x1-inch 900 MHz modules utilize Laird Technologies' "masterless" protocol, enabling communication with any other in-range transceiver for true peer-to-peer operation. Despite their amazing size, 1x1s can replace a mile of cable even in harsh industrial conditions.

Thanks to its RF232 embedded protocol, 1x1 integration is painless. OEMs simply solder the transceivers and antennas into place, then power-on. All frequency hopping, synchronization, and RF system data transmission/reception is performed in the firmware.

1x1's standard TTL serial interface provides bi-directional communication in point-to point, point-to-multipoint and multipoint-to-multipoint networks. A number of on-the fly control commands accommodate varying wireless applications.

1x1 is the solution for OEMs working with tight space and limited resources. Popular concerns such as size, speed, range, power, reliability and cost are all covered here - making wireless practical for almost any high-volume application.

Tiny AC4790-1x1 transceivers put the power of a masterless protocol into the smallest, most cost-sensitive wireless applications. Despite their amazing size, 1x1 modules can communicate with any other in-range 1x1 transceiver, even in harsh industrial conditions, allowing for virtually infinite range.

AC4790-1x1’s RF protocol features a dynamic addressing scheme, which simplifies node-to-node communication. The transceiver identifies the most efficient transmission path, so OEMs can design routing sequences that optimize the RF network. This makes 1x1 ideal for a wide variety of industrial applications that must rely on smooth, constant data flow.

Using field-proven 900 MHz FHSS technology that needs no additional site licensing (The 900MHz band is approved in the Americas and Australia as an unlicensed spectrum subject to approval by device.), 1x1s reject interference, enable co-located system operation, increase output power and maintain data integrity. And integration is painless. OEMs simply solder the transceivers and antennas into place, then power-on. Hopping, synchronization and system data TX/RX is performed in the firmware.



1x1-Transceiver

larger image

AC4790-1x1-Actual-Size

larger image



Specifications · Performance · Radio Frequency · Environmental · Physical · Applications · Flexible RF Protocol · Protocol Features

Specifications

Manufacturer

Laird Technologies

Antenna

Integrated and External Dipole


Performance

Interface

SMT

Serial Interface

3V TTL

Max. Serial Interface Data Rate

115.2 Kbps

Power Consumption (Tx)1

80 mA

Power Consumption (Rx)2

28 mA

Channels (for Creating Independent Networks)3

Up to 48 (North America)

Security

One-byte system ID
1 Power consumption assumes 50% transmitter on-time.
2 Power consumption assumes 50% transmitter on-time.
3 For products and specifications suited to non-U.S. countries (e.g. Australia and Europe), please contact AeroComm directly.


Radio Frequency

Frequency Band (Software-Selectable)1

902 to 928 (North America) MHz

Modulation

FHSS FSK

Variable Output Power

0 to 10 mW

Voltage

3.3V nominal ±2%, ±30mV

Sensitivity (at full RF Data Rate)

-99 dBm

Max. Range (Typical, Depends on Antenna and Area)

1 mile
1.6 km
1 For products and specifications suited to non-U.S. countries (e.g. Australia and Europe), please contact AeroComm directly.
The 900MHz band is approved in the Americas and Australia as an unlicensed spectrum subject to approval by device.


Environmental

Temperature

-40 to +80 °C

Humidity

10% to 90%


Physical

Dimensions

1.0 x 1.0 x 0.20 inches
2.6 x 2.6 x 0.6 cm

Integration

Hand-solder or surface-mount with automatic pick-and-place equipment

Weight

< 0.5 oz
< 15 g


Applications
Commercial Buildings
  • Security & fire alarms
  • Lighting controls
  • Surveillance
  • Building automation
  • HVAC controls
Field Surveillance
  • SCADA
  • Oil & gas
  • Water & wastewater
  • Tank monitoring
  • Activity alarms
Utilities Management
  • Automatic meter reading
  • Load profiling, forecasting
  • Data management
  • Tampering alerts
  • Real-time support
Recreation Areas
  • Golf cart tracking
  • Score keeping
  • Order entry
  • Irrigation systems
  • Grounds maintenance
Fleet Telemetry
  • Vehicle tracking
  • Cargo data
  • Weigh scales
  • Maintenance logs
  • Mapping



Flexible RF Protocol
AeroComm’s RF232™ embedded transparent protocol simplifies the OEM’s integration process by allowing for drop-in installation. As each transceiver receives raw data, it manages over-the-air protocol to assure successful communication. Headers, data packet length, and CRCs are not needed.

AC4790’s flexible "masterless" topology supports simple cable-replacement up to complex peer-to-peer configurations. Broadcast communication to all transceivers or address packets to a specific destination using unique MAC addresses embedded in each transceiver.



Protocol Features
RF Protocol Modes
  • Communication
    Unicast (one-to-one addressing)
    Broadcast (one-to-many addressing)
  • Acknowledgement mode (ACK)
    API with hardware and/or software
    ACK indication
  • Ultra-fast sync time
    Up to 25 simultaneous conversations
    Intelligent self-extending session time requires only one 25 m/sec sync
  • Remote over-the-air configuration
  • Sensadjust
    Software-controlled RF desensitizer wards off interference
  • Random back-off
  • Network node discovery
  • Dynamic radio data table
    Retains data from up to 8 transceivers
Interface Protocol
  • On-the-fly transceiver configuration
    Full API Control
    Destination address
    RF transmit power
    RF Channel
    Broadcast/addressed
  • Raw data or transmit/receive API
  • Long range mode
    Enables sensitivity control
  • A/D, D/A generic I/Os
  • Variable baud rate
  • RF packet size, timeout control
  • Onboard temperature sensor
  • Handshaking
    CTS/ RTS
  • In-range indicator
  • Error detection
    Onboard CRC
    Duplicate packet filtering
  • Data encryption standard (DES)



    Download PDF Download PDF  
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

 MORE IMAGES 

· Architecture


 DOWNLOADS 

 width= Datasheet
(COM)


Request Information