AC4490 Series
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Proprietary 900 MHz Long Range FHSS module with external antenna connector, 750 mW


Antenna Options
External antenna with MMCX plug
Antenna Type
2 Channel Sets
Chipset (Wireless)
TI CC1010
FCC / IC Modular Approval
20 Pin Interface Connector
Data Rate
76.8 Kbps
Dimension (Height - mm)
5.08 mm
Dimension (Length - mm)
48.26 mm
Dimension (Width - mm)
41.91 mm
56-bit Data Encryption Standard (DES)
Frequency Range (Max)
928 MHz
Frequency Range (Min)
902 MHz
Input Power
VCC: 3.3 - 5.5 V -50 mV ripple VPA: 3.3 -3%, -100 mV ripple
Logical Interfaces
Network Architecture
AC4490 transceivers can operate in Point-to-Point, Point-to-Multipoint, Client-Server, or Peer-to-Peer architecture.
Configuration and Test Software
Operating Humidity
10% - 90%
Output Power
743 mW typical Conducted (no antenna), 1486 mW typicalEIRP (3 dBi gain antenna)
Power Consumption (Rx)
100% Rx: 30 mA
Power Consumption (Tx)
100% Tx: 1300 mA
Product Type
Embedded Module
FHSS Wireless Protocol
Up to 40 miles
Receive Sensitivity
-110 dBm
One byte System ID. 56-bit DES encryption key
Storage Humidity
10% - 90%
System Architecture
Proprietary RF (9xx MHz)
< 0.75 oz (< 21 g)
Wireless Specification
900 MHz FHSS

Buy Now

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How do I return my ConnexLink Radio, AC4490/AC4790, RM024, LT1110 radio to its default settings?

In order to return the radio to its default EEPROM settings it is necessary to load a previously saved file containing the default settings to the Configuration Utility and write the changes to the radio. If you did not save the default settings to a file, prior to changing the settings, please contact Laird Support through the Support Portal to request a file with the default settings for the purpose of restoring the radio to its default configuration.

The "Show Default" settings view in the Laird Configuration and Test Utility should NEVER be written to the radio, as these are for reference ONLY. Writing these to the radio can result in corrupting the radio to a point where it can become unrecoverable. After viewing the "Show Default" settings, the radio settings should always be READ again, prior to writing any changes to the radio, to prevent this from occurring.

Can I get true full duplex operation from the RAMP products (RM024, AC4490, AC4790, LT1110, CL4490, CL4790)?

In the Laird RAMP line of products there is a feature called Full Duplex that leads one to believe they can talk upstream and downstream simultaneously. This is not the case, Full Duplex in the RAMP products gives a dedicated slot within the frame to the Server or Initiator and the second slot or next frame to the Client or Responder. 

What is difference between AC4490/AC4790 product part numbers that end with -01, -02, -03?

The -01, -02, -03 at the end of the part number signifies the version of firmware loaded to the module.
These firmware versions are Regionally significant and apply certified for the regions listed:



Part Number Certification Region
AC4490-1000M-01 FCC IC/North America
AC4490-1000M-02* RCM/C-Tick* Australia
AC4490LR-1000M-01 Long Range FCC/IC North America
AC4490LR-1000M-02* RCM/C-Tick* Australia*
AC4490LR-1000M-03 Anatel Brazil
AC4790-1000M-01 FCC/IC North America
AC4790-1000M-02* RCM/C-Tick* Australia*
AC4790LR-1000M-01 FCC/IC North America
AC4790LR-1000M-02* RCM/C-Tick* Australia*
CL4490-1000-232-01 (RS232) FCC/IC North America
CL4490-1000-232-03 (RS232) Anatel Brazil
CL4490-1000-232-SP-01 (RS232 - Starter Pack - Includes 2 units) FCC/IC North America
CL4490-1000-485-03 (RS485) Anatel Brazil
CL4490-1000-485-01 (RS485) FCC/IC North America
CL4490-1000-485-SP-01 (RS485 - Starter Pack - Includes 2 units) FCC/IC North America

*RMC/C-Tick Certified modules/ConnexLink must be purchased through Tekdis as they hold the certification.