AC4490-1x1
Overview
Laird 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.
Specifications
Part Number | Antenna Options | Antenna Type | Channels | Chipset (Wireless) | Compliance | Connector | Data Rate | Dimension (Height - mm) | Dimension (Length - mm) | Dimension (Width - mm) | Frequency Range (Max) | Frequency Range (Min) | Input Power | Logical Interfaces | Network Architecture | OS/Software | Operating Humidity | Output Power | Power Consumption | Power Consumption (Rx) | Power Consumption (Tx) | Product Type | Protocols | Receive Sensitivity | Security | Storage Humidity | System Architecture | Technology | Weight | Wireless Specification |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AC4490-1x1 End of Life (EOL) | Trace Pin | External | 32 Channels | TI CC1010 | None | SMT | 76.8 Kbps | 4.11 mm | 25.4 mm | 25.4 mm | 928 MHz | 902 MHz | 3.3 V | UART | AC4490 transceivers can operate in Point-to-Point | Configuration and Test Software | 10% - 90% | 10 mW (20 mW w/3 dBi gain antenna) | Up to 80 mA | 28 mA | 80 mA | Embedded Module | FHSS Wireless Protocol | -100 dBm | One-byte system ID | 10% - 90% | Hosted | Proprietary RF (9xx MHz) | < 0.5 oz (< 15 g) | 900 MHz FHSS |
Documentation
Name | Part | Type | Last Updated |
---|---|---|---|
Application Note - Enabling the Security Pane in the RAMP Configuration Utility | All | Application Note | 07/31/2024 |
Application Note - Repeater Set-up | All | Application Note | 08/01/2024 |
RoHS 3 - Bluetooth | All | Certification | 01/11/2024 |
Datasheet - AC4490 | All | Datasheet | 09/05/2024 |
User Guide - AC4490 | All | Documentation | 07/19/2024 |
User Guide - RAMP-AC Development Kit | All | Documentation | 08/08/2024 |
LWS-SPEC-ac44901X1 0209 | All | Documentation | 03/01/2019 |
RoHS 3 - RAMP ISM Modules | All | Certification | 09/23/2021 |
Is there a way to minimize power consumption and optimize battery life in my AC4490/AC4790 application?
Is there a way to minimize power consumption and optimize battery life in my AC4490/AC4790 application?
Because the AC4490/CL4490 and AC4790/CL4790 use completely different protocols with different architectures the options for reduction of power consumption are different. The AC4490/CL4490 uses a client/server architecture, while the AC4790/CL4790 uses a masterless architecture.
The AC4490/CL4490 support Sleep Walk Mode on client radios. This mode allows the OEM hosts to send a command to a Client radio which turns of the RF Circuitry. While in Sleep Walk Mode, the processor continues to actively calculate the frequency the Server should be located at, allowing the radio to remain synced with the Server while in Sleep Walk Mode. The Client can maintain this snychronization for up to two minutes (maximum). If the radio is in Sleep Walk Mode for longer than two minutes it will likely need to resync with the Server Beacon before it will be able to transmit data. For additional information on how to implement Sleep Walk Mode see the AC4490 User Guide: Sleep Walk Power Down and Sleep Walk Power-Down Wake Up in the Command Descriptions section.
Unfortunately, because of the masterless architecture of the AC4790/CL4790, these radios do not support any from of Sleep mode, as the radios need to be actively scanning for a beacon from a peer radio that needs to send data.
Additional considerations for maximizing battery life:
- Adding power control so you can programmatically disable VCC to the radio.
- Consider reducing the transmit power - test with lower transmit powers in sites typical of end user experience to see if this is an option.
- Where applicable, consider buffering data to create larger packets of RF data rather than sending several smaller packets.
- Holding the processor in Reset using the Reset pin will NOT enable a Low Power Mode
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.
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Distributors
Distributor | Phone Number | Region | Website |
---|---|---|---|
Arrow Electronics | 1-855-326-4757 +44 2039 365486 |
APAC, North America, South America, EMEA | Website |
Avnet | 1-480-643-2000 +44 1628 512900 |
APAC, North America, South America, EMEA | Website |
Braemac Australia, New Zealand, South East Asia | +61 2 9550 6600 +64 9 477 2148 |
APAC | Website |
Cal-Chip Connect | 1-215-942-8900 |
North America | Website |
DigiKey | 1-800-344-4539 |
North America, South America, APAC, EMEA | Website |
EBV Elektronik | EMEA | Website | |
Farlink Technology China, Hong Kong | +86 13266922199 |
APAC | Website |
Farnell | 1-800-936-198 +44 3447 11 11 22 |
EMEA | Website |
Future Electronics | 1-800-675-1619 1-514-428-8470 |
North America, South America, APAC, EMEA | Website |
Glyn | +49-6126-590-0 |
EMEA | Website |
Hy-Line Germany Only | +49 89 614 503 0 |
EMEA | Website |
Jetronic China, Hong Kong and Taiwan | 852-27636806 |
APAC | Website |
Laird Connectivity | 1-847-839-6925 +44 1628 858941 |
North America, South America, APAC, EMEA | Website |
M2M Germany | +49-6081-587386-0 |
EMEA | Website |
Martinsson | +46 8 7440300 |
EMEA | Website |
McCoy South East Asia | +65 6515 2988 |
APAC | Website |
Mouser | 1-800-346-6873 +44 1494 427500 |
North America, South America, APAC, EMEA | Website |
RS Components | +852-2421-9898 +44 3457-201201 |
North America, South America, APAC, EMEA | Website |
Ryoyo Japan | +81-3-3543-7711 |
APAC | Website |
Solsta UK Only | +44 (0) 1527 830800 |
EMEA | Website |
Supreme Components International India, South East Asia | +65 6848-1178 |
APAC | Website |
Symmetry Electronics | 1-866-506-8829 |
North America | Website |
Tekdis Australia and New Zealand | +61 3 8669 1210 |
APAC | Website |
Telsys | +972 3 7657666 |
EMEA | Website |
WPG | +44 1628 958460 |
EMEA | Website |