Innovative Technology
for a Connected World
AC4424
2.4GHz Radio Module
FLEXIBLE RF PROTOCOL
Laird Technologies’ embedded transparent protocol simplies the OEM’s integration process by utilizing drop-in installation. As each
radio module receives raw data, it manages the 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 conguration. It allows you to
broadcast to all radio modules or address packets to a specic destination using unique MAC addresses embedded in each module.
PROTOCOL MODES
• Communication
Unicast (one-to-one addressing)
Broadcast (one-to-multiple addressing)
• Module conguration:
Destination address
Co-located servers
RF channel
Broadcast/addressed
• Variable baud rate
• RF packet size, timeout control
• Handshaking, CTS/RTS
• In-range indicator
• Auto-channel
• Error detection:
Onboard CRC
Duplicate packet ltering
• Random back-off
SPECIFICATIONS
Parameter AC4424–10 AC4424–100 AC4424–200
Interface 20-pin mini connector 20-pin mini connector 20-pin mini connector
Frequency 2.402 - 2.478 GHz 2.402 - 2.478 GHz 2.402 - 2.478 GHz
Modulation FHSS FSK FHSS FSK FHSS FSK
Serial interface options 3V or 5V TTL 3V or 5V TTL 3V or 5V TTL
Serial interface data rate Up to 192 kbps Up to 192 kbps Up to 192 kbps
Output power 10mW 100mW 200mW
Current consumption** (Tx/Rx) 115/85 mA 160/85 mA 235/85 mA
Channels 88 channels U.S./Canada; 88 channels U.S./Canada; 88 channels U.S./Canada;
40 channels Europe 40 channels Europe 40 channels Europe
Security One-byte system ID One-byte system ID One-byte system ID
Voltage 5 V nominal +/- 2% 5 V nominal +/- 2% 5 V nominal +/- 2%
+/- 50 mV ripple +/- 50 mV ripple +/- 50 mV ripple
Sensitivity -90 dB @ full RF data rate -90 dB @ full RF data rate -90 dB @ full RF data rate
Range Up to 0.5 mile (1 km) Up to 1 mile (1.6 km) Up to 2 miles (3.2 km)
Temperature -40º to +80ºC -40º to +80ºC -40º to +80ºC
Humidity (non-condensing) 10% to 90% 10% to 90% 10% to 90%
Dimensions 1.65 x 2.65 x 0.20 inches 1.65 x 2.65 x 0.20 inches 1.65 x 2.65 x 0.20 inches
(4.2 x 6.7 x 0.5 cm) (4.2 x 6.7 x 0.5 cm) (4.2 x 6.7 x 0.5 cm)
Weight < 0.7 oz (< 20 g) < 0.7 oz (< 20 g) < 0.7 oz (< 20 g)
Antenna MMCX receptacle MMCX receptacle MMCX receptacl
or Integrated Ceramic
** Current consumption assumes 50% transmitter-on time.
LWS-SPEC-AC4424 0209
Any information furnished by Laird Technologies and its agents is believed to be accurate and reliable. Responsibility for the use and application of Laird Technologies materials
rests with the end user since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the tness, merchant-
ability, or suitability of any Laird Technologies materials or products for any specic or general uses. Laird Technologies shall not be liable for incidental or consequential
damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies terms and conditions of sale in effect from time to time, a copy of which will
be furnished upon request. For further information please visit our website at www.lairdtech.com. Alternatively contact: wirelessinfo@lairdtech.com. Bluetooth
®
is a trademark
owned by Bluetooth SIG, Inc., USA and licensed to Laird Technologies.
© 2009 All Rights Reserved. Laird Technologies is a registered trademark of Laird Technologies, Inc.
The details contained within the document are subject to change. Download the product specication
from www.lairdtech.com/wireless for the most current specication.
