Compact AC4490 900MHz transceivers can 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 sys-
tem operation, increase output power and maintain data integrity.
AC4490s feature drop-in installation and a number of on-the-fly control com-
mands, providing OEMs with a versatile interface for any application. They
can be used as direct wire replacements, requiring no special host software
for communication. All frequency hopping, synchronization and RF system
data transmission/reception is performed by the transceiver.
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Lowest cost
one-watt module available.
AC4490 modules are socket-compatible with AeroComm’s 2.4GHz AC4424
transceivers, enabling OEMs to design once and subsequently interchange
radios to accommodate new markets, regulations and environments.
Developer tools and integration support back every transceiver line. Let
AeroComm help you find the best fit for your application.
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“Long
range” mode
enables 40 miles.
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High 900MHz data rate:
115.2 Kbps.
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Small form factor:
1.65 x 1.9 inches.
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Operates in
–40ºC to +80ºC
temperatures.
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Variable output power:
5mW to 1000mW.
Recreation Areas
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Golf cart tracking
Score keeping
Order entry
Irrigation systems
Grounds maintenance
PARAMETER
Interface
Frequency
(software selectable)
Modulation
Serial interface options
Serial interface data rate
Output power
(w/ 3dBi antenna)
Power consumption
Channels
Security
Voltage
Sensitivity
Range
Temperature
Humidity
(non-condensing)
Dimensions
Weight
Antenna
††
AC4490–200
20-pin mini connector
902-928 MHz (U.S)**
FHSS FSK
3V or 5V TTL
Up to 115.2 Kbps
5mW-200mW variable
68 mA typical
Up to 48 (U.S.)**
One-byte system ID, DES
3.3V-5.5V
-110 dB in “long range” mode
Up to 4 miles (6.5 km)
-40
o
to +80ºC
10% to 90%
1.90 x 1.65 x 0.20 inches
(49 x 42 x 5 mm)
< 0.75 oz (< 21 g)
Integral and external dipole
AC4490–1000
20-pin mini connector
902-928 MHz (U.S)**
FHSS FSK
3V TTL
Up to 115.2 Kbps
5mW-1000mW variable
650 mA typical
Up to 32 (U.S.)**
One-byte system ID, DES
pin 10: 3.3V-5.5V
pin 11: 3.3V +/-3%
-110 dB in “long range” mode
Up to 20 miles (32 km)
-40
o
to +80ºC
10% to 90%
1.90 x 1.65 x 0.20 inches
(49 x 42 x 5 mm)
< 0.75 oz (< 21 g)
External dipole
Utilities Management
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Automatic meter reading
Load profiling, forecasting
Data management
Tampering alerts
Real-time support
Commercial Buildings
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Security & fire alarms
Lighting controls
Surveillance
Building automation
HVAC controls
Fleet Telemetry
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Vehicle tracking
Cargo data
Weigh scales
Maintenance logs
Mapping
Field Surveillance
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SCADA
Oil & gas
Water & wastewater
Tank monitoring
Activity alarms
* The 900MHz frequency band is approved in the Americas and Australia as an unlicensed spectrum subject to approval by device.
** For products and specifications suited to non-U.S. countries (e.g. Australia and Europe), please contact AeroComm directly.
†
††
Although AC4490 radios will not talk to AC4424 radios, socket-compatibility allows for interchanging the modules network-wide.
Power consumption assumes 50% transmitter on-time.
Flexible RF Protocol
AeroComm’s 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.
RF232 supports simple cable-replacement to complex peer-
to-peer configurations. Broadcast communication to all trans-
ceivers or address packets to a specific destination using
unique MAC addresses embedded in each transceiver.
AC4490, Actual Size
Protocol Features
R F PROTOCOL MODES
a) Communication
Unicast (one-to-one addressing)
Broadcast (one-to-many addressing)
b) Acknowledgement mode (ACK)
API with hardware and/or software ACK indication
c) One-beacon mode
d) Dynamic radio data table
Retains data from up to 12 transceivers
RF Architectures
Placing Orders
Select features from the list below to identify the
appropriate part number. More product lines are
available for industrial & commercial applications.
Contact AeroComm Sales for details: toll-free
1-800-492-2320, email sales@aerocomm.com.
Point-to-point
PART NUMBERS
AC4490-200M
900MHz transceiver, 3.3V-5.5V, TTL serial*,
5–200mW, –40º to +80º C, MMCX antenna
AC4490-200A
900MHz transceiver, 3.3V-5.5V, TTL serial*,
5–200mW, –40º to +80º C, integral antenna
AC4490-1000M
900MHz transceiver, 3.3V, TTL serial*,
5–1000mW, –40º to +80º C, MMCX antenna
AC4490-1x1
See AC4490-1x1 datasheet
INTERFACE PROTOCOL
a) On-the-fly transceiver configuration
Destination address
RF transmit power
Co-located servers
RF Channel
Broadcast/addressed
b) Raw data or transmit/receive API
c) 9-bit serial interface mode
d) Long range mode
Enables sensitivity control
e) Generic A/D, D/A generic I/Os
f) Variable baud rate
g) RF packet size, timeout control
h) Onboard temperature sensor
i) Handshaking
CTS/RTS
Full modem-mode available
j) In-range indicator
k) Error detection
Onboard CRC
Duplicate packet filtering
l) Data encryption standard (DES)
Point-to-multipoint
Multipoint-to-multipoint
* RS485 interface available.
Peer-to-peer
Microcontroller MCU
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