AC4790LR-200M Laird Technologies, AC4790LR-200M Datasheet - Page 2

• Manufacturer Part Number: AC4790LR-200M
• Description: TXRX 900MHZ 3.3-5.5V FHSS 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4790LR-200M

• Frequency: 902MHz ~ 928MHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: AMR, Fire & Security Alarms, Telemetry
• Power - Output: 200mW
• Sensitivity: -110dBm
• Voltage - Supply: 3.3V, 5V
• Current - Transmitting: 68mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: MMCX
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Innovative Technology
for a Connected World
SPECIFICATIONS
Parameter
Interface
Frequency (software selectable)
Modulation
Serial interface options
Serial interface data rate
Output power (w/ 3dBi antenna)
Current consumption (Tx/Rx)
Channels
Security
Voltage
Sensitivity (adjustable)
Range (line-of-sight)
Temperature
Humidity (non-condensing)
Dimensions
Weight
Antenna
*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, please contact Laird Technologies directly.
†
††
FLEXIBLE RF PROTOCOL
Laird Technologies’ RF232™ embedded transparent protocol simplifies the OEM’s integration process by providing 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 AC4790’s flexible “masterless” topology supports simple cable-replacement up to complex
peer-to-peer configuration. It allows you to broadcast to all radio modules or address packets to a specific destination using unique MAC
addresses embedded in each radio module.
Current consumption assumes 50% transmitter on-time.
Higher-gain antennas optional.
AC4790–200
20-pin mini connector
902-928 MHz (U.S)**
FHSS FSK
3.3V or 5V TTL
Up to 115.2 Kbps
5mW-200mW variable
68 mA / 30 mA typical
Up to 48 (U.S.)**
One-byte system ID, DES
3.3V-5.5V
-99 dB, -110dB
Up to 4 miles
(up to 6.5 km)
with external antenna
-40º to +80ºC
10% to 90%
1.90 x 1.65 x 0.20”
(49 x 42 x 5 mm)
< 0.75 oz (< 21 g)
Integral or external antenna
The details contained within the document are
subject to change. Download the product specification
from www.lairdtech.com/wireless for the most current
specification.
LWS-SPEC-AC4790 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 fitness, merchant-
ability, or suitability of any Laird Technologies materials or products for any specific 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: [e-mail]. Bluetooth
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.
††
AC4790–1000
20-pin mini connector
902-928 MHz (U.S)**
FHSS FSK
3.3V TTL
Up to 115.2 Kbps
5mW-1000mW variable
650 mA typical / 30mA typical
Up to 32 (U.S.)**
One-byte system ID, DES
pin 10: 3.3V-5.5V;
pin 11: 3.3V +/-3%
-99 dB, -110 dB
Up to 20 miles
(up tp 32 km)
with high-gain antenna
-40º to +80ºC
10% to 90%
1.90 x 1.65 x 0.20”
(49 x 42 x 5 mm)
< 0.75 oz (< 21 g)
External antenna
††
900MHz Radio Module
RF PROTOCOL MODES
a) Communication
b) Acknowledgement mode (ACK)
c) Ultra-fast sync time:
d) Sense adjust software-controlled RF
e) Random back-off
f) Network node discovery
g) Dynamic radio data table:
INTERFACE PROTOCOL
a) On-the-fly radio module configuration:
b) Raw data or transmit/receive API
c) Long range mode, enables sensitivity
d) A/D, generic digital I/Os
e) Variable baud rate
f) RF packet size, timeout control
g) Onboard temperature sensor
h) Handshaking, CTS/RTS
i) Session indicator
j) Error detection
k) Data encryption standard (DES)
API with hardware and/or software
ACK indication
desensitizer wards off interference
control
Unicast (one-to-one addressing)
Broadcast (one-to-multiple addressing)
Up to 25 simultaneous conversations
Intelligent self-extending session
time requires only one 25 msec sync
Retains data from up to
8 radio modules
Full API control
Destination address
RF transmit power
RF channel
Broadcast/addressed
Onboard CRC
Duplicate packet filtering
AC4790
®
is a trademark