AC4790-200A-485 Laird Technologies, AC4790-200A-485 Datasheet - Page 5

• Manufacturer Part Number: AC4790-200A-485
• Description: TXRX 900MHZ 3.3-5.5V FHSS 200MW
• Manufacturer: Laird Technologies
• Series: AeroCommr

Specifications of AC4790-200A-485

• Frequency: 902MHz ~ 928MHz
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FHSS, FSK
• Applications: AMR, Fire & Security Alarms, Telemetry
• Power - Output: 5mW ~ 200mW
• Sensitivity: -110dBm
• Voltage - Supply: 3.3V, 5V
• Current - Transmitting: 68mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: On-Board, Chip
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 900 MHz
• Interface Type: 20-pin mini connector
• Board Size: 49 mm x 42 mm x 5 mm
• Modulation: FHSS, FSK
• Security: 1 byte System ID, DES
• Operating Voltage: 3.3 V to 5.5 V
• Output Power: 200 mW
• Antenna: Integral and External Dipole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AC4790 T
The compact AC4790 900MHz transceiver can replace miles of cable in harsh industrial environments. Using field-proven
FHSS technology which needs no additional FCC licensing in the Americas, OEMs can easily make existing systems wireless
with little or no RF expertise.
A C 4 7 9 0 F E A T U R E S
O V E R V I E W
The AC4790 is a member of Laird Technology’s ConnexRF OEM transceiver family. The AC4790 is a cost effective,
high performance, frequency hopping spread spectrum transceiver; designed for integration into OEM systems
operating under FCC part 15.247 regulations for the 900 MHz ISM band.
AC4790 transceivers operate in a Masterless architecture. The unique feature of this architecture is its dynamic
Session extension and Collision Avoidance mechanism, which uses a proprietary scoring system to promote
contention free communication and ensure that each node has fair access to the network. This instinctive dynamic
peer-to-peer networking architecture enables several transceiver pairs to carry on simultaneous conversations on the
same network.
To boost data integrity and security, the AC4790 uses Laird Technology’s field-proven FHSS technology featuring
optional Data-Encryption Standards (DES). Fully transparent, these transceivers operate seamlessly in serial cable
replacement applications. Communications include both system and configuration data via an asynchronous TTL or
optional RS-485 serial interface for OEM Host communications. Configuration data is stored in an on-board EEPROM
E A S Y T O U S E
N E T W O R K I N G A N D S E C U R I T Y
• Masterless: True peer-to-peer, point-to-multipoint, point-to-point
• Retries and Acknowledgements
• API Commands to control packet routing and acknowledgement on a packet-by-packet basis
• Frequency Hopping Spread Spectrum for security and interference rejection
• Customizable RF Channel number and system ID
• Dynamic link analysis, remote radio discovery
• Software controlled sensitivity
• Hardware Protocol Status monitoring
• Two generic input and output digital lines and integrated ADC functions
• Continuous 76.8 kbps RF data stream
• Software selectable interface baud rates from 1200 bps to 115.2 kbps
• Low cost, low power and small size ideal for high volume, portable and battery powered
• All modules are qualified for Industrial temperatures (-40°C to 80°C)
• Advanced configuration available using AT commands
applications
RANSCEIVER
www.lairdtech.com\wireless
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