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M-2910 BlueJay Universal Data Transceiver
The M-2910 BlueJay
™
Wireless Data Transceiver is a self-contained short-range wireless communication
device (SRD) that is used for transferring serial communication data between Intelligent Electrical Device's
(IED’s) and computers hosting control software in an industrial environment. The M-2910 is based on an
Intersil direct sequence spread spectrum chip set that operates in the 2.4 GHz ISM band. The M-2910 design
meets the category for low power devices (LPDs) standard requirement for license-free operation.
Interface
The M-2910 is equipped with a dual-row, ten-pin (2 x 5) header connector utilizing a Serial Peripheral Interface
(SPI) link capable of up to 500 Kbps communication speed.
Data Transmission:
•
Error Detection – 16 bit CRC (10
-5
BER at –70dBm)
•
Maximum throughput – 1 Mbps RF, 2400 to 115.2 Kbps interface baud rate
Communication
The M-2910 conditions the data and transmits it over a half-duplex direct sequence spread spectrum radio
operating in the 2.4 GHz ISM band. The over-the-air data rate is 1 Mbps.
Transmit:
•
Frequency Range – 2400 MHz to 2483.5 MHz
•
Output Power – 30 mW
•
Modulation – DBPSK
•
Occupied Bandwidth – 20 MHz
•
Spurious Emissions – 50 mV/meter
•
Harmonic Emissions – 500 uV/meter
•
Spreading Method – Direct Sequence 11 bit code
•
Center Band – Carrier 2.450 GHz
Receive:
•
Sensitivity – -93 dBm
•
Selectivity – 25 MHz
The M-2910 BlueJay Wireless Data Transceiver must be used with a cable extension when the M-2910 is
mounted inside a metal enclosure. Antennas must be oriented in the same plane and located in view of the
corresponding BlueJay transceiver. Beckwith Electric cable extensions are available in 18", 6' and 13'
lengths (See Accessories).
■
NOTE
: For maximum range, all antennae must be oriented in the same plane.
Accessories
18" Cable Extension – Beckwith Electric Part No. 420-00395
6' Cable Extension – Beckwith Electric Part No. 420-00391
13' Cable Extension – Beckwith Electric Part No. 420-00392
