DEVELOPER KIT
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WIT910
Features:
• 900 MHz Frequency Hopping Spread
Spectrum technology
• 20+ mile range w/omni-directional
antennas
• 3.3 Volt operation
• Low power consumption
• Small size, light weight
• 172.8 Kbps channel data rate
• RS-232 style asynchronous interface
• FCC certified for unlicensed operation
Benefits:
• License-free operation
• Immunity to jamming and multipath
fading
• Supports long range applications
• Ideal for battery powered devices
• Supports large number of nodes
• Easy to integrate
• Shortens time to market
900MHz
Frequency
Hopping
Transceiver OEM
Module
Combining 900MHz frequency hopping technology and 500mW of transmit power, the WIT910 is the latest
in a long line of wireless OEM transceiver modules from RFM. With the same physical dimensions of the
industry-leading WIT2410 module, smaller than a business card and just 8.6mm thick, the WIT910 provides
immunity to both jamming and multipath fading. The WIT910 also provides a low power consumption mode
suitable for battery operation.
WIT910
General Specifications
RF Frequency
Radio Certification
Operating Range
Network Topology
Network Protocol
Error Detection and Correction
Serial Data Interface
I/O Data Rate
Channel Data Rate
# of Frequency Channels
RF Bandwidth
Transmit Power Output
Receiver Sensitivity
Supply voltage
Current Consumption
(500mW Transmit Power, 57.6Kbps I/O)
902 to 927 MHz
FCC Part 15.247, license free
Indoor: 1000’+ Outdoor: >20 miles with omni-directional antenna
Star network
Dynamically Assigned TDMA
24 bit CRC and ARQ
Asynchronous (RS-232) CMOS signals, 3.3v; 5v tolerant
Up to 86.4 Kbps, software selectable
172.8 Kbps
54
460 KHz
500mW, 100mW, 10mW, software selectable
-103 dBm for 10-5 BER
3.3 v to 10 v, 5 v nominal
Remote
Operation
Sleep
Stby
Typical
Peak (Tx)
250µA
43mA
<100mA
600mA
Base
Operation
Continuous
Peak (Tx)
125mA
600mA
Size
Weight
Operating Temperature
Humidity
80.2mm x 46.5mm x 8.6mm
35g
-40 C to 70 C
20% to 90% (non-condensing)
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
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WIT910 - 4/10/08
RFM [ RF MONOLITHICS, INC ]
