WIT910M2 RFM, WIT910M2 Datasheet
WIT910M2
Manufacturer Part Number
WIT910M2
Description
RF Modules & Development Tools OEM 900MHz FHSS Mod 172.8 kb/s CSMA
Manufacturer
RFM
Datasheet
1.WIT910M2.pdf
(2 pages)
Specifications of WIT910M2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
WIT910M2 transceiver modules are designed to transmit serial data using highly robust 900 MHz
frequency hopping spread spectrum (FHSS) technology. WIT910M2 modules employ RFM’s
beacon-synchronized CSMA at an RF data rate of 172.8 kb/s to support a high number of remotes.
WIT910M2 transceivers are suitable for both point-to-point and point-to-multipoint networks. FHSS
technology provides strong immunity to both interference and multipath fading. The small size, light
weight and low power consumption of these transceiver modules make them suitable for a wide
variety of applications. WIT910M2 modules are certified for unlicensed operation in the USA,
Canada, Australia, Israel and New Zeland.
Features:
• Fast wireless serial data transmission
• Robust 900 MHz frequency hopping
• More than 20 mile outdoor range with
• 3.3 volt operation, low power
• Small size, light weight
• Certified for unlicensed operation in the
General Specifications
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
RF Frequency
Radio Certifications
Operating Range
Network Topologies
Network Protocol
Error Detection and Correction
Serial Data Interface
Serial Data Rate
Channel Data Rate
RF Bandwidth
Transmit Power Output
Receiver Sensitivity
Supply voltage
Current Consumption
Size
Weight
Operating Temperature
Humidity
spread spectrum technology
omni-directional antennas
consumption
USA and Canada
Number of Frequency Channels
29 dBm Transmit Power,
57.6 kb/s Serial Data Rate
902 to 927 MHz
FCC Part 15, Canadian RSS-210
Indoor - 1000 ft, Outdoor - more than 20 miles with omni-directional antenna
Point-to-point and point-to-multipoint (star)
High remote capacity CSMA with option for limited TDMA
24-bit CRC and ARQ
Asynchronous (UART) CMOS signals, 3.3 V, 5 V tolerant
up to 115.2 kb/s, software selectable
172.8 kb/s
54
460 kHz
10, 20, 27 or 29 dBm, software selectable
-103 dBm for 10-5 BER
3.3 to 10 V for up to 27 dBm transmit power, 5 to 10 V for 29 dBm transmit power
Remote
Operation: Standby
80.2 x 46.5 x 8.6 mm
35 g
-40 C to 70 C
20% to 90% (non-condensing)
Benefits:
• Suitable for point-to-point and point-to-
• Supports large number of nodes
• High immunity to interference and
• Supports long range applications
• Easy to integrate
• Ideal for battery powered devices
• RoHS Compliant
multipoint networks
multipath fading
Sleep
Receive
Transmit
250 µA
43 mA
100 mA
800 mA
Base Station
Operation:
Receive
Transmit
Shown with shield removed
125 mA
800 mA
Transceiver
WIT910M2
900 MHz
DEVELOPER KIT
(Info:
Module
FHSS
click here
WIT910M2 - 6/5/08
)
Page 1 of 2
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WIT910M2 Summary of contents
Page 1
... Certified for unlicensed operation in the USA and Canada WIT910M2 transceiver modules are designed to transmit serial data using highly robust 900 MHz frequency hopping spread spectrum (FHSS) technology. WIT910M2 modules employ RFM’s beacon-synchronized CSMA data rate of 172.8 kb/s to support a high number of remotes. ...
Page 2
... Long Operating Range With 29 dBm of transmit power and a receive sensitivity of -103 dBm, the WIT910M2 can achieve ranges in excess of 20 miles using 3 dBi omni-directional antennas. When long range isn’t needed, the WIT910M2, measuring just 80.2 x 46.5 x 8.6 mm and weighing just 35 grams powerful performer at low power, consuming only 100 mA at 3.3 volts. With the same size and mounting dimensions of the industry-leading WIT2410M4G module, the WIT910M2 can be used in place of the WIT2410M4G in existing designs, creating a 900 MHz product with little development effort ...