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©2008 by RF Monolithics, Inc.

WIT910 - 4/10/08

DEVELOPER KIT

General Specifications

RF Frequency

902 to 927 MHz

Radio Certification

FCC Part 15.247, license free

Operating Range

Indoor: 1000’+ Outdoor: >20 miles with omni-directional antenna

Network Topology

Star network

Network Protocol

Dynamically Assigned TDMA

Error Detection and Correction

24 bit CRC and ARQ

Serial Data Interface

Asynchronous (RS-232) CMOS signals, 3.3v; 5v tolerant

I/O Data Rate

Up to 86.4 Kbps, software selectable

Channel Data Rate

172.8 Kbps

# of Frequency Channels

54

RF Bandwidth

460 KHz

Transmit Power Output

500mW, 100mW, 10mW, software selectable

Receiver Sensitivity

-103 dBm for 10-5 BER

Supply voltage

3.3 v to 10 v, 5 v nominal

Current Consumption

(500mW Transmit Power, 57.6Kbps I/O)

Remote

Sleep

250µA

Base

Continuous

125mA

Operation

Stby

43mA

Operation

Peak (Tx)

600mA

Typical

<100mA

Peak (Tx)

600mA

Size

80.2mm x 46.5mm x 8.6mm

Weight

35g

Operating Temperature

-40 C to 70 C

Humidity

20% to 90% (non-condensing)

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.

900MHz

Frequency

Hopping

Transceiver OEM

Module

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

WIT910