User Manual

Model SM240 Data Sheet · Document Number 430154-01A · Page 5 of 12
©2012 Synapse Wireless, Inc. · 500 Discovery Drive, Huntsville, AL 35806 · 256-852-7888 · synapse-wireless.com
Figure 1.0 Block diagram showing the major subsystems comprising the SM240
1.1 Specifications
Table 1.0. SM240 Specifications
Performance
Outdoor LOS Range
Up to 2.5 miles at 250Kbps
Transmit Power Output 18.4 dBm
RF Data Rate 250Kbps, 500Kbps, 1Mbps, 2Mbps
Receiver Sensitivity -107 dBm (1% PER)
Power Requirements
Supply Voltage 2.7 - 3.6 V
Transmit Current (Typ@3.3V) 80mA
Idle/Receive Current (Typ@3.3V) 20mA
Power-down Current (Typ@3.3V) 1.6uA
General
Frequency ISM 2.4 GHz
Spreading Method Direct Sequence (DSSS)
Modulation O-QPSK
Dimensions 1.404" x 0.592"
Operating Temperature - 40 to 85 deg C.
Antenna Option
F- antenna
Networking
Topology SNAP
Error Handling Retries and acknowledgement
Number of Channels 16
Available I/O
UARTS with HW Flow Control 2 Ports - 8 total I/O
GPIO 20 total; 7 can be analog-in with 10bit ADC
Agency Approvals
FCC Part 15.247 FCC ID: U9O-SM240
Industry Canada (IC) IC: 7084A-SM240