HN-250 Datasheet, PDF (1/3 Pages) RF Monolithics, Inc – 2.4GHz Frequency Hopping Wireless Data Modem

Features:
• 2.4 GHz Frequency Hopping Spread
Spectrum Technology
• 460 kb/s over the air data rate
• 115 kb/s RS232 data rate
• 230 kb/s USB data rate
• 32 Hopping Patterns
• FCC Certified and CE marked
• Integral 6 dB patch antenna or
external antenna options
• RS-232 asynchronous or USB serial
interface
Benefits:
• Exceptional immunity to multipath
fading and jamming
• Supports high speed applications
needing long range
• Co-location of multiple networks without
interference
• License-free application worldwide
• Cost-effective, simple installation
• Connects to PC Serial or USB ports
DEVELOPER KIT
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HN-250
HN-250U
2.4 GHz
Frequency
Hopping
Wireless Data
Modems
The HopNet 250 family of modems are versatile, low cost, multi-purpose 2.4 GHz frequency-hopping
wireless data modems. Built around the RFM WIT2450 radio, the HN-250, HN-250U, HN-254 and HN254U
have integral 6 dB patch antennas creating "single piece" modems. Also built around the WIT2450, the
HN250X and HN250UX are equipped with RF connectors instead of patch antennas to allow the use of high
gain and/or remote external antennas. Communication with the HN-250, HN250X and HN254 is through a
standard RS-232 interface at up to 115.2 kb/s. Communication with the HN-250U, HN250UX and HN-254U
is through a 230 kb/s USB interface. All HN series modems communicate over the air at 460 kb/s in both
point-to-point and point-to-multipoint networks.
HN-250
Specifications
Frequency Band
Licensing
Number of Channels
Hopping Patterns
RS232 Data Rates
USB Data Rate
RF Data Rate
Line-of-Site Range
RF Bandwidth
Modulation Type
Output Impedance
Network Protocol
Transmit Power
Receive Sensitivity
Power Requirements
HN-250/HN-250U
HN-250X/HN-250UX
HN-254/HN-254U
2401 - 2475 MHz
No license required under FCC Part 15, Canadian IC RSS-210 or ETSI 300.328
86
User configurable, 32 patterns (networks) available
Up to 115.2 kb/s Asynchronous
230 kb/s
460 kb/s
> 5 Miles
750 kHz
GFSK
50 ohms
Dynamically Assigned TDMA with ARQ
+10, +18 dBm or +24 dBm
-99 dBm for 10-5 BER
-93 dBm for 10-5 BER
-99 dBm for 10-5 BER
9 Vdc 160 mA typical, 750 mA peak
www.RFM.com E-mail: [e-mail]
©2009 by RF Monolithics, Inc.
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HN-250 - 9/16/09