Custom
Base Station or Router Capability
Compatible with RFM miniMESHTM Network Protocol
3 V, Very Low Current Operation
Ready-to-Use Assembly The CX2200 is a 916.5 MHz transceiver assembly designed for base station and router applications in wireless industrial sensor networks. The communications range of the CX2200 in an open field environment is typically 200 meters/hop. The CX2200 combines RFMs very low-current ASH radio technology with low-power microcontroller technology to achieve long battery life. The CX2200 is compatible with RFMs miniMESHTM network protocol, which provides add-on plug-and-play multicast mesh network routing. The CX2200 transceiver assembly is certified for operation under FCC 15.249 regulations. CX2200 916.50 MHz Transceiver Assembly Absolute Maximum Ratings Rating All Input/Output Pins Non-Operating Ambient Temperature Range Electrical Characteristics Value Units
-0.3 to +4.0
-50 to +100 V oC Characteristic Sym Notes Minimum Typical Maximum Units 916.30 916.70 MHz OOK 4.8 4
-98 45,000 19.2 kb/s mA dBm mA V/m kb/s Vdc oC 13.5 14
+85 3.1
-40 Operating Frequency Modulation Type Encoded Data RF Transmission Rate Receive Mode:
Transmit Mode:
Average Input Current, 3 Vdc Supply OOK Input Signal for 10-3 BER Peak Input Current, 3 Vdc Supply Peak Radiated Field Strength (FCC OP-1) Serial Port Data Rate Power Supply Input Voltage Range Operating Ambient Temperature Range fO IR ITP PO VIN TA 1 Figure 1 Theory of Operation The major components of the CX2200 transceiver as-
sembly include the CM2200 transceiver module and the CI2200 interface module. The CM2200 includes a TR1000 ASH transceiver and a Microchip 16LF876A microcontroller. The TR1000 operates on a frequency of 916.5 MHz, at a nominal output power of 0.5 mW. The CM2200 includes an insulated wire antenna, which should be set straight and perpendicular to the CM2200 circuit board. The CM2200 also includes three LEDs that indicate the transceivers operating modes. The CI2200 provides a choice of RS232 or USB to in-
terface to a host computer. USB drivers for various host computer operating systems can be obtained at www.silabs.com (CP2101). The CI2200 also provides regulated 3 Vdc for operating its circuitry and the CM2200 transceiver module. The positions of the set-up jumper blocks for RS232 operation are shown in Figure 2, and the positions of the set-up jumper blocks for USB operation are shown in Figure 3. RS232 operation requires external power, which is in-
put on connector J4. The CX2200 is powered directly from the USB connector when using the USB inter-
face. There are two LEDs on the CI2200 interface module. LED D1 indicates that regulated 3 Vdc is present, and the LED D2 indicates an active USB connection. The CX2200 is compatible with RFMs miniMESHTM network protocol, which provides add-on plug-and-
play multicast mesh network routing to improve com-
munication range and robustness. FCC Labels and Notices This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference re-
ceived, including interference that may cause unde-
sired operation. A clearly visible label is required on the outside of the users (OEM) enclosure stating that this product con-
tains a CX2200 transceiver assembly, FCC ID: TE6-
CX2200. WARNING: This device operates under Part 15 of the FCC rules. Any modification to this device, not ex-
pressly authorized by RF Monolithics, Inc., may void the users authority to operate this device. 2
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Pin Descriptions Pin Name J2-2 TXD This pin is the RS232 serial output. Data from this pin is transmitted at 19.2 kb/s, using 8 data bits, no parity, and one stop bit. This pin is inactive in the router mode. Description J2-3 J2-5 J5-1 J5-2 J5-3 J5-4 J5-5 J5-6 J4-1 J4-2 RXD This pin is the RS232 serial input. Data to this pin must be sent at 19.2 kb/s, using 8 data bits, no parity, and one stop bit. This pin is inactive in the router mode. GND This is the RS232 ground. VBUS This pin is USB power. D-
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GND GND GND VIN This pin is USB D-. This pin is USB D+
This pin is USB ground. This pin is USB ground. This pin is USB ground. This pin is the power supply input. The minimum input voltage to this pin is 3.1 V, and the maximum input to this pin is 14.0 V. GND This pin is power supply ground. 3 Figure 2 4
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