FCC ID: HSW-DM1810A Wireless Transceiver Module

DM1810-

916MB 916.50 MHz Transceiver Module

Base Station with Host Serial Interface

Compatible with Cirronet miniMESHTM Network Protocol

3 V, Very Low Current Operation

Ready-to-Use OEM Module The DM1810-916MB is the 916.50 MHz base station module in the DM1810 family of RF transceiv-

ers. The DM1810 family is designed for adding wireless mesh network connectivity to a wide range of monitoring and control systems. The DM1810-916MB is equipped with a serial I/O port to inter-

face a host microcontroller. Radio communications range in an open field environment is typically 600 meters/hop. The DM1810-916MB combines RFMs very low current ASH radio technology with low power microcontroller technology to achieve long battery life. This module is compatible with Cirronets miniMESHTM network protocol, which provides add-on plug-and-play multicast mesh network routing. The DM1810-916MB is certified for operation under FCC 15.247 and Canadian RSS 210 regulations. Absolute Maximum Ratings Rating All Input/Output Pins Except VIN Non-Operating Ambient Temperature Range Electrical Characteristics Value Units

-0.3 to +3.3

-40 to 85 V oC Characteristic Sym Notes Minimum Typical Maximum Units Operating Frequency Modulation Type RF Encoded Data Transmission Rate Average Receive Input Current, No External Power Supply Load Receiver Input Signal for 10-3 BER, 25 C Average Transmit Input Current, No External Power Supply Load Peak Transmit Input Current, No External Power Supply Load Peak Transmitter Output Power Bind Input Logic High Bind Input Logic Low Serial Port Data Rate Average Sleep Input Current, No External Power Supply Load Power Supply Input Voltage Range, -40 to +85 oC Power Supply Input Voltage Range, 0 to +85 oC fO IR ITA ITP PO ISA VIN VIN Regulated Power Supply Output Voltage, VIN 3.1 to 10 V VOUT Regulated Power Supply Voltage Ripple Relative Humidity Range, Non-Condensing RH 916.30 916.70 MHz OOK on BPSK Spreading Code 4.8 5.5

-100 15.75 10 9.6 60 3.0 kb/s mA dBm mA mA mW V V kb/s A V V Vdc mVP-P

32 0.45 10 10 10 90 2.4 3.1 2.6 10 1 Theory of Operation DM1810-916MB FCC Certification Figure 1 The major components of the DM1810-916MB include an RFM TR8100 ASH transceiver and a Microchip PIC16F689 microcontroller. The TR8100 operates on a frequency of 916.50 MHz, at a nominal output power of 10 mW. The 16F689 provides a 9.6 kb/s serial interface for communication with a host microcontroller. A compan-

ion interface board, the IM1800, is available with USB bridge circuitry to interface the DM1810-916MB to a host PC. The DM1810 includes two LEDs that indicate the modules operating mode. The DM1810-916MB firmware is based on Cirronets miniMESH network protocol, which utilizes time-syn-

chronized redundant routing to provide robust, deter-

ministic packet delivery though a network with up to 15 routers. Network configuration and maintenance fea-

tures are built into the miniMESH protocol, simplifying commissioning and operating logistics. The firmware also includes several sleep cycling methods for ex-

tended battery life operation. Please refer to the DM1810 Users Guide and the AN1810 series Application Notes for installation and application programming information. See Cirronets web site at www.Cirronet.com. The DM1810-916MB hardware has been certified for operation under FCC Part 15 Rules, Section 15.247. The antenna(s) used for this transmitter must be in-

stalled to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Notices and Labels 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 DM1810-916MB transceiver assembly, FCC ID: HSW-DM1810A. WARNING: This device oper-

ates under Part 15 of the FCC rules. Any modification to this device, not expressly authorized by Cirronet, Inc., may void the users authority to operate this de-

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, Canadian Department of Communications Industry Notice - IC: 4492A-DM1810A This apparatus complies with Health Canadas Safety Code 6 / IC RSS 210. To prevent radio interference to the licensed service, this device is intended to be operated indoors and away from windows to provide maximum shielding. Equipment (or its transmit antenna) that is installed outdoors may be subject to licensing. ICES-003 This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of In-

dustry Canada. Le present appareil numerique nemet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de Classe B prescrites dans le reglement sur le brouillage radioelectrique edicte par Industrie Canada. DM1810-916MB I/O Pad Descriptions Pin J1-1 J1-2 Name Description GND This pad is a signal and power supply ground. VIN This is the power supply input pad. The allowed input voltage range is 2.6 to 10 V. J1-3 VOUT J1-4 BIND J1-5 J1-6 J1-7

VOUT tracks 50 to 100 mV below VIN when VIN is in the range of 2.6 to 3.1 V. When VIN is in the range of 3.1 to 10 V, VOUT is regulated at 3.0 Vdc. Up to 10 mA can be supplied from this pad for powering external circuits such as thermistor-resistor networks. External circuitry must not impress more than 10 mVp-p ripple on the regu-

lated output voltage. This pad is connected to a logic input on the microcontroller, and is configured with a weak pull-up. When this pin is momentarily grounded to J1-1 or J1-10, the module is placed into the bind mode, allowing this module to be associated with other modules to form a network. This pad is unused in base station operation. Leave this pad electrically unconnected. This pad is unused in base station operation. Leave this pad electrically unconnected. This pad is unused in base station operation. Leave this pad electrically unconnected. J1-8 SERIAL RX This pad is connected to the modules serial data input (USART). Data to this pin is received at 9.6 kb/s, using 8 data bits, no parity, and one stop bit. The input voltage range on this pad is 0 to VOUT. Applying a voltage outside of this range may damage the module. J1-9 SERIAL TX This pad is connected to the modules serial data output (USART) through a 1 kilohm resistor, which provides short-circuit protection. Data from this pad is sent at 9.6 kb/s, using 8 data bits, no parity, and one stop bit. J1-10 J3-1 J3-2 J3-3 J4-1 J4-2 GND GND ANT GND D1 D2 This pad is a signal and power supply ground. This pad is a ground for the antenna port. This pad is the antenna port. This pad is a ground for the antenna port. This pad is the LED 1 signal. This pad is the LED 2 signal. CAUTION: Electrostatic Sensitive Device. Observe precautions when handling. 3 Figure 2 Note: Specifications subject to change without notice. Figure 3 Cirronet, 3079 Premiere Parkway, Suite 140, Duluth Georgia USA 30097, www.cirronet.com, Phone +1.678.684.2000, FAX+1.678.684.2001 4 file: dm1810_916b03.vp, 2007.07.21 rev

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