DM1810-434MN RFM, DM1810-434MN Datasheet - Page 3

• Manufacturer Part Number: DM1810-434MN
• Description: DM1810 433.92 MHZ MESH MODULE FI
• Manufacturer: RFM
• Series: DM1810r

Specifications of DM1810-434MN

• Frequency: 433.92MHz
• Data Rate - Maximum: 4.8kbps
• Modulation Or Protocol: OOK
• Applications: Wireless Mesh Networks
• Power - Output: 10mW
• Voltage - Supply: 2.2 V ~ 10 V
• Current - Receiving: 5.5mA
• Current - Transmitting: 15.75mA
• Data Interface: Pads for Pins
• Antenna Connector: On-Board, Spring
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 583-1031

Theory of Operation
The major components of the DM1810- 434MN
include an RFM TR7000 ASH transceiver and a Micro-
chip PIC16F689 micro- controller. The TR7000 oper-
ates on a frequency of 433.92 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 also available with
USB bridge circuitry to interface the DM1810-434MN
to a host PC. Three of the 16F689 I/O pins are config-
ured for external monitoring or control. Digital In is
configured as a logic input with a weak pull-up for
sensing a contact closure to a DM1810 ground pad.
Digital Out is configured a logic output. Analog In is
configured as a 10-bit analog- to-digital input. The
DM1810 includes two LEDs that indicate the module’s
operating mode.
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©2008 by RF Monolithics, Inc.
Figure 1
The DM1810-434MN firmware is based on RFM’s
miniMESH network protocol, which utilizes time-
synchronized redundant routing to provide robust,
deterministic packet delivery though a network with up
to 15 routers. Network configuration and maintenance
features are built into the miniMESH protocol, simplify-
ing commissioning and operating logistics.
The DM1810-434MN application programming inter-
face (API) provides straightforward, flexible support for
the serial port, ADC input, digital input and digital out-
put, including event messaging from field nodes. The
firmware also includes several sleep cycling methods
for extended battery life operation.
Please refer to the DM1810 User’s Guide and the
AN1810 series Application Notes for installation and
application programming information. See the RFM
web site at www.RFM.com.
DM1810-434MN - 4/17/08
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