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DM1810-434MN

P1-P3P4-P5
www.RFM.com E-mail: info@rfm.com Page1of5
©2008 by RF Monolithics, Inc. DM1810-434MN - 4/17/08
DM1810-
434MN
Rating Value Units
All Input/Output Pins Except VIN -0.3 to +3.3 V
Non-Operating Ambient Temperature Range -40 to +85
o
C
Absolute Maximum Ratings
Electrical Characteristics
Characteristic Sym Notes Minimum Typical Maximum Units
Operating Frequency f
O
433.72 434.12 MHz
Modulation Type OOK
RF Encoded Data Transmission Rate 4.8 kb/s
Average Receive Input Current, No External Power Supply Load I
R
5.5 mA
Receiver Input Signal for 10
-3
BER, 25 °C
-101.5 dBm
Average Transmit Input Current, No External Power Supply Load I
TA
15.75 mA
Peak Transmit Input Current, No External Power Supply Load I
TP
28.5 mA
Peak Transmitter Output Power P
O
10 mW
Analog Input Measurement Range (10-bit ADC) 0 VOUT V
Analog Input Signal Source Impedance 10 K
Bind Input, Digital Input and Serial RX Logic High 2.4 V
Bind Input, Digital Input and Serial RX Logic Low 0.45 V
Digital Output and Serial TX Logic High, No Load 2.4 V
Digital Output and Serial TX Logic Low, No Load 0.3 V
The DM1810-434MN is the 433.92 MHz field node module in the DM1810 family of RF transceiv
-
ers. The DM1810 family is designed for adding wireless mesh connectivity to a wide range of moni
-
toring and control systems. The DM1810-434MN is equipped with a serial I/O port to interface to a
host microcontroller. The module also includes an analog input, a logic input, and a logic output for
monitoring and control. Radio communications range in an “open field” environment is typically 600
meters/hop. The DM1810-434MN combines RFM’s very low current ASH radio technology with low
power microcontroller technology to achieve long battery life. This module is compatible with RFM
miniMESH
TM
network protocol, which provides “plug- and-play” multicast mesh network routing.
The DM1810-434MN is certified for operation under ETSI I-ETS 300 220 regulations.
•
Field Node with Host Serial Interface
•
Compatible with RFM miniMESH
TM
Network Protocol
•
3 V, Very Low Current Operation
•
Ready-to-Use OEM Module
433.92 MHz
Transceiver
Module
DEVELOPMENT KIT
(Info Click here)
www.RFM.com E-mail: info@rfm.com Page2of5
©2008 by RF Monolithics, Inc. DM1810-434MN - 4/17/08
Electrical Characteristics
Characteristic Sym Notes Minimum Typical Maximum Units
Digital Output Source Current, 1K load 1.1 mA
Digital Output Sink Current, 1K load 1.2 mA
Serial Port Data Rate 1.2 9.6 kb/s
Average Sleep Input Current, No External Power Supply Load I
SA
60 µA
Power Supply Input Voltage Range, -40 to +85
o
C VIN 3.1 10 V
Power Supply Input Voltage Range, 0 to +85
o
C VIN 2.6 10 V
Regulated Power Supply Output Voltage, VIN 3.1 to 10 V VOUT 3.0 Vdc
Regulated Power Supply Voltage Ripple 10 mV
P-P
Relative Humidity Range, Non-Condensing RH 10 90 %
www.RFM.com E-mail: info@rfm.com Page3of5
©2008 by RF Monolithics, Inc. DM1810-434MN - 4/17/08
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.
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.
TXM O D
RX DATA
CNTRL1
CNTRL0
PIC
16F689
µP
D M 1810-434M N B lock D iagram
LED 1
LED 2
TR 7000
ASH
Transceiver
GND
SERIAL TX
SERIAL RX
DIGITAL OUT
ANALOG IN
DIGITAL IN
BIND
GND
VOUT
VIN
3 V
Reg
GND
GND
J1-1
J1-2
J1-3
J1-4
J1-5
J1-6
J1-7
J1-8
J1-9
J1-10
J3-2
J3-1
J3-3
RSSI
J4-1
J4-2
D1
D2
Figure 1
P1-P3P4-P5

DM1810-434MN

Mfr. #:
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Description:
RF TXRX MODULE ISM<1GHZ HELICAL
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New from this manufacturer.
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