DM2200-916VM-1 - Murata Electronics North America

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DM2200-

916VM-1

The DM2200-916VM-1 is a 916.5 MHz transceiver module designed for wireless sensor network

applications. The module is equipped with seven general-purpose I/O ports that can be configured

as analog-to-digital converter inputs, digital inputs or digital outputs, plus three auxiliary digital I/O

ports. The communication range of the DM2200-916VM-1 in an “open field” environment is typically

600 meters/hop. The DM2200-916VM-1 combines RFM’s low-current ASH radio technology with

low-power microprocessor technology to achieve very long battery life. The DM2200-916VM-1 em-

ploys RFM’s VersaMESHTM protocol, which provides robust wireless mesh network routing, an inte-

grated multitasking operating system, and an extensive set of application support commands. The

DM2200-916VM-1 is manufactured with RoHS compliant materials and assemby methods.

Rating Value Units

All I/O Pins Except VIN -0.3 to +4.0 V

Non-Operating Ambient Temperature Range -40 to +85 oC

Absolute Maximum Ratings

•RFM VersaMESHTM Versatile Mesh Network Protocol

•Up to 600 meters Module to Module range

•3 V, Very Low Current Operation plus Sleep Mode

•Analog, Digital and Serial I/O Ports

•FCC 15.247 Certified

Electrical Characteristics

Characteristic Sym Notes Minimum Typical Maximum Units

Channel Center Frequency fO916.5 MHz

Modulation Type OOK on BPSK Spreading Code

RF Encoded Data Transmission Rate 9.6 kb/s

Receive Mode:

Average Input Current, 5 Vdc VIN Supply IR5.5 6.0 mA

Pulse Input Signal for 10-3 BER, 25 °C-100 dBm

Transmit Mode:

Peak Input Current, 5 Vdc VIN Supply ITP 36 38 mA

Peak Transmitter Output Power PO10 dBm

Average Sleep Mode Input Current, 5 Vdc VIN Supply IS65 70 µA

Analog Input Measurement Range (12-bit ADC) 0 VDD V

External Source Impedance to Analog Input 10 K

Digital Output Source Current, 1K Load 1 mA

Digital Output Sink Current, 1K Load 1.2 mA

Serial Port Default Data Rate 19.2 kb/s

Internal Power Supply Input Voltage Range 3.3 14.0 Vdc

External Power Supply Voltage Range VDD 2.9 3.7 Vdc

External Power Supply Voltage Ripple 10 mVP-P

Operating Ambient Temperature Range TA-40 +85 oC

916.50 MHz

Transceiver

Module

DEVELOPMENT KIT

(Info Click here)

DM2200-916VM-1 Theory of Operation

Major components of the DM2200-916VM-1 wireless

sensor network module include the TR8100 ASH

transceiver and the TI MSP430F148 microcontroller.

The TR8100 operates on 916.5 MHz, with a nominal

output power of 10 mW. The MSP430F148 can

operate referenced to either a 32.768 kHz or 6 MHz

crystal.

The MSP430F148 UART provides a serial interface

on connector J2. The microcontroller’s eight general-

purpose I/O pins, GP0 - GP7 are available on con-

nector J2, along with four auxiliary digital I/O pins,

CFG0 - CFG3 on J1. General-purpose I/O pin GP0 is

dedicated to measuring the value of the received

signal strength indicator (RSSI) circuit and should

always be set as an analog input. Auxiliary digital I/O

pin CFG3 is always configured as a digital input to

provide a firmware reset function (logic high for normal

operation). GP1 through GP7 and CFG0 through

CFG2 can be configured as required by the applica-

tion. The three LEDs on the transceiver module

display RF communication activity.

DM2200-916VM-1 operation is based on RFM’s

VersaMESHTM mesh network protocol, which supports

data and command transfers through both the serial

interface and the RF channel. See the DM2200 Sys-

tem User’s Guide and the DM2200 Software User’s

Guide for further details.

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56789104321

GND VIN

11 12 13 14

VREN VDD TD0 TD1 TW S TCK RST CFG0CFG1CFG2CFG3 GND

3 VD C

GRN

YEL

RED

TR 8100

ASH

Transceiver

RSSI

Low

Voltage

Reset

TXM O D

RXDATA

CFGDAT

CFGCLK

3 VD C Voltage

Regulator

D M 2 2 0 0 B lo c k D ia g ra m

GND

GP7

GP6

GP5

GP4

GP3

GP2

GP1

GP0/RSSI

RTS

CTS

TXD

RXD

GND

M SP 430F148

M icrocontroller

CFG

Figure 1

DM2200-916VM-1 FCC Certification

The DM2200-916VM-1 is certified for operation under

FCC Part 15 Rules, Section 15.247. When the

DM2200-916VM-1 is run from an off-board power

supply (applied to J1-4), the supply voltage must be

limited to a maximum of 3.7 Vdc, and the power

supply voltage ripple must not exceed 10 mVP-P.

FCC Labels and Notices

A clearly visible label is required on the outside of the

user’s (OEM) enclosure stating that this product con-

tains a DM2200-916VM-1 radio module, FCC ID:

TE6-DM2200A.

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.

WARNING: This device operates under Part 15 of the

FCC rules. Any modification to this device, not

expressly authorized by RFM, may void the user’s

authority to operate this device.

DM2200-916VM-1 Applications

There are two ways to use the DM2200-916VM-1 in

an application. The transceiver module can be used

with a companion application interface board, the

IM2200. The IM2200 has provisions for powering the

transceiver module from a USB cable, an external

unregulated DC supply such as a 5 Vdc “wall” trans-

former, an external regulated 3 Vdc power supply, or

an external battery. The IM2200 also provides the

choice of UART, RS232, or USB for a host computer

serial interface. In addition, the IM2200 includes cap-

tured-screw terminal strips for connecting analog in-

puts, digital logic inputs, digital logic outputs and form

C relay outputs. Refer to the IM2200 data sheet for

additional details.

The DM2200-916VM-1 can also be integrated into the

user’s own application board. The DM2200-916VM-1

pin descriptions are given in the Table on pages 4 and

5. The transceiver module pin-out locations are show

in Figure 2, and the PCB layout for the mating connec-

tors is shown in Figure 3.

The operating range of the DM2200-916VM-1 de-

pends critically on the antenna being located properly.

When using the standard DM2200-916VM-1 antenna

(part number 400-1687-001), care should be taken to

keep the antenna at least 0.5 inch away from the sides

of its enclosure. The enclosure must be made from a

plastic with low RF attenuation, such as fiberglass,

PVC or ABS. Note: other antenna configurations are

possible, but each new antenna configuration must be

added to the DM2200-916VM-1 FCC module certifica-

tion before deployment. Contact RFM for details.

The DM2200-916VM-1 enclosure should be mounted

so the antenna is at least 4 feet off the ground, and

ideally 6 or more feet off the ground.

The DM2200-916VM-1 has an on-board regulator in-

put on Pin J1-2. To use the on-board regulator, con-

nect J1-3 to J1-2 and apply a voltage to this

connection of at least 3.3 Vdc, but not greater than 14

Vdc, including ripple variations. When running from

the on-board regulator, up to 5 mA is available on J1-4

to operate external circuitry. Any external circuitry con-

nected to J1-4 must not induce more that 10 mVP-P rip-

ple on the regulated 3 Vdc at this pin.

The DM2200-916VM-1 can also be run from an

off-board regulated supply or a battery. In this case,

connect J1-3 to ground, leave J1-2 unconnected, and

apply the regulated supply or battery input to J1-4.

Note the input voltage range for J1-4 must be in the

range of 2.9 to 3.7 Vdc, with no more than 10 mVP-P

ripple.

Only pins J1-2 and J1-3 are rated to operate from a

supply voltage higher than 3.7 Vdc. Further, care must

be taken so that analog or logic inputs applied to the

transceiver module stay within the voltage range of 0

to VDD (voltage at J1-4). Applying a voltage outside of

the 0 to VDD voltage range to an analog or logic input

can damage the module.

The DM2200-916VM-1 has current limiting protection

resistors on most of the I/O pins. These limit the cur-

rent that a logic output can source or sink. Any

DM2200- 916VM pin defined as an output should be

used only to drive a high impedance load such as a

CMOS logic input or a MOSFET transistor.

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Pin Name Description

J1-1 GND This pin is connected to ground.

J1-2 VIN This pin is the input to the DM2200-916VM-1 on-board voltage regulator. The minimum input voltage to this pin

is 3.3 V, and the maximum input to this pin is 14.0 V.

J1-3 VREN This pin is the enable input for the DM2200-916VM-1 on-board regulator. To enable the on-board regulator,

connect this pin to J1-2. To disable the on-board regulator, connect this pin to ground.

J1-4 VDD

This pin is connected to the DM2200-916VM-1 positive power supply buss. When the module is powered from

the on-board regulator, this pin can provide up to 5 mA of current at 3.0 Vdc. Note this current adds to the re-

ceive, transmit and sleep currents listed in the specifications on Page 1. The external load must not impress

more than 10 mV peak -peak ripple on the supply buss. If the on-board regulator is disabled, the module can be

powered through this pin by an external 2.9 to 3.7 Vdc source (maximum ripple 10 mV peak-peak).

J1-5 TD0 This pin is only used for factory programming. It must be left unconnected in normal operation.

J1-6 TDI This pin is only used for factory programming. It must be left unconnected in normal operation.

J1-7 TWS This pin is only used for factory programming. It must be left unconnected in normal operation.

J1-8 TCK This pin is only used for factory programming. It must be left unconnected in normal operation.

J1-9 RST This pin is only used for factory programming. It must be left unconnected in normal operation (reset is CFG3).

J1-10 CFG0 This pin is an auxiliary digital I/O pin. The default configuration of this pin is a digital output.

J1-11 CFG1 This pin is an auxiliary digital I/O pin. The default configuration of this pin is a digital output.

J1-12 CFG2 This pin is an auxiliary digital I/O pin. The default configuration of this pin is a digital output.

J1-13 CFG3 This pin is a software reset pin. Logic high is normal operation. Logic low invokes software resets.

J1-14 GND This pin is connected to ground.

J2-1 GND This pin is connected to ground.

J2-2 RXD This pin is the serial data input (CMOS).

J2-3 TXD This pin is the serial data output (CMOS).

J2-4 CTS This pin is a serial data flow control input (CMOS).

J2-5 RTS This pin is a serial data flow control output (CMOS).

J2-6 GP0/RSSI This pin is an I/O pin dedicated to monitoring the RSSI circuit output. It is configured as an analog-to-digital

converter input. The RSSI signal can also be monitored externally at this pin.

J2-7 GP1

This pin is an I/O pin. The default configuration of this pin is a digital input with optional pulse counting capabil-

ity. A 24-bit register is maintained within the DM2200 to accumulate pulse counts. This input can count up to

10 pulses/second. This input supports interrupts, allowing pulse counting or alarm monitoring while the DM2200

is operating in a low current “sleep” mode.

J2-8 GP2 This pin is an I/O pin. The default configuration of this pin is a digital input. This input supports interrupts, allow-

ing alarm monitoring while the DM2200 is operating in a low current “sleep” mode.

J2-9 GP3 This pin is an I/O pin. The default configuration of this pin is a digital input.

J2-10 GP4 This pin is an I/O pin. The default configuration of this pin is a digital output.

J2-11 GP5 This pin is an I/O pin. The default configuration of this pin is a digital output.

J2-12 GP6 This pin is an I/O pin. The default configuration of this pin is an analog-to-digital converter input.

J2-13 GP7 This pin is an I/O pin. The default configuration of this pin is an analog-to-digital converter input.

J2-14 GND This pin is connected to ground.

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Pin Descriptions

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GND

CFG3

CFG2

CFG1

CFG0

RST

TCK

TW S

TD1

TD0

VDD

VREN

VIN

GND

GP7

GP6

GP5

GP4

GP3

GP2

GP1

GP0/RSSI

RTS

CTS

TXD

RXD

GND

D M 2200 Pin O ut

Figure 2

CAUTION: Electrostatic Sensitive Device. Observe precautions when handling.

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Note: Specifications subject to change without notice.

1.4

(3 5 .6 )

1.3

(3 3 .0 )

1.4

(3 5 .6 )

0.2

(5 .1 )

D M 2200 Interface C onnector

PC B Layout D etail

0.1

(2 .5 )

C onnectors are FC I E lectronics 66951-014 or equivalent

D im ensions in inches and (m m )

J1 J2

Figure 3