DM2200-434VM RFM, DM2200-434VM Datasheet - Page 3

• Manufacturer Part Number: DM2200-434VM
• Description: 433.92 MHZ, 10 MW MESH MODULE, S
• Manufacturer: RFM
• Series: DM2200r

Specifications of DM2200-434VM

• Frequency: 433.92MHz
• Data Rate - Maximum: 9.6kbps
• Modulation Or Protocol: OOK
• Applications: Wireless Mesh Networks
• Power - Output: 10dBm
• Voltage - Supply: 2.9 V ~ 3.6 V
• Current - Receiving: 6mA
• Current - Transmitting: 36mA
• 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: 583-1040

DM2200-434VM Applications
There are two ways to use the DM2200-434VM in an
application. The transceiver module can be used with
a companion application interface board, the
IM2200-1. The IM2200-1 has provisions for powering
the transceiver module from a USB cable, an external
unregulated DC supply such as a 5 Vdc “wall plug”
trans- former, an external regulated 3 Vdc power sup-
ply, or an external battery. The IM2200-1 also pro-
vides the choice of UART, RS232, or USB for a host
computer serial interface. In addition, the IM2200-1
includes captured- screw terminal strips for connecting
analog inputs, digital logic inputs, digital logic outputs
and form C relay outputs. Refer to the IM2200-1 data
sheet for additional details.
The DM2200-434VM can also be integrated into the
user’s own application board. The DM2200-434VM 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 DM2200-434VM depends
critically on the antenna being located properly. When
using the standard DM2200-434VM antenna, 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.
The DM2200-434VM enclosure should be mounted so
the antenna is at least 4 feet off the ground, and ide-
ally 6 or more feet off the ground.
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The DM2200-434VM has an on-board regulator input
on Pin J1-2. To use the on-board regulator, connect
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 reg-
ulator, up to 5 mA is available on J1-4 to operate
external circuitry. Any external circuitry connected to
J1-4 must not induce more that 10 mV
regulated 3 Vdc at this pin.
The DM2200-434VM 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 mV
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 DM2200-434VM has current limiting protection re-
sistors on most of the I/O pins. These limit the current
that a logic output can source or sink. Any DM2200-
434VM 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.
DM2200-434VM - 4/18/08
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