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DNT2400 - 08/18/09
3.0 DNT2400 Hardware
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Figure 3.0.1
The major components of the DNT2400 include a 2.4 GHz FHSS transceiver and a low current 32-bit
microcontroller. The DNT2400 operates in the 2.4 GHz ISM band. The module includes nine frequency
subbands and 37 total frequency channels to support the various 2.4 GHz frequency allocations used
throughout the world. The DNT2400 has three selectable RF output power levels: 1, 10, and 63 mW.
Also, there are four selectable RF transmission rates: 38.4, 115.2, 200 and 500 kb/s. The DNT2400
includes a low-noise receiver preamplifier and a high efficiency transmitter amplifier, providing excellent
range in outdoor applications.
The DNT2400 provides a variety of hardware interfaces. There are two UART serial ports, one for data
and a second for diagnostics. The data port supports standard baud rates from 1.2 to 460.8 kb/s, with the
diagnostic port fixed at 38.4 kb/s. The module also includes three 10-bit ADC inputs, two 8-bit PWM
outputs, and six general-purpose digital I/O ports. Four of the digital I/O ports support an optional inter-
rupt-from-sleep mode when configured as inputs. The radio is available in two mounting configurations.
The DNT2400C is designed for solder reflow mounting, and the DNT2400P is designed for plug-in con-
nector mounting.
