Data Sheet

SHENZHEN FIRST TECHNOLOGY CO.,LTD FST50_04E WIFI DataSheet
http：// www.fst-tech.com
2
INTEGRATION INSTRUCTIONS
FCC Rules
The FST50_04E is an Wi-Fi 2.4G Module with digitally modulated systems using an DSSS and OFDM
modulation. It operates on the 2412-2462 MHz band and, therefore, is within U.S. FCC part 15.247
standard.
Modular installation instruction
1, FST50_04E Integrates high-speed GPIO and peripheral interface. Please pay attention to the
installation direction (pin direction).
2,Antenna could not be in no-load state when module is working. During debugging, it is suggested to
add 50 ohms load to the antenna port to avoid damage or performance degradation of the module
under long-time no-load condition.
3,When the module needs to output 11.01dBm or more power, it needs a voltage supply of 3.3V or
more to achieve the expected output power.
4,When working at full load, it is recommended that the entire bottom surface of the module be
attached to the housing or heat dissipation plate, and it is not recommended to conduct heat
dissipation through air or screw column heat conduction.
5,UART1 and UART2 are serial ports with the same priority. The port which receives commands returns
information.
Trace antenna designs
Not Applicable
RF exposure considerations
To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and
operated with minimum distance between 20cm the radiator your body: Use only the supplied
antenna.
Antennas
The FST50_04E is an Wi-Fi 2.4G Module beams signals and communicates with its antenna, which is
PCB Antenna. The PCB Antenna gain is 2dBi
LABEL OF THE END PRODUCT
The final end product must be labeled in a visible area with the following：
Host must Contains FCC ID: 2AVZ6-FST5004E. If the size of the end product is larger than 8x10cm, then
the following FCC part 15.19 statement has to also be available on the label: This device complies with
Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and