Data Sheet

Integration instructions for host product manufacturers according to KDB 996369 D03 OEM
Manual v01
2.2 List of applicable 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.
2.3 Specific operational use conditions
FST50_04E Integrates high-speed GPIO and peripheral interface. Please pay attention to the
installation direction (pin direction). UART1 and UART2 are serial ports with the same priority. The port
which receives commands returns information. 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. 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. 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.
2.4 Limited module procedures
not applicable; Single Modular Approval Request
2.5 Trace antenna designs
Not applicable;
2.6 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.
2.7 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. 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.
2.8 Label and compliance information
The final end product must be label 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
(2) this device must accept any interference received, including interference that may cause undesired
operation.
2.9 Information on test modes and additional testing requirements
Data transfer module demo board can control the EUT work in RF test mode at specified test channel.
2.10 Additional testing, Part 15 Subpart B disclaimer
The module without unintentional-radiator digital circuit, so the module does not required an evaluation
by FCC Part 15 Subpart B. The host should be evaluated by the FCC Subpart B.
ATTENTION
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2) This device and its antenna(s) must not be co‐located with any other transmitters except in
accordance with FCC multi‐transmitter product procedures. Referring to the multi‐transmitter policy,
multiple transmitter(s) and module(s) can be operated simultaneously without C2P.