Thortron BLM8723DS1 WLAN Bluetooth v4.2 SDIO Module Instruction Manual
- June 15, 2024
- Thortron
Table of Contents
Integration installation instruction
BLM8723DS1 WLAN Bluetooth v4.2 SDIO Module
2.2 List of applicable FCC rules
List the FCC rules that are applicable to the modular transmitter. These are
the rules that specifically establish the bands of operation, the power,
spurious emissions, and operating fundamental frequencies. DO NOT list
compliance to unintentional-radiator rules (Part 15 Subpart B) since that is
not a condition of a module grant that is extended to a host manufacturer. See
also Section
2.10 below concerning the need to notify host manufacturers that further
testing is required.3
Explanation: This module meets the requirements of FCC part 15C
(15.247).it Specifically identified AC Power Line Conducted Emission,Radiated
Spurious emissions,Band edge and RF Conducted Spurious Emissions,Conducted
Peak Output Power,Bandwidth,Power
Spectral Density,Antenna Requirement.
2.3 Summarize the specific operational use conditions
Describe use conditions that are applicable to the modular transmitter,
including for example any limits on antennas, etc. For example, if point-
topoint antennas are used that require reduction in power or compensation for
cable loss, then this information must be in the instructions. If the use
condition limitations extend to professional users, then instructions must
state that this information also extends to the host manufacturer’s
instruction manual. In addition, certain information may also be needed, such
as peak
gain per frequency band and minimum gain, specifically for master devices in 5
GHz DFS bands.
Explanation: The WFCO smart power control system gives the user control
of devices throughout the RV, ranging from lights, to the water pump, to the
awnings and slide outs. Whether using the APP through a smart device or using
voice commands, the end user has complete control of their RV.
The device is installed in the RV , as shown in the drawing location 1.
The module is installed in the WFCO smart power control system position 1 in
the following figure.
The installation requirement is SMT mount. The antenna is in the picture
position 2, and the distance between the antenna and the human body is greater
than 20cm.The device is only used indoors.Modules are only used by applicants
to install into our own products.
This module is limited used antenna as below:
Antenna Infomation
Model name| Antenna Type| Connector| MAx gain dBi| wApplication range
Aigain-WIFI| PCB Antenna| /| 2.57dBi| 2400-2500MHz
2.4 Limited module procedures
In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘
Module Equip Auth Guide v02’ . FCC ID 2BDDW-BLM8723DS1 cannot meet the
integrated antenna and do not contain power supply regulation on the module.
If a modular transmitter is approved as a “limited module,” then the module
manufacturer isresponsible for approving the host environment that the limited
module is used with. The manufacturer of a limited module must describe, both
in the filing and in the installation instructions, the alternative means that
the limited module manufacturer uses to verify that the host meets the
necessary requirements to satisfy the module limiting conditions.
A limited module manufacturer has the flexibility to define its alternative
method to address the conditions that limit the initial approval, such as:
shielding, minimum signaling amplitude, buffered modulation/data inputs, or
power supply regulation. The alternative method could include that the limited
module manufacturer reviews detailed test data or host designs prior togiving
the host manufacturer approval.
This limited module procedure is also applicable for RF exposure evaluation
when it is necessary to demonstrate compliance in a specific host. The module
manufacturer must state how control of the product into which the modular
transmitter will be installed will be maintained such that full compliance of
the product is always ensured. For additional hosts otherthan the specific
host originally granted with a limited module, a Class II permissive change is
required on the module grant to register the additional host as a specific
host also approved with themodule.
Explanation: The module is a limited single module. the module without antenna
and the module was not tested in stand-alone configuration it was tested in
the Host. The modules are only used by applicants to install into the host
products.
2.5 Trace antenna designs
If trace antenna designs are applicable, full-detail design specifications are
required per D02 Module Q&A Question 11.
For a modular transmitter with trace antenna designs, see the guidance in
Question 11 of KDB Publication 996369 D02 FAQ –Modules for Micro-Strip
Antennas and traces. The integration information shall include for the TCB
review the integration instructions for the following aspects: layout of trace
design, parts list (BOM), antenna, connectors, and isolation requirements.4
a) Information that includes permitted variances (e.g., trace boundary limits,
thickness, length, width, shape(s), dielectric constant, and impedance as
applicable for each type of antenna);
b) Each design shall be considered a different type (e.g., antenna length in
multiple(s) of frequency, the wavelength, and antenna shape (traces in phase)
can affect antenna gain and must be considered);
c) The parameters shall be provided in a manner permitting host manufacturers
to design the printed circuit (PC) board layout;
d) Appropriate parts by manufacturer and specifications;
e) Test procedures for design verification; and
f) Production test procedures for ensuring compliance.
The module grantee shall provide a notice that any deviation(s) from the
defined parameters of the antenna trace, as described by the instructions,
require that the host product manufacturer must notify the module grantee that
they wish to change the antenna trace design. In this case, a Class II
permissive change application is required to be filed by the grantee, or the
host manufacturer can take responsibility through the change in FCC ID (new
application) procedure followed by a Class II permissive change application.
Explanation: not appliable.
2.6 RF exposure considerations
It is essential for module grantees to clearly and explicitly state the RF
exposure conditions that permit a host product manufacturer to use the module.
Two types of instructions are required for RF exposure information:
- to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person’s body); and
- additional text needed for the host product manufacturer to provide to end users in theirendproduct manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application).
Explanation: The module is installed in the WFCO smart power control
system position 1 in the following figure.
The installation requirement is SMT mount. The antenna is in the picture
position 2, and the distance between the antenna and the human body is greater
than 20cm.The device is only used indoors.Modules are only used by applicants
to install into our own products.
2.7 Antennas
A list of antennas included in the application for certification must be
provided in the instructions. For modular transmitters approved as limited
modules, all applicable professional installer instructions must be included
as part of the information to the host product manufacturer. The antenna list
shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that
forexample an “omni-directional antenna” is not considered to be a specific
“antenna type”)).
For situations where the host product manufacturer is responsible for an
external connector, for example with an RF pin and antenna trace design, the
integration instructions shall inform the installer that unique
antennaconnector must be used on the Part 15 authorized transmitters used in
the hostproduct. The module manufacturers shall provide a list of acceptable
unique connectors.
Explanation:
This module is limited used antenna as below:
Antenna Infomation
Model name| Antenna Type| Connector| MAx gain dBi| wApplication range
Aigain-WIFI| PCB Antenna| /| 2.57dBi| 2400-2500MHz
2.8 Label and compliance information
Grantees are responsible for the continued compliance of their modules to the
FCC rules. This includes advising host product manufacturers that they need to
provide a physical or e-label stating “Contains FCC ID” with their finished
product. See Guidelines for Labeling and User Information for RF Devices KDB
Publication 784748.
Explanation: The host system using this module, should have label in a visible
area indicated the following texts: “Contains FCC ID: 2BDDWBLM8723DS1.
2.9 Information on test modes and additional testing requirements5
Additional guidance for testing host products is given in KDB Publication
996369 D04 Module Integration Guide. Test modes should take into consideration
different operational conditions for a stand-alone modular transmitter in a
host, as well as for multiple simultaneously transmitting modules or other
transmitters in a host product.
The grantee should provide information on how to configure test modes for host
product evaluation for different operational conditions for a stand-alone
modular transmitter in a host, versus with multiple, simultaneously
transmitting modules or other transmitters in a host.
Grantees can increase the utility of their modular transmitters by providing
special means, modes, or instructions that simulates or characterizes a
connection by enabling a transmitter. This can greatly simplify a host
manufacturer’s determination that a module as installed in a host complies
with FCC requirements.
Explanation:
It can increase the utility of our modular transmitters by providing
instructions that simulates or characterizes a connection by enabling a
transmitter.
2.10 Additional testing, Part 15 Subpart B disclaimer
The grantee should include a statement that the modular transmitter is only
FCC authorized for the specific rule parts (i.e., FCC transmitter rules)
listed on the grant, and that the host product manufacturer is responsible for
compliance to any other FCC rules that apply to the host not covered by the
modular transmitter grant of certification. If the grantee markets their
product as being Part 15 Subpart B compliant (when it also contains
unintentional-radiator digital circuity), then the grantee shall provide a
notice stating that the final host product still requires Part 15 Subpart B
compliance testing with the modular transmitter installed.;
Explanation: the grantee is responsible for compliance to any other FCC rules
and notice that the final host should be required part 15 subpart B testing
when the modular transmitter installed, when it also contains unintentional-
radiator digital circuity.
OEM integration instructions:
This device is intended only for OEM integrators under the following
conditions:
The transmitter module may not be co-located with any other transmitter or
antenna.
The module shall be only used with the external antenna(s) that has been
originally tested and certified with this module.
As long as the conditions above are met, further transmitter test will not be
required. However, the OEM integrator is still responsible for testing their
end-product for any additional compliance requirements required with this
module installed (for example, digital device emissions, PC peripheral
requirements, etc.).
Validity of using the module certification:
In the event that these conditions cannot be met (for example certain laptop
configurations or co-location with another transmitter), then the FCC
authorization for this module in combination with the host equipment is no
longer considered valid and the FCC ID of the module cannot be used on the
final product. In these circumstances, the OEM integrator will be responsible
for re-evaluating the end product (including the transmitter) and obtaining a
separate FCC authorization.
End product labeling:
The final end product must be labeled in a visible area with the following:
“Contains Transmitter Module FCC ID: 2BDDW-BLM8723DS1”.
Information that must be placed in the end user manual:
The OEM integrator has to be aware not to provide information to the end user
regarding how to install or remove this RF module in the user’s manual of the
end product which integrates this module. The end user manual shall include
all required regulatory information/warning as show in this manual.