LMA Letter

FCC ID: 2AC7Z-ESP32

Cover Letter(s)

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FCCID_2921000

Company: ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD Add: 456 Bibo Road Room A201,Shanghai,China Tel: (8621)61062057 Fax: (8621)61062057 Applicant ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD FCC ID: 2AC7Z‐ESP32 Section 15.212 Modular Transmitters Request for Modular Approval  Request for Limited Modular Approval   Requirements EUT Conditions Comply(Y/N) Single Modular Approval Requirements 1 The radio elements of the modular Refer to external photos. N transmitter must have their own This module does not shielding. The physical crystal and have shield cover. tuning capacitors may be located external to the shielded radio elements. 2 The modular transmitter must have All inputs to the Y buffered modulation/data inputs (if modules are buffered such inputs are provided) to ensure through logic or that the module will comply with microprocessor inputs. part 15 requirements under Refer to Schematics. conditions of excessive data rates or over‐modulation. 3 The modular transmitter must have Internal 3.3V power Y its own power supply regulation. regulator. Refer to schematics. 4 The modular transmitter must The antenna is integral Y comply with the antenna and to the device. It use a transmission system requirements of PCB antenna ,Refer to §§15.203, 15.204(b) and 15.204(c). external photo The antenna must either be permanently attached or employ a “unique” antenna coupler (at all connections between the module and the antenna, including the cable). The “professional installation” provision of §15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. 5 The modular transmitter must be The modular transmitter Y

tested in a stand‐alone configuration, is tesed in a stand‐alone i.e., the module must not be inside configuration. another device during testing for Please reference test compliance with part 15 setup requirements. Unless the transmitter photo for the module will be battery powered, it stand‐alone test must comply with the AC line configuration conducted requirements found in §15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see §15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see §15.31(i)). 6 If using a permanently affixed label, Refer to the lable Y the modular transmitter must be labeled with its own FCC identification number, and, if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: 2AC7Z‐ESP32” or “Contains FCC ID: 2AC7Z‐ESP32.” Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included

in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. 7 The modular transmitter must Refer to manual Y comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. 8 The modular transmitter must Refer to the test report Y comply with any applicable RF exposure requirements in its final configuration Sincerely Yours, Signature:


Document Created: 2016-02-24 16:38:35
Document Modified: 2016-02-24 16:38:35
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