Modular Letter

FCC ID: TV7RB953GS5HNTM

Cover Letter(s)

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FCCID_3366840

MikroTik (SIA "Mikrotīkls") VAT# LV40003286799 Billing addr.: Aizkraukles iela 23, Rīga, LV-1006, Latvia Office addr.: Pērnavas iela 46, Rīga, LV-1009, Latvia Phone: +371 67317700 Fax: +371 67317701 Date: March 30, 2017 Federal Communications Commission Equipment Approval Services P.O. Box 35815 Pittsburgh, PA 15251-3315 Applicant: SIA “Mikrotīkls” (MikroTik), Pernavas street 46 Latvia Equipment: RouterBOARD 953GS-5HnT-RP-US FCC ID: TV7RB953GS5HNTM IC: 7442A-RB953GS5HNT CFR Rules: Part 2 and 15.247 (Modular Transmitter) Re: Modular transmitter approval Gentlemen: As required in CFR 47 15.212 regarding unlicensed modular transmitter approval, the following information has been addressed. The transmitter module is a complete RF transmitter containing its own reference oscillator, antenna etc. The connections available on the module are for power and data interface only. Below please find information, addressing each requirement from CFR 47 15.212.

Per CFR 47 15.212 (i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. Clarification: The RouterBOARD 953GS-5HnT-RP-US is produced with permanently attached RF shield during production. (ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. Clarification: The RouterBOARD 953GS-5HnT-RP-US buffers the modulation and data inputs ensuring compliance with regulations. (iii) The modular transmitter must have its own power supply regulation. Clarification: The RouterBOARD 953GS-5HnT-RP-US incorporates regulators to ensure operation in specified range. (iv) The modular transmitter must comply with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c). 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. Clarification: The RouterBOARD 953GS-5HnT-RP-US incorporates SMA antenna connector and is therefore subject to single module authorisation. (v) The modular transmitter must be tested in a stand-alone configuration. i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line 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)). Clarification: The RouterBOARD 953GS-5HnT-RP-US was tested in a stand-alone configuration (placed on development/interface fixture) without enclosure. (vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. Clarification: The RouterBOARD 953GS-5HnT-RP-US has required labeling placed on the module and instruction for placement on exterior of end product. (vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to complete transmitter and manufacturer must provide adequate instructions along with module to explain any such requirements. Clarification: The RouterBOARD 953GS-5HnT-RP-US complies fully complies with all specific applicable rules and regulatory precautions are addressed in manual. (viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Clarification: The RouterBOARD 953GS-5HnT-RP-US complies with applicable RF exposure requirements. Installation and RF exposure precautions are addressed in manual. Sincerely Name: Edmunds Zvegincevs Title: Engineer Signature of applicant:


Document Created: 2017-04-19 16:30:07
Document Modified: 2017-04-19 16:30:07
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