permissive change cover letter

FCC ID: 2ARHHDOTR3000

Cover Letter(s)

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FCCID_4402792

KCTNS Co.,Ltd 6F, 552, Yeoksam-ro, Gangnam-gu, Seoul, Korea Date: July 26 2019 FCC Class II Permissive Change Request Letter FCC ID : 2ARHHDOTR3000 Original Grant Date: 02/25/2019 To Whom It May Concern: We are submitting an application for a class II permissive change to the FCC approval. We changed the following points from the original model. 1. Changed the RF switch(CON101) due to add the antenna feeding. There is no change RF output power. Added the parts: R111, R112, R113, C108, C109. 2. Changed the LPF (F100) due to size, and location is changed. 3. Added the battery gauge IC (U460) for battery monitoring. Added the parts: R460, R461, R462, R464, R465, R468, R469, C461, C464. 4. Added the Connector (CON750) due to change charging path. Added the parts: VS750, C750. 5. Deleted the parts (R400, R411, R410, R412, R413, R414, Q400, Q411, Q410) due to change the charging path. The difference with DOTR-3000(mother model) is below: The difference with DOTR-3000 Change Delete Add 1 CON101(RFSWITCH) 2 U101 (RFSWITCH) 3 R111, R112, R113, (RESISTOR) 4 C108,C109(CAPACITOR) 5 F100(LPF) 6 U460 (BATTERY GAUGE IC) 7 R460, R461, R462, R464, R465, R468, R469 (RESISTOR) 8 C461, C464 (CAPACITOR) 9 CON750 (CONNECTOR) 10 VS750 (VARISTOR) 11 C750 (CAPACITOR) 12 R400, R411, R410, R412, R413, R414 (RESISTOR) 13 Q400, Q411 (BJT) 14 Q410 (FET) 15 C410 (CAPACITOR) GAUGE IC, CONNECTOR, RFSWITCH, LPF 16 (Change of position due to part change.)

KCTNS Co.,Ltd 6F, 552, Yeoksam-ro, Gangnam-gu, Seoul, Korea Refer to the Schematics. Should you have any questions, please contact us. Sincerely, HYUN TAE JIN Senior Manager


Document Created: 2019-08-07 10:29:37
Document Modified: 2019-08-07 10:29:37
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