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FCC ID T2C-S6621S1

Module Device — by YEALINK (XIAMEN ) NETWORK TECHNOLOGY CO., LTD.

Device Details

FCC IDT2C-S6621S1
Grantee CodeT2C
Product CodeS6621S1
ApplicantYEALINK (XIAMEN ) NETWORK TECHNOLOGY CO., LTD.
AddressNo.666 Hu'an Rd. Huli District Xiamen City, Fujian Huli District,, Xiamen City, Fujian, N/A, N/A, China
Equipment ClassDTS - Digital Transmission System
Device DescriptionModule Device
Application PurposeOriginal Equipment
Grant Date2026-09-23
Frequency Range2402-2480 MHz; 2412-2462 MHz; 5180-5240 MHz; 5260-5320 MHz; 5500-5720 MHz; 5745-5825 MHz

Operating Frequencies

Frequency RangeApplication PurposeFinal Action Date
2412–2462 MHz Original Equipment 2026-09-23
2402–2480 MHz Original Equipment 2026-09-23

Exhibits (20) View on FCC.gov ↗

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DocumentTypeAvailableFile
Attestation Letter Attestation Statements 2026-09-23 ADOBE ACROBAT PDF 9.3 KB
Attestation Letter-2.911(d)(5)(i) Attestation Statements 2026-09-23 ADOBE ACROBAT PDF 80.3 KB
Attestation Letter-2.911(d)(5)(ii) Attestation Statements 2026-09-23 ADOBE ACROBAT PDF 92.5 KB
US Agent Attestation Letter Attestation Statements 2026-09-23 ADOBE ACROBAT PDF 64.9 KB
Block Diagram Metadata only Block Diagram ADOBE ACROBAT PDF 498.9 KB
FCC Agent Authorization Letter Cover Letter(s) 2026-09-23 ADOBE ACROBAT PDF 20 KB
FCC Confidentiality Letter Cover Letter(s) 2026-09-23 ADOBE ACROBAT PDF 110.4 KB
Module Approval Request Letter Cover Letter(s) 2026-09-23 ADOBE ACROBAT PDF 43.4 KB
External Photos External Photos 2026-09-23 ADOBE ACROBAT PDF 1.3 MB
Label and label location ID Label/Location Info 2026-09-23 ADOBE ACROBAT PDF 3.3 MB
Internal Photos Internal Photos 2026-09-23 ADOBE ACROBAT PDF 4.3 MB
Operation Description Metadata only Operational Description ADOBE ACROBAT PDF 9.1 KB
RF Exposure Information RF Exposure Info 2026-09-23 ADOBE ACROBAT PDF 170.5 KB
Schematics Metadata only Schematics ADOBE ACROBAT PDF 485.9 KB
Antenna Specification Test Report 2026-09-23 ADOBE ACROBAT PDF 248.8 KB
Test Report - BLE Test Report 2026-09-23 ADOBE ACROBAT PDF 1.9 MB
Test Report - WIFI Test Report 2026-09-23 ADOBE ACROBAT PDF 4.2 MB
Test Setup Photos Test Setup Photos 2026-09-23 ADOBE ACROBAT PDF 1.4 MB
User Manual Users Manual 2026-09-23 ADOBE ACROBAT PDF 2.3 MB
User Manual Warning Users Manual 2026-09-23 ADOBE ACROBAT PDF 121.9 KB

Application Information

Application IDKL9v5nBxPjptu3jBSNNW1Q==
Final Action Date2026-09-23
Application PurposeOriginal Equipment
ModelS6621S1
Frequency Range2402-2480 MHz; 2412-2462 MHz; 5180-5240 MHz; 5260-5320 MHz; 5500-5720 MHz; 5745-5825 MHz
Equipment ClassDTS - Digital Transmission System
Device DescriptionModule Device
Responsible PartyStone Lu, chenjl@yealink.com, 86-592-5702000
Non-Technical ContactBenjamin Kaur, Iconsigh, benjamin.kaur@iconsigh.com, (408) 320-9867
Test FirmNana Liu, Bay Area Compliance Laboratories Corp (Shenzhen), qa.sz@baclcorp.com, 86-755-33320018
TCB Emailbacl.regulatory@baclcorp.com
TCB ScopeA4: UNII devices & low power transmitters using spread spectrum techniques
Long-Term ConfidentialityYes
Short-Term ConfidentialityNo
Modular EquipmentSingle Modular Approval
Composite DeviceYes
Cognitive RadioNo
Authorization WaiverNo
Authorization Waiver ApprovedNo
Section 5301 CertificationYes
Related OET Knowledge DataBase InquiryNo

Applications (1)

Application IDDatePurpose
KL9v5nBxPjptu3jBSNNW1Q== 2026-09-23 Original Equipment

Equipment Authorization

FrequencyOutputToleranceEmission DesignatorRules
2412–2462 MHz 0.084 15C
2402–2480 MHz 0.0024 15C

Grants

TCB GRANT OF EQUIPMENT
AUTHORIZATION		 TCB
Certification
Issued Under the Authority of the
Federal Communications Commission
By:
  Bay Area Compliance Laboratories Corp.
1274 Anvilwood Avenue
Sunnyvale, CA 94089
Date of Grant: 09/23/2026

Application Dated: 09/23/2026
YEALINK (XIAMEN ) NETWORK TECHNOLOGY CO., LTD.
No.666 Hu'an Rd. Huli District Xiamen City, Fujian
Huli District,
Xiamen City, Fujian,
China
 
Attention: Stone Lu , Vice General Manager
NOT TRANSFERABLE
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below.
 
FCC IDENTIFIER:  T2C-S6621S1
Name of Grantee:  YEALINK (XIAMEN ) NETWORK TECHNOLOGY CO., LTD.
Equipment Class: Digital Transmission System
Notes: Module Device
Modular Type: Single Modular
Grant Notes  FCC Rule Parts Frequency
Range (MHZ) 		Output
Watts 		Frequency
Tolerance 		Emission
Designator
CC 15C 2412.0  -  2462.0 0.084  
CC 15C 2402.0  -  2480.0 0.0024  
Single Modular Approval. Output power listed is conducted. This grant is valid only when the module is sold to OEM or OEM integrator. This device must be installed to provide a separation distance of at least 20cm from all persons, and only the antenna tested with the device or similar antennas with equal or lesser gain may be used with this transmitter. Co-location of this module with other transmitters that operate simultaneously is required to be evaluated using the FCC multi-transmitter procedures. The integrator must be provided with specific information required to satisfy RF exposure compliance for final host devices and installations. Compliance of this device in all final host configurations is the responsibility of the Grantee and may require the submission of a Class II permissive change or new application.
CC: This device is certified pursuant to two different Part 15 rules sections.

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