FCC ID: VYV-SW6621-44B1 SW6621-44B1

 

www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 SW6621-44B1 IEEE 802.11a/b/g/n/ac/ax 1T1R+Bluetooth 5.0 Combo Module DISCLAIMER AND COPYRIGHT NOTICE Information in this document, including URL references, is subject to change without notice. This document is provided As if with no whatsoever, including any warranty of merchantability, noninfringement, fitness for any purpose, or any warranty otherwise arising out of any proposal, specification or samples. All liability, including liability for infringement of any proprietary rights, relating to use of information in this document is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights are granted herein. The Bluetooth logo and symbol belong to the Bluetooth SIG Inc. The Wi-Fi Alliance Member Logo is a trademark of the Wi-Fi Alliance. All trade names, trademarks and registered trademarks mentioned in this document are property of their respective owners, and are hereby acknowledged. Copyright ITON Technology Corp. All rights reserved. www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 Table of Contents V0.4 - Oct., 2020 1. Device Overview ...........................................................................................................................................4 1.1 Descriptions ........................................................................................................................................... 4 1.2 Features ................................................................................................................................................. 4 1.2.1 General Features ............................................................................................................................4 1.2.2 Wi-Fi Key Features .........................................................................................................................4 1.2.3 Bluetooth Key Features .................................................................................................................. 5 1.3 Functional Block Diagram ...................................................................................................................... 5 2. Pin Configuration and Functions .................................................................................................................. 6 2.1 Module Pin Diagram ...............................................................................................................................6 2.2 Pin Functions ......................................................................................................................................... 6 3. Specifications ............................................................................................................................................... 9 3.1 General Characteristics ......................................................................................................................... 9 3.2 RF Characteristics ................................................................................................................................10 3.2.1 Receiver RF Specifications .......................................................................................................... 11 3.2.2 Transmitter RF Specifications ...................................................................................................... 14 3.2.3 Bluetooth RF Specifications ......................................................................................................... 18 4. Application and Implementation ................................................................................................................. 19 4.1 Application Diagram .............................................................................................................................19 4.2 Power-up and Power-down Timing ......................................................................................................20 5. Mechanical and Package ........................................................................................................................... 21 5.1 Mechanical Size ...................................................................................................................................21 5.2 Recommended Land Pattern ...............................................................................................................21 5.3 Package Information ............................................................................................................................ 22 ITON Technology Corp. Page 2 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 6. Thermal Reflow.......................................................................................................................................... 22 V0.4 - Oct., 2020 7. Ordering Information .................................................................................................................................. 23 8. Revision History ..........................................................................................................................................23 ITON Technology Corp. Page 3 of 23 www.sziton.com 1. Device Overview 1.1 Descriptions SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 The SW6621-44B1 is a highly integrated module that supports 1T1R 802.11 a/b/g/n/ac/ax with Wireless LAN (WLAN) SDIO (SDIO 1.1/2.0/3.0) interface controller and Bluetooth 5.0 HS-UART interface controller. The high speed FFT/IFFT paths, combined with BPSK, QPSK, 16QAM, 64QAM, 256QAM and up to 1024QAM modulation of the individual subcarriers, and compatible coding rate of 1/2, 2/3, 3/4, 5/6, provide up to 600Mbps for IEEE 802.11ax. The SW6621-44B1 MAC supports 802.11e for multimedia applications, 802.11i and WAPI for security.The SW6621-44B1 provides a complete solution for a high-performance integrated wireless and Bluetooth device.It suitable for STB,TVs,tablets,phones,IPC and other fields such as consumer electronic devices, and can also be applied to the fields with high reliability requirements,such as industrial interconnection. 1.2 Features 1.2.1 General Features Supports 3.3V power supply Supports SDIO 3.0 MAC, Baseband PHY and RF in a single module for IEEE 802.11a/b/g/n/ac/ax compatible WLAN IEEE 802.11i (WPA, WPA2, WPA3). Open, shared key, and pair-wise key authentication services 12.0mm*12.0mm LGA-44pin package 1.2.2 Wi-Fi Key Features Supports IEEE 802.11a/b/g/n/ac/ax wave-2 Supports IEEE 802.11 d/e/h/i/k/mc/r/v/w Supports Wi-Fi STA, AP, P2P, TDLS modes Supports LDPC,STBC Supports UL/DL OFDMA, DL MU-MIMO Supports QoS, WFA WMM, WMM PS Supports WPA, WPA2, WPA3 encryption, WAPI Supports BSS Color, Spatial Reuse Supports TWT, Intra-PPDU PS, VHT txop PS Supports WOW Supports 2.4Ghz and 5Ghz band channels 20MHz / 40MHz / 80MHz bandwidth transmission Maximum data rate up to 600Mbps in 802.11ax ITON Technology Corp. Page 4 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 OFDM with BPSK, QPSK, 16QAM, 64QAM and 256QAM and 1024QAM modulation. Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6 V0.4 - Oct., 2020 DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble 1.2.3 Bluetooth Key Features Supports Bluetooth (Classic BT+BLE) v2.1v3.0v4.2v5.0 Enhanced BT/Wi-Fi Coexistence Control to improve transmission quality in different profiles Supports BR/EDR/LE 1M/LE 2M/LE LR Supports sco and esco link Supports HS-UART /SDIO interface for BT transfer Supports SSP/Secure Connection PCM interface for audio data transmisson via Bluetooth controller 1.3 Functional Block Diagram Figure 1. Block Diagram of SW6621-44B1 ITON Technology Corp. Page 5 of 23 www.sziton.com 2. Pin Configuration and Functions 2.1 Module Pin Diagram 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 6 3 5 3 4 3 SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 S T C _ T R A U D X R _ T R A U D X T _ T R A U S T R _ T R A U X R _ 2 I C W X T _ 2 I C W C N C N D N G C N GND ANT GND NC NC HOST_WAKE_BT/TCK BT_WAKE_HOST/TMS GND VBAT SW6621-44B1 1 2 3 4 5 6 7 8 9 10 11 NC NC T S O H _ E K A W _ L W N O _ G E R _ L W 2 _ A T A D _ O I D S 3 _ A T A D _ O I D S D M C _ O I D S K L C _ O I D S 0 _ A T A D _ O I D S 1 _ A T A D _ O I D S D N G C N O I D D V L W _ E K A W _ T S O H GND NC GND NC NC PCM_SYNC PCM_IN PCM_CLK PCM_OUT NC NC 33 32 31 30 29 28 27 26 25 24 23 LGA_12x12 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 Figure 2.Pin Diagram of SW6621-44B1 2.2 Pin Functions Pin Name Description 1 2 3 4 5 6 7 GND ANT GND NC NC Ground WLAN and BT RF input/output port Ground No connect, keep floating No connect, keep floating HOST_WAKE_BT/TCK BT_WAKE_HOST/TMS Host wake up BT BT wake up Host ITON Technology Corp. Page 6 of 23 www.sziton.com 8 9 10 11 GND VBAT NC NC Ground 3.3V power supply Ground Ground SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 12 WL_REG_ON Chip Enable pin(high enable/ low disable) 13 WL_WAKE_HOST WLAN wake up Host 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 SDIO_DATA_2 SDIO_DATA_3 SDIO_CMD SDIO_CLK SDIO_DATA_0 SDIO_DATA_1 GND NC VDDIO NC NC PCM_OUT PCM_CLK PCM_IN PCM_SYNC NC NC GND NC GND SDIO port data 2 SDIO port data 3 SDIO Command line SDIO Clock line SDIO port data 0 SDIO port data 1 Ground No connect, keep floating I/O power supply No connect, keep floating No connect, keep floating PCM data output PCM clock PCM data input PCM sync signal No connect, keep floating No connect, keep floating Ground No connect, keep floating Ground HOST_WAKE_WL Host wake up WLAN NC GND NC NC No connect, keep floating Ground No connect, keep floating No connect, keep floating ITON Technology Corp. Page 7 of 23 www.sziton.com 39 WCI2_TX 40 WCI2_RX 41 42 43 44 UART_RTS UART_TXD UART_RXD UART_CTS WCI2 data transmit WCI2 data receive High-Speed UART1 TX No connect, keep floating No connect, keep floating High-Speed UART1 RX SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 ITON Technology Corp. Page 8 of 23 www.sziton.com 3. Specifications 3.1 General Characteristics Category Descriptions SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Dimension Chip-set Standard Modulation Type Frequency Band Interface Data Security Transmit PowerConducted L*W*H :12.0mm (0.2mm)*12.0mm (0.2mm)*2.4mm (0.2mm) EA6621Q IEEE 802.11a/b/g/n/ac/ax+BT 5.0 CCK, OFDM (16 QAM/64 QAM/256 QAM/1024 QAM),OFDMA 2400~2500MHz,4900-5845MHz WLAN& Bluetooth: SDIO WPA/WPA2/WPA3 2.4G:

11b 1M:202dBm 11b 11M:202dBm 11g 6M:202dBm 11g 54M:182dBm 11n HT20 MCS0:202dBm 11n HT20 MCS7:172dBm 11n HT40 MCS0:202dBm 11n HT40 MCS7:172dBm 11ax HE20 MCS0 202dBm 11ax HE20 MCS11 132dBm 11ax HE40 MCS0 202dBm 11ax HE40 MCS11 132dBm 5G:

11a 6M:202dBm 11a 54M:182dBm 11n HT20 MCS0:192dBm 11n HT20 MCS7:162dBm 11n HT40 MCS0:192dBm 11n HT40 MCS7:162dBm 11ac VHT20 MCS0:192dBm 11ac VHT20 MCS8:162dBm 11ac VHT40 MCS0:192dBm 11ac VHT40 MCS9:152dBm 11ac VHT80 MCS0:192dBm 11ac VHT80 MCS9:152dBm ITON Technology Corp. Page 9 of 23 SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 11ax HE20 MCS0 192dBm 11ax HE20 MCS11 132dBm 11ax HE40 MCS11 192dBm 11ax HE40 MCS11 132dBm 11ax HE80 MCS0 192dBm 11ax HE80 MCS11 132dBm 2.4G:

11b 11M:-91dBm@8% PER 11g 54M: -77dBm@10% PER 11n HT20 MCS7: -75dBm@10% PER 11n HT40 MCS7: -72dBm@10% PER 11ax HE40 MCS11: -61dBm@10% PER 5G:

11a 54M:-76dBm@10% PER 11n HT20 MCS7: -74dBm@10% PER 11n HT40 MCS7: -71dBm@10% PER 11ac VTH80 MCS9:-62dBm@10% PER 11ax HE40 MCS11: -61dBm@10% PER 11ax HE80 MCS11: -58dBm@10% PER 802.11b [11,5.5,2 and 1Mbps]

802.11g [54,48,36,24,18,12,9&6Mbps]

802.11n HT20:up to 72.2Mbps 802.11n HT40:up to 150Mbps 802.11ac VHT80:up to 433Mbps 802.11ax HE20:up to 143.4Mbps 802.11ax HE40:up to 286.8Mbps 802.11ax HE80:up to 600Mbps 2.4GHz:<25 ppm(11b),<20 ppm(11g/n);5GHz:<20 ppm

-30~70

-40~85 External antenna Linux VBAT:3.3V VDDIO:3.3V or 1.8V www.sziton.com Rx Sensitivity Data Rate Frequency Error Ambient Temperature Storage Temperature Antenna Operating System Operating Voltage 3.2 RF Characteristics All measurements are made under nominal supply voltage, room temperature and conducted conditions at ITON Technology Corp. Page 10 of 23 www.sziton.com each antenna port rather than antenna. 3.2.1 Receiver RF Specifications SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Parameter Conditions Min. Nom. Max. Unit Receive input frequency 2.4GHz Receiver sensitivity 802.11b/g/n/ax mode 802.11b 802.11g 802.11n

(HT20) 802.11n

(HT40) FER<8%, Packet size=

1,024bytes PER<10%, Packet size=

1,024bytes PER<10%, Packet size=

4,096bytes PER<10%, Packet size=

4,096bytes 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. 2400

2500 MHz

-82

-80

-78

-76

-82

-81

-79

-77

-74

-70

-66

-65

-82

-79

-77

-74

-70

-66

-65

-64

-79

-77

-74

-71

-67

-63

-62

-61 dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm ITON Technology Corp. Page 11 of 23 www.sziton.com 802.11ax

(HE20) 802.11ax

(HE40) MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS8. MCS9. MCS10. MCS11. MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS8. MCS9. MCS10. MCS11. PER<10%, Packet size=

4,096bytes PER<10%, Packet size=

4,096bytes Maximum input level 802.11b 802.11g 802.11n 802.11ax FER<8%

FER<10%

FER<10%

FER<10%

SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020

-82

-79

-77

-74

-70

-66

-65

-64

-59

-57

-54

-52

-79

-76

-74

-71

-67

-63

-62

-61

-56

-54

-51

-49 dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm

dBm dBm dBm dBm

-10

-20

-30

-20 Parameter Conditions Min. Nom. Max. Unit Receive input frequency 5GHz Receiver sensitivity 802.11a ITON Technology Corp. 802.11a/n/ac/ax mode 6Mbps 9Mbps FER<10%, Packet size=

4900

5845 MHz

-82

-81 dBm dBm Page 12 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS8. MCS9. MCS0. MCS1. MCS2 MCS3. 1,024bytes PER<10%, Packet size=

4,096bytes PER<10%, Packet size=

4,096bytes PER<10%, Packet size=

4,096bytes PER<10%, Packet size=

4,096bytes

802.11n

(HT20) 802.11n

(HT40) 802.11ac

(VHT80) 802.11ax

(HE80) V0.4 - Oct., 2020

-79

-77

-74

-70

-66

-65

-82

-79

-77

-74

-70

-66

-65

-64

-79

-77

-74

-71

-67

-63

-62

-61

-76

-73

-71

-68

-64

-60

-59

-58

-53

-51

-76

-73

-71

-68 dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm ITON Technology Corp. Page 13 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 MCS4. MCS5. MCS6. MCS7. MCS8. MCS9. MCS10. MCS11. FER<10%

FER<10%

FER<10%

FER<10%

Maximum input level 802.11a 802.11n 802.11ac 802.11ax 3.2.2 Transmitter RF Specifications

-30

-30

-30

-30

V0.4 - Oct., 2020

-64

-60

-59

-58

-53

-51

-48

-46 dBm dBm dBm dBm dBm dBm dBm dBm

dBm dBm dBm dBm Parameter Receive input frequency 802.11b/g/n/ax Transmit power 802.11b 802.11g 802.11n 802.11ax Spectrum mask 802.11b 802.11g 802.11n Condition Min. Nom. Max. Unit. 2.4GHz 11Mbps 54Mbps HT20, MCS7 HT40, MCS7 HE20,MCS11 HE40,MCS11 fc-22MHz<f<fc-11MHz&fc+11MHz<f<

fc+22MHz fc-55MHz<f<fc-22MHz&fc+22MHz<f<

fc+55MHz fc9MHz fc11MHz fc20MHz fc30MHz fc9MHz 2400

2500 MHz 18 16 15 15 11 11

20 18 17 17 13 13

22 20 19 19 15 15

-30

-50 0

-20

-28

-40 0 dBm dBm dBm dBm dBm dBm dBr dBr dBr dBr dBr dBr dBr ITON Technology Corp. Page 14 of 23 www.sziton.com 802.11ax (HE40) Center frequency tolerance 802.11b 802.11g/n/ax EVM (Error Vector Magnitude)*

802.11b 802.11g 802.11n 802.11ax fc11MHz fc20MHz fc30MHz fc19.5MHz fc20.5MHz fc40MHz fc60MHz 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS0. MCS1. MCS2 MCS3. MCS4. SW6621-44B1 V0.4 - Sep, 2023

-25

-20

V0.4 - Oct., 2020

-20

-28

-45 0

-20

-28

-40 dBr dBr dBr dBr dBr dBr dBr

+25

+20 pmm pmm 35 35 35 35

-5

-8

-10

-13

-16

-19

-22

-25

-5

-10

-13

-16

-19

-22

-25

-28

-5

-10

-13

-16

-19

dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB ITON Technology Corp. Page 15 of 23 SW6621-44B1 V0.4 - Sep, 2023

dB V0.4 - Oct., 2020 dB dB dB dB dB dB

-22

-25

-27

-30

-32

-35

-35

www.sziton.com MCS5. MCS6. MCS7. MCS8. MCS9. MCS10. MCS11. Remarks EVM :

<Test condition>

Method: composite EVM method. Phase correction: Symbol-by-symbol correction. Channel estimation: Raw channel estimate Raw Long Symbols. Symbol timing correction: on. Frequency Sync: Long training symbol. Parameter Receive input frequency 802.11a/n/ac/ax Transmit power 802.11a 802.11n 802.11ac 802.11ax Spectrum mask 802.11a 802.11n Condition Min. Nom. Max. Unit. 5GHz 54Mbps HT20, MCS7 HT40, MCS7 VHT20,MCS8 VHT40,MCS9 VHT80,MCS9 HE20,MCS11 HE40,MCS11 HE80,MCS11 fc9MHz fc11MHz fc20MHz fc30MHz fc9MHz fc11MHz fc20MHz 4900

5845 MHz 16 14 14 14 13 13 11 11 11

18 16 16 16 15 15 13 13 13

20 18 18 18 17 17 15 15 15 0

-20

-28

-40 0

-20

-28 dBm dBm dBm dBm dBm dBm dBm dBm dBm dBr dBr dBr dBr dBr dBr dBr ITON Technology Corp. Page 16 of 23 www.sziton.com 802.11ac (VHT80) 802.11ax (HE80) Center frequency tolerance 802.11a/n/ac/ax EVM (Error Vector Magnitude)*

802.11a 802.11n 802.11ac fc30MHz fc39MHz fc41MHz fc80MHz fc120MHz fc39.5MHz fc40.5MHz fc80MHz fc120MHz 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020

-20

-45 0

-20

-28

-40 0

-20

-28

-40 dBr dBr dBr dBr dBr dBr dBr dBr dBr

+20 pmm

-5

-8

-10

-13

-16

-19

-22

-25

-5

-10

-13

-16

-19

-22

-25

-28

-5

-10

-13

-16

-19

-22

-25

-27

dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB ITON Technology Corp. Page 17 of 23 SW6621-44B1 V0.4 - Sep, 2023

dB V0.4 - Oct., 2020 dB dB dB dB dB dB dB dB dB dB dB dB dB

-30

-32

-5

-10

-13

-16

-19

-22

-25

-27

-30

-32

-35

-35

www.sziton.com 802.11ax MCS8. MCS9. MCS0. MCS1. MCS2 MCS3. MCS4. MCS5. MCS6. MCS7. MCS8. MCS9. MCS10. MCS11. Remarks EVM :

<Test condition>

Method: composite EVM method. Phase correction: Symbol-by-symbol correction. Channel estimation: Raw channel estimate Raw Long Symbols. Symbol timing correction: on. Frequency Sync: Long training symbol. 3.2.3 Bluetooth RF Specifications Parameter Conditions Minimum Typical Maximum Frequency range RX sensitivity DH5 2DH5 3DH5 LE 1M LE 2M Initial carrier frequency offset Output power Class 1/GFSK Class 2/GFSK 2402

-24

- 6

-91

-90

-83

-95

-93 5 8 0 2480

24

4 Unit MHz dBm dBm dBm dBm dBm KHz dBm dBm ITON Technology Corp. Page 18 of 23 www.sziton.com 4. Application and Implementation 4.1 Application Diagram SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 D X R _ 1 T R A U D X T _ 1 T R A U X R _ 2 I C W X T _ 2 I C W L W _ E K A W _ T S O H 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 6 3 5 3 4 3 ANT D N G D N G IN L1 0R NC NC HOST_WAKE_BT BT_WAKE_HOST VBAT 1 2 3 4 5 6 7 8 9 S T C _ T R A U D X R _ T R A U D X T _ T R A U S T R _ T R A U X R _ 2 I C W X T _ 2 I C W C N C N D N G C N GND ANT GND NC NC HOST_WAKE_BT/TCK BT_WAKE_HOST/TMS GND VBAT SW6621-44B1 10uF 0.1uF 10 11 NC NC T S O H _ E K A W _ L W N O _ G E R _ L W 2 _ A T A D _ O I D S 3 _ A T A D _ O I D S D M C _ O I D S K L C _ O I D S 0 _ A T A D _ O I D S 1 _ A T A D _ O I D S D N G C N O I D D V L W _ E K A W _ T S O H GND NC GND NC NC PCM_SYNC PCM_IN PCM_CLK PCM_OUT NC NC 33 32 31 30 29 28 27 26 25 24 23 PCM_SYNC PCM_IN PCM_CLK PCM_OUT LGA_12x12 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 0 2 1 2 2 2 VDDIO N O _ G E R _ L W T S O H _ E K A W _ L W NC NC NC NC NC NC VDDIO 0.1uF 10uF NC NC NC NC NC NC 0R 0R 0R 0R 0R 0R 2 D _ O I D S 3 D _ O I D S D M C _ O I D S K L C _ O I D S 0 D _ O I D S 1 D _ O I D S Figure 3. Application Schematic Diagram of SW6621-44B1 ITON Technology Corp. Page 19 of 23 www.sziton.com 4.2 Power-up and Power-down Timing SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Figure 4. Power-up and Power-down Timing of SW6621-44B1 Description T1 T2 T3 T4 VBAT Ramp up time VDDIO should be powered on after VBAT is powered on WL_REG_ON should be powered on after VDDIO is powered on WL_REG_ON reset time Min 200us 0 0 50ms Typical Max

ITON Technology Corp. Page 20 of 23 www.sziton.com 5. Mechanical and Package 5.1 Mechanical Size SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020

<Top View>

<Bottom View>

<Side View>

Figure 5. Mechanical Size of SW6621-44B1 5.2 Recommended Land Pattern Figure 6.Recommended Land Pattern of SW6621-44B1 ITON Technology Corp. Page 21 of 23 www.sziton.com 5.3 Package Information SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Figure 7. Brief Packaging Process of SW6621-44B1 Modules 6. Thermal Reflow Referred to IPC/JEDEC standard. Peak temperature: <250C Number of times: 2 Note: The module is recommended not to go through reflow over twice. Figure 8. Recommended Reflow for Lead Free Solder ITON Technology Corp. Page 22 of 23 www.sziton.com 7. Ordering Information Part NO. Working Voltage ANT Shielding Cover SW6621-44B1 3.3V External antenna Included 8. Revision History SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Remark SDIO Version Change Content Reviser V0.1 V0.2 V0.3 V0.4 Draft Version Update BT communication interface Update Pin Diagram Update Application Diagram Update Pin Diagram Update Application Diagram Phil Phil Phil Phil Date 2023.3.24 2023.7.20 2023.8.7 2023.9.21 ITON Technology Corp. Page 23 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 FCC Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment

*RF warning for Mobile device:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. The OEM must certify the final end product to comply with unintentional radiators (FCC Sections 15.107 and 15.109) before declaring compliance of the final product to Part 15 of the FCC rules and regulations. Integration into devices that are directly or indirectly connected to AC lines must add with Class II Permissive Change. The OEM must comply with the FCC labeling requirements. If the modules label is not visible when installed, then an additional permanent label must be applied on the outside of the finished product which states: Contains transmitter module FCC ID: VYV-SW6621-44B1. Additionally, the following statement should be included on the label and in the final products user manual:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interferences, and

(2) this device must accept any interference received, including interference that may cause undesired operation. The module is limited to installation in applications. Separate approval is required for all other operating configurations, including portable configuration with respect to Part 2.1093 and different antenna configurations. A module or modules can only be used without additional authorizations if they have been tested and granted under the same intended end - use operational conditions, including simultaneous transmission operations. When they have not been tested and granted in this manner, additional testing and/or FCC application filing may be required. The most straightforward approach to address additional testing conditions is to have the grantee responsible for the certification of at least one of the modules submit a permissive change application. When having a module grantee file a permissive change is not practical or feasible, the following guidance provides some additional options for host manufacturers. Integrations using modules where additional testing and/or FCC application filing(s) may be required are: (A) a module used in devices requiring additional RF exposure compliance information (e.g., MPE evaluation or SAR testing); (B) limited and/or split modules not meeting all of the module requirements; and (C) simultaneous transmissions for independent collocated transmitters not previously granted together.This Module is full modular approval, it is limited to OEM installation ONLY. Integration into devices that are directly or indirectly connected to AC lines must add with Class II Permissive Change. (OEM) Integrator has to assure compliance of the entire end product include the integrated Module. Additional measurements (15B) and/or equipment authorizations (e.g. Verification) may need to be addressed depending on co-location or simultaneous transmission issues if applicable. (OEM) Integrator is reminded to assure that these installation ITON Technology Corp. Page 24 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 instructions will not be made available to the end user. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 V0.4 - Oct., 2020 2.2 List of applicable FCC rules FCC Part 15 Subpart C 15.247 & 15.207 & 15.209 & 15.205 FCC Part 15 Subpart E 15.407 2.3 Specific operational use conditions When installed in smart terminal products, the host manufacturer must negotiate with the module manufacturer on the final installation method in the system.The module can be used for mobile applications with a maximum 3.16 dBi antenna. The host manufacturer installing this module into their product must ensure that the final compost product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation. The host manufacturer 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. The module should be installed and operated with minimum distance 20cm between the radiator & your body. and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization.When the host is a portable device, it is necessary to take a SAR test with your set mounting this module. Class II permissive change application is necessary using the SAR report. Please contact kevin (kevin@sziton.com). And an application for a Class II permissive change from a Mobile equipment to a Portable equipment is also required. Note) Portable equipment : Equipment for which the spaces between human body and antenna are used within 20cm. Mobile equipment : Equipment used at position in which the spaces between human body and antenna exceeded 20cm. 1. According to the following requirements of the power supply DC3.3V, power up, about 3 seconds to to complete the initial. 2. iphone/Android mobile phone BT/WIFI function to open, search to the corresponding Wireless network adapter name (name can be changed according to customer production requirements), click the name of the BT/WIFI and select the connection. 3. open application software (need to install the company's specific application software development, application software interface can be customized according to customer's product requirements). ITON Technology Corp. Page 25 of 23 www.sziton.com 2.4 Limited module procedures The module is a Single module. Requirement per 15.212 and KDB 996369 D01 The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. The module must contain power supply regulation on the module. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The module must demonstrate compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The module must comply with RF exposure requirements SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Has RF shielding. The modular have buffered modulation/data inputs. The modular transmitter have its own power supply regulation.(DC 3.3V) Antenna restrictions are added in the manual.The antenna needs to be professionally installed. The module was tested in a stand-alone configuration, please refer to the Setup Photo for the detail Please refer to label sample exhibit - host labeling is described in integration manual The required FCC rule has been fulfilled and all the instructions for the maintaining compliance have been clearly stated in the User Manual. The MPE evaluation with 20cm distance restriction is submitted for the compliance of RF Exposure requirement. ITON Technology Corp. Page 26 of 23 www.sziton.com 2.5 Trace antenna designs SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Please perform the Trace antenna design that followed the specifications of the antenna. The concrete contents of a check are the following three points. 1) It is the same type as the antenna type of antenna specifications.Confirm the same size as the Gerber file. 2) An antenna gain is lower than a gain given in antenna specifications.Measure the gain, and confirm the peak gain is less than 3.16dBi. 3) The emission level is not getting worse. Measure the spurious, and confirm degradation of less than 3dB than spurious value of worst of report used for the application. Dipole Antenna specification You can see antenna size is 1082mm*7.9mm* From below Specification. Please refer to the chart below for PCB size of RF line terminal. ITON Technology Corp. Page 27 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 Scrape a GND off the side of the J1,connect the FPC antenna to the PCB at the position of the J1 connector.

[The line between the FPC antenna and the WiFi module] must be 50 ohm. C1 is 10pF Capacitors. 2.6 RF exposure considerations The module complies with FCC radiation exposure limits set forth for an uncontrolled environment.The module should be installed and operated with minimum distance 20cm between the radiator & your body. 2.7 Antennas This module has been approved to operate with the antenna types listed below, with the maximum permissible gain indicated.The module antenna requires professional installation, and the antenna type cannot be changed. The gain cannot exceed 3.16dBi. Frequency band 2400-2500MHz Antenna Type Dipole Antenna 5150~5250MHz Dipole Antenna 5250~5350MHz Dipole Antenna 5470~5725MHz Dipole Antenna 5725~5850MHz Dipole Antenna Model Number N1911 N1911 N1911 N1911 N1911 Max Gain 2.53(dBi) 1.87(dBi) 2.11(dBi) 2.93(dBi) 3.16(dBi) ITON Technology Corp. Page 28 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 This device is intended only for host manufacturers 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. The antenna must be either permanently attached or employ a unique antenna coupler. V0.4 - Oct., 2020 As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheralrequirements, etc.). 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID: VYV-SW6621-44B1 With their finished product. 2.9 Information on test modes and additional testing requirements The module complies with FCC radiation exposure limits set forth for an uncontrolled environment.The module should be installed and operated with minimum distance 20cm between the radiator & your body. and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization.When the host is a portable device, it is necessary to take a SAR test with your set mounting this module. Class II permissive change application is necessary using the SAR report. Please contact

(kevin@sziton.com). And an application for a Class II permissive change from a Mobile equipment to a Portable equipment is also required. kevin Note) Portable equipment : Equipment for which the spaces between human body and antenna are used within 20cm. Mobile equipment : Equipment used at position in which the spaces between human body and antenna exceeded 20cm. Host manufacturer must perform test of radiated & conducted emission and spurious emission, etcaccording to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product canbe sold legally. 2.10 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247 &15.407&

15.207 & 15.209 & 15.205and that the host product manufacturer is responsible for compliance ITON Technology Corp. Page 29 of 23 www.sziton.com SW6621-44B1 V0.4 - Sep, 2023 V0.4 - Oct., 2020 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. 2.11 The user manual of the end product should include:

a) Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. b) The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. c) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. d) This device is restricted to indoor use. e) The antenna(s) used for this transmitter must not transmit simultaneously with any other antenna or transmitter. ITON Technology Corp. Page 30 of 23 IC Warning This device complies with Industry Canadas licence-exempt RSS standard(s). Operation is subject to the following two conditions:

(1) this device may not cause interference, and

(2) this device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:

(1) l'appareil nedoit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de la classe B est conforme la norme NMB-003 du Canada. IC RF Statement:

When using the product, maintain a distance of 20cm from the body to ensure compliance with RF exposure requirements. Dclaration IC RF:

Lors de l'utilisation du produit, maintenez une distance de 20 cm du corps pour garantir conformit aux exigences d exposition aux RF.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Iton Technology Corp. Section 2.911(d)(5)(i) Certification Equipment Type Company name: Iton Technology Corp. Address: 7 Floor East, Building C, Shenzhen International Innovation Center, No.1006 Shennan Rd. Futian Dist, Shenzhen, China Product Name: SW6621-44B1 FCC ID: VYV-SW6621-44B1 Model(s): SW6621-44B1, SW6521-44B1, SW6221-44B2 2.911(d)(5)(i) Equipment Type We, [Iton Technology Corp.] certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Name: Zhanchi Zha Date: 2024-04-08 Title and Company name: Product Manager/ Iton Technology Corp. NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

 

 

Iton Technology Corp. Section 2.911(d)(5)(ii) Certification Applicant (Covered List) Company name: Iton Technology Corp. Address: 7 Floor East, Building C, Shenzhen International Innovation Center, No.1006 Shennan Rd. Futian Dist, Shenzhen, China Product Name: SW6621-44B1 FCC ID: VYV-SW6621-44B1 Model(s): SW6621-44B1, SW6521-44B1, SW6221-44B2 2.911(d)(5)(ii) Applicant filing We, [Iton Technology Corp.] certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Zhanchi Zha Date: 2024-04-08 Title and Company name: Product Manager/ Iton Technology Corp. NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Iton Technology Corp. Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2024-04-08 Subject; Modular Transmitter Application Company name: Iton Technology Corp. FCC ID: VYV-SW6621-44B1 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;-

FCC KDB 996369 D01 Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Equip Auth Guide v02. FCC ID VYV-SW6621-44B1 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. The module must contain power supply regulation on the module. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The module must demonstrate compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. The module must comply with RF exposure requirements Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Yes, Has RF shielding. Yes, The modular have buffered modulation/data inputs. Yes, The modular transmitter have its own power supply regulation.(DC 3.3V) Yes, Antenna restrictions are added in the manual.The antenna needs to be professionally installed. Yes, The module was tested in a stand-alone configuration, please refer to the Setup Photo for the detail Yes, Please refer to label sample exhibit -

host labeling is described in integration manual Yes, The required FCC rule has been fulfilled and all the instructions for the maintaining compliance have been clearly stated in the User Manual. Yes, The MPE evaluation with 20cm distance restriction is submitted for the compliance of RF Exposure requirement. FCC Modular Approval Request Rev 3.0 Iton Technology Corp. Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Requirements of KDB 996369 D03 Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements;

User Manual Page Number KDB reference Ref Sect Page 24~31 Page 24~31 Page 24~31 Page 24~31 Page 24~31 Page 24~31 Page 24~31 Page 24~31 List of applicable FCC rules Summarize the specific operational use conditions Limited module procedures Trace antenna designs RF exposure considerations Antennas Label and compliance information Information on test modes and additional testing requirements Additional testing, Part 15 Subpart B disclaimer 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 Page 24~31 2.10 Date: 2024-04-08 Name: Zhanchi Zha Title: Product Manager Signature of applicant FCC Modular Approval Request Rev 3.0

 

 

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: VYV-SW6621-44B1 Iton Technology Corp. Date: 2024-04-08 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description SW SECURITY DESCRIPTION Parts List Tune up In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Zhanchi Zha Title: Product Manager

 

 

Iton Technology Corp. Letter of Authorization Company: Iton Technology Corp. Address:7 Floor East, Building C, Shenzhen International Innovation Center, No.1006 Shennan Rd. Futian Dist, Shenzhen, China Product Name: SW6621-44B1 Model(s): SW6621-44B1, SW6521-44B1, SW6221-44B2 Product Description: SW6621-44B1 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Name:

Title:

Company:

Zhanchi Zha Product Manager Iton Technology Corp. Date: 11/21/2023

 

 

 

 

 

 

Iton Technology Corp. Declaration on Model Differences We, Iton Technology Corp. 7 Floor East, Building C, Shenzhen International Innovation Center, No.1006 Shennan Rd. Futian Dist, Shenzhen, China Declare that the following product(s):

Product Name: SW6621-44B1 FCC ID: VYV-SW6621-44B1 Model(s): SW6621-44B1, SW6521-44B1, SW6221-44B2 Utilize the identical circuit design, PCB layout, shielding and interface with (SW6621-44B1), the different is SW6621-44B1, SW6221-44B2 With 80MHz bandwidth, SW6521-44B1 Without 80MHz bandwidth. Therefore this application can be regarded as identical in performance to the submitted test sample. The manufacturer would take all the responsibilities for the above product(s). For and on behalf of Authorized person Name: Zhanchi Zha Position: Product Manager Date of issue: 2024-04-08

*I hereby declare that I am entitled to sign on behalf of the applicant and that the information supplied is correct and complete.

 

 

 

 

 

 

-lton Technology Corp.

Commission Communications and Evaluation Authorization Federal Authorization Equipment 7435 Oakland Columbia, Mills MD 21046 Branch Road Division U.S. Anation 3/29/23 Corp.] acknowledges

[lton Technology thei consentforthe following States to actas their agent

(FCC ID:[VYV-SW6621-44B1 of process for the equipment for service contactlocatedintheUnited is sought for which authoization

]) Name and company of U.S. agent: Stone Trading Limited Physical U.S. address of agent: 6547 N Academy Blvd #2266,Co lorado Springs,CO 80918,United States FRN of U.S. agent: 0033401936 Email address of U.S. agent: compliance@c-shlink.com Telephone No of U.S. agent:

+12134573 118 Stone Trading Limited acknowledges their obligation to accept service of process on behalf of [lton Technology Corp.].

[lton Technology Corp.] FRN is 0025963323 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicabl e equipment within the U.S., or the conclusion of any Commission-

related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application listed unde 2.911( d)(?). requirements Sincerely, Signatu

[Name]

[Title]

[Comp Sign zhanchizha Manager lton Technology Corp. Dongmei Fang

[Name of U.S. agent]

[Title of U.S. agent] Manager

[Company of U.S. agent]

The information provided An expiration date for this letter Stone Trading Limited in this letter is based does not exist. on the referenced In case the U.S. agent rule parts of Title 47 of the CFR as well as KDB 986446 DOI. changes, the grantee is obligated to notify the FCC rn A

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Iton Technology Corp. FCC Software Configuration Control Declaration Date: April 8, 2024 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ Model Number: SW6621-44B1/ SW6621-44B1, SW6521-44B1, SW6221-44B2 Regarding FCC Country Code Selection guidelines identified in KDB 594280 v02r01. All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Name: Zhanchi Zha Date: 2024-04-08 Title: Product Manager Signature of applicant FCC Software Configuration Control Declaration Rev1.1