FCC ID: 2AQV6DRAGON Bluetooth 5 BLE module

Dragon-B Manual Dragon-B Manual Project:Dragon-B Bluetooth 5 BLE module Module name:Dragon-B Designed:Suzhou Pairlink Network Technology Ltd. Version V1.0 Note Create Date 2020/02/21 This document contains information that is proprietary to Pairlink . This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. Pairlink reserves the right to change information at any time without notification. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual Contents 1.Functional Characteristics.........................................................................................................- 3 -

1.1.Product Feature............................................................................................................. - 4 -

1.2. Main Application Domain............................................................................................. - 4 -

2.Electrical Specifications.............................................................................................................- 5 -

2.1.Absolute Ratings............................................................................................................ - 5 -

2.2.Recommended Operating Conditions........................................................................... - 5 -

2.3.Power Consumption...................................................................................................... - 6 -

3.Physical Parameters.................................................................................................................. - 7 -

3.1.Peripheral Interface....................................................................................................... - 7 -

4.Hardware design and use manual............................................................................................ - 8 -

4.1.Pin assignment and Pin descriptionab............................................................................- 8 -

4.2.Reference Design........................................................................................................... - 9 -

4.3.Interface Signal Function Selection............................................................................. - 10 -

4.4.Appearance and Dimensions....................................................................................... - 11 -

5.Regulatory Module Integration Instructions.......................................................................... - 12 -

5.1.List of applicable FCC rules.......................................................................................... - 12 -

5.2.Summarize the specific operational use conditions................................................... - 12 -

5.3.Limited module procedure.......................................................................................... - 12 -

5.4.Trace antenna designs..................................................................................................- 12 -

5.5.RF exposure considerations.........................................................................................- 12 -

5.6.Antenna........................................................................................................................- 12 -

5.7.Label and compliance information..............................................................................- 13 -

5.8.Information on test modes and additional testing requirements.............................. - 13 -

6.FCC Statement.........................................................................................................................- 13 -

7.ISED Compliance Information.................................................................................................- 13 -

8:OEM/Integrators Installation Manual ....................................................................................- 13 -

All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 1.Functional Characteristics Dragon-B is SOC module developed based on the Bluetooth 5 standards. the internal integration architecture ARM Cortex-M3 processor.It has the advantage of small volume, long distance transmission, strong anti-jamming capability, low cost.Specifically applied to Bluetooth low power control area,and suitable for various occasions short distance wireless communication. low power consumption, The Dragon-B is the optimal solution for voice, data, home automation, accessories and other applications that require a Bluetooth SIG standards-compliant interface. The Dragon-B supports a host command interface (HCI) through USB or UART and also supports PCM audio. The Dragon-B transceivers enhanced radio performance meets the most stringent industrial temperature application requirements for compact integration into mobile handset and portable devices. The module includes 20Mhz Crystal and 8Mb SPI flash. The module is also integrated with ceramic antenna.Circuit block diagram of the module is shown in Figure 1. Figure 1: Dragon-B Circuit Block Diagram All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 1.1.Product Feature 1. Dragon-B under Bluetooth 5 specification. including BR/EDR/BLE. 2. Supports A2DP, AVRCP, HSP, HFP, GATT, SPP, HIDD, HIDH, ANCS, AMS, IAP2, PBAP, OBEX, WeChat, HomeKit, Wide band speech (WBS) 3. Support Beacon function. 4. Support OTA Upgrade, UART Upgrade. 5. I2S/PCM for BT audio 1.2. Main Application Domain 1: Bluetooth Printer/Scanning device 2: Home automation/ Intelligent lighting / Intelligent access control system. 3: Industrial telemetry / Industrial data collection. 4: Bluetooth and RS232 (RS485) serial data transfer. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 2.Electrical Specifications Integration architecture ARM Cortex-M3 processor 352KB RAM,848KB ROM,8Mbit Flash Include 8Mbit SPI FLASH, Memory size is optional Supports Cypress proprietary data rate up to 2 Mbps 2.1.Absolute Ratings Parameter Power Supply Current Consumption Storage temperature Working temperature ESD HBM ESD CDM Latch-up Min.

-0.3

-40

-30

-2K

-500 TBD Specification Typical 3.3

TBD 2.2.Recommended Operating Conditions Parameter Power Supply Min. 3.0 Specification Typical 3.3 Max.

+3.8 40

+150

+105

+2K

+500 TBD Max. 3.6 Digital I/O Characteristic(VDDIO=3.3V) Characteristics Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Symbo l VIL VIH VOL VOH Min. 2.0

VBAT-0.4V Specification Typical

Max. 0.8 0.4

Unit V mA V V mA Unit V Unit V V V V All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 2.3.Power Consumption Current consumption measured with 3.30V power on in VBAT. The following data is not accurate value, only for reference. SPP(EDR+LE) Conditions AVG Current Operational Mode Shutdown MCU idle + nodiscoverable MCU idle + discoverable Interval:500ms MCU active+discoverable Interval:500ms Connected+ MCU idle Connected+MCU active No data No data Connected + transfer data Low Energy(EDR+LE) Operational Mode Shutdown MCU idle + no Adv MCU idle + Adv Interval:500ms MCU active+Adv Interval:500ms Connected+ MCU idle No data Connected+MCU active No data Connected + transfer data Low Energy(only LE) Operational Mode Shutdown MCU idle + no Adv MCU idle + Adv Interval:500ms MCU active+Adv Interval:500ms Connected+ MCU idle Connected+MCU active Connected + transfer data 8 1.1 1.2 1.9 1.85 1.9 8.23 8 1.1 1.2 1.9 1.85 1.9 3.15 8 60 120 1.1 220 320 3.15 Unit uA mA mA mA mA mA mA Unit uA mA mA mA mA mA mA Unit uA uA uA mA uA uA mA Conditions AVG Current Conditions AVG Current All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 3.Physical Parameters Distance 50M 10M Parameter Performance Note Data Transfer (BLE) Environment: Sunny and open Dragon-B with ceramic Antenna Airspeed: 1Mbps AUDIO(BR/EDR) Environment: Sunny and open Dragon-B with ceramic Antenna Dimensions 16.8mm*11mm*2.6mm L*W*H RF Interface Dragon-B:Ceramic antenna Output gain:2dBi(Max) 3.1.Peripheral Interface 1 x I2S/PCM interface 1 x PUART interface with CTS/RTS 1 x HCI UART interface with CTS/RTS 1 x SPI interface with master/slave configurable 1 x I2C interface with master/slave configurable 12 x GPIO 1 x ADC input 4 x PWM interface All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 4.Hardware design and use manual 4.1.Pin assignment and Pin descriptionab Dragon-B Pin definition can refer to Figure 2. Pin Pin Name I/O POR Alternate Function Description Table 1:Module Pin Description Number 10 1,2,3,9,17

,18,26 VBAT GND 11 RESET State

Power Supply Connect to Ground ADI GND DI I,PU I,PU I I DIO DIO DIO DIO DIO RECOVERY UART_RTS UART_CTS UART_RXD P30 P25 P36 INPUT. Reset signal (active Low). Floating if not used SPI2 Master In Slave Out. For Test. RTS for HCI UART interface. NC if unused. CTS for HCI UART interface: NC if unused. Serial data input for the HCI UART interface. UART_TXD O,PU Serial data input for the HCI UART interface. P15/ADC_IN Floating GPIO:P15/ADC_IN P4/PUART_RX Floating Floating GPIO:P30 Floating GPIO:P25/P32 GPIO:P4/P24 PUART_TX Floating GPIO:P36/P38 P31/PUART_TX DIO Floating P34/I2S_WS DIO Floating P12 DIO Floating P29/I2S_DATA DIO Floating P28/I2S_SCLK DIO Floating P26 DIO Floating GPIO:P31 PUART_RX GPIO:P34 I2S_WS /PCM_SYNC GPIO:P12 I2S_DI/PCM_IN/I2C_SDA GPIO:P29 I2S_DO/PCM_OUT/I2C_SCL/PWM3 GPIO:P28 I2S_SCLK/PCM_CLK/PWM2 GPIO:P26/P11 PWM0 7 3 4 5 6 8 13 14 15 16 19 20 21 22 23 24 All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 25 P27/I2S_MCLK GPIO:P27/P33 I2S_MCLK/PWM1 a. For more GPIO function configuration questions, contact to Pairlink. b. During power-on reset, all inputs are disabled. Floating DIO 4.2.Reference Design The latest schematic and design examples, bill of material, and layout file are available from original developer . Contact us for details. Figure 2: Module Reference Design Circuit Description 1:VBAT supply voltage value is 3.0V-3.60V. 2:PIN12(Recovery) reserved for testing. 3:PIN11(RST_L) is Module Reset_Control (active Low) ,Keep floating if the user not use. 4:Reserve JP1 burning interface if the PCB board has enough space. 5:Dragon-B support GPIOs supermux,for more GPIO function configuration questions, please contact the Pairlink. 6:Only PIN8(P15) support ADC function. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 4.3.Interface Signal Function Selection Dragon-B not support GPIOs Supermux. IIC\IIS\PWM\SPI\ADC can't be configured at the same time. If the customer wants to use all functions, it can be assigned by Pairlink. Peripheral_UART P_UART_TX P_UART_RX PIN Number 19 PIN Name P31 PIN Number 15 PIN Name P4 IIC_SDA IIC_SCL PIN Number 21 PIN Name P12 PIN Number 22 PIN Name P29 SPI_CS

(SLAVE) Number PIN 24 PIN Name P26 SPI_CLK SPI_MOSI SPI_MISO PIN

(Mater and Salve ) PIN Name P36 Number 16

(Mater and Salve )

(Mater and Salve ) Number PIN 25 PIN Name P27 Number PIN 14 PIN Name P25 I2S_WS I2S_DATA I2S_SCLK I2S_MCLK Number PIN 20 PIN Name P34 Number PIN 22 PIN Name P29 Number PIN 23 PIN Name P28 Number PIN 25 PIN Name P27 PWM0 PWM1 PWM2 PWM3 Number PIN 24 PIN Name P26 Number PIN 25 PIN Name P27 Number PIN 23 PIN Name P28 Number PIN 22 PIN Name P29 IIC SPI IIS PWM HCI_UART HCI_UART_TXD HCI_UART_RXD HCI_UART_CTS HCI_UART_RTS PIN Number PIN Number PIN Number PIN Number 7 HCI_UART_ 6 HCI_UART_ 5 HCI_UART_ 4 HCI_UART_ PIN Name CTS PIN Name RTS PIN Name RXD PIN Name TXD All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 4.4.Appearance and Dimensions Figure 3 shows the size of the module.The components and prominent structure are not allowed put in this size range(16.8mm*11.0mm*2.60mm). The following land pattern size is recommended for user board design. However, user can modify it according PCB soldering conditions. Sufficient examination is necessary if use the modified land pattern. Figure 3: Mechanical Information All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 5.Regulatory Module Integration Instructions 5.1.List of applicable FCC rules This device complies with part 15.247 of the FCC Rules. 5.2.Summarize the specific operational use conditions This module can be used in household electrical appliances as well as lighting equipments. The input voltage to the module should be nominally 3.0~3.6VDC, Typical value 3.3VDC and the ambient temperature of the module should not exceed 105. The module using a ceramic antenna. Dragon-B antenna type: 2.4GHz Ceramic Antenna,please check the specification for the details. The antenna is not field replaceable. If the antenna needs to be changed, the certification should be re-applied. 5.3.Limited module procedure This module is not subject to Limited module use restrictions. 5.4.Trace antenna designs Not applicable 5.5.RF exposure considerations 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. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by2.1093. 5.6.Antenna The module using a ceramic antenna. Dragon-B antenna type: 2.4GHz Ceramic Antenna. The characteristics of the antenna is shown in the following figure. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual 5.7.Label and compliance information The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as:FCC ID:2AQV6DRAGON, Any similar wording that expresses the same meaning may be used. 5.8.Information on test modes and additional testing requirements The Dragon-B module is based on CYW20706UA2KFFB4GT chip.Support standard Bluetooth HCI UART commands. For the testing module on your product, user can refer to specification of the Bluetooth system on how to configure and evaluate the module. This https://www.bluetooth.org/en-us/specification/adopted-specifications. Bluetooth web specification official found site:

also can the on be 6.FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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 including interference that may cause undesired operation. interference, and (2) This device must accept any interference received, 7.ISED Compliance Information This device complies with Industry Canadas applicable licence-exempt RSSs. 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 dIndustrie Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes : 1) lappareil ne doit pas produire de brouillage; 2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si susceptible den compromettre le fonctionnement. le brouillage est 8:OEM/Integrators Installation Manual This module has been granted modular approval for mobile applications. OEM integrators for host products may use the module in their final products without additional FCC / IC (Industry Canada) certification if they meet the following conditions. Otherwise, additional FCC / IC approvals must be obtained. The host product with the module installed must be evaluated for simultaneous transmission requirements. The users manual for the host product must clearly indicate the operating requirements and conditions that must be observed to ensure compliance with current FCC / IC RF exposure guidelines. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-B Manual To comply with FCC / IC regulations limiting both maximum RF output power and human exposure to RF radiation, the maximum antenna gain including cable loss in a mobile-only exposure condition must not exceed, it includes one chip antenna with Max antenna gain 2 dBi A label must be affixed to the outside of the host product with the following statements:

This device contains FCC ID:2AQV6DRAGON This equipment contains equipment certified under IC:24210-DRAGON The final host / module combination may also need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device. If the final host / module combination is intended for use as a portable device (see classifications below) the host manufacturer is responsible for separate approvals for the SAR requirements from FCC Part 2.1093 and RSS-102. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual Dragon-C Manual Project:Dragon-C Bluetooth 5 BLE module Module name:Dragon-C Designed:Suzhou Pairlink Network Technology Ltd. Version V1.0 Note Create Date 2020/02/21 This document contains information that is proprietary to Pairlink . This document is commercially confidential and must NOT be disclosed to third parties without prior consent. The information provided herein is believed to be reliable. But production testing may not include testing of all parameters. Pairlink reserves the right to change information at any time without notification. All rights reserved Suzhou Pairlink Network Technology Ltd.

- 1 -

Dragon-C Manual Contents 1.Functional Characteristics.........................................................................................................- 4 -

1.1.Product Feature............................................................................................................. - 5 -

1.2. Main Application Domain............................................................................................. - 5 -

2.Electrical Specifications.............................................................................................................- 6 -

2.1.Absolute Ratings............................................................................................................ - 6 -

2.2.Recommended Operating Conditions........................................................................... - 6 -

2.3.Power Consumption...................................................................................................... - 7 -

3.Physical Parameters.................................................................................................................. - 8 -

3.1.Peripheral Interface....................................................................................................... - 8 -

4.Hardware design and use manual............................................................................................ - 9 -

4.1.Pin assignment and Pin descriptionab............................................................................- 9 -

4.2.Reference Design......................................................................................................... - 10 -

4.3.Interface Signal Function Selection............................................................................. - 11 -

4.4.Appearance and Dimensions.......................................................................................- 12 -

5.Regulatory Module Integration Instructions.......................................................................... - 13 -

5.1.List of applicable FCC rules.......................................................................................... - 13 -

5.2.Summarize the specific operational use conditions................................................... - 13 -

5.3.Limited module procedure.......................................................................................... - 13 -

5.4.Trace antenna designs..................................................................................................- 13 -

5.5.RF exposure considerations.........................................................................................- 13 -

5.6.Antenna........................................................................................................................- 14 -

5.7.Label and compliance information..............................................................................- 15 -

5.8.Information on test modes and additional testing requirements.............................. - 15 -

6.FCC Statement.........................................................................................................................- 15 -

7.ISED Compliance Information.................................................................................................- 15 -

8:OEM/Integrators Installation Manual ....................................................................................- 15 -

All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 1.Functional Characteristics Dragon-C is SOC module developed based on the Bluetooth 5 standards. the internal integration architecture ARM Cortex-M3 processor.It has the advantage of small volume, long distance transmission, strong anti-jamming capability, low cost.Specifically applied to Bluetooth low power control area,and suitable for various occasions short distance wireless communication. low power consumption, The Dragon-C is the optimal solution for voice, data, home automation, accessories and other applications that require a Bluetooth SIG standards-compliant interface. The Dragon-C supports a host command interface (HCI) through USB or UART and also supports PCM audio. The Dragon-C transceivers enhanced radio performance meets the most stringent industrial temperature application requirements for compact integration into mobile handset and portable devices. The module includes 20Mhz Crystal and 8Mb SPI flash. The module is also integrated with Ipex Connector. which can be used with the FPC antenna provided by Pairlink. Circuit block diagram of the module is shown in Figure 1. Figure 1: Dragon-C Circuit Block Diagram All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 1.1.Product Feature 1. Dragon-C under Bluetooth 5 specification. including BR/EDR/BLE. 2. Supports A2DP, AVRCP, HSP, HFP, GATT, SPP, HIDD, HIDH, ANCS, AMS, IAP2, PBAP, OBEX, WeChat, HomeKit, Wide band speech (WBS) 3. Support Beacon function. 4. Support OTA Upgrade, UART Upgrade. 5. I2S/PCM for BT audio 1.2. Main Application Domain 1: Bluetooth Printer/Scanning device 2: Home automation/ Intelligent lighting / Intelligent access control system. 3: Industrial telemetry / Industrial data collection. 4: Bluetooth and RS232 (RS485) serial data transfer. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 2.Electrical Specifications Integration architecture ARM Cortex-M3 processor 352KB RAM,848KB ROM,8Mbit Flash Include 8Mbit SPI FLASH, Memory size is optional Supports Cypress proprietary data rate up to 2 Mbps 2.1.Absolute Ratings Parameter Power Supply Current Consumption Storage temperature Working temperature ESD HBM ESD CDM Latch-up Min.

-0.3

-40

-30

-2K

-500 TBD Specification Typical 3.3

TBD 2.2.Recommended Operating Conditions Parameter Power Supply Min. 3.0 Specification Typical 3.3 Max.

+3.8 40

+150

+105

+2K

+500 TBD Max. 3.6 Digital I/O Characteristic(VDDIO=3.3V) Characteristics Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Symbo l VIL VIH VOL VOH Min. 2.0

VBAT-0.4V Specification Typical

Max. 0.8 0.4

Unit V mA V V mA Unit V Unit V V V V All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 2.3.Power Consumption Current consumption measured with 3.30V power on in VBAT. The following data is not accurate value, only for reference. SPP(EDR+LE) Conditions AVG Current Operational Mode Shutdown MCU idle + nodiscoverable MCU idle + discoverable Interval:500ms MCU active+discoverable Interval:500ms Connected+ MCU idle Connected+MCU active No data No data Connected + transfer data Low Energy(EDR+LE) Operational Mode Shutdown MCU idle + no Adv MCU idle + Adv Interval:500ms MCU active+Adv Interval:500ms Connected+ MCU idle No data Connected+MCU active No data Connected + transfer data Low Energy(only LE) Operational Mode Shutdown MCU idle + no Adv MCU idle + Adv Interval:500ms MCU active+Adv Interval:500ms Connected+ MCU idle Connected+MCU active Connected + transfer data 8 1.1 1.2 1.9 1.85 1.9 8.23 8 1.1 1.2 1.9 1.85 1.9 3.15 8 60 120 1.1 220 320 3.15 Unit uA mA mA mA mA mA mA Unit uA mA mA mA mA mA mA Unit uA uA uA mA uA uA mA Conditions AVG Current Conditions AVG Current All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 3.Physical Parameters Distance 50M 10M Parameter Performance Note Data Transfer (BLE) Environment: Sunny and open Dragon-C with cable Antenna Airspeed: 1Mbps AUDIO(BR/EDR) Environment: Sunny and open Dragon-C with cable Antenna Dimensions 16.8mm*11mm*2.6mm L*W*H RF Interface Dragon-C:Ipex Connector 50ohm impedance matching 3.1.Peripheral Interface 1 x I2S/PCM interface 1 x PUART interface with CTS/RTS 1 x HCI UART interface with CTS/RTS 1 x SPI interface with master/slave configurable 1 x I2C interface with master/slave configurable 12 x GPIO 1 x ADC input 4 x PWM interface All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 4.Hardware design and use manual 4.1.Pin assignment and Pin descriptionab Dragon-C Pin definition can refer to Figure 2. Pin Pin Name I/O POR Alternate Function Description Table 1:Module Pin Description Number 10 1,2,3,9,17

,18,26 VBAT GND 11 RESET State

Power Supply Connect to Ground ADI GND DI I,PU I,PU I I DIO DIO DIO DIO DIO RECOVERY UART_RTS UART_CTS UART_RXD P30 P25 P36 INPUT. Reset signal (active Low). Floating if not used SPI2 Master In Slave Out. For Test. RTS for HCI UART interface. NC if unused. CTS for HCI UART interface: NC if unused. Serial data input for the HCI UART interface. UART_TXD O,PU Serial data input for the HCI UART interface. P15/ADC_IN Floating GPIO:P15/ADC_IN P4/PUART_RX Floating Floating GPIO:P30 Floating GPIO:P25/P32 GPIO:P4/P24 PUART_TX Floating GPIO:P36/P38 P31/PUART_TX DIO Floating P34/I2S_WS DIO Floating P12 DIO Floating P29/I2S_DATA DIO Floating P28/I2S_SCLK DIO Floating P26 DIO Floating GPIO:P31 PUART_RX GPIO:P34 I2S_WS /PCM_SYNC GPIO:P12 I2S_DI/PCM_IN/I2C_SDA GPIO:P29 I2S_DO/PCM_OUT/I2C_SCL/PWM3 GPIO:P28 I2S_SCLK/PCM_CLK/PWM2 GPIO:P26/P11 PWM0 7 3 4 5 6 8 13 14 15 16 19 20 21 22 23 24 All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 25 P27/I2S_MCLK GPIO:P27/P33 I2S_MCLK/PWM1 a. For more GPIO function configuration questions, contact to Pairlink. b. During power-on reset, all inputs are disabled. Floating DIO 4.2.Reference Design The latest schematic and design examples, bill of material, and layout file are available from original developer . Contact us for details. Figure 2: Module Reference Design Circuit Description 1:VBAT supply voltage value is 3.0V-3.60V. 2:PIN12(Recovery) reserved for testing. 3:PIN11(RST_L) is Module Reset_Control (active Low) ,Keep floating if the user not use. 4:Reserve JP1 burning interface if the PCB board has enough space. 5:Dragon-C support GPIOs supermux,for more GPIO function configuration questions, please contact the Pairlink. 6:Only PIN8(P15) support ADC function. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 4.3.Interface Signal Function Selection Dragon-C not support GPIOs Supermux. IIC\IIS\PWM\SPI\ADC can't be configured at the same time. If the customer wants to use all functions, it can be assigned by Pairlink. Peripheral_UART P_UART_TX P_UART_RX PIN Number 19 PIN Name P31 PIN Number 15 PIN Name P4 IIC_SDA IIC_SCL PIN Number 21 PIN Name P12 PIN Number 22 PIN Name P29 SPI_CS

(SLAVE) Number PIN 24 PIN Name P26 SPI_CLK SPI_MOSI SPI_MISO PIN

(Mater and Salve ) PIN Name P36 Number 16

(Mater and Salve )

(Mater and Salve ) Number PIN 25 PIN Name P27 Number PIN 14 PIN Name P25 I2S_WS I2S_DATA I2S_SCLK I2S_MCLK Number PIN 20 PIN Name P34 Number PIN 22 PIN Name P29 Number PIN 23 PIN Name P28 Number PIN 25 PIN Name P27 PWM0 PWM1 PWM2 PWM3 Number PIN 24 PIN Name P26 Number PIN 25 PIN Name P27 Number PIN 23 PIN Name P28 Number PIN 22 PIN Name P29 IIC SPI IIS PWM HCI_UART HCI_UART_TXD HCI_UART_RXD HCI_UART_CTS HCI_UART_RTS PIN Number PIN Number PIN Number PIN Number 7 HCI_UART_ 6 HCI_UART_ 5 HCI_UART_ 4 HCI_UART_ PIN Name CTS PIN Name RTS PIN Name RXD PIN Name TXD All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 4.4.Appearance and Dimensions Figure 3 shows the size of the module.The components and prominent structure are not allowed put in this size range(16.8mm*11.0mm*2.60mm). The following land pattern size is recommended for user board design. However, user can modify it according PCB soldering conditions. Sufficient examination is necessary if use the modified land pattern. Figure 3: Mechanical Information All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 5.Regulatory Module Integration Instructions 5.1.List of applicable FCC rules This device complies with part 15.247 of the FCC Rules. 5.2.Summarize the specific operational use conditions This module can be used in household electrical appliances as well as lighting equipments. The input voltage to the module should be nominally 3.0~3.6VDC, Typical value 3.3VDC and the ambient temperature of the module should not exceed 105. The module with a I-pex connector, which can be used with the FPC antenna provided by Pairlink Dragon-C antenna type: 2.4GHz Dipole antenna The antenna is not field replaceable. If the antenna needs to be changed, the certification should be re-applied. 5.3.Limited module procedure This module is not subject to Limited module use restrictions. 5.4.Trace antenna designs Not applicable 5.5.RF exposure considerations 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. If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by2.1093. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 5.6.Antenna The module with a I-pex connector, which can be used with the FPC antenna provided by Pairlink Dragon-C antenna type: 2.4GHz Dipole antenna The characteristics of the FPC antenna is shown in the following figure. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual 5.7.Label and compliance information The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as:FCC ID:2AQV6DRAGON, Any similar wording that expresses the same meaning may be used. 5.8.Information on test modes and additional testing requirements The Dragon-C module is based on CYW20706UA2KFFB4GT chip.Support standard Bluetooth HCI UART commands. For the testing module on your product, user can refer to specification of the Bluetooth system on how to configure and evaluate the module. This https://www.bluetooth.org/en-us/specification/adopted-specifications. Bluetooth web specification official found site:

also can the on be 6.FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. 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 including interference that may cause undesired operation. interference, and (2) This device must accept any interference received, 7.ISED Compliance Information This device complies with Industry Canadas applicable licence-exempt RSSs. 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 dIndustrie Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes : 1) lappareil ne doit pas produire de brouillage; 2) lutilisateur de lappareil doit accepter tout brouillage radiolectrique subi, mme si susceptible den compromettre le fonctionnement. le brouillage est 8:OEM/Integrators Installation Manual This module has been granted modular approval for mobile applications. OEM integrators for host products may use the module in their final products without additional FCC / IC (Industry Canada) certification if they meet the following conditions. Otherwise, additional FCC / IC approvals must be obtained. The host product with the module installed must be evaluated for simultaneous transmission requirements. The users manual for the host product must clearly indicate the operating requirements and conditions that must be observed to ensure compliance with current FCC / IC RF exposure guidelines. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Dragon-C Manual To comply with FCC / IC regulations limiting both maximum RF output power and human exposure to RF radiation, the maximum antenna gain including cable loss in a mobile-only exposure condition must not exceed, it includes one chip antenna with Max antenna gain 0 dBi A label must be affixed to the outside of the host product with the following statements:

This device contains FCC ID:2AQV6DRAGON This equipment contains equipment certified under IC:24210-DRAGON The final host / module combination may also need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device. If the final host / module combination is intended for use as a portable device (see classifications below) the host manufacturer is responsible for separate approvals for the SAR requirements from FCC Part 2.1093 and RSS-102. All rights reserved Suzhou Pairlink Network Technology Ltd.

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Suzhou Pairlink Network Technology Ltd. Room 117, Wangyuan, No. 55, Suhong West Road, Suzhou Industrial Park,Suzhou,China Declaration of Authorization We Name: Suzhou Pairlink Network Technology Ltd. Address: Room 117, Wangyuan, No. 55, Suhong West Road, Suzhou Industrial Park,Suzhou,China Declare that:

Name Representative of agent: Marlin Chen Agent Company name: MRT Technology (Suzhou) Co., Ltd Address: D8 Building, Youxin Industrial Park, No.2 Tian'edang Rd., Wuzhong Economic Development Zone City: Suzhou Country: China is authorized to apply for Certification of the following product(s):

Product: Bluetooth 5 BLE module Model: Dragon-B, Dragon-C Brand: Pairlink FCC ID: 2AQV6DRAGON IC: 24210-DRAGON Sincerely, Name: Cai Yi o Title: General Manager Date: 2020-03-26

Suzhou Pairlink Network Technology Ltd. Date: 31-Mar-20 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 Re: Suzhou Pairlink Network Technology Ltd. FCC ID: 2AQV6DRAGON FCC Part 15C Certification Confidentiality Request Gentlemen:

This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. Suzhou Pairlink Network Technology Ltd. requests that the following documents regarding this submission for FCC ID: 2AQV6DRAGON be kept confidential:

Exhibit Type Block Diagram Schematics Operation description Those documents contain detailed system and equipment description and related information about the product which Suzhou Pairlink Network Technology Ltd. considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, Suzhou Pairlink Network Technology Ltd. considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Yours Sincerely, Name Cai Yi TitleGeneral Manager CompanySuzhou Pairlink Network Technology Ltd.

~ Applicant Grantee Suzhou Pairlink Network Technology ee

- lan electronic display (see KDB Publication 784748):

FCC ID: eae cr ON | os

: Section 15. 212 Modular Thansinitters ul

| Request for Risdiier Anpeatal Request for Limited Modular Approval

| Requirements Device Conditions | Comply (Y/N) |

Single Modular Approval Requirements The radio elements must have the radio The module has its own RF shielding:

frequency circuitry shielded. Physical Just antenna and antenna connector 4 components and tuning capacitor(s) may _| outside the shielding. Please reference the Y be located external to the shield, but must | Photo. be on the module assembly;

The module must have buffered All modulation and data input(s) are modulation/data inputs to ensure that the | buffered. The EUT has buffered data device will comply with Part 15 inputs, it is integrated on chip. x requirements with any type of input signal; Y The module must contain power supply [Have its own power supply regulation. 3 {regulation on the module; Y The module must contain a permanently | The EUT meets the FCC antenna To attached antenna, or contain a unique Requirements. Please reference antenna connector, and be marketed and Instructions in User Manual. 4 operated only with specific antenna(s), per Y Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b);

| : It has been performed the testing as a The module must demonstrate compliance | stand-alone and then confirmed the in a stand-alone configuration; compliance. Please reference the test setup. 5 Y The module must be labeled with its 'Yes. The label information is on the top of permanently affixed FCC ID label, or use {the shielding. y To ="

Instructions in User Manual The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the 7 integration instructions by the grantee; Y

Please refer the Maximum Permissible The module must comply with RF Exposure Information. exposure requirements. A limited modular approval may be granted for single or split modular transmitters that do not comply with all of the above requirements, e.g., shielding, minimum signaling amplitude, buffered modulation/data inputs, or power supply regulation, if the manufacturer can demonstrate by alternative means in the application for equipment authorization that the modular transmitter meets all the applicable Part 15 requirements under the operating conditions in which the transmitter will be used. Limited modular approval also may be granted in those instances where compliance with RF exposure rules is demonstrated only for particular product configurations. The applicant for certification must state how control of the end product into which the module will be installed will be maintained such that full compliance of the end product is always ensured. Signature : (as I Name/Title: Cai Yi/General Manager Company Name: Suzhou Pairlink Network Technology Ltd. Date: 03/26/2020