Speech Recognition Module User Manual Make sure to read the safety precautions before installing and using the product and always use the product correctly. This information is intended to keep the user and installer safe and prevent property damage. After reading the user manual, keep it in a place where users can access it at any time. PWSAF2 (Speech Recognition Module) Ver.1.
TABLE OF CONTENTS 1. Introduction.......................................................................................................... 3 1.1 Overview..........................................................................................................................................................3 1.2 Main Functions and Dimensions......................................................................................................................3 2. Hardware Composition......................
1. Introduction 1.1 Overview This module is an integrated microprocessor that supports Wi-Fi wireless communication and air conditioner voice recognition, and is designed to be able to operate as an independent communication module. It supports various interfaces, allowing it to connect with a variety of external devices. In addition, its cost-effective performance based on RTOS makes it suitable for IoT devices.
2. Hardware Composition 2.1 Block Diagram 1p 4p 5V Figure 2-1 Block Diagram 2.2 Command Information Air conditioner uses the Main PCBA and LGAP, for other internal communication, see block diagram in Fig. 2-1.
3. Electrical Data 3.1 Absolute maximum ratings Table 3-1 Absolute maximum ratings. Exceeding one of the absolute maximum ratings can lead to performance degradation or damage. Values are conditions that apply one at a time. Rating Min. Max. Unit Supply voltage 4.5 17 V 17 dBm +70 °C Input RF level Storage temperature -20 3.2 Electro Static Discharge (ESD) Wi-Fi modules can withstand ESD voltages up to 1000 V HBM (Human Body Model).
3.4.2 Power consumption This data measures the power consumption in a scenario where the voice recognition module is in operation mode and the voice recognition function is being used. Conditions: Tamb = 25°C, VCC = 12V Table 3.4 Power consumption in Normal mode. *Output power value WLAN module's antenna port Typ. Output value. Max Output Power* Typ. Power Consumption Comments +17 dBm 1100 mW 11 Mbps, 320 MHz, when voice is speaking 3.
4. Interface 2Ch. MIC input Spk Power/UART Figure 4-1 Voice recognition module pin Connector type Description CN_MAIN 6 pin 2.00 mm pin header Power Supply and UART (Application dependent) CN_MIC1 3 pin 2.00 mm pin header Left MIC input CN_MIC2 3 pin 2.00 mm pin header Right MIC input CN_SPK 2 pin 2.00 mm pin header Mono Speaker output (1.
5. Applied Information 5.1 Power Supply Device The voice recognition module must be powered by a DC 5 V or 12 V constant voltage supply unit. 5.2 FLASH Out of the speech recognition module's 16 MB, 16 MB is available for a user application. 5.3 RTOS boot RTOS booting finishes about 10 seconds before the console interface can be used. 5.4 UART Serial Interface It has two UART interfaces for communicating with the speech recognition module. 5.4.1 UART 1 This interface is a user application. 5.4.
6. Package Specifications 40 mm 10 mm 6.1 Mechanical overview of speech recognition module circuit board 60 mm 6.2 Label attached to the speech recognition module P/no, S/W version information and MAC address are displayed. 1. PCB Ass’y P/no 2. MAC Address 3. S/W P/no 4. S/W Version 5. CRC Check Sum 6. Byte Check Sum 7. KC certification number 8.
7. Compliance with Standards 7.1 IEEE / IETF Table 7.1 Relevant IEEE Standards Standard Revision Description 802.11 802.11 R2003 WLAN MAC& PHY 802.11b 802.11 R2003 High rate DSSS (5,5/11 Mbit/s) 802.11d 802.11 R2003 Operation in different regulatory domains 802.11e D9,0 Aug. 2004 QoS enhancements 802.11g -2003 Extended rate PHY (ERP-PBCC, DSS-OFDM) 802.11i -2004 Security enhancements 802.11k Draft 11.0, 2008 Wireless network management 802.
8. Product specifications Model Equipment Operating Temperature Power usage Frequency Output PWFSA2 Specific low-power wireless data communication system (Wireless devices for wireless data communication system) -20 °C ~ 70 °C DC 12.0 V / 5.0 V Transmit 2412 MHz ~ 2462 MHz (11b, 11g, 11n_HT20) To 2412 MHz ~ 2462 MHz (11b, 11g, 11n_HT20) 10 mW Name of company receiving conformity assessment LG Electronics, Inc. Manufacturer LG Electronics, Inc.
[USA ] FCC Notice 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.
[CANADA] Industry Canada Statement This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.
Regulatory notice to host manufacturer according to KDB 996369 D03 OEM Manual v01> List of applicable FCC rules This module has been granted modular approval as below listed FCC rule parts. –– FCC Rule parts 15C(15.247) Summarize the specific operational use conditions –– The OEM integrator should use equivalent antennas which is the same type and equal or less gain then an antenna listed in 2.7 in this instruction manual.
Étiquetage du produit final (IC) Le module PWFSA2 est étiqueté avec sa propre identification FCC et son propre numéro de certification IC. Si l’identification FCC et le numéro de certification IC ne sont pas visibles lorsque le module est installé à l’intérieur d’un autre dispositif, la partie externe du dispositif dans lequel le module est installé devra également présenter une étiquette faisant référence au module inclus.
