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Regulatory Module Integration Instructions

This WDN220M 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 user’s 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.

• To comply with FCC / IC regulations limiting both maximum RF output power and human exposure to RF

radiation, use this module only with the included onboard antenna.

• A label must be affixed to the outside of the host product with the following statements:

Product Name : WDN220M

Contains FCCID: A3LWDN220M

Contains IC: 649E-WDN220M

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.

Version 1.0 Xuguang Tech. page 1 of 9

Summary of content (9 pages)

PAGE 1
Regulatory Module Integration Instructions This WDN220M 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.
PAGE 2
Device Classifications Since host devices vary widely with design features and configurations module integrators shall follow the guidelines below regarding device classification and simultaneous transmission, and seek guidance from their preferred regulatory test lab to determine how regulatory guidelines will impact the device compliance. Proactive management of the regulatory process will minimize unexpected schedule delays and costs due to unplanned testing activities.
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Simultaneous Transmission Evaluation This module has not been evaluated or approved for simultaneous transmission as it is impossible to determine the exact multi-transmission scenario that a host manufacturer may choose. Any simultaneous transmission condition established through module integration into a host product must be evaluated per the requirements in KDB447498D01(8) and KDB616217D01,D03 (for laptop, notebook, netbook, and tablet applications).
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OEM Instruction Manual Content Consistent with §2.909(a), the following text must be included within the user’s manual or operator instruction guide for the final commercial product (OEM-specific content is displayed in italics.) Operating Requirements and Conditions: The design of ( WDN220M) complies with U.S. Federal Communications Commission (FCC) guidelines respecting safety levels of radio frequency (RF) exposure for Mobile devices.
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si le brouillage est susceptible d’en compromettre le fonctionnement. Cet équipement est conforme aux limites d’exposition aux rayonnements énoncées pour un environnement non contrôlé et respecte les règles les radioélectriques (RF) de la FCC lignes directrices d’exposition et d’exposition aux frequencies radioélectriques (RF) CNR-102 de l’IC. Cet équipement émet une énergie RF très faible qui est considérée conforme sans évaluation du débit d’absorption spécifique (DAS). Version 1.0 Xuguang Tech.
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Operation Description of WDN220M 1. Introduction WDN220M is a Wi-Fi module compliant with IEEE802.11 b/g/n MAC/baseband/radio optimized for low-power applications. The core chipset is from MTK, part number MT7603UN. 2. Hardware Architecture: 2.1 Main Chipset Information Item IEEE802.11 b/g/n mac/baseband/radio Vendor Part Number MTK MT7603UN 2.2 Circuit Block Diagram The major internal and external block diagram of WDN220M is illustrated in Figure 1-1. 2400-2483.5MHz 2400-2483.
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- Time base of the RF frequency For IF and RF frequency, a crystal (40MHz) is a clock reference. - Synthesizer Synthesizer inside Transceiver. Internal voltage controlled oscillator (VCO) provides the desired LO Signal base on the phase-locked loop (PLL) with a relatively wide tuning range for this application. Internal fractional nPLL allows support for a wide range of reference clock frequencies - WIFI Transmission Baseband data is modulated and up-converted to the 2.4GHz ISM.
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- 802.11n+HT20 spec - 802.11n+HT40 spec -Output Power tolerance Output power ±2.5dB Version 1.0 Xuguang Tech.
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  Recommended operating conditions Min Typ. Max Unit Operating voltage 4.5 5 5.5 V Operating temperature(ambient) -20 25 50 °C AS Information Company Name: CHENGDU XUGUANG TECHNOLOGY CO.,LTD. FAX: +86-28-84841628 Tel: +86-28-84841628 Add: 2 section of park road Longquanyi Chengdu China  Certification information 1) Name(Model name): WDN220M 2) Certification ID: MSIP-CRM-SEC-WDN220M 3) Company Name: 4) Production date: 5) Vendor:Chengdu Xuguang. China Version 1.0 Xuguang Tech.