UM WEM-TK USER MANUAL Model: TL8715AQ ARK Intelligence Co., Ltd. www.ark-intell.
DISCLAIMER ARK Intelligence provides this document “as is”, without warranty of any kind. ARK Intelligence may make improvements and/or changes in this document or in the product described in this document at any times. This document could include technical inaccuracies or typographical errors. REVISION HISTORY Revision Date Remark Version 1.0a 2020/10/22 Initialed version Version 1.
TABLE OF CONTENT PRODUCT OVERVIEW.......................................................................................................................................................4 PRODUCT FEATURES........................................................................................................................................................ 4 PRODUCT DESCRIPTION........................................................................................................................................
PRODUCT OVERVIEW ARK WEM-TK is the highly integrated camera main board for video / audio processing application; It provides all-in-one system on module design for customers to quickly and easily generate their product production with saving most cost on time and R&D resource. PRODUCT FEATURES - WEM mini module based design Low power consumption, low heat temperature Integrate several main stream HD CIS for camera vision application Wi-Fi single-on-chip system platform, providing H.
Circuit description: System circuit consist - Wi-Fi module, including RTL8715AQ SoC and 40MHz Wi-Fi Xtal performing main system features with 802.11n wireless connectivity - The carrier board carries Wi-Fi module and own DC/DC conversion circuit to downgrade external +12Vdc to +3.
DC power input IPEX4 for external antenna Wi-Fi module microSD slot RESET microUSB 6
INSTALLATION - Power on system via external +12Vdc / 1A power source Long-press at least 5-sec to force system to enter RESET mode Using smartphone to search SSID “Vivo_AP” to connect directly to complete system pairing Configure related parameters as desired Wi-Fi setting need to select target SSID (2.
Wireless connectivity Built-in 802.11n 2.4GHz Wi-Fi Night vision Built-in IR LED for nigh vision illumination Built-in ICR auto-switching Day and Night modes Event trigger DingDong / Demolition / PIR Motion // BATTERY LOW Event action Melody / Siren / FFF / Push notification / Local recording Edge recording microSD slot (max. 256GB) CIS Board CIS SOI F37 1080p CMOS Image Sensor (optional) Lens MegaPixel f1.75mm / F2.0 Optical F.O.V. D/H/V: 200 / 197.6 / 97.
Additional testing Part15SubpartB disclaimer The grantee should include a statement that the modular transmitter is only FCC authorized forthe specific rule parts (i.e.，FCC transmitter rules )listedonthegrant， and that the host productmanufacturer is responsible for compliance to any other FCC rules that apply to the host notcovered by the modular transmitter grant of certification .
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. Co-location warning: This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Limited Channels fixed for use in the US: IEEE 802.11b or 802.11g or 802.11n(HT20) operation of this product in the U.S. is firmware-limited to Channel 1 through 11.
FCC RULES The WEM-TK module is applicable to the FCC rules as following: 1. Basic RF characters - Working frequency WEM3 series (2.4GHz single band): 2.4GHz：2.412 ~ 2.462 GHz - - 2. 3. Wi-Fi standard WEM3 series: IEEE 802.11b/g/n Data transmission rate 11b: 1, 2, 5.5, 11 Mbps 11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps 11n HT20_MCS7: 65 Mbps 11n HT40_MCS7: 135 Mbps Antenna type Onboard IPEX-4 connector for external antenna Wi-Fi TX output power MODULATION typical PWR UNIT 2.
reviews of detailed test data or host designs, especially RF exposure evaluation part. RF EXPOSURE CONSIDERATIONS FCC Radio Frequency Exposure WARNING: The WEMTK device radiates radio frequency energy at a level below the United States FCC radio frequency exposure limits. Nevertheless, this device should be used in such a manner that the potential for human contact during normal operation is minimized.
- Efficiency: >50% Polarization: linear Input impedence: 50 ohm Antenna size: 30.6 x 11.2 x 0.6 mm / cable length 90mm / cable type diameter 0.81 Return loss S11(dB) / VSWR V4.0 Frequency (MHz) S11 VSWR 2400 -12.6 1.6 2450 -21.6 1.2 2500 -11.3 1.7 V1.0 Frequency (MHz) Efficiency (dB) Efficiency (%) Peak Gain (dBi) 2400 MHz -2.55 55.65 3.08 2450 MHz -1.97 63.57 3.69 2500 MHz -2.41 57.45 2.90 Trace antenna designs - Condition: free space Antenna type: PIFA Frequency range: 2.
LABEL AND COMPLIANCE INFORMATION We promise to continue compliance of WEM-TK module to the FCC rules; we keep to advise our clients’ host product with a physical or e-label stating “Contain FCC ID” on their finished products.
FCC Radiation Exposure Statement: 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.
