FCC ID: 2A73EXHCPHB04B USB Wireless CNC Remote Control

PHB04B-4 Wireless remote instructions CNC system DLL PHB04B.DLL PHB04B Wireless remote The remote controller is connected to the computer through the USB receiver, and the key data is transmitted to the USB receiver, which is connected through phb04b DLL transmits keys to CNC system software; The CNC system transmits the data to be displayed to the USB receiver, and the receiver returns the data to the remote controller Thus, two-way communication is realized Currently phb04b DLL only supports windows platform Phb04b wireless remote control, supporting 13 keys;

6 axes, x, y, Z, a, B, C; 4 magnification: 1X, 10100x, 1000x LCD data display is supported. Users can freely define the contents of LCD display, with a maximum of 59 ASCII characters With 100ppr handwheel. RF adopts 433MHz ism standard frequency band, data encryption transmission, fast transmission speed, automatic detection of interference and frequency hopping, strong anti-interference Users use phb04b The basic process of DLL programming is as follows:

a) Load phb04b DLL and locate functions. The method depends on the specific programming language. b) Call xinit function to initialize c) Call xsendoutput function to transmit data to remote controller d) Call xgetinput function to receive data e) Call the xopen function to open the device f) Call xclose function to shut down the device FCC WARNING 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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction

Produce name:

USB Wireless CNC Remote Control Model:PHB04B-4 FCC ID: 2A73EXHCPHB04B Trademark:

Manufacturer:

Made in China ChengDu XinHeChenng Technology Co.,Ltd 40mm*25mm 2cm

C5266091_X10_Ed.2

< ChengDu XinHeCheng Technology Co.,LTD >

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for Confidentiality FCC ID: 2A73EXHCPHBO4B To Whom It May Concern, Date: 01/08/2022 Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFRO.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality L Confidentiality NOTE 2 Short-Term ID Label/Location Attestation Statement L External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos I 1B) 1B Parts List / Tune Up / BOM List RF Exposure Info Operational Description

Cover Letter(s) FCC Software Security Requirements for UNII devices

NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. a In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. 1/1 C5266091_X10_Ed.2 It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Xing wei He, Name: Xingwei He Title: Manager i/1

ChengDu XinHeCheng Technology Co.,LTD Family models declaration letter. 8/1/2022 We Technology Co.,LTD Building 1, No. 1919, Shuangyan Company: ChengDu XinHeCheng Address:

Province, China Product: USB Weless CNC Remote Control Model Name: PHB04B-4 F uly Model: PHB04B-6,WMPG-4,WMP WHB03B,WHB04B-4,WHB04B-6 G-6, Road, Wenjiang District, ChengDu City, Sichuan All the model are the same circuit and RF module,exceptthe button icon stickers are different. Thanks Sincerely, SignatueXi

[Name] Xi

[Title] Manager ChengDu XinHeCheng Technology Co., ngw ei He LTD ::

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C5266091_X8_Ed.1 Letter of Authorization

< ChengDu XinHeCheng Technology Co.,LTD >

Company: ChengDu XinHeCheng Technology Co.,LTD Address: Building 1, No. 1919, Shuangyan Road, Wenjiang District, ChengDu City, Sichuan Province, China Product Name: USB Wireless CNC Remote Control Model Number: PHB04B-4,PHB04B-6,WMPG-4,WMPG-

6,WHBO3B,WHBO04B-4,WHBO4B-6 FCC Identifier: 2A73EXHCPHB04B We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all, acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Xingwei He Date: 01/08/2022 Title: Manager Signature of applicant: Xintuei He 1/1

ChengDu XinHeCheng Technology Co.,LTD Building 1, No. 1919, Shuangyan Road, Wenjiang District, ChengDu City, Sichuan Province, China Date: 8/1/2022 FCC (D: 2A7ZEXHCPHBO4B Model Number:

PHBO4B-4,PHBO4B-6,WMPG-4,WMPG-6,WHBO3B,WHBO4B-4,WHBO4B-

6 TO:

Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, ChengDu XinHeCheng Technology Co.,LTD declare that this EUT (FCC ID:

2A73EXHCPHBO4B) will conduct FCC compliance testing, the sDOC part recognized test lab(Shenzhen NTEK Testing Technology Co., Ltd.). 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bastar District, Shenzhen 518126 P.R. China ChengDu XinHeCheng Technology Co.,LTD Building 1, No. 1919, Shuangyan Road, Wenjiang District, ChengDu City, Sichuan Province, China Please contact me if you have any question. Sincerely, Xinqwei He

(Signed) Name / Title: Xingwei He / Manager Company: ChengDu XinHeCheng Technology Co.,LTD Address: Building 1, No. 1919, Shuangyan Road, Wenjiang District, ChengDu City, Sichuan Province, China Phone: 13568946750 Email: wixhc-sale2@cdxhctech.com