WH2-2610DRemote Transmitter

User Manual Instructions When dishes are ready, the kitchen staff can alert the server by punching the number of the server (same as the number in the back of the watch) and then punching “SND”. FCC Part 15.19 Warning Statement 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. FCC Part 15.21 Warning Statement NOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.

APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D EXTERNAL PHOTOS

38*47.5MM Made in China MODEL: MMC-N818 NAME: Pager N818 Made in China MODEL: MMC-NC8 NAME: Pager NC8 FCC ID: WH2-2610S MODEL: 2610S Made in China FCC ID: WH2-2610D MODEL: 2610D Made in China 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. Made in China MODEL: T21 FCC ID: WH2-T21 Made in China MODEL: MMC-2611T FCC ID: WH2-2611TA Made in China MODEL: MMC-R800 NAME: Coaster R800 Made in China MODEL: MMC-R600 NAME: Coaster R600 Made in China MODEL: 2611CA FCC ID: WH2-2611CA MMCall FCC ID: WH2-2610N3 MODEL: HY-2610N3 Made in China FCC ID: WH2-2610E MODEL: HY-2610E Made in China 38*17.75MM25.4*8MM

APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D INTERNAL PHOTOS

Palm transmitter working principle Single chip U1 is as the main control unit, to manage and control those module functions of keypad input, LED screen display, keypad number and transmitting board. To save power consumption, usually the single chip will turn off all the unnecessary function modules, and keep in a dormancy status of low power consumption. When press the key button, the single chip is activated, and recognize the key value, through the U3’s driver, the number information will be displayed on the LED screen. Input the digit and press #, there is a long voice prompt, at the same time power on the transmitter to make it work, after a delay of 50mS, in the output end, there is a series of modulated impulse added to the modulated end of the transmitting board, to make the 72.25MHz crystal oscillate and become the FM wave of ±4.5KC. The six times harmonic wave 433.5MHz of 72.25MHz crystal oscillate frequency, through the SAW filter wave’s modulated signal, via T2, amplified by T2 tube, through the low pass filter, to the antenna and finally send it. After the modulated impulse of the single chip is output, close the transmit and display, the single chip will be back to the dormancy status and wait for activation next time.

FCC PART 15.231(a) TEST REPORT LOW POWER UNLICENSED TRANSMITTER Applicant SHENZHEN CONSTANT ELECTRONICS CO., LTD. Address F5, NO. 2 BLDG., EAST BRIGHT INDUSTRY REGION NO. 83 DABAO ROAD BAO'AN 33 DISTRICT SHENZHEN, GUANGDONG China FCC ID WH2-2610D Product Description REMOTE Date Sample Received 2/25/2015 Date Tested 3/9/2015 Tested By Cory Leverett Approved By Sid Sanders Test Results Pass Fail Report Number Version Number Description Issue Date 1987YUT15TestReport.docx Rev.1 Initial Issue 3/9/2015 THE ATTACHED REPORT SHALL NOT BE REPRODUCED EXCEPT IN FULL WITHOUT THE WRITTEN APPROVAL OF TIMCO ENGINEERING, INC. 849 NW STATE ROAD 45 NEWBERRY, FL 32669 USA PH: 888.472.2424 OR 352.472.5500 FAX: 352.472.2030 EMAIL: [email protected] HTTP://WWW.TIMCOENGR.COM APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D REPORT: S\SZ CONSTANT_WH2\1987YUT15\1987YUT15TestReport.docx Page 2 of 13 TABLE OF CONTENTS GENERAL REMARKS ....................................................................................................... 3 REPORT SUMMARY ......................................................................................................... 4 TEST ENVIRONMENT...................................................................................................... 4 TEST SETUP ................................................................................................................... 4 EUT SPECIFICATION ...................................................................................................... 5 MANUFACTURE DECLARATION OF COMPLIANCE WITH PART 15.231(a) ...................... 6 TEST PROCEDURES ....................................................................................................... 7 TRANSMITTER DEACTIVATION TIME ............................................................................. 8 RADIATION INTERFERENCE ........................................................................................... 9 CALCULATION OF EUTY CYCLE .................................................................................... 11 OCCUPIED BANDWIDTH .............................................................................................. 12 TEST EQUIPMENT LIST ................................................................................................ 13 APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D REPORT: S\SZ CONSTANT_WH2\1987YUT15\1987YUT15TestReport.docx Page 3 of 13 GENERAL REMARKS The attached report shall not be reproduced except in full without the written permission of Timco Engineering Inc. Summary The device under test does: fulfill the general approval requirements as identified in this test report not fulfill the general approval requirements as identified in this test report Attestations This equipment has been tested in accordance with the standards identified in this test report. To the best of my knowledge and belief, these tests were performed using the measurement procedures described in this report. All instrumentation and accessories used to test products for compliance to the indicated standards are calibrated regularly in accordance with ISO 17025 requirements. I attest that the necessary measurements were made, under my supervision, at: Timco Engineering Inc. 849 NW State Road 45 Newberry, Fl 32669 Authorized Signatory Name: Cory Leverett Project Manager Date: 3/9/2015 Table of Contents APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D REPORT: S\SZ CONSTANT_WH2\1987YUT15\1987YUT15TestReport.docx Page 4 of 13 REPORT SUMMARY Disclaimer The test results only relate to the item tested. Applicable Rule(s) FCC Pt 15.231(e), Pt 15.209, Pt 15.207, ANSI C63.4: 2009 Related Report(s) or Approval(s) NA TEST ENVIRONMENT Test Facility The test sites are located at 849 NW State Road 45 Newberry, FL 32669 USA. Test Condition: Temperature: 24 -26ºC Relative humidity: 50-65 % TEST SETUP Test Exercise (e.g software description, test signal, etc.): The EUT was operated in a normal mode to determine the duty cycle and then placed in continuous transmit mode of operation for the radiated emissions. Deviation from the standard(s) No deviation from the standard(s) Modification to the EUT: No modification was made to the EUT. Supporting Peripheral Equipment Not applicable. The device is a stand-alone remote control radio. Table of Contents APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D REPORT: S\SZ CONSTANT_WH2\1987YUT15\1987YUT15TestReport.docx Page 5 of 13 EUT SPECIFICATION Applicant SHENZHEN CONSTANT ELECTRONICS CO., LTD. Description REMOTE FCC ID WH2-2610D Model Number MMC-2610D Frequency Range 433.5 – 433.5 MHz EUT Power Source 110–120Vac/50– 60Hz DC Power Battery Operated Exclusively Test Item Prototype Pre-Production Production Type of Equipment Fixed Mobile Portable Table of Contents APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D REPORT: S\SZ CONSTANT_WH2\1987YUT15\1987YUT15TestReport.docx Page 6 of 13 MANUFACTURE DECLARATION OF COMPLIANCE WITH PART 15.231(a) Item Description Yes No 1 Does this device transmit a signal that is only used to control another device? X 2 Does this device send data with this control signal? X 3 Does this device send data? Data is, things like: temperature, wind direction, fluid amount, rate of flow, etc. X 4 Does this device transmit continuously or automatically? X 5 If manually operated does this device stop transmitting within 5 seconds of releasing the button? X 6 If automatically operated does it deactivate 5 seconds after activation? NA 7 Does it transmit at regular predetermined intervals? X 8 Does it poll or send supervisory information? X If yes does it do a system integrity check? How often? NA 9 Is this a fire, security or safety of life device? X If YES does the device stop transmitting after the alarm condition is satisfied? NA 10 Duty cycle: Maximum on-time? NA If YES, on-time in 100 ms? If Other, please specify here NA O…

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APPLICANT: SHENZHEN CONSTANT ELECTRONICS CO., LTD. FCC ID: WH2-2610D TEST SET UP PHOTOS