FCC ID: 2A8VY-JT-932 Wireless Calling System

USER'S MANUAL 1. On/off operation 1.1. Place all disc extensions on the powered charging base, and then the extension number LED will light up to complete the boot operation. 1.2. Place all the disc extensions on the powered base, and then input "0" from the keyboard and short press the Callkey, and then the extension number LED light will go out to complete the shutdown operation. 2. Function setting operation flow 2.1 Short press the Function key to enter the password verification interface "_._._._.", enter the four-digit password to enter the mode selection interface, the default screen flashes "F1". 2.2. Short pressUp/Downkey or number to select function mode "F0-F9". 2.3. Short pressEnterkey to enter the setting mode. 2.4. Short press Return key to return to mode selection, the screen displays "F0-F9". 2.5. Short press theFunctionkey to exit the setting mode, the standby screen displays "----". Note: Please complete other function settings (such as reminder duration, flash frequency, vibration frequency, etc.) before setting the extension number. After the function is changed, the extension number must be reset to be valid!

3. Menu function operation process 3.1.F0Extension reminder time setting Enter the setting mode, enter "00-99" seconds ("00" means unlimited time), short press the Confirmkey to save, and the extension will be valid after resetting the number. 3.2.F1Extension number setting 3.2.1. Enter the setting mode, enter the extension number "1-9999" and short press the Call key, the keyboard screen starts to flash at this time, immediately remove the extension and place it directly above the infrared communication position of the keyboard (the left side of the LED screen) 10 Induction is performed at the centimeter, and after the extension beeps twice and flashes, it indicates that the setting is successful. 3.2.2. Then you can re-enter the number to set the next extension, until all the extensions

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are set up, short press the Return key to exit. 3.3.F2 Extension flash frequency setting Enter to set the current frequency of the default screen flashing, enter "0/1/2/3/4" and short press the Enterkey to save, ("0" off, "1" low speed, "2" medium speed, "3" high speed, 4 gradient), the extension will take effect after resetting the number. 3.4.F3Extension buzzer frequency setting Enter to set the current frequency of the default screen flashing, enter "0/1/2/3" and short press the Enter key to save, ("0" off, "1" low speed, "2" medium speed, "3" high speed), extension It is valid after resetting the number. 3.5.F4Extension vibration frequency setting Enter to set the current frequency of the default screen flashing, enter "0/1/2/3" and short press theEnterkey to save, ("0" off, "1" low speed, "2" medium speed, "3" high speed), extension It is valid after resetting the number. 3.6.F5Extension alarm time setting When entering the setting, the screen flashes for the current time, enter "01-30" and short press the OK key to save. When the extension exceeds the keyboard signal coverage and the duration exceeds the set time, it will automatically vibrate/buzz/flash to remind you , The extension is valid after resetting the number. Note: When set to "0", the out-of-bounds alarm function will be closed. 3.7.F6Extension service countdown setting When entering the setting, the screen flashes the current time, enter "0-99" and short press the Enterkey to save, and the extension will be valid after resetting the number. 3.8. [F7Channel ID setting of meal taker When entering the setting, the screen flashes the current channel ID, enter "01-99" the new channel ID and short press theEnterkey to save, the default is "01", and the extension is valid after resetting the number. 3.9.F8Keyboard password setting of meal taker 3.9.1 Enter the setting and the screen flashes "0.0.0.0.", enter the four-digit new password and press the Ente key to save. 3.9.2. The super password is "2580", which has the highest authority, please do not disclose to others. 3.10.F9 Frequency setting of meal taker When entering the setting, the screen flashes the current frequency, enter "01-31" and press the Enterkey to save, the default is "01", and the extension is valid after resetting the number.

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FCC ID:2A8VY-JT-932 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.

Product Number: HN0433-5501SM Product Name: Antenna Index:

1. Specification / Page 2 2. Characteristics and Reliability Test / Page 3 3. Antenna - S Parameter Test Data / Page 4 4. Antenna - Radiation Pattern Test Data / Page 5 5. Mechanical Drawing / Page 6 Page 1 Version: 1.0 Issue Date: 2020-02-27 Product Number: HN0433-5501SM Product Name: Antenna 1. Specification Sample Photo A. Electrical Characteristics Frequency 433 MHz S.W.R.

<= 2.0 @ 433 MHz Antenna Gain 2dBi Polarization Impedance Linear 50 Ohm B. Material & Mechanical Characteristics Material of Radiator Cu Material of Plastic Cable Type Connector Type Connector Pull Test Body: TPE Hinge: ABS Holder: PC RG-178 SMA Male

>= 3Kg Connector Torque Test 200 ~500 g.cm C. Environmental Operation Temperature

- 40 C ~ + 85 C Storage Temperature

- 40 C ~ + 85 C Page 2 Version: 1.0 Issue Date: 2020-02-27 Product Number: HN0433-5501SM Product Name: Antenna 2. Characteristics and Reliability Test Test Items Test Condition and Procedure Requirements C1 S.W.R. Set DUT on Network Analyzer; make individual Directive DUT specification calibration to test C2 Antenna Set DUT on Antenna Chamber; make individual Directive DUT specification Gain calibration to test M1 Vibration MIL-STD-202G, 201A 1. No Visual Damage Amplitude: 0.03 inch (0.76mm); Freq: 10 to 55 Hz 2. Frequency Tol.<= 5%

3 directions; 2 hours for each direction M2 Random Height: 1.5 Meter;

1. No parts separated Drop 3 directions; 1 time for each direction 2. Frequency Tol.<= 5%

M3 Solderability MIL-STD-202G, 210F, cond. A 1. Mounted on PCB Solder iron: 35010C; Duration: 5 seconds 2. No Visual Damage M4 Terminal-

MIL-STD-202G, 211A, cond. A 1. Directive DUT specification Pull Test Holding with individual specification; force applied 2. Frequency Tol.<= 5%

to axis of terminal M5 Terminal-

MIL-STD-202G, 211A, cond. E 1. Directive DUT specification Torque Test Holding with individual specification; applied 2. Frequency Tol.<= 5%

clockwise and counterclockwise to the axis of terminal M6 Dimension Inspection of dimension, color, material, package, Directive DUT specification surface process E1 Salt Spray MIL-STD-202G, 101E, cond. B After 2 Hours Recovery Temp: 35C; RH: >= 95%; NaCl solution: >= 5%;

1. No Visual Damage Time: 48 hours E2 Humidity MIL-STD-202G, 103B, cond. B 2. Frequency Tol.<= 5%

After 2 Hours Recovery Temp: 40C; RH: >= 95%; Time: 48 hours 1. No Visual Damage 2. Frequency Tol.<= 5%

E3 Thermal 1 Cycle: - 40C (30 minutes) to + 80C (30 minutes) After 2 Hours Recovery Shock Cycles: 24 E4 Life (High MIL-STD-202G, 108A, cond. A Temp.) Temp: 85C; Time: 96 hours 1. No Visual Damage 2. Frequency Tol.<= 5%

After 2 Hours Recovery 1. No Visual Damage 2. Frequency Tol.<= 5%

R1 RoHS With Reference to IEC 62321:2008 with flow chart Directive RoHS 2002/95/EC R2 R3 PFOS PFOA Page 3 With Reference to USA EPA 3540C:1996 by LC/MS Directive RoHS 2006/122/EC With Reference to USA EPA 3540C:1996 by LC/MS Directive RoHS 2006/122/EC Version: 1.0 Issue Date: 2020-02-27 Product Number: HN0433-5501SM Product Name: Antenna 3. Antenna - S Parameter Test Data Page 4 Version: 1.0 Issue Date: 2020-02-27 Product Number: HN0433-5501SM Product Name: Antenna 4. Antenna - Radiation Pattern Test Data Testing Equipment Specification:

Antenna Anechoic Chamber Dimension: 8 x 4 x 4 m Quite Zone: 600mm @1 GHz Isolation: >100dB @ 1 MHz ~ 10 GHz Testing Equipment: Agilent 5071B Received Antenna: 0.7 ~ 6.0 GHz for Gain Calibration Double Ridged Horn Antenna 5. Mechanical Drawing See attached files Page 5 Version: 1.0 Issue Date: 2020-02-27

Chongqing Jiantao Technology Co., Ltd Date: 2022-09-29 Subject: authorization for adding family models To whom it May concern, Statement We would like to confirm the product wireless calling system with models (JT-932, JT-9301, JT-9303, JT-935, JT-938, JT-911S, JT-916, JT-916S, JT-919, JT-9101, JT-951, JT-362, JT-350, JT-352, JT-204S, JT-2041, JT-860, JT-203Q, JT-204Q, JT-601Q, JT-223Q, JT-30XX, JT-31XX, JT-32XX, JT-33XX, JT-1154D, JT-W2, JT-W5, JT-W6, JT-D2, JT-D5are same in all respects. Only the model names are different for different market requirement. Yours sincerely, Signature Hanyue Zhang/ Manager Typed name and Title

Chongqing Jiantao Technology Co., Ltd Letter of Agency DateSep. 29, 2022 Element Materials Technology 100 Frobisher Business Park Malvern Worcestershire WR14 1BX UK To Whom It May Concern:

We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse ACT of 1988, U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002(b), to the application, is subject to denial of federal benefits, that includes FCC benefits. Thank you for your attention to this matter. Yours faithfully Signature Hanyue Zhang/ Manager Typed name and Title

Chongqing Jiantao Technology Co., Ltd Date:Sep. 29, 2022 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2A8VY-JT-932 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Schematics Block Diagram Operational Description File Name Schematics.pdf Block Diagram.pdf Operational Description.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Signature Hanyue Zhang/ Manager Typed name and Title