FCC ID: 2BCYP-IT7080BDA27DB 0.5W Public Safety Signal Booster

User Manual Version 1.0 Revision History Rev No. Change Notification Date Remarks V1.0 Draft 2023.09.14 2 Index 1. FCC and ISED Mandatory ............................................................................................................................................ 6 1.1 FCC Warning States ......................................................................................................................................................... 6 1.1.1 FCC (EMI) Warning ........................................................................................................................................................ 6 1.1.2 FCC Warning Label ........................................................................................................................................................ 6 1.2 ISED Warning states ....................................................................................................................................................... 7 1.2.1 ISED Warning label ....................................................................................................................................................... 7 1.3 FCC & ISED Label Placement .................................................. ! . 2. General Information ....................................................................................................................................................... 8 2.1 Repeater Information (FCC & IC ID)...................................................................................................................... 9 2.2 Purpose .................................................................................................................................................................................. 9 2.3 Advantages .......................................................................................................................................................................... 9 2.4 Exterior .................................................................................................................................................................................10 2.5 Interior ..................................................................................................................................................................................11 3. Specifications .................................................................................................................................................................. 12 3.1 Frequency Range ............................................................................................................................................................12 3.2 RF Specifications .............................................................................................................................................................12 3.3 Mechanical Specifications ..........................................................................................................................................13 4. Integrated Enclosure Interfaces............................................................................................................................ 14 4.1 DONOR & SERVICE Connector ...............................................................................................................................14 4.2 DC POWER & BATTERY ALARMS Feedthrough ............................................................................................14 4.3 REMOTE ANNUNCIATOR Feedthrough ..............................................................................................................15 4.4 ALARM Feedthrough ....................................................................................................................................................15 3 4.5 NETWORK Connector ..................................................................................................................................................15 5. LED Indicators ................................................................................................................................................................. 17 5.1 SYSTEM LED.......................................................................................................................................................................17 5.2 ANNUCIATOR LEDs ........................................................................................................................................................17 6. Installation Guide ......................................................................................................................................................... 19 6.1 Environment ......................................................................................................................................................................19 6.1.1 Antenna ............................................................................................................................................................................19 6.1.2 Isolation Check and Gain Setting ........................................................................................................................19 6.2 Mounting the BDA ........................................................................................................................................................19 6.2.1 Installation of Concrete Wall ..................................................................................................................................19 6.2.2 Installation of Wooden Wall ...................................................................................................................................20 7. Web GUI Configuration ............................................................................................................................................. 21 7.1 Web GUI Overview ........................................................................................................................................................21 7.2 Laptop Configuration for Connect to the Repeater ...................................................................................21 7.2.1 GUI Port Connect .........................................................................................................................................................21 7.2.2 NMS Port Connect ......................................................................................................................................................22 7.3 Web GUI Connect and Sign In ................................................................................................................................22 7.4 System Setting Screen .................................................................................................................................................23 7.5 RF Configuration / General / Operation Screen ...........................................................................................24 7.6 Filter Screen .......................................................................................................................................................................25 7.7 Alarm Screen .....................................................................................................................................................................26 7.8 Table Screen ......................................................................................................................................................................27 7.9 Firmware Update Screen ............................................................................................................................................27 4 8. Troubleshooting............................................................................................................................................................. 29 8.1.1 Simple Troubleshooting Method ..........................................................................................................................29 8.1.2 Troubleshooting Guide Related to System Operation ...............................................................................29 8.1.3 Troubleshooting Guide Related to Alarm State .............................................................................................30 8.1.4 Troubleshooting Guide Related to NMS ...........................................................................................................31 5 1. FCC and ISED Mandatory 1.1 FCC Warning States 1.1.1 FCC Part 15.19 Warning The 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. 1.1.2 FCC Booster warning Label 1) Part 90 and Part 20 Signal Boosters THIS IS A 90.219 CLASS A DEVICE WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Part 90 Class B signal boosters (as defined in 47 CFR 90.219) online at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. 2) Part 90 Signal Boosters THIS IS A 90.219 CLASS B DEVICE WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Class B signal boosters (as defined in 47 CFR 90.219) online at www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. 1.1.3 FCC Booster warning statements Use of unauthorized antennas, cables, and/or coupling devices not conforming with ERP/EIRP and/or indooronly restrictions is prohibited. Home/ personal use are prohibited Only 50 ohm rated antennas, cables and passive equipment shall be used with this remote. Any equipment attached to this device not meeting this standard may cause degradation and unwanted signals in the bi directional system. All components connected to this device must operate in the frequency range of this device. 6 1.1.4 FCC Part 15 Class A NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at their own expense. 1.1.5 RF Radiation Exposure This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 70 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. RF exposure will be addressed at time of installation and the use of higher gain antennas require larger separation distances.

(DL: Pannel antenna Max. peak gain: 7 dBi, UL: LDPA antenna Max. peak gain: 12 dBi) 1.2 ISED Warning states 1.2.1 ISED Warning label WARNING: This is NOT a CONSUMER device. It is designed for installation by an installer approved by an ISED licensee. You MUST have an ISED LICENCE or the express consent of an ISED licensee to operate this device. AVERTISSEMENT: Ce nest PAS un appareil de consommation. Il est conu pour tre install par un installateur approuv par un titulaire de licence dISD. Vous DEVEZ avoir une LICENCE dISDE ou le consentement exprs dun titulaire de licence dISDE pour utiliser cet appareil. 7 1.2.2 RSS-GEN (6.8 Transmit antenna) Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. Confonctionneravec une antenne dun type et dun gain maximal approuv pour lmetteur par Industrie Canada. Dans le but de rduire les risques de brouillage radiolectrique lintention desautres utilisateurs, il faut choisir le type dantenne et son gain de sorte que la puissance isotroperayonne quivalente (p.i.r.e.) ne dpassepas lintensit ncessaire ltablissement dune communication satisfaisante. 1.2.3 RF Radiation Exposure This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 70 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. RF exposure will be addressed at time of installation and the use of higher gain antennas require larger separation distances.

(DL: Pannel antenna Max. peak gain: 7 dBi, UL: LDPA antenna Max. peak gain: 12 dBi) Lantenne (ou les antennes) doit tre installe de faon maintenir tout instant une distance minimum de au moins 70 cm entre la source de radiation (lantenne) et toute personne physique. Cet appareil ne doit pas tre install ou utilis en conjonction avec une autre antenne ou metteur.

(DL: Pannel antenna Max. peak gain: 7 dBi, UL: LDPA antenna Max. peak gain: 12 dBi) 1. General Information 8 This document is primarily written for those who are new to 700/800 0.5W BDA system and wish to tune up the equipment. The document is applicable to below products from Innertron. Model number:

IT109B005. 1.1 Repeater Information (FCC & IC ID) TYPE B9A B9B B9A B9B ID NOTES 2BCYP-IT7080BDA27DA 2BCYP-IT7080BDA27DB 30914-IT109B005A 30914-IT109B005B CERTIFICATION FCC IC 1.2 Purpose 700/800 0.5W BDA is a system that generally supports public safety wireless services indoors, and is necessary for first aid workers and firefighters to communicate with each other in emergencies and normal situations. 700/800 0.5W BDA is a digital repeater that supports 700MHz band and 800MHz band. Bandwidth varies based on FPGA, and up to 32 channels can be selectively serviced through software through Digital Filter. 1.3 Advantages 700MHz/800MHz dual band 32 channel class A and B filter per band Automatic gain control UL squelch Oscillation detection Isolation check Auto shutdown to protect repeater from overpower and oscillation VSWR Monitoring LED for status check 9 1 2 3 4 5 6 7 8 1.4 Exterior No. PARAMETER DESCRIPTION NOTES N-type N-type SMA SMA DONOR SERVICE TX CPL RX CPL Donor antenna port Service antenna port UL output coupling port DL output coupling port DC POWER &

DC power and Liquid Tight BATTERY ALARMS associated UL2524 status and alarms Conduit Fittings (3/4 inch) REMOTE Provide power and alarm signaling Liquid Tight ANNUNCIATOR to a remote annunciator Conduit Fittings (1/2 inch) ALARM Provide wired connection to alarm Liquid Tight Conduit Fittings (1/2 inch) NETWORK Communications with a network RJ-45 10 1.5 Interior No. PARAMETER DESCRIPTION 1 RFM & DTU RF Board, Digital Board and PAMs are built in 2 WEB GUI/ALARM Board Web GUI and Alarm functionality integrated into one board NOTES Top: RF Board Bottom: DTU, PAM 3 LED Display of system and alarm state 9 LEDs 11 2. Specifications 2.1 Frequency Range SERVICE BAND 700MHz (US) 700MHz (CANADA) 800MHz (US) DOWNLINK [MHz]

UPLINK [MHz]

LOW CENTER HGH LOW CENTER HGH 769 768 851 772 772 856 775 776 861 799 798 806 802.5 802 815 805 806 816 800MHz (CANADA) 866 867.5 869 821 822.5 824 2.2 RF Specifications PARAMETER DOWNLINK Output Power 700MHz 800MHz 27dBm 27dBm UPLINK 24dBm 24dBm Input Dynamic Range

-63dBm ~ -3dBm

-56dBm ~ +4dBm Gain Range 30dB ~ 90dB 20dB ~ 80dB Gain Adjustment Range per CH 30dB/1.0dB steps Gain Adjust Accuracy Input AGC Dynamic Range Max RF Input Power without Overdrive Max RF Input Power without Damage Noise figure Pass Band Ripple Number of Channel Filter Filter Bandwidth Delay Class A Class B Class A Class B Class A Class B 1dB 60dB

+0dBm

+10dBm

+20dBm 6dB Max @ Max Gain 3dB peak to peak 32 Channel 32 Channel 12.5kHz, 75kHz 150kHz, 250kHz

< 60us @ 12.5kHz

< 15us @ 75kHz

< 15us @ 150kHz

< 15us @ 250kHz EVM 4.0% @ P25 phase 1 and phase 2 modulation 12 UL Squelch Threshold

-70~-100dBm @ Per Class A and B Channel, must have a disable VSWR Spurious 1.5:1

< -13dBm (FCC Title 47 Part 90.219) Characteristic Impedance 50 2.3 Mechanical Specifications PARAMETER DESCRIPTION NOTES Dimensions (H x W x D) 380 x 220 x 100mm Weight Operating Voltage Power Consumption Operating Temperature Operating Humidity Enclosure Cooling Enclosure Class 7kg 12VDC 70W

-30 ~ +50C 95%

Convection UL 50/Type 4X 13 3. Integrated Enclosure Interfaces 3.1 DONOR & SERVICE Connector 700/800 0.5W BDA adopts an N-type female connector. If the user wants to use a Mini-DIN 4.3/10 cable or connector, they need an adapter. 3.2 DC POWER & BATTERY ALARMS Feedthrough BDA uses only 12V DC voltage. If the user uses other un-recommend input voltages, 700/800 0.5W BDA may be broken. DC POWER & BATTERY ALARM feedthrough uses 3/4 inch liquid tight conduit fittings. 14 3.3 REMOTE ANNUNCIATOR Feedthrough Feedthrough to provide power and alarm signaling to a remote annunciator. That uses 1/2 inch Liquid Tight Conduit Fittings. 3.4 ALARM Feedthrough Feedthrough to provide wired connection to one status signal and 7 UL2524 required alarms. That uses 1/2 inch Liquid Tight Conduit Fittings. 3.5 NETWORK Connector Ethernet connector port for communications with a network. User can use the Web GUI to control and monitor the BDA in remote or local locations. 15 16 4. LED Indicators The BDA has 1 system LED and 8 alarm LEDs that visibly display system status and UL2524 alarms. 4.1 SYSTEM LED The SYSTEM LED is a tricolor LED - GREEN, YELLOW, RED LED COLOR STATE GREEN YELLOW RED GREEN OFF SYSTEM NORMAL - POWER ON ANY ALARM DETECTED - SYSTEM OPERATIONAL ANY ALARM DETECTED - SYSTEM NOT OPERATIONAL ALARM RELAY INTERFACE ALARM ACTIVE BUT MASKED NO DC POWER PRESENT 4.2 ANNUCIATOR LEDs There are 8 LEDs which colors are defined as follows:

LED COLOR STATE GREEN AC POWER NORMAL RED RED RED RED LOSS OF AC POWER BATTERY CAPACITY LOW BATTERY CHARGER FAIL RF EMITTER FAIL 17 RED RED RED DONOR ANTENNA MALFUNCTION DONOR ANTENNA DISCONNECTION SYSTEM COMPONENT FAIL 18 5. Installation Guide 5.1 Environment 5.1.1 Antenna The antenna used in the BDA must be certified or an antenna with equivalent specifications. The company shall not bear any liability for any problems arising from the use of an uncertified antenna. The donor antenna must be mounted outside the building with the strongest cell signals. Mount the donor antenna as high as possible facing towards the desired location of the cell tower and facing the opposite direction of the expected location of the service antenna. The server antenna must be mounted 5.1.2 Isolation Check and Gain Setting If the system wants to operate in the max gain state, the system requires sufficient isolation between the donor and service antennas. The system recommends isolation be higher than 20dB above the gain of the system. If isolation is not sufficiently ensured, the Isolation Check function operates to reduce the gain to a level suitable for the ensured isolation. 5.2 Mounting the BDA Choose a location for the BDA, preferably away from excessive heat, direct sunlight, moisture and is free from high temperatures. 5.2.1 Installation of Concrete Wall The following illustration is an example of a concrete wall installation. 19 5.2.2 Installation of Wooden Wall The following illustration is an example of a wooden wall installation. 20 6. Web GUI Configuration 6.1 Web GUI Overview Supports Web GUI pages through the ethernet interface. 6.2 Laptop Configuration for Connect to the Repeater Connect the ethernet cable to the GUI port at the bottom of the repeater or the NMS port inside the repeater. 6.2.1 GUI Port Connect 1) Select 'Internet Protocol Version 4(TCP/IPv4)' in the Ethernet Properties window and click Properties. 2) Enter the IP address (192.168.1.151), the subnet mask (255.255.255.0), and the default gateway

(182.168.1.150) as shown in the figure above, and then click OK. 21 6.2.2 NMS Port Connect 1) Select 'Internet Protocol Version 4(TCP/IPv4)' in the Ethernet Properties window and click Properties. 2) Select Obtain IP address automatically. 3) Select Obtain DNS server address automatically and click OK. 6.3 Web GUI Connect and Sign In 1) Enter '192.168.1.150/psr.html' in the Internet address window to access the Web GUI. 22 2) On the Web GUI screen, type "admin" in ID and P/W and click Sign In button. 6.4 System Setting Screen 1) Can check the system information (Product, Site, Network, etc) on the system setting screen. 23 6.5 RF Configuration / General / Operation Screen 1) Can change the RF setting of the repeater on this screen. 24 6.6 Filter Screen 1) Can set the frequency and bandwidth of the digital filter on the filter screen. 25 6.7 Alarm Screen 1) As a screen for checking the alarm state of the repeater, alarm mask may be set and alarm test may be performed. 2) The alarm state of the repeater may be checked in an alarm color. Yellow: Any alarm detected but system operation Red: Any alarm detected and system not operation 26 6.8 Table Screen 1) Can set various tables (Atten, Power, Temperature, Temperature PLL, DAC) on the table screen. 6.9 Firmware Update Screen 1) Can download the GUI, FPGA and MCU file on the firmware update screen. 27 28 7. Troubleshooting In case of abnormal operation, technician should diagnose abnormality via remote access or directly connecting to repeater using Ethernet cable. If technician is required to conduct repairs due to major alarm, repeater should first be powered off, and then technician should prepare the proper measurement equipment before trying to fix the problem. In most cases of major repairs, Innertron will simply replace the unit and conduct repairs at the appropriate facility. 7.1.1 Simple Troubleshooting Method 1) Verify SYSTEM LED State.

- System normal : Green LED on

- Any alarm detected - system operational : Yellow LED on

- Any alarm detected - system not operational : Red LED on 2) Technician should check external and internal connectors to ensure that all connections are tightly secure. These connectors should be cleaned regularly. 3) If technician thinks there is a serious problem, call after sales team for over-the-phone technical support. 82-32-816-1456. 7.1.2 Troubleshooting Guide Related to System Operation PARAMETER CHECK POINT TROUBLESHOOTING System Input Power Check Before System Operation System Gain System Output Power

- Downlink : -63dBm ~ -3dBm

- Uplink : -56dBm ~ +4dBm

- Downlink : 90dB 1.5dB

- Uplink : 80dB 1.5dB

- Downlink : 27dBm 1.5dB

- Uplink : 24dBm 1.5dB Check After System Check Points After Operation Open For Service

- Verify that the antennas are securely mounted and pointed in the correct directions.

- Connection status between antennas and RF cable.

- Verify that the BDA is securely mounted.

- DC voltage.

- Grounding status of electrical circuit.

- Coaxial cable(RF) construction status. 29 7.1.3 Troubleshooting Guide Related to Alarm State GUI ALARM FRONT PANEL LED BDA ACTION TROUBLESHOOTING NA AC POWER -

NORMAL LOSS OF AC LOSS OF AC POWER POWER BATTERY CAPACITY BATTERY CAPACITY LOW LOW BATTERY CHARGER BATTERY CHARGER FAIL FAIL DL 700 HPA FAIL RF EMITTER FAIL DL 800 HPA FAIL RF EMITTER FAIL SHUTDOWN

- Check power cable connection. NONE

- NA NONE

- NA NONE

- NA 700 DL RF

- Check HPA is off. SHUTDOWN

- Check BDA is shutdown condition. 800 DL RF

- Check HPA is off. SHUTDOWN

- Check BDA is shutdown condition. UL HPA FAIL RF EMITTER FAIL UL+DL RF 700 & 800 SHUTDOWN

- Check HPA is off.

- Check BDA is shutdown condition. HIGH SYSTEM TEMPERATURE COMPONENT FAIL DETECTED RF EMITTER FAIL 700 & 800

- Check maximum temperature setting. RF SHUTDOWN

- Check ambient temperature. DONOR ANTENNA DISCONNECT DONOR ANTENNA

- Check antenna installation direction. DISCONNECTION NONE

- Check donor antenna and RF cable RF EMITTER FAIL connection status. DONOR ANTENNA DONOR ANTENNA MALFUNCTION MALFUNCTION OSCILLATION SYSTEM REDUCED GAIN COMPONENT FAIL OSCILLATION RF SHUTDOWN SYSTEM COMPONENT FAIL RF EMITTER FAIL NONE NONE

- Check donor antenna installation direction.

- Check donor antenna and RF cable connection status.

- Check the direction of the donor antenna and the service antenna. 700 & 800

- Check the direction of the donor RF SHUTDOWN antenna and the service antenna. DOOR OPEN NA NONE

- Check the door 30 7.1.4 Troubleshooting Guide Related to NMS SYMPTOM CHECK POINT TROUBLESHOOTING Link Fail Communication Problem

- Re-connection in ethernet cable.

- Verify IP address and DHCP function. If technician thinks there is a serious problem, call after sales team for over-the-phone technical support. 82-32-816-1456. 31

WARNING: This is NOT a CONSUMER device. Itis This device complies with Part 15 of the designed for installation by an installer approved FCC Rules, Operation is subject to the following by an ISED licensee. You MUST have an ISED two conditions: (1) this device may not cause LICENCE or the express consent of an ISED licensee| harmful interference, and (2) this device must to operate this device. accept any interference received, including interference that may cause undesired operation. FCC ID : IT7080BDA-27DBMDB IT109B005-UB IC ID : 30914-IT109B005B IT109B005-CB Part 90 Signal Boosters THIS IS A 90.219 CLASS B DEVICE WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Part 90 Class B signal boosters (as defined in 47 CFR 90.219) online at www.fec.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. FCC 1D : 2RcvP-1170808DA2704|

ter naacon9 sie sopcres subject tetaoning | | FT#03B005-UA ly ariceD toweee veulasct nae ce. JUCENCE ern xan coco fan SED tense fopeaie ns one IC ID : 30914-172098005A T1098005-c4 Part 90 Signal Boosters THIS IS A 90.219 CLASS B DEVICE WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. You MUST register Part 90 Class B signal boosters (as defined in 47 CFR 90.219) online at www.fec.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. FCC ID : IT7080BDA-27DBMDB IT109B005-UB IC ID : 30914-IT109B005B IT109B005-CB

Attestation Letter - 2.911 (d)(5)(i)(ii) Date: September 22, 2023 FCC ID: 2BCYP-IT7080BDA27DB To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046, USA We, innertron, as requested by FCC, are declaring that Section 2.911 (d)(5)(i)(ii) is being satisfied likes below to the FCC requirements to protect the nation`s networks and supply chains from equipment (covered equipment) according to FCC 22-84 and KDB 986446 D01. Section 2.911 (d)(5)(i)(ii)) 2.911

(d)(5)(i) We certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. And, we certifies that one of following, 2.911

(d)(5)(ii) 1. We are not identified on the Covered List and are not an affiliate or subsidiary of an entity identified on the Covered List. 2. We are identified on the Covered List as an entity producing covered equipment. But, we can be authorized since the reason as explained below. 3. We are an affiliate or subsidiary of an entity identified on the Covered List. But, we can be authorized since the reason as explained below.

*Only one of paragraphs 1, 2 or 3 should be checked, if checked on paragraphs 2 or 3, the reason why it does not include the covered equipment. Sincerely yours, Sincerely,

Seunghee Yoo Chief Engineer/ R&D Dept.

innertron ____________________________________________________________________________ Date: September 22, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 Subject:

Letter for Warning Label Message FCC ID: 2BCYP-IT7080BDA27DB To Whom It May Concern:

Warning label messages will be also shown in online and point-of-sale marketing materials and on outside packaging of device per KDB 935210 D02 Signal Boosters Certification v04r02 in Section IV clause (d). Sincerely,

Seunghee Yoo Chief Engineer/ R&D Dept.

innertron ____________________________________________________________________________ Date: September 22, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road, Columbia, MD 21046 RE: Request of Confidentiality for FCC ID: 2BCYP-IT7080BDA27DB To Whom It May Concern:

Pursuant to Sections 0.457 and 0.459 of the Commissions Rules (CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, innertron hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give innertron temporary confidentiality of commercially sensitive information prior to product release. The requested Confidential and Temporary Confidential exhibits are listed as follows:

CONFIDENTIAL AND SHORT-TERM CONFIDENTIAL LIST Description Block Diagram Operational Descriptions Parts Lists and Tune-Up Procedure Schematics Exhibit 1 2 3 4 5 Internal Photos & External photo 6 Test-Setup Photos 7 User Manual CONFIDENTIAL SHORT-TERM CONFIDENTIAL The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be made public before the date of the Grant for this application. Sincerely, Sincerely,

Seunghee Yoo Chief Engineer/ R&D Dept.

Manufacturers Letterhead Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 09/21/2023 Ref: Attestation Statement Part 2.911(d)(7) Filing FCC ID:2BCYP-IT7080BDA27DB innertron certifies that, as of the dates of this application, Americas Compliance Consulting LLC dba iCertifi iCertifi is our designated U.S. agent for service of process for the above referenced FCC ID. innertron accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission-

related proceeding involving the equipment. iCertifi accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service process for the above referenced FCC ID. Designated U.S. Agent Information:

Name: Americas Compliance consulting, LLC dba iCertifi FCC FRN: 0033399411 Address: 1001 SW Disk Drive, Suite 250, Bend, Oregon 97702 Contact Person: Paul Preston Tel: 866-885-4575 Email: fccagent@icertifi.com Americas Compliance Consulting LLC dba iCertifi Paul Preston Sincerely, innertron 0034266494 Seunghee Yoo Signature V02072023

Date : Oct. 01, 2012 Rev : 2.0 FCC Agent Authorization Letter HACS-F004 FCC Agent Authorization Letter HCT America LLC

(TCB@hctamerica.com) 44946 Osgood Rd, Fremont, CA 94539, USA TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 1 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC Date : Oct. 01, 2012 Rev : 2.0 REVISION TABLE Rev 1.0 2.0 Description of Change Original Release(Obsolete) Updated template Date 06/28/2012 10/01/2012 Approved QM QM HACS-F004 FCC Agent Authorization Letter HCT America LLC

(TCB@hctamerica.com) 44946 Osgood Rd, Fremont, CA 94539, USA TEL: +1.510.933.8848, Fax: +1.510.933.8849 Page 2 of 2 This document is electronically controlled. Hard copy documents are uncontrolled. Please check all hard copies against the controlled electronic copy to ensure validity. This document is the confidential property of HCT America LLC. It may not be forwarded or reproduced in whole or in part without written permissions from HCT America LLC innertron ____________________________________________________________________________ Date: September 22, 2023 To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To whom it may concern:

Subject : FCC Agent Authorization Letter for FCC ID: 2BCYP-IT7080BDA27DB We, the undersigned, hereby authorize HCT CO., LTD to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by HCT CO., LTD on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). We recognize that we are still responsible for the terms and conditions outlined in the HCT America Client Services Agreement. This authorization is valid until further written notice from the applicant. Sincerely,

Seunghee Yoo Chief Engineer/ R&D Dept. HACS-F004 FCC Agent Authorization Letter Rev : 2.0