FCC ID: ACJ9TAK-SRB20 Receiver Board Module

Confidential DECT Microphone System Receiver Board Module for Specifications Audio Enhancement Approval Panasonic. Approval Ver. 1.0 November 29, 2019 Panasonic Corporation Confidential INDEX Ver. 1.0 ................................................................................................................. i 1. GENERAL ........................................................................................................ 4 2. FEATURES ...................................................................................................... 4 3. SPECIFICATIONS ............................................................................................ 4 3.1. Product Specifications ...................................................................................................... 4 3.2. Accessory ......................................................................................................................... 8 4. SAFETY REQUEST ......................................................................................... 9 5. BLOCK DIAGRAM ............................................................................................ 10 6. APPEARANCE ................................................................................................. 11 7. CONTROL TERMINAL SPECIFICATIONS ...................................................... 13 7.1. Electrical specifications ..................................................................................................... 13 8. PACKAGING SPECIFICATIONS ..................................................................... 16 8.1. Packaging specifications .................................................................................................. 16 9. FCC AND INDUSTRY CANADA REQUIREMENTS REGARDING THE END PRODUCT ............................................................................................................ 17 9.1. List of applicable FCC and IC rules .................................................................................. 17 9.2. FCC rules that must be complied with in the end product ................................................ 17 9.3. IC rules that must be complied with in the end product .................................................... 17 9.4. Requirement of regarding the end product and manual ................................................... 18 9.5. Notice ................................................................................................................................ 19

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No. Ver. Date 1 1.0 Confidential Revision Draft The blue sentences is the changing points from K-SRC14

(Wireless Receiver). Change Time Sign Check 29/Nov/

2019 Mitsutoshi Nozawa Motoshi Suzuki

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1.GENERAL Confidential These specifications describe the preliminary specifications of Receiver Board Module for DECT Microphone System for Audio Enhancement (AE). 2.FEATURES Receiver Board Module has same features and outside interface as DECT Receiver K-SRC14. System specifications and system functions including microphones are same as "DECT Microphone System"

with Receiver, so refer to DECT Microphone System for Audio Enhancement Specifications, with replace

"Receiver" to "Receiver board module. Power 3.SPECIFICATIONS 3.1.Product Specifications GENERAL Combined AEs product Input current Dimensions Weight Temperature Range Humidity Range The Condition of Installation Mounting direction LINE Inputs The number of connectors Internal Bus Input Level Input Impedance OUTPUT

: BEAM, XDSolo

: 24VDC (minimum 21.6VDC~maximum 26.4VDC) input from AEs product (BEAM or XDSolo)

: 130mA

: 150mm(W)x 114mm(Hx 18mm(D)

: 85g

: 0 C ~ +50 C (around Receiver Board Module)

: ~ 90%

: Only vertical direction with antenna facing upward Indoor, Fixed Installation

: 1 Stereo input (Tip:Left, Ring:Right, Sleeve:GND) 1/8" (3.5 mm) Stereo phone Jack

: Mono Mixing

: 10k or more

-10dBV Unbalanced The number of connectors 1/8" (3.5 mm) Stereo phone Jack Adapted Load Impedance Nominal Output Level

: 1 Mono output (Mix output Unbalanced)

: 10k or more

-10dBV

-60dBV or less Residual Noise

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Confidential OUTPUT (Amplifier interface) Connectors Adapted Load Impedance Nominal Output Level Mic output 1,2 Mix output

: RJ-45 (Type for LAN), connect to Amplifier

: 10k or more

-5dBV Balanced 0dBV Balanced

-60dBV or less Cross talk Residual Noise GENERL SPECIFICATIONS for AUDIO

: 80dB or more (Line In to Mix output Balanced) Dynamic Range

: 80dB or more (Line In to Mix output Unbalanced)

: 85dB or more (Receiver to Mic/Mix output Balanced)

: 60dB or more (Line In to Mix output Balanced)

: 60dB or more (Line In to Mix output Unbalanced) By auto level control function in Microphone Signal to noise ratio (S/N)

-45dB or more @1kHz Frequency Response Total Harmonic Distortion Attenuator

: 60dB or more (Receiver to Mic/Mix output Balanced)

: 100Hz ~ 7kHz,

: 0dB3dB (Line In to Mix output)

: 0dB3dB (Receiver to Mic output)

: 3.0% or less (Line In to Mix output)

: Built-in each output (Mic output 1,2, Mix output) 3.0% or less (Receiver to Mic output) RS-232C ) 0 dB ~ -32dB /2step

-32dB ~ -48dB /4step,-60dB,-70dB, OFF

(Controlled from Pendant type microphone and Mixing output attenuator : -10dB attenuator build in to mixing output. Set by dip switch FEEDBACK BLOCKER Assignment

: Mic Channe1 and Mic Channel 2

: 5 band Filter

: 3 step operation Filter Operation 1st Step : Searching Feedback point and enable a filter 2nd Step: Add 6dB attenuation to 1st step 3rd Step: Full attenuation RESPONSE TONE refer to AE DECT Mic Specification -2.9 TONE

: Five tone signals are build-in Number of tone signal

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OTHER FUNTIONS Teachers over ride Confidential

: This function will work when voice come into input from Mic CH1 or CH2. Then Mix-output level will be set to fixed attenuate level. Paging mute Mic mixing CONTROL TERMINAL The number of connectors E2 output E1 output E2 acknowledgement Page Mute Serial port (RS-232C) LINK Button Alert Notification Button Attenuation = 12dB or more Available On/Off control by Dip switch

: When Paging mute terminal is activated, this function will be work. At this time,Mic output channel 1 and 2,Mix-output level set to Mute

: Mic channel 1 and 2 are available to assign to the Mix output Level. Attenuation = 40dB or more This function is set by RS-232C control only

: 7pin and 8pin Euro type connector Opt-isolated open collector Maximum control current 20mA Opt-isolated open collector Maximum control current 20mA

: CONT=Maximum control voltage 30V COM =common

: CONT=Maximum control voltage 30V, Dry contact COM =common

GND=GND

Short current 2mA 5VDC always appear on the terminal Short current 2mA 5VDC always appear on the terminal IN = Pull to GND IN = Pull to GND GND=GND 9600 bps, 8 data bits,1 stop bit, No parity

: TxD= Transmission port RxD=Receiver port GND=GND Baudrate and protocol =

Maximum distance = 15m

IN = Pull to GND GND=GND IN = Pull to GND GND=GND

Short current 2mA 5VDC always appear on the terminal Short current 2mA 5VDC always appear on the terminal

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INTERFACE CONNECTOR Amplifier interface Connector Recommended Cable Pin assignment DIP SWITCHES Teachers Over Ride Response Tone Response Tone Level Microphone Mix setting Feedback Blocker Volume Control Bypass Confidential

: RJ-45 (Type for LAN) , connect to Amplifier

: LAN Cable (CAT5)

: 1:Mic output 1 Hot 2:Mic output 1 Cold 3:Mix output Hot 4:Power DC24V 5: GND 6:Mix output Cold 7: Mic output 2 Hot 8: Mic output 2 Cold

: No1-1 *ON/OFF, setting function When set to ON, The tone signal will be assigned to Mix-output When set to ON, Teachers over ride is enabled. When teachers voice will be detected on each Mic input, The line input will set to mute level.

: No1-2 *ON/OFF

: No1-3 ON(HIGH)/*OFF(LOW ),setting tone level

: No1-4

: No1-5 ON/*OFF, setting function

: No1-6 ON/*OFF When set to ON, Mic CH1&CH2 will be Mixed to the Mix-output

*ON/OFF

(Remote volume) This function will disable volume control from the tear-drop-

-microphone, and provide a volume control of the external device via RS-232C Mixing output attenuator : No1-7 *ON/OFF When set to ON , -10dB attenuator of mixing output is enabled This will be used for match a audio level to next equipment. RF Tx power setting

:No1-8 ON(mode2; HIGH)/ *OFF( mode1; Normal) Channel 3 VOL Line/Mic Alert ON/OFF Not use

: No2-1 ON(MIC/MDS)/*OFF(LINE).

: No2-2 *ON/OFF

: No2-3 to 8 ON/*OFF When set to ON , Receiver receives a SAFE Alert Note *: Factory setting SWITCH LINK Button

[LINK]

For Audio link up or registration INDICATOR Mic1 Indicator Power Indicator Mic2 Indicator LINK Indicator

: 1 LED (2 colors LED) Refer to soft specifications

: 2 LED (2 colors LED) Refer to soft specifications

: 3 LED (2 colors LED) Refer to soft specifications

: 4 LED (2 colors LED) Refer to soft specifications

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RF COMMUNICATION Antenna : The number of Antenna: 2 Antenna type: Dipole Frequency range: 1,920 1,930 MHz Antenna gain: 0dBi Specified Output Power

: [Mode 1] (NORMAL) 0dBm (to Microphone) Confidential Coverage Diversity Support 3.2.Accessory Unattached:

Operating Instructions Warranty Card

[Mode 2] (Hi POWER) 5dBm (to Microphone)

: [Mode 1] (NORMAL) 20m

[Mode 2] (Hi POWER) 30m Space Diversity ( Except Broadcast)

No Slot Diversity

: None. Total operating instructions are prepared by Audio Enhancement.

: None, the warranty period is described in the contract.

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4.SAFETY REQUEST Confidential In order to comply with the Panasonic Safety Regulations, take one of the following action on the AE product side.

-Add the circuit protection element (PRCP-NSMF020/30X made by COPAL ELECTRONICS) to the board in AE product which supplies the power to Receiver board

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5.BLOCK DIAGRAM Receiver Board Module 1 Dip seitch2 1 Vhannel3 VOL line/Mic 2 Alert ON/OFF 3-8 No use

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6.APPEARANCE Antenna RF Shield Dip Switch 2 Dip Switch 1 Control Terminal Amplifier Interface connector Mix output Line input

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Name plate label FCC Caution Label LINK Button Mic status indicator for CH1 Mic status indicator for CH2 Power indicator LINK indicator

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7.CONTROL TERMINAL SPECIFICATIONS 7.1.Electrical specifications a. E1,E2 terminal Output circuit type is open collector. It has diode to prevent reverse connection. The terminal could drive until 20mA against the load equipment Maximum voltage rating is 30VDC Name Electrical specifications I/O Equivalent Schematic E1 E1 E2 output Max control Voltage : 30V Max control current : 20mA E2 b. E2 Ack terminal Input configuration is transistor. It has diode to prevent reverse current. Designed for external device which has dry contact like relay output. 5VDC will always appear on the terminal. Short current is 2mA If the terminal will be shorted by external device. Name Electrical specifications I/O E1 E2 Equivalent Schematic To CPU E2 Ack input Terminal voltage:5V Short current:2mA

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c. Page mute terminal Input configuration is transistor. It has diode to prevent reverse current Designed for external device which has dry contact like relay output. 5VDC will always appear on the terminal. Short current is 2mA If the terminal will be shorted by external device. Name Electrical specifications I/O To CPU Page mute input Terminal voltage:5V Short current:2mA d. LINK Button terminal Input configuration is transistor. It has diode to prevent reverse current Designed for external device which has dry contact like relay output. 5VDC will always appear on the terminal. Short current is 2mA If the terminal will be shorted by external device. Name Electrical specifications I/O Equivalent Schematic Equivalent Schematic To CPU LINK Button input Terminal voltage:5V Short current:2mA

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e. Alert Notification Button terminal Input configuration is transistor. It has diode to prevent reverse current Designed for external device which has dry contact like relay output. 5VDC will always appear on the terminal. Short current is 2mA If the terminal will be shorted by external device. Name I/O Electrical specifications Equivalent Schematic To CPU Alert Notification input Button Terminal voltage:5V Short current:2mA

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ACKAGING SPECIFICATIONS ACKAGING 8.PACKAGING SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Packaging specifications Packaging specificatio 8.1.Packaging specificatio Packaging specificatio s Dimensions Dimensions of Packing box : 34 of Packing box : 34 of Packing box : 340mm(W)x 270mm(D 0mm(W)x 270mm(Dx 18mm(H x 18mm(H)

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9.FCC AND INDUSTRY CANADA REQUIREMENTS REGARDING THE END PRODUCT 9.1.List of applicable FCC and IC rules K-SRB20 (Receiver Board Module) complies with FCC part15 subpart D and Industry Canada RSS 213 Issue3. 9.2.FCC rules that must be complied with in the end product K-SRB20 (Receiver Board Module) is only FCC authorized for the specific rule FCC part 15 subpart D listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The end product manufacturer is responsible for compliance to any other FCC rules FCC part15 subpart B. 9.3.IC rules that must be complied with in the end product K-SRB20 (Receiver Board Module) is only IC authorized for the specific rule Industry Canada RSS 213 Issue3 listed on the grant, and that the host product manufacturer is responsible for compliance to any other ICC rules that apply to the host not covered by the modular transmitter grant of certification. The end product manufacturer is responsible for compliance to any other ICC rules ICES-003 issue 6.

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Display location User manual and end product User manual and end product User manual and end product. If it cannot be displayed on the end product, it must be displayed on the packaging box User manual User manual 9.4.Requirement of regarding the end product and manual End product and literature provided to the end user must include the following wording:

Wording Contains Transmitter Module FCC ID:ACJ9TAK-SRB20 IC:216M-KSRB20 CAN ICES-3(A)/NMB-3(A) FCC Caution:

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules and Innovation, Science and Economic Development Canadas licence-exempt RSS(s). 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. 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 his own expense. FCC RF Exposure Warning:

To comply with FCC RF exposure requirements in uncontrolled environment:

This equipment must be installed and operated in accordance with provided instructions and a minimum 20 cm (8 inches) spacing must be provided between antenna and all persons body (excluding extremities of hands, wrists, feet and ankles) during wireless modes of operation. This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. RSS-Gen Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) 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. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference. This device must accept any interference, including interference that may cause undesired operation of the device. L'metteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR d'Innovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes :

1. L'appareil ne doit pas produire de brouillage;

L'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. User manual User manual User manual

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9.5.Notice 1. This module (K-SRB20) is not the Limited Module. 2. There is no trace antenna design in the end product.

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() URL : http://www.panasonic.com/jp/corporate/management/procurement/

green.html Observe the Panasonic Group Chemical Substances Management Rank Guidelines latest version (For Products). URL : http://www.panasonic.com/global/corporate/management/procurement/

green.html 240.3

. 3 0 4 2 216M-KSRB20 4-R 1 Country Origin Manufacturer Name PSNS ( ) UL UL application of Product categories Outdoor UL60065 Indoor UL60950 UL Not subject to UL Destination Wireless Destination Domestic Domestic China 1st Region Other 2nd/3rd Region Subjected Not Subjected Specified Electrical Appliance Electrical Appliance Except for Specified S-JQA 1st Region UL C-UL-US VCCI A B FCC/ICS A B 1 0.2 2 PUGT1005ZA_K-SRB20_20191107.OL.ai 3 4 5 UL969,CSANotice219AD

()50PAT1(No4615B#50)

()N25PL(No3205A#25) 6 7 Attention 1 Tolerance is 0.2,unless otherwise indicated. 2 Details of the content of the print depend on the block copy. File NamePUGT1005ZA_K-SRB20_20191107.OL.ai 3 Sensitized adhesive agent must be applied to rear side. 4 No lacking line characters blots and stains on printing. 5 The label materials must be conformed to rules of UL969 and CSA Notice 219 A-D. Texture(Base material) : Lintec Co., Ltd. Polyester of Background in white, 50, PAT1(No4615B#50) Base material color:Background in white. Laminate material : Lintec Co., Ltd. Polyester dulled gloss N mat, 25, PL SHIN (No3205A#25) 6 Print color : Background in Base material color, Characters in black. 7 The Name Plate should be attached on the separator. 2nd/3rd Region NZ Australia/NZ Russia Korea China Standard TYPE ENCLOSURE CE Company Name and Address WEEE SEMKO RCM EAC GOST KC CE Company Name and Address CCC RoHS China RoHS Highlands ban mark Hot ban mark Waterproof Grade IP 2019.11.17 ORDER DRAWING FOR MASS PRODUCTION K-SRB20 MAIN LABEL Panasonic Corporation 2 1 19.11.07 19.11.07 PUGT1005ZA/C1

Panasonic Corporation of North America Product Safety & Compliance Department Two Riverfront Plaza, 9th Floor Newark, NJ 07102-5490 U.S.A. Date: Sep. 25, 2019 To whom it may concern, Request for Permanent Confidentiality Under FCC Part 15 Certification FCC ID: ACJ9TAK-SRB20 Request is hereby submitted by Panasonic Corporation of North America withhold permanently from public review certain portions of the application for equipment certification for the referenced FCC identifiers. This request for confidentiality is made pursuant to 47 CFR 0.457(d) and 0.459 of the FCC Rules. In particular, the following sections of the application are to be kept permanently confidential and Panasonic Corporation of North America reserves the right to discern which parties can obtain access to these information:

Schematics Detailed Block diagrams Detailed Operational/Functional Description The rationale for request for confidentiality is as followings:

This information represents intellectual property of Panasonic Corporation of North Americaand it is subject to competition. We have invested considerable time and materials in research and development to produce the referenced product. Disclosure of the permanently confidential portions of this application to competitors would not only give them significant competitive advantages in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed by us. If you have questions or need further information, please contact the undersigned. Regards, Ben Botros Project Manager

Nov 13, 2019 To whom it may concern, Declarations FCC ID: ACJ9TAK-SRB20 IC: 216M-KSRB20 I, the undersigned, hereby declare that 1. The device does not use the provisions of 47CFR 15.323 (c) (6), random waiting mechanism is not used in this system. 2. The provisions of 47CFR 15.323 (c) (10) and 47CFR 15.323 (c) (11) are not used to extend the range of spectrum occupied over space or time for the purpose of denying fair access to spectrum to other devices. 3. Only the K-SMS19 will act as the initiating device, which will initiate the establishment of the duplex connection. 4. The device complies with the provisions of 47CFR 15.319(f). The device shall automatically discontinue transmission in case of either absence of information to transmit or operational failure. These provisions are not intended to preclude transmission of control and signaling information or use of repetitive codes used by certain digital technologies to complete frame or burst intervals. The following table explains the reaction of device in case of either absence of information to transmit or operational failure after a connection of its companion device is established. Circumstances Reaction of Receiver Board Module Switch-off companion device 1 2 On hook by companion device 3 Remove power from companion device 4 Switch-off device 5 On hook device 6 Remove power from device Connection is terminated and, transmission ceases. A Connection is terminated but device transmits control or signaling information. B Connection is terminated but companion device transmits control or signaling information. C NA Not applicable represents the device does not contain a hook switch or a power off switch. NA NA B NA NA A 5. ML of Receiver Board Module declared by manufacturer are 30dBm. If you have questions or need further information, please contact the undersigned.

Panasonic Corporation of North America Product Safety & Compliance Department Two Riverfront Plaza, 9th Floor Newark, NJ 07102-5490 U.S.A. Date: October 23, 2019 Ref. no.: PMBF-19-F005 Letter of Agency for FCC Certification Sep. 25, 2019 To whom it may concern, Letter of Agency I, an officer of Panasonic Corporation of North America do hereby authorize Intertek Testing Services (Mr. Terry Chan / Koo Wai Ip /

Kenneth Wong / Melvin Nip / Jess Tang) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment of the FCC Rules until further notice. I further certify that no party (as defined in 1.2002(b) of CFR 47, 2004) to this application, including myself, is 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., 862. Regards, Ben Botros Project Manager

Panasonic Corporation of North America Two Riverfront Plaza, 9th Floor Newark, New Jersey, United States 07102-5490 RE FCC ID: ACJ9TAK-SRB20 To the certification reviewer:

We are hereby applying for full modular approval of the above-referenced FCC ID, based on compliance with all the criteria as detailed below. Part 15 Unlicensed Single Modular Transmitter Approval Justification per 15.212

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii) Requirement per 15.212 radio elements of The transmitter must have shielding. the modular their own RF The modular transmitter must have buffered modulation/data inputs (if such inputs are provided. The modular transmitter must have its own power supply regulation. The modular transmitter must comply with the antenna and system requirements of 15.203, 15.204(b) and 15.204(c). transmission The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with Part 15 parameters. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is label referring to the enclosed module. The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. installed must also display a

(viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. reference Yes, shielding is provided by a metal cover over the module circuitry. Yes, all modulation and data inputs are buffered by circuitry on the transmitter chip. Yes, Power supply regulation is provided by circuitry on the power regulator chip. And source is from AC to DC power adaptor Yes, The antenna is permanently attached. Yes, The modular transmitter must be tested in a stand-alone configuration Yes, A sample of the host label is provided as an exhibit, showing the FCC identifier of the module. Yes, The module complies fully with the operating requirements of Part 15 Sub part D as demonstrated in the test report exhibit. Yes, this module operates under Part 15 Sub part D, which is exempt from RF exposure evaluation owing to the very low operating power:

Panasonic Corporation of North America Two Riverfront Plaza, 9th Floor Newark, New Jersey, United States 07102-5490 Sincerely,