FCC ID: AZP-FDK32TU Vehicle Modem

1M36Q123 rev 0.1 Instruction Manual FDK32TU This instruction manual contains important notices and how to use this product safely. Please be sure to read this instruction manual before you use this product. Please understand the following symbols that are used in this manual before reading this instruction manual. The symbols are defined as follows:

Indicates a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored. Indicates a hazard that will or can cause minor personal injury, or property damage if the caution is ignored. 1M36Q123 rev 0.1 FCC Notice This equipment has been tested and found to comply with the limit 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 use 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 dose causes 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 measure:

- Reorient or relocate the receiving antenna.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is Increase the separation between the equipment and receiver. connected.

- Consult the dealer or an experienced radio/TV technician for help. The user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 1M36Q123 rev 0.1 The following six are extremely important warnings. 1. Be sure to use this product within its specification; otherwise it may cause failures and malfunctions. Especially, pay great attention to temperature range and power source voltage. 2. Do not install this product to the sites where the product is disposed under the direct sunlight and/or under the high temperature. Prior to use this product, please make sure the temperature around the site where you are planning to use this product, because this product is guaranteed at the limited ranges guaranteed temperature range may cause failure of this product. temperature and storage temperature. Operating the product beyond in operating the 3. Do not install this product in a high humidity area. A drop of water on the circuit inside of this 4. Avoid this product from being watered. If water enters inside this product, it may cause failure of product may cause failure of this product. this product 5. The specification of the external interface of this product is different from ordinary one. Please make sure the wire identifications before connecting external equipment. 6. Be sure to confirm that the power switches are off before connecting or disconnecting connectors. Connecting and disconnecting connectors while any power is on may cause failures and malfunctions. 1M36Q123 rev 0.1 The following three are very important cautions in handling this product. 1. This product is designed specially for industrial applications. If you are planning to use this product in the area where the use of electromagnetic wave is restricted because medical equipment and airplanes are used near its area, Please confirm that this product does not interfere with those before you use this product. Please do not use this product unless you can confirm that this product does not interfere with those medical equipment and airplanes near the site. 2. Please pay attentions to the electromagnetic conditions around this product. This product uses electromagnetic wave as a communication method. Consequently, if there is a strong source of electromagnetic wave near this product, this product may not able to fully achieve its performance. Please check the electromagnetic conditions around the site where you are planning to use this product prior to use this product. 3. This instruction manual is protected by the law of copyright protects. Futaba Co. is not responsible to any problem and incident that are caused from reprinting this instruction manual by somebody other than Futaba. 1M36Q123 rev 0.1 TABLE OF CONTENTS 1. INTRODUCTION .............................................................................................................................................. 1 1-1. Special Features .......................................................................................................................................... 1 1-2. Names and functions of parts of the mobile station ................................................................................... 1 1-3. Names and functions of parts of the coupler unit ....................................................................................... 3 2. POWER .............................................................................................................................................................. 4 2-1. Before turning on the power ....................................................................................................................... 4 2-2. Voltage of the power source ....................................................................................................................... 4 2-3. Connector for the power source ................................................................................................................. 4 Power switch .............................................................................................................................................. 4 2-4. 3. COUPLER UNIT ............................................................................................................................................... 5 3-1. Connecting the mobile station and the coupler unit ................................................................................... 5 4. CONNECTING COMMUNICATION CABLE ................................................................................................. 6 4-1. Connector for RS-232C/RS-422................................................................................................................. 6 5. SETTING SWITCHES ...................................................................................................................................... 7 6. SYSTEM OPERATION ..................................................................................................................................... 8 6-1. Outline of communication .......................................................................................................................... 8 6-2. Preparation of communication on the air ................................................................................................... 8 6-3. Data communication with serial port of the wireless modem .................................................................... 8 Transmission....................................................................................................................................... 8 6-3-1. 6-3-2. Receiving ............................................................................................................................................ 8 6-3-3. Data packet format ............................................................................................................................. 8 6-3-4. Communication on 1:n mode ............................................................................................................. 8 7. COMMUNICATION WITH MOBILE STATIONS........................................................................................... 9 8. COMMUNICATION COMMAND ................................................................................................................. 10 9. CONTROL COMMAND ................................................................................................................................. 11 ADDRESS .................................................................................................................................................... 13 10. INDICATORS .............................................................................................................................................. 14 11. EXTERNAL RESET .................................................................................................................................... 15 12. PRODUCT SPECIFICATION ..................................................................................................................... 16 13. communication characteristics of feeder cable ..................................................................................... 16 external I/F specification ...................................................................................................................... 16 mobile station's general specification ................................................................................................... 17 FREQUENCY CHANNEL .......................................................................................................................... 18 FSK mode ............................................................................................................................................. 18 Low Speed OFDM mode ..................................................................................................................... 19 High Speed OFDM mode ..................................................................................................................... 20 13-1. 13-2. 13-3. 14-1. 14-2. 14-3. 14. 1M36Q123 rev 0.1 INTRODUCTION 1. 1-1. Special Features 1) FDK32TU (mobile station) communicates with the modem FDK01TU (fixed station) through coupler FZE02TJ010 and 200-ohm feeder cable. 2) In this system, multiple mobile stations can be allocated to the single feeder cable. And each mobile station can have individual address that can be set externally. As a result, a single fixed station and multiple mobile stations can establish a communication network. 3) The interface between the external controller and the fixed station or the one between the external controller and the mobile stations is designed to meet RS-422 and RS232C. 4) FDK32TU has 3 operation mode:

FSK mode (1 ~ 50ch) Communication speed is 100kbps. Low Speed OFDM mode (51 ~ 100ch) Communication speed is up to 105kbps. High Speed OFDM mode (101 ~ 120ch) Communication speed is up to 1,054kbps. 1-2. Names and functions of parts of the mobile station Indicators of signal reception level Indicator of signal transmission Switches to set address Switches to set transfer speed Indicator of power switch Fig. 1-1 p.1 1M36Q123 rev 0.1 Power switch Connector to the 24V DC power Connector to the external reset Interface connector to RS-232C/RS422 (specially defined pin assignment) R2 : Connector for receiving signal from coupler unit 2 R1 : Connector for receiving signal from coupler unit 1 T2 : Connector for sending signal to coupler unit 2 T1 : Connector for sending signal to coupler unit 1 R2 R1 T2 T1 Fig. 1-2 Fig. 1-3 p.2 1M36Q123 rev 0.1 1-3. Names and functions of parts of the coupler unit Connect this terminal to the mobile station's R1 or R2. Connect this terminal to the mobile station's T1 or T2. Fig. 1-4 p.3 1M36Q123 rev 0.1 2. POWER 2-1. Before turning on the power Be sure to read this instruction manual prior to turning on the power of the modems. Improper operations of the FDK modem may not only cause failures of communication but also cause malfunctions and/or damages of this modem and the external equipment connected to this modem. In order to establish proper communication between this modem and the fixed station, communication parameters should be set by switches, which should be set before turning on the power switch. In addition, since Futaba has specially defined the pin-assignment of interface connector for RS-232C/RS-422;

please carefully confirm the wire identifications of the interface cable and pin layout. 2-2. Voltage of the power source The input voltage to this modem should be within the range of 20Vdc and 29Vdc. Otherwise, this modem and the external equipment connected to this modem may cause damages or malfunctions. 2-3. Connector for the power source The type of the connector used for this modem is S2P-VH made by J.S.T. Mfg Co., Ltd. Supply the voltage anywhere between 24V +/- 10% to the "+" marked terminal and connect the ground wire to the "-"marked terminal. Connector for the power source Fig. 2-1 2-4. Power switch The label "POWER" is printed beside the power switch of this modem. (See Fig. 2-2) Pushing this switch toward "ON" will turn on the power switch and the LED indicator of the power on top of the unit turns on green. On the other hand pushing the switch toward "OFF" will turn off the power. The picture 2-4 shows "OFF" state. Power switch Fig. 2-2 p.4 1M36Q123 rev 0.1 3. COUPLER UNIT 3-1. Connecting the mobile station and the coupler unit A mobile station has four 50-ohm impedance SMA connectors. Two connecters are for transmission and the other two are for reception. Connections between a mobile station and the two units of couplers are shown in figure 3-1. T1 and R1 of a mobile station should be connected to one unit of two couplers. T2 and R2 of the mobile station should be connected to the other like Fig. 3-1. Mobile station rear panel T1 T2 R1 R2 T R T R coupler coupler Ferrite core NEC TOKIN CO. ESD-SR-12 100-ohm

(100MHz) Fig. 3-1 p.5 1M36Q123 rev 0.1 4. CONNECTING COMMUNICATION CABLE 4-1. Connector for RS-232C/RS-422 Connector model:

Please select one out of RS-232C and RS-422. Hirose Electric Co., Ltd. RDED-9P-LN (4-40) (50) 1 6 5 9 D-sub 9PIN PIN No. 1 2 3 4 5 6 7 8 9 Signal name NC TD RD NC GND RD+

RD-

TD+

TD-

Note RS-232C transfer data Signal ground RS422 RS-232C uses the pins 2, 3 and 5. RS-422 use the pins 5 through 9. SW 1 on top of the unit can select either RS-422 and can either connect the termination resisters or disconnect them. SW2 is the common switch for RS-232C and RS-422 to set parameters of communication speed and so on. Please refer to the next section for further detail. p.6 1M36Q123 rev 0.1 5. SETTING SWITCHES The functions of the dipswitches and a rotary switch are follows:

Table 5-1 SW (DIP-8) OFF ON RS-422 RS-232C item bit 1 Select RS-232C or RS-422 2 Reserved 3 4 5 6 7 Transfer speed 8 Refer to Table 5-2. Table 5-2 Setting of transfer speed No. 1 2 3 Transfer speed SW Bit7 Bit8 ON ON 921.6kbps OFF ON 115.2kbps OFF OFF 19.2kbps Table 5-3 Address SW (3 sets of 16-step rotary switch) Item Own address Effective value 400h to FFFh note Default value is 400h 000h through FFFh are prohibited. p.7 1M36Q123 rev 0.1 6. SYSTEM OPERATION 6-1. Outline of communication FDK32TU is the wireless modem unit to communicate with FDK31TU. To send data to FDK31TU through serial port (RS-232C, 422) of FDK32TU, apply command @TXT or @TBN. Refer to the instruction manual about detail of @TXT or @TBN command. Communications on the air through feeder line and coupler are performed with packet data transmission mode. 6-2. Preparation of communication on the air Before making communication on the air with FDK31TU, it is necessary to chose frequency and chose the port of two couplers of transmitter and receiver. The frequency of each FDK32TU and FDK31TU must be same. To select the port of two couplers of transmitter and receiver, use @COP command. @COP command is used in case of branching the 200 ohms feeder line, and so on. FDK32TU has no automatic selection function of the coupler, such as diversity mode. 6-3. Data communication with serial port of the wireless modem 6-3-1. Transmission To send data to FDK31TU through serial port (RS-232C, 422) of FDK32TU, apply command @TXT or @TBN. If there was respond ACK from FDK31TU on the air, FDK32TU make OK output to its serial port (RS-232C, 422). If there was no ACK from FDK31TU on the air, then FDK32TU make NG output through its serial port

(RS-232C, 422). 6-3-2. Receiving FDK32TU calculate CRC and make address recognition and make data output through its serial port (RS-232C, 422). 6-3-3. Data packet format Data packet format is described below. Preamble Header Data CRC

: 32 times repetition of 1 and 0.

: address of recipient, and address of transmitter, number of retransmission, number of packet, and so on.

: data to be sent up to 1024 bytes.

: CRC16 calculated with Header to Data. Data CRC 6-3-4. Communication on 1: n mode One FDK31TU able to perform 1: n communication with defined number of FDK32TU. To make 1:n communication, define plural address on address part of @TXT or @TBN command. Addresses input through serial port (RS-232C, 422) of FDK31TU will be added to its header. Preamble Header p.8 1M36Q123 rev 0.1 7. COMMUNICATION WITH MOBILE STATIONS Communication procedure (an example) 1) Set parameters of fixed station, and make it effective to communicate with mobile stations. 2) Connect to the power source. 3) Connect the external interface (One of RS-232C and RS422) 4) Connect to the matching/distributing unit.

(The order between and can be changed freely.) 5) Turn on the fixed station and mobile stations.

(The order to turn on the powers is free.) 6) Wait more than 1 second and then set frequency channel. After receiving a response of "OK", forward to the next step. 7) Send command/data in format of @TXT or @TBN. If "OK" is returned, the communication is completed. If "NG" is returned, possible reasons of the failure are insufficient signal strength and improper settings of communication cable, switches and frequencies. Send @PNG command and read the value of RSSI. If the value is 57 or lager, please confirm the setting condition again. If "OK" is returned, it is possible to continue communication by repeating . p.9 1M36Q123 rev 0.1 8. COMMUNICATION COMMAND Input and output between external control equipment and mobile stations are carried out by packet method. The data format of the packet method is either in the sequence of "@TXT (address) (user data) [CR] [LF]" or in the sequence of "@TBN (address) (data length) (user data)"

Binary data method is useful to avoid communication errors when a control code matches exactly a part of user data. Text data @TXT (address) (user data) [CR] [LF]

: ASCII code, hexadecimal Address

: ASCII code, hexadecimal 3-digits

(For instance, 4 is "34h" in ASCII.) Data The data length : Arbitrary but no more than 1024 bytes.

: 0Dh in hexadecimal

[CR]

[LF]

: 0Ah in hexadecimal Example

@TXT001ABCDEFG [CR] [LF]

Binary data @TBN (address) (data length) (user data) Address Data length

: ASCII code, hexadecimal 3-digits

: "001" to "400" (0 to 1024 bytes)

: Sending "ABCDEFG" to a mobile station whose address is 001. The number of bytes should be expressed by hexadecimal 3-digits ASCII code.

: not necessary

[CR][LF]

in If data length is longer than predetermined data length, the surplus of the data will slide in front of sender. instruction. Therefore "NG [CR] [LF]" may be returned the data the next to Example

: Sending 7 bytes of binary data to a mobile station whose address is 001.

@TBN001007 (7 bytes of binary data) Taking into consideration the manual input through terminal software, the text data method can delete a character by recognizing backspace key while the binary data method treats backspace key as data. In the case that transmission and reception of all the data is completed properly, the sender will output the message "OK [CR] [LF]" after receiving ACK of the last packet. On the other hand, the receiver will output the same character string that was sent from the sender from the headfirst. In case of @TBN command, the receiver will output the data that is within the range determined by the user data length, otherwise surplus of the data will not be outputted. In case of communication error, if ACK is not returned from the destination after repeating retransmission up to the preset number, the sender will stop sending data and output "NG [CR] [LF]" immediately after detection of the end of input data. In case of failure while sending a packet due to communication error, the sender will output the partial data that the sender could properly receive from the external interface of the receiver. p.10 1M36Q123 rev 0.1 9. CONTROL COMMAND Control commands are used for controlling the fixed station. No. Command content Table 9-1 Command table Write or read frequency channel number Request response & read the reception intensity of the destination Reset software Setting of the coupler or readout string FRQ PNG RST COP 1 2 3 4

@FRQ

: Write or read frequency channel number 1) Input

: @FRQpp[CR][LF]

ppp : Input a number between 1 and 50 (ASCII code) or input nothing for ppp. Inputting a single digit is allowed for 1 through 9. Do not input space between "FRQ" and "ppp".

(Note) 2) Processing

: If there is no input for "ppp", the current frequency channel number will be outputted. Response message FRQ = ppp [CR] [LF]

(Note) Spaces are necessary in front of and afterwards of "=". pp: 00 to 120 (ASCII code) If a channel number is inputted in "ppp", this modem will return "OK" message to the host computer after changing the SRAM register and reassign the frequency number,. 3) Frequency channel at the booting At the booting this modem and resetting the software, the frequency channel is 0.

@PNG

: Request response & read the reception intensity of the destination 1) Input

: @PNG[CR][LF]

2) Processing

: Receiving this command, this modem returns as a response message the signal intensity of the last packet that this modem has received. Response massage RSSI = nn [CR] [LF]

nn: Hexadecimal number of signal intensity in [dBm]

p.11 1M36Q123 rev 0.1

@RST

: Reset software 1) Input

: @RST[CR][LF]

2) Processing

: Receiving this command, software will be reset. This command restarts the exerciser program from the start address. Also the SRAM register will be reset to the condition when this modem was turned on. In addition, this command will initialize not only the software but also the hardware of this modem. It takes about 300ms. After the completion of initialization, a response message of "OK" will be returned to the host computer.

@COP

: Setting of the coupler or readout (valid only for mobile stations) 1) Input

: @COPp[CR][LF]

"p" should be 1 or 2 in ASCII code, or enter nothing. Do not input space between "COP" and "p". 2) Processing

: in case of no value for "p";

The current status of the coupler is read out. The message will be;

A space code (0x20) will be added to either side of the "=".

: In case that some value is inputted for "p":

Coupler units will be switched. COP = p [CR] [LF]

p= 1 or 2 in ASCII code 3) Default setting COP = 1 4) Timing of command execution Receiving a command from external I/F, the mobile terminal will carry out the command and return its end message immediately after the disconnection of the coupler is completed. This command will be carried out regardless of the communication status on the feeder. p.12 1M36Q123 rev 0.1 10. ADDRESS The effective addresses for mobile stations are from 400 through FFF. Use rotary switch for setting. Set the address at "001" when sending data to the fixed station from mobile stations. p.13 1M36Q123 rev 0.1 11. INDICATORS POWER TX RX LEVEL When green LED is on, the power is on. When green LED is off, there is no packet. When green LED is on, packets have been sent to feeder cables. Combinations of eight LEDs indicate the levels of the signal intensity. 1 LEDs ON : < -80dBm 2 LEDs ON : < -70dBm 3 LEDs ON : > =-70dBm p.14 1M36Q123 rev 0.1 12. EXTERNAL RESET The following connector is equipped with this modem so that the hardware of this modem can be reset externally.

: J.S.T. Mfg Co., Ltd S3B-XH-SM3-TB Connector type In order to reset this modem externally, short #2 and #3 pins of the RESET connector in the picture 11-1 more than 10ms: then disconnect them. p.15 1M36Q123 rev 0.1 13. PRODUCT SPECIFICATION 13-1. Communication characteristics of feeder cable Notes Item FSK mode Down link frequency band (receiver) Up link frequency band (transmitter) Frequency band per channel Interval between frequency channels Number of frequency channels Communication speed Low Speed OFDM mode Down link frequency band (receiver) Up link frequency band (transmitter) Frequency band per channel Interval between frequency channels Number of frequency channels Communication speed High Speed OFDM mode frequency band (transmitter / receiver) Frequency band per channel Interval between frequency channels Number of frequency channels Communication speed Common to All mode Emission power Reception signal intensity Addresses for mobile modems (own address) Communication mode 13-2. External I/F specification Item Connector Communication standards Communication speed Communication method 230 MHz 235 MHz 151 MHz 156 MHz 100 kHz 100 kHz 50 100 kbps 230 MHz 235 MHz 151 MHz 156 MHz 100 kHz 100 kHz 50 Up to 105 kbps 302 MHz 321 MHz 0.87 MHz 1MHz 20 1,054 kbps FCC part15 Class B 46dBV/m at 3m

-87dBm (at 100kbs, PER 10-1 ) 400hFFFh(3072 addresses Full-Duplex Packet mode Notes D-sub 9 pins RS-232C, RS-422(Specially defined pin assignments are used for this product.) 19.2kbps, 115.2kbps, 921.6kbps RS-232C,RS-422 Full-Duplex Packet mode p.16 1M36Q123 rev 0.1 13-3. mobile station's general specification Item Voltage of the power source Consumption power Outer dimensions Weight Material of the chassis Surface treatment of the chassis and color Operating temperature range Storage temperature range Operating humidity rage Storage humidity range Anti-vibration Anti-shock Anti-electro static Notes DC 24V +/- 10%

7.5W 102(D) x 116(W) x 35(H) mm Approx. 450g Iron (1 mm thickness) Surface treatment : Coating on bonded steel Color

: DIC 546 1/2 (Dainippon Ink)

-10C to +50C

-20C to +70C 35%RH to 95%RH (under no condensation) 35%RH to 95%RH (under no condensation) The product should survive the following vibration test;

Vibration amplitude : 3.5mm Frequency : 10Hz 2 hours for back and forth 2 hours for left and right 4 hours for up and down The product should survive the following shock test;

Acceleration : 500 m/s2 3 times along with 3 axis, total 9 times500 m/s2 Apply following high voltage Input/output

: 2kV (contact discharge) There should be no malfunction after test.

: 4kV (contact discharge) There should be no damage after test. The test follows IEC61000-4-2 p.17 1M36Q123 rev 0.1 14. FREQUENCY CHANNEL 14-1. FSK mode Channel No. Frequency Down-link

[MHz]

Up-link

[MHz]

Channel No. Frequency Down-link

[MHz]

Up-link

[MHz]

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 230.05 230.15 230.25 230.35 230.45 230.55 230.65 230.75 230.85 230.95 231.05 231.15 231.25 231.35 231.45 231.55 231.65 231.75 231.85 231.95 232.05 232.15 232.25 232.35 232.45 151.05 151.15 151.25 151.35 151.45 151.55 151.65 151.75 151.85 151.95 152.05 152.15 152.25 152.35 152.45 152.55 152.65 152.75 152.85 152.95 153.05 153.15 153.25 153.35 153.45 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 232.55 232.65 232.75 232.85 232.95 233.05 233.15 233.25 233.35 233.45 233.55 233.65 233.75 233.85 233.95 234.05 234.15 234.25 234.35 234.45 234.55 234.65 234.75 234.85 234.95 153.55 153.65 153.75 153.85 153.95 154.05 154.15 154.25 154.35 154.45 154.55 154.65 154.75 154.85 154.95 155.05 155.15 155.25 155.35 155.45 155.55 155.65 155.75 155.85 155.95 p.18 1M36Q123 rev 0.1 14-2. Low Speed OFDM mode Channel No. Frequency Down-link

[MHz]

Up-link

[MHz]

Channel No. Frequency Down-link

[MHz]

Up-link

[MHz]

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 230.05 230.15 230.25 230.35 230.45 230.55 230.65 230.75 230.85 230.95 231.05 231.15 231.25 231.35 231.45 231.55 231.65 231.75 231.85 231.95 232.05 232.15 232.25 232.35 232.45 151.05 151.15 151.25 151.35 151.45 151.55 151.65 151.75 151.85 151.95 152.05 152.15 152.25 152.35 152.45 152.55 152.65 152.75 152.85 152.95 153.05 153.15 153.25 153.35 153.45 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 232.55 232.65 232.75 232.85 232.95 233.05 233.15 233.25 233.35 233.45 233.55 233.65 233.75 233.85 233.95 234.05 234.15 234.25 234.35 234.45 234.55 234.65 234.75 234.85 234.95 153.55 153.65 153.75 153.85 153.95 154.05 154.15 154.25 154.35 154.45 154.55 154.65 154.75 154.85 154.95 155.05 155.15 155.25 155.35 155.45 155.55 155.65 155.75 155.85 155.95 p.19 1M36Q123 rev 0.1 14-3. High Speed OFDM mode Channel No. 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 Frequency[MHz]

302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 p.20

FDK32TU Label location FCC Label (US) NCC Label (Taiwan) Fixed Modem FDK32TU FCC ID AZP-FDK32TU 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.

(2) this device must accept any interference received, including interference that may cause undesired operation. XXXXXXXXXXXXXX FCC Label NCC Label

Futaba Futaba Corporation Engineering Department System Solution Business Center 1080 Yabutsuka Chosei-mura Chosei-gun Chiba 299-4395 JAPAN Date (19/01/2022) TUV SUD America Inc. 10 Centennial Drive Peabody, MA 01960, USA Dear Sir or Madam, We, Futaba Corporation, 1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan, hereby authorize Mr. Hiroaki Suzuki of TUV SUD Japan Ltd., 5-4149-7, Hachimanpara, Yonezawa-

shi, Yamagata, 992-1128 Japan (phone: +81-238-40-1681), to act as our agent in all matters relating to applications for equipment authorization, including the signing of all documents relating to these matters. Yours sincerely, ToAikazu Homa Name: Toshikazu Hama Title: Manager

Futaba Futaba Corporation Engineering Department System Solution Business Center 1080 Yabutsuka Chosei-mura Chosei-gun Chiba 299-4395 JAPAN Date (19/01/2022) Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Confidentiality Request FCC ID: AZP-FDK32TU Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission's Rules, Futaba Corporation, hereby requests permanent confidential treatment of information accompanying this application as outlined below: . Schematics Block Diagrams Theory of Operation (Operational Description) The above 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. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Toshi fa eu Ha mea Name: Toshikazu Hama Title: Manager