Cover Letter and TOC

FCC ID: CB2ACTLHL3

Cover Letter(s)

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FCCID_350062

Johnson Controls, Inc.
Automotive Systems Group
One Prince Center
Holland, MI 49423

August 22, 2003

Federal Communication Commission
Equipment Approval Services, P.O. Box 358315
Pittsburgh, PA 15251-5315
Attention: Authorization & Evaluation Division

RE: Application for Vehicle Level Certification of Johnson Controls Transmitter under 47 CFR 15.231.
FCC ID: ACTLHL3

To whom it may concern,
Submitted here are materials for your consideration in determining the grant of certification for a
Class II permissive change to the Johnson Controls Interior, LLC, Universal Garage Door Opener
product. The FCC ID for this product is CB2ACTLHL3. The change being requested is a “vehicle
level” Class II certification, negotiated by the Prince Corporation (later acquired by Johnson Controls
Interiors) of Holland, MI. Correspondence between Prince Corporations and the FCC in regard to this
testing methodology. A copy of the correspondence regarding this method and a summary of the
procedure are available in the attachment “vehicle_level.pdf”.
This submission is a request for a Class II change. The change made to this device is a change in
the software controlled power settings. The change to these non-volatile memory values were
approved for use in the Acura TL automobile in a previous submission (Form 731 confirmation
#EA504983). The purpose of this report is to notify the commission that Johnson Controls intends to
mount the same module in a different vehicle, the Acura MDX automobile. The only change to this
report was to section “7.4.1.7 390 MHz Vehicle Level”. The measurements in this section were taken
with the CB2ACTLHL3 mounted in the Acura MDX automobile at 10m on the JCI OATS.
As stated in the original grant (Form 731 confirmation #0200587F), the JCI Model CB2ACTLHL3 is
part of the Homelink ® III series. Homelink ® III devices are capable of learning garage door opener
frequencies and codes from the user’s original transmitter. The device is capable of learning in the
range between 288MHz and 420MHz excluding forbidden frequency regions.

Johnson Controls Interiors has invested considerable resources into developing our Homelink ®
products. For this reason we respectfully request that the following items be held as confidential.
• Circuit Block Diagrams
• Theory of Operation
• Schematics

The Federal Communications Commission will be notified, in writing of any changes in the
software/programming of this device that could affect its RF characteristics.

A table of contents for all submitted materials can be found at the end of this letter.

Please do not hesitate to contact me with any questions you may have regarding this report. As
always we look forward to your timely response.

Sincerely,

Jeremy P. Bos
RF Test Site Manager
Johnson Controls Interiors.
Tel: (616)394-6076/Fax: (616)394-6100
Email: Jeremy.bos@jci.com

August 22, 2003 #EA471316

Table of Contents
1. General Information…………………………………………………………………………… 2
1.1. Product Description………………………………………………………………………2
1.2. Related Grants……………………………………………………………………………..2
1.3. Test Methodology…………………………………………………………………………2
1.4. Test Facility………………………………………………………………………………...3
2. Product Labeling………………………………………………………………………………..3
2.1. Label Drawing and Location on Product…...…………………………………………3
3. Test Configuration………………………………………………………………………………3
4. Block Diagram…………………………………………………………………………………...4
5. Test Setup Photographs……………………………………………………………………….4
6. Conducted Emissions Measurements………………………………………………………4
7. Radiated Emissions Data……………………………………………………………………...4
7.1. Summary of Results……………………………………………………………………..4
7.2. Test Equipment Used…………………………………………………………………….4
7.3. Test Equipment Setup and Procedure………………………………………………..5
7.4. Measured Data…………………………………………………………………………….5
7.4.1. Measurements of Fundamentals and Harmonics………………………….5
7.4.1.1. (Table) DUT Tuned to 288MHz (Fundamental)…………………………5
7.4.1.2. (Table) DUT Tuned to 310MHz (Fundamental)…………………………6
7.4.1.3. (Table) DUT Tuned to 418MHz (Fundamental)…………………………6
7.4.1.4. (Table) 288MHz (Harmonics)……………………………………………..6
7.4.1.5. (Table) 310MHz (Harmonics)……………………………………………...7
7.4.1.6. (Table) 418MHz (Harmonics)……………………………………………..8
7.4.1.7. (Table) 390 MHz Fundamental (in vehicle)……………………………..9
7.4.1.8. (Table) 390 MHz Fundamental (on table)……………………………….9
7.4.1.9. (Table) 390 MHz Harmonics………………………………………………9
7.4.2. Pulsed Operation………………………………………………………………10
7.4.2.1. (Figure) 30% Duty Cycle…………………………………………………10
7.4.2.2. (Figure) 50% Duty Cycle…………………………………………………10
7.4.2.3. (Figure) 80% Duty Cycle…………………………………………………11
7.4.3. Occupied Bandwidth………………………………………………………….11
7.4.3.1. (Table) Occupied Bandwidth Measurements………………………..11
7.4.3.2. (Figure) Example of Occupied Bandwidth measurement ………...12
7.4.4. Emission Spectrum…………………………………………………………...12
7.4.4.1. (Figure) 288 MHz………………………………………………………….13
7.4.4.2. (Figure) 310 MHz………………………………………………………….13
7.4.4.3. (Figure) 418 MHz………………………………………………………….14
7.4.4.4. Summary of Emissions Measurements Taken on OATS………….14
7.4.5. Variation of Supply Voltage………………………………………………....15
7.4.5.1. (Figure) Plot of output power over supply voltage…………………15
7.4.5.2. (Table) Output power as a function of supply voltage………….…15
7.4.6. Verification of Non-Operation in Restricted Bands……………………..16
7.4.7. Verification of De-activation after 5 seconds…………………………….16
7.4.8. Tuning Pulse Measurements………………………………………………..16
7.4.8.1. (Figure) Coarse Tuning Pulse (288MHz)…………………………..….16
7.4.8.2. Fine Tuning Pulse (288MHz)……………………………………...….…17
7.4.8.3. Coarse Tuning Pulse (310MHz)…………………………………..…….17
7.4.8.4. Fine Tuning Pulse (310MHz)……………………………………...….…18
7.4.8.5. Coarse Tuning Pulse (418 MHz)……………………………..…….…..18
7.4.8.6. Fine Tuning Pulse (418MHz)……………………………………….…...19
7.4.8.7. Summary of Tuning Pulse Measurements………………………..….19
7.5. Formulas and Sample Calculations………………………………………….…….19
7.5.1. Adjustment to account for duty cycle…………………………….….……19
7.5.2. Calculation of FCC limits from 15.231………………………………….….20

Johnson Controls Interiors, LLC. Page 1 of 2 FCC ID: CB2ACTLHL3

August 22, 2003 #EA471316

8. Photos of Product Tested……………………………………………………………….…20
8.1. Front View
Please refer to attachment named “front_view.jpg”
8.2. Rear View
Please refer to attachment named “rear_view.jpg”
8.3. Unit Disassembled
Please refer to attachment named “d_assym.jpg”
8.4. Light Board
Please refer to attachment named “light_front.jpg”
Please refer to attachment named “light_back.jpg”
8.5. Homelink Accessory Board
Please refer to attachment named “hl3_front.jpg”
Please refer to attachment named “hl3_back.jpg”
9. Other Attachments and Description……………………………………………….……21
9.1. User Manual
Please refer to attachment “user_manual.pdf”
9.2. Schematics/ Tuning Information
For schematics please refer to attachment “schematics.pdf”
For tuning information please refer to attachment “tuning.pdf”
9.3. Theory of Operation
For schematics please refer to attachment “theory_op.pdf”

Johnson Controls Interiors, LLC. Page 2 of 2 FCC ID: CB2ACTLHL3

Document Created: 2003-08-22 08:57:58
Document Modified: 2003-08-22 08:57:58

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