dnb engineering inc - core systems · dnb engineering inc. report of measurements for verification...

DNB ENGINEERING INC.

REPORT OF MEASUREMENTS

for

VERIFICATION OF COMPLIANCE

With

Industry Canada

&

FCC Part 15, Subpart B,

15.107 Conducted Limits

15.109 Radiated Emissions Limits

Class B

For

Core Systems

13000 Danielson Street, Suite Q

Poway, CA 92064

EUT: Rackmount LCD

M/N: G2, ML, MLD, MP, MPR SERIES

Report # RV08101B-001

Prepared By: Maridee Winans

DNB ENGINEERING, INC.

5969 ROBINSON AVENUE

RIVERSIDE, CA 92503

1

TABLE OF CONTENTS

TABLE OF CONTENTS .............................................................................................................................................. 1

1.0 ADMINISTRATIVE DATA .......................................................................................................................... 2

1.1 Request for Verification: ................................................................................................................................ 2

1.2 Verification and Qualifications ...................................................................................................................... 2

1.2.1 Engineering Certification ........................................................................................................................... 2

1.2.2 Measurement Repeatability Information .................................................................................................... 3

2.0 QUICK SUMMARY OF DATA.................................................................................................................... 4

2.1 Ten Highest Radiated Signals ........................................................................................................................ 4

2.2 Conducted Emission Signals .......................................................................................................................... 4

2.3 Test Equipment Log………………………………………………………………………………………….5

3.0 SYSTEM DESCRIPTION ............................................................................................................................. 6

3.1 General Information ....................................................................................................................................... 6

3.2.1 Deviations/modifications to the EUT ........................................................................................................ 7

3.2.2 Deviations/modifications from the Test Standards ................................................................................... 7

3.3 List of Photos ................................................................................................................................................. 7

3.4 Cautions Against Changes In Computing Equipment .................................................................................... 8

3.5 Information Pertaining to Equipment Manufactured After Compliance Testing ........................................... 9

4.0 REPORT OF MEASUREMENTS ............................................................................................................... 10

4.1 Method of Measurements - Radiated Signal Levels ..................................................................................... 10

4.2 Equipment Set Up for Radiated Measurements............................................................................................ 12

4.3 Sample Calculation ...................................................................................................................................... 14

4.5 Biconical Antenna ........................................................................................................................................ 17

4.6 Method of Measurement - Conducted Levels .............................................................................................. 19

4.7 Test Set-Up Conducted ................................................................................................................................ 20

4.7 Test Set-Up Conducted ................................................................................................................................ 21

4.7 Conducted Plots............................................................................................................................................ 22

4.7 Conducted Plots............................................................................................................................................ 23

A P P E N D I X A..................................................................................................................................................... 25

Limits and Requirements ......................................................................................................................................... 25

A P P E N D I X B ..................................................................................................................................................... 29

Equipment Authorization Procedures ...................................................................................................................... 29

2

1.0 ADMINISTRATIVE DATA

1.1 Request for Verification:

Core Systems

13000 Danielson Street, Suite Q

Poway, CA 92064

EUT: Rackmount LCD

Model: G2, ML, MLD, MP, MPR SERIES

1.2 Verification and Qualifications

1.2.1 Engineering Certification

I certify that the tests performed in order to obtain technical data presented in this

application were performed by DNB ENGINEERING, INC. 5969 Robinson

Avenue Riverside, CA 92503. Based on the results of the enclosed data, we have

concluded that the unit under test meets or exceeds the requirements specified in

FCC Part 15, Subpart B, Class B of the Rules and Regulations.

Date: 9 Jul 2010 Thomas Elders

Facility Manager

DNB ENGINEERING, INC.

(951) 637-2630

3

1.2.2 Measurement Repeatability Information

The test data presented in this report has been acquired using the guidelines set forth in ANSI

C63.4 (2003). The test results presented in this document are valid only for the equipment

identified herein under the test conditions described. Repeatability of these test results will only be

achieved with identical measurement conditions. These conditions include the same test distance,

EUT height, measurement site characteristics, and the same EUT and system components. The

system must have the same interconnecting cables arranged in identical placement to that shown in

the setup photos, with the system and/or EUT functioning in the identical mode of operation (i.e.

software and so on) as on the date of the test. Any deviation from the test conditions and

environment on the date of test may result in measurement repeatability difficulties.

All changes made to the EUT during the course of testing as identified in this report must be

incorporated in the EUT or identical models to ensure compliance with the FCC regulations.

Date 9 Jul 2010 Test Engineer

FCC Test Department

Mike Green

4

2.0 QUICK SUMMARY OF DATA

2.1 Ten Highest Radiated Signals

Reference Part 15, Subpart B

Complete data in section 4.4.

Ten Highest Radiated Readings

Freq Meter Ant Cbl Dis Amp Corr Spec Delta Type Tbl Hgt Pol

335.39 54.00 13.8 3.5 -10 -24.47 36.83 37 -0.17 PK 360 1.07 V

163.42 52.00 9.4 2.5 -10 -24.20 29.75 30 -0.25 PK 0 1.67 V

185.73 52.18 8.8 2.5 -10 -24.20 29.31 30 -0.69 QP 340 1.48 V

324.97 53.70 13.3 3.7 -10 -24.45 36.23 37 -0.77 PK 360 1.07 V

192.76 50.90 9.3 2.5 -10 -24.20 28.51 30 -1.49 PK 292 1.00 H

139.38 52.60 7.5 2.3 -10 -24.20 28.14 30 -1.86 PK 292 2.15 H

185.76 50.65 8.8 2.5 -10 -24.20 27.78 30 -2.22 QP 292 1.00 H

151.74 51.30 8.1 2.4 -10 -24.20 27.61 30 -2.39 PK 0 1.67 V

167.42 50.30 8.7 2.6 -10 -24.20 27.42 30 -2.58 PK 0 1.67 V

139.33 51.14 7.5 2.3 -10 -24.20 26.68 30 -3.32 QP 0 1.74 V

Shielded Cables were used to operate this equipment.

NOTE: A low noise wideband preamplifier was inserted

between the antenna and the spectrum analyzer.

The frequency was searched from 30 to 1000 MHz.

2.2 Conducted Emission Signals

The unit passed the Conducted Emissions required.

5

2.3 Test Equipment Log

Asset No Item Manufacturer Model No Serial No Calibration

Date Calibration

Interval Calibration

Due

31 Antenna (Log

Periodic) Emco 3146 1284 03-Jan-09 730 03-Jan-11

387 Pre-Amp H/P 10855A 1250-0212 21-Aug-09 365 21-Aug-10

844 QP Adapter H/P 85650A 2811A01240 30-Sep-09 365 30-Sep-10

1109 Spectrum Analyzer H/P 85662A 2318A05282 30-Sep-09 365 30-Sep-10

1110 Spectrum Analyzer H/P 85680B 2330A02791 30-Sep-09 365 30-Sep-10

1430 RF Pre-Selector H/P 85685A 2724A00659 30-Sep-09 365 30-Sep-10

1758 Antenna (Bicon) AH Systems SAS-200/540 524 02-Jan-09 730 02-Jan-11

1771 Attenuator Alan Attenuator Kit 117018 21-Aug-09 365 21-Aug-10

1874 Cable DNB NMN 11874 21-Aug-09 365 21-Aug-10

1875 Cable DNB RG214 11875 21-Aug-09 365 21-Aug-10

1880 Cable DNB NMN 11880 21-Aug-09 365 21-Aug-10

2180 LISN Fischer FCC-LISN-50-50-4-02 04077 15-Oct-09 365 15-Oct-10

6

3.0 SYSTEM DESCRIPTION

3.1 General Information

1. Applicant: Core Systems 13000 Danielson Street, Suite Q Poway, CA 92064 2. Manufacturer: Core Systems 13000 Danielson Street, Suite Q Poway, CA 92064 3. Equipment Tested: Rackmount LCD a) Designed for: N/A b) Trade Name: N/A c) Model Number: G2, ML, MLD, MP, MPR SERIES d) Serial Number: N/A e) Power Supply : 115 VAC 60Hz 4. Accessories: N/A 5. Date(s) of Test(s): 24 Jun 2010 – 01 Jul 2010

6. Test Report Number: RV08101B-001

7. Place of Measurement: DNB ENGINEERING, INC. 5969 Robinson Avenue Riverside, CA 92503 8. Measurement Procedure: Part 15, Subpart B Class B ANSI C63.4 (2003)

9. Measurement Results: This unit passed all of the requirement specifications as outlined in Industry Canada CS-01 (CISPR 11) and FCC Part 15, Subpart B Class B, ANSI C63.4 (2003).

7


3.2 Deviations

3.2.1 Deviations/modifications to the EUT

None

3.2.2 Deviations/modifications from the Test Standards

None

3.3 List of Photos

System Set Up

1) Radiated Test Set Up In Section 4.5

a) Biconical Antenna

b) Log Periodic Antenna

2) Conducted Test Set Up In Section 4.7

c) Conducted Setup

8


3.4 Cautions Against Changes In Computing Equipment

It has come to the Commissions attention that manufacturers are making changes in

computing equipment on the mistaken assumption that a "minor" change will not

affect the compliance of the computer with the FCC requirements.

The adoption of the Verification procedure has reduced the burden on the

manufacturer by relieving him of the need to file an application with the

Commission and wait for the Commission's response before starting to market his

product. In relieving the manufacturer of the filing and waiting burden, the

Commission made the manufacturer responsible for the continued compliance of

his product. It cannot be stressed too strongly that the manufacturer has the

responsibility to avoid changes unless a firm determination is made that the change

will not throw the product out of compliance. While a detailed analysis will help

make such a determination, the preferred method is by testing the revised product.

The manufacturer is cautioned that many changes, which seem insignificant, are

very significant. Thus a change in the layout of a circuit board, the addition,

removal, or even rerouting of a wire, or even a change in the logic will almost

surely change the emission characteristics (both conducted and radiated) of the

device. This is particularly true of a device housed in a non-metallic enclosure. Of

the methods available to determine if the product is out of compliance with these

changes in characteristics, the best is retesting.

Manufacturers of computing equipment are urged to test products coming off the

production line on a regular schedule. Such testing provides assurance that the

quality of the final product has not deteriorated. Also, such a regular schedule of

testing will detect any changes that may inadvertently creep into the production

process.

9


3.5 Information Pertaining to Equipment Manufactured

After Compliance Testing

Manufacturers should be aware that the FCC requires all products manufactured and shipped be compliant with its Rules. The testing of and early production unit is sufficient to meet the basic requirements either for Verification or Certification. However, seemingly small changes to the product design can make a significant difference in the product's EMI characteristics. Such changes include the changing of logic, the addition of options, the changing of power supplies, interboard cable routing or other changes normally falling under the category of value engineering.

Thus, it is prudent that manufacturers have an established Quality Assurance program to spot-check their products on a periodic basis, either based upon time or quantities produced. Obviously, a change in the engineering design should be sufficient justification for a repeated test.

The Quality Assurance test need not be formal Verification or Certification such as required during the initial production of the product. However, it should be sufficient in scope to assure that the EMI characteristics of the product have not changed to the degree that the product exceeds the FCC limits. If a new model of a product is produced, it must undergo full Verification or Certification testing and, in case of Certification, be filed with the FCC.

It is expected that the FCC will place greater emphasis and resources in

spot-checking commercially available products. If a product is found not to be

compliant with the Limits specified in Part 15, Subpart B, the manufacturer will be

subject to the appropriate penalties imposed by the Commission. The initial

Certification or Verification is sufficient to justify initial production. The additional

quality assurance testing performed is the manufacturer's responsibility to assure

continued compliance.

10

4.0 REPORT OF MEASUREMENTS

Measurements were made to determine compliance with FCC Rules and

Regulations Part 15, Subpart B.

4.1 Method of Measurements - Radiated Signal Levels

Emission levels were measured using the procedure set forth in FCC METHODS

OF MEASUREMENTS OF RADIO NOISE EMISSIONS FROM COMPUTING

DEVICES and ANSI C63.4 (2003) or in accordance with International Standard

CISPR 11.

The EUT is placed upon a rotating table on a 3-meter open field site for final

measurements.

The field intensity measurements are made using standard techniques with a

spectrum analyzer as the calibrated receiver. Preamplifiers and filters are used with

the analyzer when required.

The Hewlett Packard Model 8566B Spectrum Analyzer is calibrated to read signal

level in:

0 dBm (50 ohms) = 107 dB V (50 ohms)

The signal level (dB V) = indicated signal level (-dBm) + 107 dB. To the signal

level in dB V/m it is necessary to add the antenna factor in dB.

11

4.0 REPORT OF MEASUREMENTS (Continued)

4.1 Method of Measurements - Radiated Signal Levels (Continued)

The receiver antennas used in these tests are the A.H. Systems Biconical Antenna

(Model SAS 200/540), the Electro-Mechanics (EMCO) Log Periodic (Model

3146), and the Empire Device (Models DM-105-T1, T2, and T3) dipole antennas.

The antenna is attached to a wooden supporting mast. The mast is 4 1/2 meters high

and is self-supporting. The height of the carriage with the antenna attached can be

varied from 1 to 4 meters. Positioning of the carriage is controlled by a nylon rope

and pulley arrangement at the analyzer (FIM) location.

The EUT is placed on a wooden table, which rests on a wooden turntable. (See 3.2).

The top of the table is one meter above the ground. The turntable can be rotated 360

degrees.

For each frequency measured, the antenna is raised and lowered for both horizontal

and vertical polarity to obtain the maximum reading on the analyzer. The turntable

is also rotated throughout 360 degrees in azimuth to determine the position of

maximum emissions.

12


4.2 Equipment Set Up for Radiated Measurements

Measurements of Field Strength - per FCC Part 15 Subpart B, 4.1.1, 4.2.4, and 4.7.

Test Equipment:

Hewlett Packard Spectrum Analyzer Model 8568B

Hewlett Packard Quasi-Peak Adapter Model 85650A

Hewlett Packard Computer Model 9836

Hewlett Packard Plotter Model 7470A

Hewlett Packard Printer Model 9876A

Hewlett Packard Low-Noise Wide-band PreAmp Model 10855A

Avantek Low-Noise Wide-band PreAmp Model VTO511

Calibration: All equipment is calibrated per MIL-STD-45662 and is in current calibration.

Antennas

X A.H. Systems Biconical Model SAS 200/540 S/N 138

X EMCO Log Periodic Model 3146, S/N 1284

Ailtech Tunable Dipole Set: DM-105A-T1 S/N 95412-23

DM-105A-T2 S/N 95413-23 DM-105A-T3

S/N 95414-23

ANALYZER and QPA CONTROL SETTINGS*

Pre-Detection Bandwidth Post Detection B/W

QP Adapter Spectrum Analyzer Off

Bypass 1 kHz

200 Hz 10 kHz 10 kHz

9 kHz 100 kHz 100 kHz

X 120 kHz X 1 MHz X 1 MHz

*Instrument Detector Mode Peak Quasi-Peak Average

*Test Distance in Meters 1 3 10 30

(*) Unless otherwise noted on data sheets.

13


4.2 Equipment Set Up for Radiated Measurements

Figure 2: Open Area Test Site

RotatingWoodingPlatform

DeviceUnder Test

Adjustable1-4 Meters

1 Meter FIM

3 or 10 Mtrs

14


4.3 Sample Calculation

Measurement distance = 10 meters

Spectrum Analyzer (FIM) reading 60.0 dBV

Antenna Factor (add) 12.0 dB

Cable Loss (add) 1.5 dB

Preamplifier Gain (subtract) 26.0 dB

Corrected Reading 47.5 dBV/m

To convert dB V/m into V/m use the following formula:

V/m = antilog

dBV/m

20

15


4.4 Complete Radiated Data

5969 Robinson Avenue

Riverside, CA 92503

(951) 637-2630

FAX (951) 637-2704

15.109 Radiated Emissions Limits

EMI Datasheet (ITE Devices)

DNB Job Number: RV08101B-001 Date: 1 Jul 2010 Specification

[X] FCC Part 15

Class B

[X] IC CS-01

Class B

Customer: Core Systems

Model Number: G2, ML, MLD, MP, MPR SERIES Serial Number: N/A

Description:

Rackmount LCD

Test Equip: (see pg 5) Asset #’s 31, 387, 844, 1109, 1110, 1430, 1758, 1874, 1875, 1880

11881880

EUT performed within the requirements of the applicable Standard(s) [X] YES [ ] NO Signed Mike Green

Freq = Frequency of measurement Meter = Amplitude of meter reading Ant = Antenna Correction Factor Cbl = Cable Loss Dis = Distance Correction Factor = 20*LOG10(Test Distance/ Specification Distance) Amp = Preamplifier Gain

Corr = Corrected amplitude (meter + ant + cbl +dis + amp)

Spec = FCC Limit Delta = Margin (Corrected – FCC limit) Type = Type of peak detector PK = Peak reading QP = Quasi-peak reading Tbl = Angle of turn table Hgt = Height of antenna Pol = Antenna polarity V = Vertical H = Horizontal


30.05 49.60 4.0 0.9 -10 -24.37 20.18 30 -9.82 PK 0 1.00 V

30.05 41.80 4.0 0.9 -10 -24.37 12.38 30 -17.62 PK 0 1.00 V

48.04 34.60 9.0 1.2 -10 -24.31 10.45 30 -19.55 PK 150 1.50 V

75.63 44.20 8.5 1.6 -10 -24.25 19.97 30 -10.03 PK 38 1.00 V

109.14 45.80 5.9 1.9 -10 -24.20 19.31 30 -10.69 PK 38 1.00 V

126.03 48.00 6.7 2.0 -10 -24.20 22.52 30 -7.48 PK 360 1.51 V

139.30 54.70 7.5 2.3 -10 -24.20 30.24 30 0.24 PK 0 1.74 V

139.33 51.14 7.5 2.3 -10 -24.20 26.68 30 -3.32 QP 0 1.74 V

144.63 55.10 7.6 2.3 -10 -24.20 30.80 30 0.80 PK 0 1.89 V

144.56 50.44 7.6 2.3 -10 -24.20 26.14 30 -3.86 QP 0 1.89 V

151.74 51.30 8.1 2.4 -10 -24.20 27.61 30 -2.39 PK 0 1.67 V

156.24 53.40 9.1 2.5 -10 -24.20 30.80 30 0.80 PK 0 1.67 V

155.26 43.82 8.9 2.5 -10 -24.20 20.99 30 -9.01 QP 0 1.67 V

163.42 52.00 9.4 2.5 -10 -24.20 29.75 30 -0.25 PK 0 1.67 V

163.62 41.83 9.4 2.5 -10 -24.20 19.55 30 -10.45 QP 0 1.67 V

167.42 50.30 8.7 2.6 -10 -24.20 27.42 30 -2.58 PK 0 1.67 V

185.79 55.00 8.8 2.5 -10 -24.20 32.13 30 2.13 PK 340 1.48 V

16


185.73 52.18 8.8 2.5 -10 -24.20 29.31 30 -0.69 QP 340 1.48 V

217.43 46.80 10.2 2.9 -10 -24.23 25.63 30 -4.37 PK 340 1.48 V

252.04 35.50 12.5 3.1 -10 -24.30 16.80 37 -20.20 PK 357 1.48 V

300.04 37.70 12.4 3.4 -10 -24.40 19.09 37 -17.91 PK 0 1.48 V

320.72 44.80 13.1 3.7 -10 -24.44 27.23 37 -9.77 PK 173 1.48 V

324.97 53.70 13.3 3.7 -10 -24.45 36.23 37 -0.77 PK 360 1.07 V

335.39 54.00 13.8 3.5 -10 -24.47 36.83 37 -0.17 PK 360 1.07 V

335.56 46.68 13.8 3.5 -10 -24.47 29.51 37 -7.49 QP 360 1.07 V

49.85 34.80 9.1 1.2 -10 -24.30 10.80 30 -19.20 PK 271 1.25 H

114.83 34.50 5.7 1.9 -10 -24.20 7.95 30 -22.05 PK 0 1.99 H

120.03 35.10 5.8 1.9 -10 -24.20 8.65 30 -21.35 PK 0 1.99 H

139.38 52.60 7.5 2.3 -10 -24.20 28.14 30 -1.86 PK 292 2.15 H

139.32 48.81 7.5 2.3 -10 -24.20 24.35 30 -5.65 QP 292 2.15 H

144.59 50.40 7.6 2.3 -10 -24.20 26.10 30 -3.90 PK 292 2.15 H

167.46 42.70 8.7 2.6 -10 -24.20 19.81 30 -10.19 PK 292 2.15 H

185.71 53.50 8.8 2.5 -10 -24.20 30.63 30 0.63 PK 292 1.00 H

185.76 50.65 8.8 2.5 -10 -24.20 27.78 30 -2.22 QP 292 1.00 H

192.76 50.90 9.3 2.5 -10 -24.20 28.51 30 -1.49 PK 292 1.00 H

192.77 48.65 9.3 2.5 -10 -24.20 26.26 30 -3.74 QP 292 1.00 H

232.13 40.60 11.0 3.2 -10 -24.26 20.49 37 -16.51 PK 292 1.00 H

287.73 48.30 12.3 3.2 -10 -24.38 29.39 37 -7.61 PK 80 1.25 H

352.78 41.10 14.5 3.5 -10 -24.51 24.54 37 -12.46 PK 309 1.06 H

403.90 40.00 15.8 4.0 -10 -24.61 25.15 37 -11.85 PK 309 1.06 H

480.93 36.90 17.6 4.4 -10 -24.76 24.13 37 -12.87 PK 326 1.06 H

17


4.5 Biconical & Log Periodic Antenna

FCC Part 15 Subpart B Class B Radiated Emissions

(Biconical Antenna 30-200 MHz)

18


4.5 Biconical & Log Periodic Antenna

FCC Part 15 Subpart B Class B Radiated Emissions

(Log Periodic Antenna 200-1000 MHz)

19


4.6 Method of Measurement - Conducted Levels

The EUT was connected per 3.4.2. A spectrum analyzer was used with an Artificial Mains Network (LISN) constructed per the schematic shown as 3.4.2 (Line Conducted Test Setup). Test method used was per 5.0, 5.1, 5.3, 5.4, 5.5, and 5.5.1.

The spectrum was searched from 450 kHz to 30 MHz. Particular attention was given to all crystal frequencies and their harmonics.

POWER LINE CONDUCTED EMISSIONS

Measurement of Power Line Conducted Signal Strength (Per FCC Part 15, Subpart B, 5.0, 5.1, 5.3, 5.4, 5.5, 5.5.1, and 5.5.2 or VDE 0871)

Test Equipment: Hewlett Packard Spectrum Analyzer Model 8568B Hewlett Packard Quasi Peak Adapter Model 85650A Hewlett Packard Computer/Controller Model 9836T Hewlett Packard Printer Model 9876A Hewlett Packard Plotter Model 9872C DNB Eng., Inc. 5 kHz HPF Model DNBE 005 Schwarzbeck Artificial Mains Ntwk. Model B120288 *Instrument Detector Mode Peak Quasi-Peak Average

ANALYZER and QPA CONTROL SETTINGS*

Frequency Span in MHz

Detector Bandwidths

Pre Post (Video)

QP S/A Off

.010 - .150 200 Hz 30 kHz 30 kHz

.150 - 30.0 9 kHz 100 kHz 100 kHz

.450 - 30.0 9 kHz 100 kHz 100 kHz

.450 - 30.0 Bypass 10 kHz 10 kHz

All phases were scanned. Refer to attached data sheets. AMN = Artificial Mains Network

20


4.7 Test Set-Up Conducted

Figure 4 : Conductive Emissions Set Up

EUT = Equipment Under Test

S/A = Spectrum Analyzer (Field Intensity Meter)

115/230 Vac into Filter then to AMN then to EUT.

Remotely located S/A measures rf levels being conducted into the power mains.

S/A

FilterAMN EUT80cm

40cm

80cm

Wooden Table

Conductive Wall

ConductiveFloor

21


4.7 Test Set-Up Conducted

22


4.7 Conducted Plots


Riverside, CA 92503

(951) 637-2630

FAX (951) 637-2704


Conducted Datasheet (ITE)

DNB Job Number: RV08101B-001 Date: 24 Jun 2010 Specification

[X] FCC Part 15 Class B

[X] IC CS-01 Class B



Description: Rackmount LCD

Test Equip: (see pg 5) Asset #’s 844, 1109, 1110, 1771, 2180


23


4.7 Conducted Plots


Riverside, CA 92503

(951) 637-2630

FAX (951) 637-2704











24


4.7 Conducted Plots


Riverside, CA 92503

(951) 637-2630

FAX (951) 637-2704











25

A P P E N D I X A

Limits and Requirements

26

Class B Digital Device: Radiation Limits

Emanations from a Class B digital device, including any network or conductors and apparatus

connected thereto, shall not exceed the level of field strength specified in the table below.

FREQUENCY DISTANCE FIELD STRENGTH

(MHz) (Meters) ( V/m)

30-88 10 100

88-216 10 150

216-960 10 200

ABOVE 960 10 500

A Class B Digital Device: Conduction Limits

All conducted emissions from a Class B device, or accessory connected thereto, intended to be

connected to the power lines of a public utility shall not exceed the level of voltage specified in the

table below.

FREQUENCY (MHz) MAXIMUM RF LINE VOLTAGE

0.45 - 30.0 250 V

Class B Digital Device: Verification Requirement

Each Class B digital device shall be tested and verified by the manufacturer as being capable of

complying with the specifications of this Subpart. Certification by the Commission is not

required; however, the Commission reserves the right to request additional testing to verify

compliance, and if necessary, to require certification by the Commission.

27

Information to User

(a) For a Class B digital device or peripheral, the instructions furnished the user shall include the

following or similar statement, placed in a prominent location in the text of the manual:

NOTE, This equipment has been tested and found to comply with the limits 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 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 does cause harmful

interference to radio or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try and correct the interference by one or

more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and the receiver.

- Connect the equipment into a outlet on a circuit different from that to which the

receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

28

15.816 Class B Digital Device: Labeling Requirement

( a ) Receivers associated with the operation of a licensed radio service, e.g., FM broadcast under

part 73 of this chapter, land mobile operation under part 90, etc., shall bear the following statement

in a conspicuous location on the device:

( b ) A stand-alone cable input selector switch, shall bear the following statement in a conspicuous

location on the device:

( c ) All other devices shall bear the following statement in a conspicuous location on the device:

This device complies with Part 15 of FCC Rules. Operation is subject to the condition

that this device does not cause harmful interference.

This device is verified to comply with part 15 of the FCC Rules for use with cable

television service.

This device complies with part 15 of 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.

29

A P P E N D I X B

Equipment Authorization Procedures

30

Authority: Secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; Sec. 302, 82 Stat. 209, 47

U.S.C. 154, 302, 303, 307.

Source: 39 FR 5919, Feb. 15, 1974, unless otherwise noted.

GENERAL PROVISIONS

2.901 Basis and Purpose.

(a) In order to carry out its responsibilities under the Communications Act and the

various treaties and international regulation, and in order to promote efficient use of

the radio spectrum, the Commission has developed technical standards for radio

frequency equipment and parts or components thereof. The technical standards

applicable to individual types of equipment are found in that part of the rules

governing the service wherein the equipment is to be operated. In addition to the

technical standards provided, the rules governing the service may require that such

equipment receive an equipment authorization from the Commission by one of the

following procedures: type approval, type acceptance, certification, registration or

notification.

(b) The following sections describe the verification procedure and the procedures

to be followed in obtaining type approval, type acceptance, certification or

notification from the Commission and the conditions attendant to such a grant.

[48 FR 3620, Jan. 26, 1983]

2.902 Verification

(a) Verification is a procedure where the manufacturer makes measurements or

takes the necessary steps to insure that the equipment complies with the appropriate

technical standards. Submittal of a sample unit of representative data to the

Commission demonstrating compliance is not required unless specifically

requested by the Commission pursuant to 2.957, of this part.

(b) Verification attaches to all items subsequently marketed by the manufacturer of

importer, which are identical as defined in 2.908 to the sample tested and found

acceptable by the manufacturer.

[Secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; 47 U.S.C. 154, 303, 307]

[46 FR 23249, Apr. 24, 1981]

31

2.903 Type Approval

(a) Type approval is an equipment authorization issued by the Commission based

on examination and measurement of one or more sample units by the Commission

at its laboratory.

(b) Type approval attaches to all units subsequently marketed by the grantee which

are identical (See 2.908) in all respects to the sample tested by the Commission or

include only changes authorized by the Commission pursuant to 2.967.

[39 FR 5919, Feb. 15, 1974; 39 FR 8617, Mar. 6 1974, as amended at 39 FR 27802, Aug. 1, 1974]

2.904 Notification

(a) Notification is an equipment authorization issued by the Commission whereby

the applicant makes measurements to determine that the equipment complies with

the appropriate technical standards and reports that such measurements have been

made and demonstrate the necessary compliance. Submittal of a sample unit or

representative data to the Commission demonstrating compliance is not required

unless specifically requested by the Commission pursuant to 2.936, 2.943, or 2.945.

(b) Notification attaches to all items subsequently marketed by the grantee, which

are identical, as defined in 2.908, to the sample(s) tested and found acceptable by

the grantee.

(c) Permissive changes or other variations authorized by the Commission to

equipment under the notification procedure shall be made in accordance with the

restrictions contained in 2.977.

(d) For equipment, which requires a grant of notification, authorization under type

acceptance, type approval, or certification shall be deemed to constitute

authorization of the equipment under notification.

[48 FR 3621, Jan. 26, 1983, as amended at 49 FR 3996, Feb. 1, 1984]

32

2.905 Type Acceptance

(a) Type acceptance is an equipment authorization issued by the Commission for

equipment to be used pursuant to a station authorization. Type acceptance is based

on representations and test data submitted by the applicant.

(b) Type acceptance attaches to all units subsequently marketed by the grantee

which are identical (See 2.908) to the sample tested except for changes or other

variation authorized by the Commission pursuant to 2.1001.

[39 FR 5919, Feb. 15, 1974; 39 FR 8617, Mar. 6, 1974, as amended at 39 FR 27802, Aug. 1, 1974]

2.907 Certification

(a) Certification is an equipment authorization issued by the Commission for

equipment designed to be operated without individual license under Parts 15 and 18

of its rules, based on representations and test data, submitted by the applicant.

(b) Certification attaches to all units subsequently marketed by the grantee which

are identical (See 2.908) to the sample tested except for permissive changes or

other variations authorized by the Commission pursuant to 2.1043.

[39 FR 5919, Feb. 15, 1974, as amended at 39 FR 27802, Aug. 1, 1974]

2.908 Identical Defined

As used in this subpart, the term identical means identical within the variation that

can be expected to arise as a result of quantity production techniques.

[Secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; 47 U.S.C. 154, 303, 307]

[46 FR 23249, Apr. 24, 1981]

33

CONDITIONS ATTENDANT TO A GRANT OF AN EQUIPMENT AUTHORIZATION

2.927 Limitations on Grants

(a) A grant of an equipment authorization is effective until revoked or withdrawn,

rescinded, surrendered, or a termination date is otherwise established by the

Commission.

(b) A grant of an equipment authorization signifies that the Commission has

determined that the equipment has been shown to be capable of compliance with

applicable technical standards if no unauthorized change is made in the equipment

and if the equipment is properly maintained and operated. The issuance of an

equipment authorization should not be construed as a finding by the Commission

with respect to matters not encompassed by the Commission's rules.

(c) No person shall, in any advertising matter, brochure, etc., use or make reference

to an equipment authorization in a deceptive or misleading manner or convey the

impression that such equipment authorization reflects more than a Commission

determination that the device of product has been shown to be capable of

compliance with the applicable technical standards of the Commission's rules.

(d) The issuance of an equipment authorization for a wireless microphone reflects

no more than a Commission determination that the device has been shown to be

capable of compliance with the applicable of compliance with the applicable

technical standards of the Commission's Rules, and should not be construed as a

finding by the Commission as to matters not encompassed by the rules, especially

with respect to compliance with 18 U.S.C. 2512.

[39 FR 5919, Feb. 15, 1974, as amended at 44 FR 29066, May 18, 1979]

34

2.929 Nonassignability of an Equipment Authorization

(a) An equipment authorization issued by the Commission may not be assigned,

exchanged or in any other way transferred to a second party.

(b) The grantee of an equipment authorization may license or otherwise authorize a

second party to manufacture or market the equipment covered by the grant of the

equipment authorization provided:

(1) The equipment manufactured by such second party bears the identical name and

number as is set out in the grant of the equipment authorization.

Note: Any change in the name or number desired as a result of such production of

marketing agreement will require the filing of a new application for as equipment

authorization as specified in 2.933.

(2) The grantee of the equipment authorization shall continue to be responsible to

the Commission for the equipment produced pursuant to such an agreement.

(3) Notice that such a licensing agreement has been entered in shall be provided to

the Commission within 30 days after the execution of the agreement. The notice

shall indicate with specificity the equipment involved, the date of application and

date of grant of the equipment authorization, and shall indicate the provisions that

the grantee has made to insure that equipment manufactured by such licensee will

continue to comply with the Commission's regulations. The Commission may

require the submission of additional information (new measurement date, etc.)

depending on the circumstances in the particular case.

35

2.931 Responsibility of the Grantee

In accepting a grant of an equipment authorization the grantee warrants that each

unit of equipment marketed under such grant and bearing the identification

specified in the grant will conform to the unit that was measured and that the data

(design and rated operational characteristics) determined by the grantee for

notification, filed with the application for type acceptance type approved

equipment, continues to be representative of the equipment being produced under

such grant within the variation that can be expected due to quantity production and

testing on a statistical basis.

[48 FR 3621, Jan. 26, 1983]

2.932 Modification of Equipment

(a) A new application for an equipment authorization shall be filed whenever there

is a change in the design, circuitry or construction of an equipment or device for

which an equipment authorization has been issued, except as provided in

paragraphs (b), (c), (d) and (e) of this section.

(b) Permissive changes may be made in a type accepted equipment pursuant to

2.1001.

(c) Permissive changes may be made in a certificated equipment pursuant to

2.1043.

(d) For changes in type approved equipment the procedure in 2.967 shall apply.

(e) Permissive changes may be made in notified equipment pursuant to 2.977.

[39 FR 5919, Feb. 15, 1974, as amended at 48 FR 3621, Jan. 26, 1983]

36

2.933 Change in Identification of Equipment

(a) A new application for an equipment authorization shall be filed whenever there

is a change in the identification of the equipment with or without a change in

design, circuitry or construction.

(b) An application filed pursuant to paragraph (a) of this section where no change in

design, circuitry or construction is involved, need not be accompanied by a

resubmission of equipment or measurement or test data customarily required with a

new application, unless specifically requested by the Commission. In lieu thereof,

the applicant shall attach a statement setting out:

(1) The original identification used on the equipment prior to the change in

identification.

(2) The date of the original grant of the equipment authorization.

(3) The original type approval number assigned by the Commission, if one was

assigned.

(4) How the equipment bearing the modified identification differs from the original

equipment.

(5) Whether the data previously filed with the Commission (or measured by the

Commission in the case of type approved equipment) continues to be representative

of and applicable to the equipment bearing the change identification.

(6) In the case of type accepted equipment, the photographs required by 2.983(f).

(7) In the case of certificated equipment, the photographs required by 2.1033(c).

(c) If the change in identification also involves a change in design or circuitry

which falls outside the purview of a permissive change describe in 2.977, 2.1001 or

2.1043, a complete application shall be filed pursuant to 2.909.

[39 FR 5919, Feb. 15, 1974, as amended at 48 FR 3621, Jan. 26, 1983 FR 39535, Oct. 29, 1986]

2.934 Change in Name of Grantee.

Whenever there is a change in the name of the grantee of an equipment

authorization, notice of such change must be received by the Commission not later

than 60 days after the grantee starts using the new name.

37

2.935 Change in Control of Grantee

In the case of a transfer of control of the grantee of an equipment authorization, as

in the case of sale of merger of the grantee, notice of such transfer must be received

by the Commission not later than 60 days subsequent to the consummation of the

agreement effecting the transfer of control. Depending on the circumstances in

each case, the Commission may require new applications for equipment

authorization for each device or equipment held by the predecessor in interest,

production of which will be continued by the acquiring party.

2.936 FCC Inspection

Each grantee of an equipment authorization shall upon reasonable request, submit

the following to the Commission or shall make the following available for

inspection:

(a) The device or equipment covered by the grant of equipment authorization.

(b) The record or design drawings and specifications required by 2.931(b)(1).

(c) The record of the procedure used for production inspection and testing required

by 2.931(b)(2).

(d) The manufacturing plant and facilities.

[39 FR 5919, Feb. 15, 1974, as amended at 51 FR 39535, Oct. 29, 1986]

38

2.937 Equipment Defect and/or Design Change

When a complaint is filed with the Commission concerning the failure of

equipment marketed under an equipment authorization to comply with pertinent

requirements of the Commission's rules, and the Commission determines that the

complaint is justified and arises out of an equipment fault attributable to the

grantee, the Commission may require the grantee to investigate such a complaint

and report the results of such investigation to the Commission. The report shall

also indicate what action if any has been taken or is proposed to be taken by the

grantee to correct the defect, both in terms of future production and with reference

to articles in the possession of users, sellers and distributors.

2.938 Retention of Records

(a) For each equipment for which an equipment authorization has been issued, the

grantee shall maintain the records listed below:

(1) A record of the original design drawings and specifications and all changes that

have been made that may affect compliance with the requirements of 2.931.

(2) A record of the procedures used for production inspection and testing to insure

the conformance required by 2.931.

(3) For equipment covered under the notification procedure, a record of the test

results that demonstrate compliance with the appropriate regulations.

(b) The provisions of paragraph (a) of this section shall also apply to a

manufacturer of equipment produced under an FCC equipment authorization

pursuant to a license, purchase of other contractual agreements between said

manufacturer and the grantee of the equipment authorization. Retention of records

by said manufacturer in these circumstances shall satisfy the grantee's

responsibility under paragraph (a) of this section.

(c) The records listed in paragraph (a) of this section shall be retained for one year

after the manufacture of said equipment item has been permanently discontinued,

or until the conclusion of an investigation or a proceeding if the grantee (or under

paragraph (b) of this section the manufacturer) is officially notified that an

investigation of any other administrative proceeding involving his equipment has

been instituted.

(d) The records required to be retained by paragraph (a) of this section shall apply

only to equipment for which the equipment authorization was issued on or after

September 1, 1974 or for which the license, purchase or other contractual

agreement in paragraph (b) of this section was signed on or after September 1,

1974.

[39 FR 27802, Aug. 1, 1974, as amended at 48 FR 3621, Jan. 26, 1983]

39

2.939 Revocation or Withdrawal of Equipment Authorization.

(a) The Commission may revoke any equipment authorization:

(1) For false statements or representations made either in the application or in

materials or response submitted in connection therewith or in records required to be

kept by 2.931(b).

(2) If upon subsequent inspection or operation it is determined that the equipment

does not conform to the pertinent technical requirements or to the representations

made in the original application.

(3) If it is determined that changes have been made in the equipment other than

those authorized by the rules or otherwise expressly authorized by the Commission.

(4) Because of conditions coming to the attention of the Commission which would

warrant it in refusing to grant an original application.

(b) Revocation of an equipment authorization shall be made in the same manner as

revocation of radio station licenses.

(c) The Commission may withdraw any equipment authorization in the event of

changes in its technical standards. The procedure to be followed will be set forth in

the order promulgation such new technical standards (after appropriate rule making

proceedings) and will provide a suitable amortization period for equipment in

hands of users and in the manufacturing process.

2.941 Availability of Information Relating to Grants

(a) Grants of equipment authorization, other than for receivers and equipment

authorized for use under Part 15 or 18 of this chapter, will be publicly announced in

a timely manner by the Commission. Information about a receiver authorization or

about the authorization of a specific model of equipment under Parts 15 or 18 of

this chapter may be obtained by contacting the Commission's office of Engineering

and Technology.

(b) Information relating to equipment authorizations such as data submitted by the

applicant in connection with an authorization application, laboratory tests of the

device, etc., shall be available in accordance with 0.457 of this chapter.

[39 FR 5919, Feb. 15, 1974, as amended at 48 FR 3621, Jan. 26, 1983; 51 FR 12616, Apr. 14,

1986]

2.943 Submission of Equipment for Testing

(a) The Commission may require an applicant for type acceptance, certification or

notification to submit one or more sample units for measurement at the

Commission's laboratory.

(b) In the event the applicant believes that shipment of the sample to the

Commission's laboratory is impractical because of the size or weight of the

equipment, or the power requirement, or for any other reason, the applicant may

submit a written explanation why such shipment is impractical and should not be

required.

[39 FR 5919, Feb. 15, 1974, as amended at 48 FR 3621, Jan. 26, 1983]

2.945 Sampling Testing of Equipment Compliance

40

The Commission will, from time to time, request the grantee to submit various

equipment(s) for which an equipment authorization(s) has been granted, to

determine the extent to which subsequent production of such equipment continues

to comply with the data filed by the applicant (or measured by the Commission in

the case of type approved equipment). Shipping costs to the Commission's

laboratory and return shall be borne by the grantee.

[39 FR 27802, Aug. 1, 1974]

2.947 Measurement Procedure

(a) The Commission will accept data, which have been measured in accordance

with the following standards or measurement procedures:

(1) Those set forth in bulletins or reports prepared by the Commission's Office of

Engineering and Technology. These will be issued as required, and specified in the

particular part of the rules where applicable.

(2) Those acceptable to the Commission and published by national engineering

societies such as the Electronic Industries Association, the Institute of Electrical

and Electronic Engineers, Inc., and the American National Standards Institute.

(3) Any measurement procedure acceptable to the Commission may be used to

prepare data demonstrating compliance with the requirements of this chapter.

(b) Information submitted pursuant to paragraph (a) of this section shall completely

identify the specific standard or measurement procedure used.

(c) In the case of equipment requiring measurement procedures not specified in the

references set forth in paragraphs (a) (1) and (2) of this section, the applicant shall

submit a detailed description of the measurement procedures actually used.

(d) A listing of the test equipment used shall be submitted.

(e) If deemed necessary, the Commission may require additional information

concerning the measurement procedures

employed in obtaining the data submitted for equipment authorization purposes.

[42 FR 44987, Sept. 8 1977, as amended at 44 FR 39181, July 5, 1979; 51 FR 12616, Apr. 14,

1986]

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