C5F7NFCST-45BUUSB Hub (5-Port)

June 04, 1998 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 SUBJECT:DAEWOO Electronics Co., Ltd. FCC ID: C5F7NFCST-45BU Gentlemen: Transmitted herewith, on behalf of DAEWOO Electronics Co., Ltd., is an application for certification of the following USB Hub: FCC ID:C5F7NFCST-45BU MODEL(s):CST-45BU TRADE NAME:DAEWOO EUT TYPE:5-Port USB Hub Attached is the applicant’s attestation statement, measurement report (Radiation emission data, Line Conducted emission data and test plots), FCC ID label and location, test setup photographs, internal and external photographs, block diagram, and the user's manual. Should you have any questions or comments concerning the above, please contact the undersigned.

June 04, 1998 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 SUBJECT:DAEWOO Electronics Co., Ltd. FCC ID: C5F7NFCST-45BU Gentlemen: Transmitted herewith, on behalf of DAEWOO Electronics Co., Ltd., is an application for certification of the following USB Hub: FCC ID:C5F7NFCST-45BU MODEL(s):CST-45BU TRADE NAME:DAEWOO EUT TYPE:5-Port USB Hub Attached is the applicant’s attestation statement, measurement report (Radiation emission data, Line Conducted emission data and test plots), FCC ID label and location, test setup photographs, internal and external photographs, block diagram, and the user's manual. Should you have any questions or comments concerning the above, please contact the undersigned. cc:Mr. Joon H. Lee, Manager Monitor R & D Center DAEWOO Electronics Co., Ltd.

June 05, 1998 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 SUBJECT:DAEWOO Electronics Co., Ltd. FCC ID: C5F7NFCST-45BU Gentlemen: Please note that we are resubmitting the following: 1 Test Report.pdf 2 Cover Letter.pdf 3 FCC ID Label & location.pdf These documents were originally submitted inadvertently with the wrong printer settings. Consequently there is some information missing from these documents. Should you have any questions or comments concerning the above, please contact the undersigned. cc:Mr. Joon H. Lee, Manager Monitor R & D Center DAEWOO Electronics Co., Ltd.

FCC ID SAMPLE LABEL LOCATION LABELLING REQUIREMENTS PER §§ 2.925 & §§ 15.19 The Label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. Fig 12. Sample label (SEE NEXT PAGE)

© 1998 PCTEST Lab FCC ID SAMPLE LABEL LOCATION LABELLING REQUIREMENTS PER §§ 2.925 & §§ 15.19 The Label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time of purchase. Fig 12. Sample label (SEE NEXT PAGE)

Test Report S/N: CT.980529388.C5FAS/NZS 3548 Test Date(s): June 02-03, 1998(IEC/CISPR 22) © 1998 PCTEST LabModel: 519B NVLAP Lab Code: 100431-0 DAEWOO Electronics Co., Ltd. Test Report S/N: CT.980529388.C5FAS/NZS 3548 Test Date(s): June 02-03, 1998(IEC/CISPR 22) © 1998 PCTEST LabModel: 519B NVLAP Lab Code: 100431-0 DAEWOO Electronics Co., Ltd. Test Report S/N: CT.980529388.C5FAS/NZS 3548 Test Date(s): June 02-03, 1998(IEC/CISPR 22) © 1998 PCTEST LabModel: 519B NVLAP Lab Code: 100431-0 DAEWOO Electronics Co., Ltd.

PCTEST Engineering Laboratory, Inc. 6660-B Dobbin Road 6660-B Dobbin Road •• Columbia, MD 21045 Columbia, MD 21045 •• U.S.A. U.S.A. TEL (410) 290-6652 TEL (410) 290-6652 •• FAX (410) 290-6654 FAX (410) 290-6654 http://www.pctestlab.comhttp://www.pctestlab.com CERTIFICATE OF COMPLIANCE DAEWOO Electronics Co., Ltd.Dates of Tests: June 02-03, 1998 541 5-Ga, Namdaemoon-roTest Report S/N: B.980601396.C5F Jung-Gu, Seoul, KOREATest Site: PCTEST Lab., MD U.S.A. Attn: Mr. Joon H. LEE, Manager (R&D Team 1) FCC ID C5F7NFCST-45BU APPLICANT DAEWOO ELECTRONICS CO., LTD. Rule Part(s): FCC Part 15 Subpart B Equipment Class: Class B Peripheral Device (JBP) EUT Type: USB Hub Port(s)/Connector(s): (1) USB Up-stream, (4) USB Down-stream Trade Name / Model: Daewoo ® CST-45BU This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified is ANSI C63.4-1992 (Note Codes: #37). I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. PCTEST certifies that no party to this application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a) TABLE OF CONTENTS ATTACHMENT A: COVER LETTER(S) ATTACHMENT B: ATTESTATION STATEMENT(S) ATTACHMENT C: TEST REPORT SCOPE 1 INTRODUCTION (SITE DESCRIPTION) 2 PRODUCTION INFORMATION 3 DESCRIPTION OF TESTS (CONDUCTED) 4 DESCRIPTION OF TESTS (RADIATED) 5 LIST OF SUPPORT EQUIPMENT 6 TEST DATA (CONDUCTED) 7 TEST DATA (RADIATED) 8 SAMPLE CALCULATIONS 9 ACCURACY OF MEASUREMENT10 LIST OF TEST EQUIPMENT11 TEST SOFTWARE USED12 RECOMMENDATION / CONCLUSION13 ATTACHMENT D: TEST PLOTS ATTACHMENT E: FCC ID LABEL / LOCATION ATTACHMENT F: BLOCK DIAGRAM(S) ATTACHMENT G: SCHEMATIC DIAGRAM(S) ATTACHMENT H: TEST SETUP PHOTOGRAPHS ATTACHMENT I: EXTERNAL PHOTOGRAPHS ATTACHMENT J: INTERNAL PHOTOGRAPHS ATTACHMENT K: USER’S MANUAL Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification MEASUREMENT REPORT Scope - Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission. Company Name:DAEWOO ELECTRONICS CO., LTD. Address:541 5-Ga, Namdaemoon-ro Jung-Gu, Seoul, KOREA Attention:Joon H. LEE, EMC Manager R & D Center Team 1, Monitor Business Division • FCC ID:C5F7NFCST-45BU • Equipment Class:B Digital Device / Peripheral (JBP) • EUT Type:USB Hub • Trade Name(s):DAEWOO ® • Model(s):CST-45BU • Cable(s):Shielded USB • Power Cord(s):Unshielded • Rule Part(s):FCC Part 15 Subpart B • Test Procedure(s):ANSI C63.4 (1992) • Dates of Tests:June 02-03, 1998 • Place of Tests:PCTEST Lab, Columbia, MD U.S.A. • Test Report S/N:B.980601396.C5F Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification 1.1 INTRODUCTION The measurement procedure described in American National Standard for Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ANSI C63.4-1992) was used in determining radiated and conducted emissions emanating from DAEWOO Electronics Co., Ltd. USB Hub FCC ID: C5F7NFCST-45BU. These measurement tests were conducted at PCTEST Engineering Laboratory, Inc. facility in New Concept Business Park, Guilford Industrial Park, Columbia, Maryland. The site address is 6660-B Dobbin Road, Columbia, MD 21045. The test site is one of the highest points in the Columbia area with an elevation of 390 feet above mean sea level. The site coordinates are 39° 11'15" N latitude and 76° 49'38" W longitude. The facility is 1.5 miles North of the FCC laboratory, and the ambient signal and ambient signal strength are approximately equal to those of the FCC laboratory. There are no FM or TV transmitters within 15 miles of the site. The detailed description of the measurement facility was found to be in compliance with the requirements of § 2.948 according to ANSI C63.4 on October 19, 1992. 1.2 PCTEST Location The map at right shows the location of the PCTEST Lab, its proximity to the FCC Lab, the Columbia vicinity area, the Baltimore-Washington International (BWI) airport, and the city of Baltimore, and the Washington, D.C. area. (see Figure1). Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification 2.1 Product Information 2.2 Equipment Description The Equipment Under Test (EUT) is the DAEWOO Electronics Co., Ltd. (Model: CST-45BU) 5-Port USB Hub FCC ID: C5F7NFCST-45BU. Mainboard Chipset(s):TUSB2040A (Texas Instruments) Crystal(s) / Oscillator(s):48.000MHz Port(s) / Connector(s):(1) USB Up-stream (to PC), (4) USB Down-stream Cable(s):Shielded USB Power Supply:from host computer bus Dimensions (WxHxD):240 x 71.6 x 442 mm Weight (net):505g 2.4 EMI Suppression Device(s) EMI suppression device(s) added and/or modified during testing: • none Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification 3.1 Description of Tests 3.2 Conducted Emissions The line-conducted facility is located inside a 16'x20'x10' shielded enclosure. It is manufactured by Ray Proof Series 81 (see Figure 2). The shielding effectiveness of the shielded room is in accordance with MIL-Std-285 or NSA 65-6. A 1m. x 1.5m. wooden table 80cm. high is placed 40cm. away from the vertical wall and 1.5m away from the side wall of the shielded room (see Figure 3). Solar Electronics and EMCO Model 3725/2 (10kHz-30MHz) 50Ω/50μH Line-Impedance Stabilization Networks (LISNs) are bonded to the shielded room (see Figure 4). The EUT is powered from the Solar LISN a…

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© 1998 PCTEST Engineering Lab., Inc. PCTEST Engineering Laboratory, Inc. 6660-B Dobbin Road 6660-B Dobbin Road •• Columbia, MD 21045 Columbia, MD 21045 •• U.S.A. U.S.A. TEL (410) 290-6652 TEL (410) 290-6652 •• FAX (410) 290-6654 FAX (410) 290-6654 http://www.pctestlab.comhttp://www.pctestlab.com CERTIFICATE OF COMPLIANCE DAEWOO Electronics Co., Ltd.Dates of Tests: June 02-03, 1998 541 5-Ga, Namdaemoon-roTest Report S/N: B.980601396.C5F Jung-Gu, Seoul, KOREATest Site: PCTEST Lab., MD U.S.A. Attn: Mr. Joon H. LEE, Manager (R&D Team 1) FCC ID C5F7NFCST-45BU APPLICANT DAEWOO ELECTRONICS CO., LTD. Rule Part(s): FCC Part 15 Subpart B Equipment Class: Class B Peripheral Device (JBP) EUT Type: USB Hub Port(s)/Connector(s): (1) USB Up-stream, (4) USB Down-stream Trade Name / Model: Daewoo ® CST-45BU This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified is ANSI C63.4-1992 (Note Codes: #37). I attest to the accuracy of data. All measurements reported herein were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. PCTEST certifies that no party to this application has been denied the FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a) Lab Code 100431-0 © 1998 PCTEST Engineering Laboratory, Inc. FCC Class B TABLE OF CONTENTS ATTACHMENT A: COVER LETTER(S) ATTACHMENT B: ATTESTATION STATEMENT(S) ATTACHMENT C: TEST REPORT SCOPE 1 INTRODUCTION (SITE DESCRIPTION) 2 PRODUCTION INFORMATION 3 DESCRIPTION OF TESTS (CONDUCTED) 4 DESCRIPTION OF TESTS (RADIATED) 5 LIST OF SUPPORT EQUIPMENT 6 TEST DATA (CONDUCTED) 7 TEST DATA (RADIATED) 8 SAMPLE CALCULATIONS 9 ACCURACY OF MEASUREMENT10 LIST OF TEST EQUIPMENT11 TEST SOFTWARE USED12 RECOMMENDATION / CONCLUSION13 ATTACHMENT D: TEST PLOTS ATTACHMENT E: FCC ID LABEL / LOCATION ATTACHMENT F: BLOCK DIAGRAM(S) ATTACHMENT G: SCHEMATIC DIAGRAM(S) ATTACHMENT H: TEST SETUP PHOTOGRAPHS ATTACHMENT I: EXTERNAL PHOTOGRAPHS ATTACHMENT J: INTERNAL PHOTOGRAPHS ATTACHMENT K: USER’S MANUAL Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU1 DAEWOO 5-Port USB Hub MEASUREMENT REPORT Scope - Measurement and determination of electromagnetic emissions (EME) of radio frequency devices including intentional and/or unintentional radiators for compliance with the technical rules and regulations of the Federal Communications Commission. Company Name:DAEWOO ELECTRONICS CO., LTD. Address:541 5-Ga, Namdaemoon-ro Jung-Gu, Seoul, KOREA Attention:Joon H. LEE, EMC Manager R & D Center Team 1, Monitor Business Division • FCC ID:C5F7NFCST-45BU • Equipment Class:B Digital Device / Peripheral (JBP) • EUT Type:USB Hub • Trade Name(s):DAEWOO ® • Model(s):CST-45BU • Cable(s):Shielded USB • Power Cord(s):Unshielded • Rule Part(s):FCC Part 15 Subpart B • Test Procedure(s):ANSI C63.4 (1992) • Dates of Tests:June 02-03, 1998 • Place of Tests:PCTEST Lab, Columbia, MD U.S.A. • Test Report S/N:B.980601396.C5F Lab Code 100431-0 Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU2 DAEWOO 5-Port USB Hub 1.1 INTRODUCTION The measurement procedure described in American National Standard for Methods of Measurement of Radio- Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9kHz to 40GHz (ANSI C63.4-1992) was used in determining radiated and conducted emissions emanating from DAEWOO Electronics Co., Ltd. USB Hub FCC ID: C5F7NFCST-45BU. These measurement tests were conducted at PCTEST Engineering Laboratory, Inc. facility in New Concept Business Park, Guilford Industrial Park, Columbia, Maryland. The site address is 6660-B Dobbin Road, Columbia, MD 21045. The test site is one of the highest points in the Columbia area with an elevation of 390 feet above mean sea level. The site coordinates are 39° 11'15" N latitude and 76° 49'38" W longitude. The facility is 1.5 miles North of the FCC laboratory, and the ambient signal and ambient signal strength are approximately equal to those of the FCC laboratory. There are no FM or TV transmitters within 15 miles of the site. The detailed description of the measurement facility was found to be in compliance with the requirements of § 2.948 according to ANSI C63.4 on October 19, 1992. 1.2 PCTEST Location The map at right shows the location of the PCTEST Lab, its proximity to the FCC Lab, the Columbia vicinity area, the Baltimore-Washington International (BWI) airport, and the city of Baltimore, and the Washington, D.C. area. (see Figure1). Figure 1. Map of the Greater Baltimore and Metropolitan Washington, D.C. area. Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU3 DAEWOO 5-Port USB Hub 2.1 Product Information 2.2 Equipment Description The Equipment Under Test (EUT) is the DAEWOO Electronics Co., Ltd. (Model: CST-45BU) 5-Port USB Hub FCC ID: C5F7NFCST-45BU. Mainboard Chipset(s):TUSB2040A (Texas Instruments) Crystal(s) / Oscillator(s):48.000MHz Port(s) / Connector(s):(1) USB Up-stream (to PC), (4) USB Down-stream Cable(s):Shielded USB Power Supply:from host computer bus Dimensions (WxHxD):240 x 71.6 x 442 mm Weight (net):505g 2.4 EMI Suppression Device(s) EMI suppression device(s) added and/or modified during testing: • none Test Report S/N: B.980601396.C5FFCC Class B Dates of Tests: June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU4 DAEWOO 5-Port USB Hub 3.1 Description of Tests 3.2 Conducted Emissions The line-conducted facility is located inside a 16'x20'x10' shielded enclosure. It is manufactured by Ray Proof Series 81 (s…

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Test Report S/N: B.980601396.C5FFCC Class B Test Date(s): June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU NVLAP Lab Code: 100431-0 DAEWOO Electronics, Co., Ltd. Test Report S/N: B.980601396.C5FFCC Class B Test Date(s): June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU NVLAP Lab Code: 100431-0 DAEWOO Electronics, Co., Ltd. Test Report S/N: B.980601396.C5FFCC Class B Test Date(s): June 02-03, 1998Certification © 1998 PCTEST LabFCC ID: C5F7NFCST-45BU NVLAP Lab Code: 100431-0 DAEWOO Electronics, Co., Ltd.