I88PRESTIGE760VData Service Unit

Safety & Compliance Consulting 29 Sweetman Lane West Milford, NJ 07480-2932 Tel/Fax (973) 728-5141 August 10, 2000 QTK2000-F031 731 Confirmation Number: 13EA98454 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Subject:Original Certification Application for Class B Computing Device Peripheral FCC ID: I88PRESTIGE760V / Data Service Unit, Model PRESTIGE 760V Gentlemen: Enclosed, please find ZyXel Communications Corporation’s application for equipment authorization dated August 10, 2000. The subject device is in compliance with Part 15, Subpart B of the FCC Rules. This device is a HDSL2 high bit-rate digital subscriber Data Service Unit (DSU) designed to provide cost-effective access to high speed HDSL2 service. This device will inter-operate with a frame relay router interface, enabling Internet access over the existing telephone lines. This device uses CPU type ARM50100 that operates at 17.28 MHz clock speed. This device supports V.35 and X.21 synchronous serial interface in data communication equipment and 2-wire T1 data transmission speeds up to 1.544 Mbps. Also, this device is provided with ZyXel Direct Plug-In AC Adapter, type MW48-1601000A. This EUT was network system tested while connected to remote located host computer system through simulated telephone network in representative high-speed data transfer mode. Tests were performed in accordance with ANSI C63.4-1992 to show compliance to CISPR 22 Class B limits. Should you have any questions or comments, please contact the undersigned. Thank you for your attention and cooperation in this matter. Sincerely yours, Richard Mullen Group Manager Safety & Compliance Consulting

QuieTek Corporation Page: 1 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 Attachment 3: EUT Detailed Photographs (1) EUT Photo (2) EUT Photo QuieTek Corporation Page: 2 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (3) EUT Photo (4) EUT Photo QuieTek Corporation Page: 3 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (5) EUT Photo (6) EUT Photo QuieTek Corporation Page: 4 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (7) EUT Photo QuieTek Corporation Page: 5 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (8) EUT Photo QuieTek Corporation Page: 6 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (9) EUT Photo QuieTek Corporation Page: 7 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (10) EUT Photo (11) EUT Photo QuieTek Corporation Page: 8 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (12) EUT Photo (13) EUT Photo QuieTek Corporation Page: 9 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (14) EUT Photo (15) EUT Photo QuieTek Corporation Page: 10 of 10 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 (16) EUT Photo

QuieTek Corporation Page: 1 of 17 FCC Report No.: 007H001FI Accredited Lab. of NVLAP (NIST) NVLAP Lab. Code: 200347-0 EMC Test Laboratory Rev.1 Test Report For Applicant : ZyXEL Communications Corporation Equipment Type : HDSL-2 DSU (Data Service Unit) Model : PRESTIGE 760V FCC ID : I88PRESTIGE760V Report No.: 007H001FI QuieTek Corporation Page: 2 of 17 FCC Report No.: 007H001FI Accredited Lab. of NVLAP (NIST) NVLAP Lab. Code: 200347-0 EMC Test Laboratory Rev.1 Test Report Certification QuieTek Corporation No.75-1, Wang-Yeh Valley, Yung-Hsing, Chiung-Lin, Hsin-Chu County, Taiwan, R.O.C. Tel : 886-3-592-8858, Fax: 886-3-592-8859 E-Mail : [email protected] Accredited by NIST(NVLAP), VCCI, BSMI, DNV, TUV Applicant : ZyXEL Communications Corporation Address : No.6, Innovation Rd II, Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Equipment Type : HDSL-2 DSU (Data Service Unit) Model : PRESTIGE 760V FCC ID. : I88PRESTIGE760V Measurement Standard : CISPR 22/1985 Measurement Procedure : ANSI C63.4 /1992 Operation Voltage : 120VAC/60Hz Classification : Class B Test Result : Complied Test Date : July 13, 2000 Report No. : 007H001FI The Test Results relate only to the samples tested. The test report shall not be reproduced except in full without the written approval of QuieTek Corporation. This report must not be used to claim product endorsement by NVLAP any agency of the U.S. Government Documented by: Zoe Lee Test Engineer: Calien Kang Approved: Kevin Wang QuieTek Corporation Page: 3 of 17 FCC Report No.: 007H001FI Accredited Lab. of NVLAP (NIST) NVLAP Lab. Code: 200347-0 EMC Test Laboratory Rev.1 TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION........................................................................................................................................4 1.1 EUT Description................................................................................................................................................................4 1.2 Tested System Details........................................................................................................................................................5 1.3 EUT Configuration............................................................................................................................................................9 1.4 EUT Exercise Software...................................................................................................................................................10 1.5 Test performed.................................................................................................................................................................10 1.6 Test Facility......................................................................................................................................................................11 2. CONDUCTED EMISSION..........................................................................................................................................12 2.1 Test Equipment List.........................................................................................................................................................12 2.2 Test Setup.........................................................................................................................................................................12 2.3 Limits................................................................................................................................................................................12 2.4 Test Procedure..................................................................................................................................................................13 2.5 Test Results......................................................................................................................................................................13 3. RADIATED EMISSION...............................................................................................................................................14 3.1 Test Equipment................................................................................................................................................................14 3.2 Test Setup.........................................................................................................................................................................14 3.3 Limits................................................................................................................................................................................15 3.4 Test Procedure..................................................................................................................................................................15 3.5 Test Results......................................................................................................................................................................15 4. EMI REDUCTION METHOD DURING COMPLIANCE TESTING................................................................16 5. ATTACHMENT.............................................................................................................................................................17 ATTACHMENT 1: SUMMARY OF TEST RESULTS ATTACHMENT 2: EUT TEST PHOTOGRAPHS ATTACHMENT 3: EUT DETAILED PHOTOGRAPHS QuieTek Corporation Page: 4 of 17 FCC Report No.: 007H001FI Accredited Lab. of NVLAP (NIST) NVLAP Lab. Code: 200347-0 EMC Test Laboratory Rev.1 1. General Information 1.1 EUT Description Applicant : ZyXEL Communications Corporation Address : No.6, Innovation Rd II, Science-Based Industrial Park, Hsin-Chu, Taiwan, R.O.C. Equipment Type : HDSL-2 DSU (Data Service Unit) Model : PRESTIGE 760V FCC ID : I88PRESTIGE760V Operation Voltage : 120VAC/60Hz V 3.5 Cable : Non-Shielded, 1.8m, 1pc Telephone Line : Non-Shielded, …

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QuieTek Corporation Page: 1 of 2 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 Attachment 2: EUT Test Setup Photos Front View of Conducted Test Back View of Conducted Test QuieTek Corporation Page: 2 of 2 FCC Report No.: 007H001FI Accredited Lab. of NVLAP(NIST) NVLAP Lab. Code : 200347-0 EMC Test Laboratory Rev.1 Front View of Radiated Test Back View of Radiated Test