STCEX-5201VDSL Modem

MODEM, Before connecting the cables ƒ ƒ ƒ ƒ VDSL Line DC 5V/2A from Adaptor RJ-11 Cable RJ-45 Cable (To PC’s LAN port) Cable Connection of VX-VEB165 ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance could void the user’s authority to operate the equipment WA R N I N G 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, and (2) this device must accept any interference received, including interference that may cause undesired operation. INFORMATION TO USER: This equipment has been tested and found to comply with the limit of 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 used 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 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 to correct the interference by one or more of the following measures: 1. Reorient / Relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an outlet on a circuit difference from that to which the receiver is connected. 4. Consult the dealer or an experienced radio/TV technician for help

Tellion, Inc. Date: Dec 13, 2007 Compliance Certification Services Certification Division 561F Monterey Road Morgan Hill, CA 95037 To whom it may concern: We, the undersigned, hereby authorize <ESTECH CO.,Ltd.>, to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by <ESTECH CO., Ltd.> on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing <ESTECH CO.,Ltd.> as our agent, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to the us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the Certification Division when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Lee, Yong-Beam / Manager Engineer Tel:82-2-2026-7003 REMARK: 1. This authorization letter will be sent along with your application when filing with the Certification Division. 2. Please follow the format and type it on company letterhead and send original to us.

Tellion, Inc. 8th Fl, Leader's tower 60-15 Gasan-dong, Geumcheon-gu,Seoul,153-801,Korea TEL : +82-2-2026-7003 FAX : +82-2-2026-7100 Federal Communications Commission Authorization and Evaluation Division FCC ID STCEX-5201 Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram 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, disclosure of this Application and all accompanying documentation will not be made before the data of the Grant for this application. Sincerely yours, Lee, Yong-Beam/Manager Manager Tel:82-2-2026-7003 Fax:82-2-2026-7100

1 Lucy Tsai From: 양진모 [[email protected]] Sent: Tuesday, December 18, 2007 5:24 PM To: Lucy Tsai Subject: FW: Tellion, Inc, FCC ID: STCEX5201, Assessment NO.: AN07T7438, Notice#1 Attachments: test report.pdf Dear Lucy, I saw below comment and I send the revised report. Thank you, Yang. From: Lucy Tsai [mailto:[email protected]] Sent: Wednesday, December 19, 2007 10:14 AM To: ??? Subject: FW: Tellion, Inc, FCC ID: STCEX5201, Assessment NO.: AN07T7438, Notice#1 Dear Mr. Yang, Please address following issues. Q#1: Test report and test setup photos show some ferrite cores were clamped to the RJ45, RJ11 cables and power adapter during the test. However, according to user manual, these cables and adapter are included in the packing but none of them ferrite core on. Please issue a modification report by indicating the such ferrite cores will be added to RJ45, RJ11 and DC power cable on every unit sold in the U.S. Best Regards, Lucy

IP-VDSL EX-5201 is Modem providing very high speed Data Service and common Telephone Service to User through residential Telephone Line. IP-VDSL EX-5201 is Modem providing various Multimedia Service such as high seed Internet connection, Internet Broad casting, Remote Diagnosis, Monitoring Conference, VoD etc..

2. Description of EUT 2.1 Summary of Equipment Under Test NONE: Model Number : EX-5201 Serial Number : Manufacturer : Country of origin : Rating : Receipt Date : Frequecy list(s) : 25MHz, 25.33MHz 2.2 General descriptions of EUT 2.3 Added requirement in the manual To meet radiated emission,ferrite cores will be added to RJ45, RJ11 and DC power cable on every unit sold in the U.S Report Number : ESTF150712-010 , Web : www. estech. co. kr Page 4 of 14 VDSL NONE Tellion, Inc KOREA INPUT: 120V 60Hz OUTPUT:DC 5V ,2A 2007-12-04 150 kHz30 MHz 1 PK CLRWR 2 AV CLRWR SGL TDF 6DB dBμV dBμV RBW 9 kHz MT 1 s PREAMP OFFAtt 10 dB AUTO PRN 1 MHz10 MHz 0 10 20 30 40 50 60 70 80 90 LIMIT CHECK PASS 1 Marker 1 [T1 ] 54.54 dBμV 156.000000000 kHz EN55022A EN55022Q Comment: EX-5201_HOT Date: 6.DEC.2007 03:53:36 150 kHz30 MHz 1 PK CLRWR 2 AV CLRWR SGL TDF 6DB dBμV dBμV RBW 9 kHz MT 1 s PREAMP OFFAtt 10 dB AUTO PRN 1 MHz10 MHz 0 10 20 30 40 50 60 70 80 90 LIMIT CHECK PASS EN55022A EN55022Q Comment: EX-5201_NEUTRAL Date: 6.DEC.2007 03:48:12

TEST SETUP PHOTO 1. Conducted Emission setup photo 1.1. Front 1.2. Rear 2. Radiated Emission setup photo 2.1 Front 2.2. Rear