UYYEXTWRS232RWireless RS232 Extender

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March 4, 2010 Compatible Electronics TCB 114 Olinda Drive Brea, CA 92823 Gentlemen: This is a letter of authorization to accept Compatible Electronics, Inc., specifically including the employees of Compatible Electronics, as an Agent for Gefen LLC, 20600 Nordhoff St, Chatsworth, CA 91311, U.S.A., for a period of one year, to sign applications before the Commission on our behalf, to make representations to you on our behalf, and to receive and exchange data between our company and the Commission in connection with certification of the following Gefen product: Wireless RS232 Extender (Gefen p/n: EXT-WRS232) Transmitter / Receiver under FCC Docket Number 20780 and General Docket Number 80-284 pursuant to Part l5 of FCC Rules and Regulations. Please also accept this letter as an attestation that neither Gefen, LLC, nor any of its officers, directors, or persons holding 5% or more of the outstanding stock or shares, voting or non-voting, have been denied federal benefits under section 5301 of the Anti- Drug-Abuse act of 1988,21 U.S.C. 853(a). In addition, Gefen, LLC will notify the Federal Communications Commission if, at any time, the situation changes causing Gefen, LLC to be denied federal benefits. If you have any further questions or need additional information, please feel free to give me a call at 818-772-9100 ext.228. Sincerely, Gaston Santiago Project Manager Gefen, LLC 20600 Nordhoff St. Chatsworth, CA 91311 U.S.A. TEL:(818)772-9100 ext. 228 FAX:(818)772-9120 e-mail: [email protected]

1 May 27, 2010 Compatible Electronics TCB 114 Olinda Drive Brea, California 92823 Subject: TCB application submittal Gentlemen: We, Gefen, LLC, would like to declare that the application being submitted for the device with FCC ID: UYYEXTWRS232R, has not been submitted to another TCB or FCC for certification. If you have any questions, please do not hesitate to contact us at (818) 772-9100 ext.228. Sincerely, Gaston Santiago Project Manager Gefen, LLC 20600 Nordhoff St. Chatsworth, CA 91311 U.S.A. TEL:(818)772-9100 ext. 228 FAX:(818)772-9120 e-mail: [email protected]

ATTESTATION LETTER September 3, 2010 CETCB 114 Olinda Drive Brea, CA 92823 Gentlemen: We, Gefen LLC., would like to formally attest that the device tested, FCC ID: UYYEXTWRS232R, will be manufactured with an RP-SMA connector. Sincerely, 2010-09-03 Gaston Santiago DATE Project Manager Gefen, LLC. 20600 Nordhoff St. Chatsworth, CA 91311 U.S.A. (818) 772-9100 ext. 228 [email protected] 20600 Nordhoff St. Chatsworth, CA 91311 Tel. (818) 772-9100 Fax (818) 772-9120 [email protected]

1 (March 4, 2010) Compatible Electronics TCB 114 Olinda Drive Brea, California 92823 Subject: Request for withholding from public disclosure the schematics, block diagrams, and operational description pursuant to an application for certification Gentlemen: We, Gefen, LLC, would like to request that all schematics, block diagrams, and operational descriptions submitted with the application for certification be withheld from public disclosure as per Section 0.459 of FCC Rules. This request is made under the provisions of Section 0.457 (d) of the Commission’s Rules, and Section 552 (b)(4) of the Freedom of Information Act. These sections authorize the withholding from public inspection, those materials which would be privileged as a matter of law if retained by the person submitting them, and materials which would not customarily be released to the public by that person. If you have any questions, please do not hesitate to contact us at (818) 772-9100 ext.228. Sincerely, Gaston Santiago Project Manager Gefen, LLC 20600 Nordhoff St. Chatsworth, CA 91311 U.S.A. TEL:(818)772-9100 ext. 228 FAX:(818)772-9120 e-mail: [email protected] Note: Normally schematics, detailed block diagrams, and detailed theories of operation are the only information held confidential. Internal photographs are only held confidential in certain circumstances where the access to the information isn’t available to the end user. Test reports, cover letters, external photos, ID labels, setup photos, attestation statements, and RF exposure reports will not be held confidential.

38MM 19.5MM UC610195 IC:9057A-EXTWRS232R P/N: EXT-WRS232R and IC RSS-210

IC:9057A-EXTWRS232S P/N: EXT-WRS232S IC:9057A-EXTWRS232R P/N: EXT-WRS232R and IC RSS-210 and IC RSS-210

Figure 1 (Inside View #1) Figure 2 (Inside View #2) Figure 3 (Top View of the PCB - View #1) Figure 4 (Top View of the PCB - View #2) Figure 5 (Top View of the PCB - Close-up #1) Figure 6 (Top View of the PCB - Close-up #2) Figure 7 (PCB Bottom View) Figure 8 (PCB Bottom View - Close-up #1) Figure 9 (PCB Bottom View - Close-up #2) Figure 10 (Photo of the Connectors)

Report Number: B00423A2 FCC Part 15 Subpart B and FCC Section 15.249 Test Report Wireless RS232 Extender P/N: EXT-WRS232R Brea Division 114 Olinda Drive Brea, CA 92823 (714) 579-0500 Agoura Division 2337 Troutdale Drive Agoura, CA 91301 (818) 597-0600 Silverado Division 19121 El Toro Road Silverado, CA 92676 (949) 589-0700 Lake Forest Division 20621 Pascal Way Lake Forest, CA 92630 (949) 587-0400 Page 1 of 16 FCC PART 15 SUBPART B and C TEST REPORT for WIRELESS RS232 EXTENDER Part Number: EXT-WRS232R Prepared for GEFEN, LLC 20600 NORDHOFF STREET CHATSWORTH, CALIFORNIA 91311 Prepared by:_____________________ KYLE FUJIMOTO Approved by:____________________ JAMES ROSS COMPATIBLE ELECTRONICS INC. 114 OLINDA DRIVE BREA, CALIFORNIA 92823 (714) 579-0500 DATE: AUGUST 5, 2010 REPORT APPENDICES TOTAL BODY A B C D E PAGES 16 2 2 2 14 40 76 This report shall not be reproduced except in full, without the written approval of Compatible Electronics. Report Number: B00423A2 FCC Part 15 Subpart B and FCC Section 15.249 Test Report Wireless RS232 Extender P/N: EXT-WRS232R Brea Division 114 Olinda Drive Brea, CA 92823 (714) 579-0500 Agoura Division 2337 Troutdale Drive Agoura, CA 91301 (818) 597-0600 Silverado Division 19121 El Toro Road Silverado, CA 92676 (949) 589-0700 Lake Forest Division 20621 Pascal Way Lake Forest, CA 92630 (949) 587-0400 Page 2 of 16 TABLE OF CONTENTS Section / Title PAGE GENERAL REPORT SUMMARY 4 SUMMARY OF TEST RESULTS 4 1. PURPOSE 5 2. ADMINISTRATIVE DATA 6 2.1 Location of Testing 6 2.2 Traceability Statement 6 2.3 Cognizant Personnel 6 2.4 Date Test Sample was Received 6 2.5 Disposition of the Test Sample 6 2.6 Abbreviations and Acronyms 6 3. APPLICABLE DOCUMENTS 7 4. DESCRIPTION OF TEST CONFIGURATION 8 4.1 Description of Test Configuration – EMI 8 4.1.1 Cable Construction and Termination 9 5. LISTS OF EUT, ACCESSORIES AND TEST EQUIPMENT 10 5.1 EUT and Accessory List 10 5.2 EMI Test Equipment 11 6. TEST SITE DESCRIPTION 12 6.1 Test Facility Description 12 6.2 EUT Mounting, Bonding and Grounding 12 6.3 Facility Environmental Characteristics 12 7. TEST PROCEDURES 13 7.1 RF Emissions 13 7.1.1 Conducted Emissions Test 13 7.1.2 Radiated Emissions (Spurious and Harmonics) Test 14 8. CONCLUSIONS 16 Report Number: B00423A2 FCC Part 15 Subpart B and FCC Section 15.249 Test Report Wireless RS232 Extender P/N: EXT-WRS232R Brea Division 114 Olinda Drive Brea, CA 92823 (714) 579-0500 Agoura Division 2337 Troutdale Drive Agoura, CA 91301 (818) 597-0600 Silverado Division 19121 El Toro Road Silverado, CA 92676 (949) 589-0700 Lake Forest Division 20621 Pascal Way Lake Forest, CA 92630 (949) 587-0400 Page 3 of 16 LIST OF APPENDICES APPENDIX TITLE A Laboratory Recognitions B Modifications to the EUT C Additional Models Covered Under This Report D Diagram, Charts, and Photos • Test Setup Diagram • Antenna and Amplifier Factors • Radiated Emissions Photos E Data Sheets LIST OF FIGURES FIGURE TITLE 1 Conducted Emissions Test Setup 2 Plot Map And Layout of Radiated Test Site Report Number: B00423A2 FCC Part 15 Subpart B and FCC Section 15.249 Test Report Wireless RS232 Extender P/N: EXT-WRS232R Brea Division 114 Olinda Drive Brea, CA 92823 (714) 579-0500 Agoura Division 2337 Troutdale Drive Agoura, CA 91301 (818) 597-0600 Silverado Division 19121 El Toro Road Silverado, CA 92676 (949) 589-0700 Lake Forest Division 20621 Pascal Way Lake Forest, CA 92630 (949) 587-0400 Page 4 of 16 GENERAL REPORT SUMMARY Compatible Electronics Inc. generates this electromagnetic emission test report, which is an independent testing and consulting firm. The test report is based on testing performed by Compatible Electronics personnel according to the measurement procedures described in the test specifications given below and in the "Test Procedures" section of this report. The measurement data and conclusions appearing herein relate only to the sample tested and this report may not be reproduced without the written permission of Compatible Electronics, unless done so in full. This report must not be used to claim product endorsement by NVLAP, NIST or any other agency of the U.S. Government. Device Tested: Gefen, LLC P/N: EXT-WRS232R S/N: N/A Product Description: See Expository Statement Modifications: The EUT was not modified in order to meet the specifications. Customer: Gefen, LLC 20600 Nordhoff Street Chatsworth, California 91311 Test Date(s): April 20, 21, and 23, 2010 Test Specifications: EMI requirements CFR Title 47, Part 15, Subpart B; and Subpart C sections, 15.205, 15.207, 15.209, and 15.249 Test Procedure: ANSI C63.4 Test Deviations: The test procedure was not deviated from during the testing. SUMMARY OF TEST RESULTS TEST DESCRIPTION RESULTS 1 Conducted RF Emissions 150 kHz to 30 MHz Complies with the Class B limits of CFR Title 47, Part 15, Subpart B; and Subpart C, section 15.207. Highest reading in relation to spec limit: 39.23 dBuV @ 0.637 MHz (*U = 1.68 dB) 2 Radiated RF Emissions 10 kHz – 25000 MHz (Transmitter, Receive, and Digital Portion) Complies with the Class B limits of CFR Title 47, Part 15, Subpart B; and Subpart C, sections 15.205, 15.209, and 15.249. Highest reading in relation to spec limit: 44.94 (QP) dBuV @ 602.349 MHz (*U = 5.13 dB) *U = Expanded Uncertainty with a coverage factor of k=2 Report Number: B00423A2 FCC Part 15 Subpart B and FCC Section 15.249 Test Report Wireless RS232 Extender P/N: EXT-WRS232R Brea Division 114 Olinda Drive Brea, CA 92823 (714) 579-0500 Agoura Division 2337 Troutdale Drive Agoura, CA 91301 (818) 597-0600 Silverado Division 19121 El Toro Road Silverado, CA 92676 (949) 589-0700 Lake Forest Division 20621 Pascal Way Lake Forest, CA 92630 (949) 587-0400 Page 5 of 16 1. PURPOSE This document is a qualification test report based on the Electromagnetic Interference (EMI) tests performed on the Wireless RS232 Extender, P/N: EXT-WRS232R. The EMI measurements were performed according to the measurement procedure described in ANSI C63.4. The tests were performed in orde…

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Ref Lvl 112 dB
V Ref Lvl 112 dB
V RBW 1 MHz VBW 1 MHz RF Att 20 dB A IN1 Unit dB
V P0 TDS SWT 500
s Center 2.44193988 GHz50
s/ 1VIEW1MA 20 30 40 50 60 70 80 90 100 12 112 1 1 Delta 1 [T1] 3.97 dB 173.346693
s 1 [T1] 41.02 dB
V 83.166333
s 1 [T1] 3.97 dB 173.346693
s D1 81.3 dB
V Date: 21.APR.2010 14:40:17 Time of One Pulse = 173.346693 uS Ref Lvl 112 dB
V Ref Lvl 112 dB
V RBW 1 MHz VBW 1 MHz RF Att 20 dB A IN1 Unit dB
VSWT 5 ms Center 2.44193988 GHz500
s/ P0 TDS 1VIEW1AP 20 30 40 50 60 70 80 90 100 12 112 1 1 Delta 1 [T1] 2.94 dB 1.012024 ms 1 [T1] 40.35 dB
V 1.292585 ms 1 [T1] 2.94 dB 1.012024 ms D1 81.3 dB
V Date: 21.APR.2010 14:38:44 Time of One Pulse Train = 1.012024 mS Total Duty Cycle = 173.346693 uS / 1.012024 mS = 17.13% Duty Cycle

HOW THE EUT MEETS THE REQUIREMENTS OF 15.31 (e) FOR THE GEFEN, LLC WIRELESS RS232 EXTENDER P/N: EXT-WRS232R The fundamental was maximized on the Lab D test site using a normal test setup with the EUT connected directly to the AC public mains (115 Vac). Next, the EUT was then connected to the Staco Energy Products Variable Auto Transformer Model: 3PN1010. The Variable Auto Transformer allows the Vac input to be varied. The AC input was then dropped to 85% (97.75 Vac) and raised to 115% (132.25 Vac). The actual AC input was measured using a calibrated Fluke Multimeter Model: 87, Serial Number: 956410240, Calibration Due Date: May 28, 2010. The fundamental of the EUT was then verified again to see that the amplitude did not change. Test Result: The EUT does NOT change amplitude at the fundamental when the AC input voltage is varied between 85% and 115% of the input nominal rated supply voltage. Test Result: The EUT does NOT change amplitude at the fundamental when the AC input voltage of the computer is varied between 85% and 115% of the input nominal rated supply voltage.