OJFDLRUG225Digital Low-power Remote Unit High Band Supporting 2.5G

Corning Optical Communications Everon™ 6000 Gen 2 DAS Solution Specification Sheet | CMA-818-AEN Corning Restricted Everon ™ 6000 Gen 2 DAS Solution Specification Sheet Features and Benefits Corning’s Everon 6000 Gen 2 DAS Solution is an advanced inbuilding cellular service solution for small, medium, and large size venues, supporting a broad range of cellular generations: 3G,4G and 5G. This solution is based on a point-to-multipoint distribution architecture, advanced digital transport and processing, and channelized implementation, enabling efficient utilization of digital links. It is designed to support multi-band, multi- technology, and multi-operator networks over the single fiber-based infrastructure. The Corning Everon™ 6000 Gen 2 DAS Solution is a high bandwidth distribution architecture that provides preparedness for future radio technologies, broader spectrum, and new frequency bands. Due to its modular design and configuration flexibility, this solution is highly scalable in terms of supported capacity (number of sectors, frequency bands, channels) and remote units (coverage), and can be easily configured to support a large variety of deployment scenarios including single and multi-building (“campus”) network topologies. This solution offers multiple types of digital remote units, supporting a variety of frequency band combinations, with different power levels ranging from 20 dBm per band to 46 dBm per band. Advanced network configuration and management capabilities enable on-site as well as remote end-to-end configuration, system diagnostics, maintenance, and support network operations center (NOC) connectivity. Features Benefits Comprehensive Service Support 600 MHz, 700 MHz, FirstNet, 800/850 MHz, 1900 MHz (PCS), EAWS, 2300 MHz (WCS), 2500 MHz (TDD), 3500 MHz (TDD). Support of MIMO services, FDD and TDD. Supports 3G, 4G, 5G technologies. Multi-X System Supports multi-operator, multi-band, multi-technology services over a single infrastructure. Supports single and multi-building (“campus”) network solutions. Highly Modular/Highly Scalable Can be easily expanded to support additional capacity: sectors, frequency bands, channels, and coverage areas, by increasing the number of remotes. Advanced Digital Signal Processing Provides higher dynamic range, enables per-channel granularity, delivers enhanced overall power efficiency, and improves overall system performance. Digital Common Public Radio Interface (CPRI) based Transport Provides robust signal distribution with flexible scalability. Digital Service and Capacity Routing Enables advanced capacity and coverage management through flexible routing configuration management. Carrier-Grade Network Management Network configuration and management capabilities enable on-site and remote end-to-end configuration, system diagnostics, maintenance, support management and control by network management system. Corning Optical Communications Everon™ 6000 Gen 2 DAS Solution Specification Sheet | CMA-818-AEN Corning Restricted System Architecture: Everon™ 6000 Gen 2 Solution RIU—Radio Interface Unit The RIU provides an interface and signal conditioning to signals coupled between the base station RF antenna ports and the DCU. DCU—Digital Conversion Unit The DCU provides RF to CPRI (Downlink) and CPRI to RF (Uplink) conversion, where the well-known CPRI (Common Public Radio Interface) standard is used for representing the RF signals. DEU– Distributed Extension Unit The DEU is the central Hub and Distribution element for the Everon™ 6000 Gen 2 Solution. The DEU interfaces between the DCU and the remote unit, allowing it to receive the operators service signals in CPRI format, and to route these signals to the remote antenna units. The DEU supports all Corning digital remote antenna units’ flavors, for all services, power levels and antenna configurations (SISO or MIMO). Each DEU includes 2 optical ports connected to a DCU, 2 optical ports for cascade, and 24 optical ports for connection to remote units. When more remote antenna units are needed, the system scales up easily by adding additional DEUs. Service Provider #N A RIU A DCU A DEU Base stations Digital Conversion Units Radio Interface Units Distributed Extension Units A DHRU A DLRU A DMRU Medium Power Remote Units High Power Remote Units Remote Operator Configuration and NMS Local Configuration Low Power Remote Units Corning Optical Communications Everon™ 6000 Gen 2 DAS Solution Specification Sheet | CMA-818-AEN Corning Restricted dLRU—Digital Low-power Remote Unit The dLRU is a low-power remote antenna unit with 20~24 dBm per MIMO stream per band output RF power and native support of 2x2 MIMO antenna scheme. There are four types of dLRU: 1.Low band dLRU - supports 600 MHz (band 71), 700 MHz Low (band 12), 700 MHz High (band 13), FirstNet (band 14), 800/850 MHz (band 26) bands via one fiber connection. 2.Medium Band dLRU - supports EAWS (band 66), PCS (band 25), WCS (band 30) and 2.5 GHz TDD (band 41) services via 3 fiber connections. 3.Band 41 dLRU - supports single band 2.5 GHz TDD via single fiber. 4.High Band dLRU - supports 3500 MHz TDD (CBRS/C-Band) services via 2 fiber connections. The dLRU cooling is natural convection with no fans. Due to its IP66 enclosure design the dLRU can also be installed outdoors. dMRU—Digital Medium-power Remote Unit The dMRU is a medium-power remote antenna unit with 37~40 dBm per MIMO stream per band output RF power and native support of 2x2 MIMO antenna scheme. The dMRU cooling is based on natural convection, requiring no fans. Due to its IP65 enclosure design, the dMRU can also be installed outdoors. dHRU—Digital High-power Remote Unit The dHRU is a high-power modular remote antenna unit which provides 43~46 dBm output RF power per service module, and native support of 2x2 MIMO antenna scheme. The dHRU modular structure enables set ups of up to 8 service modules in 600 MHz, 700 MHz Low/700 MHz High/FirstNet, 800/850 MHz, EAWS, PCS, WCS, 2.5 GHz TDD an…

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Corning Optical Communication LLC Attestation To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: Corning Optical Communication LLC 6 Concord Road, Shrewsbury, Massachusetts, 01545, United States For FCC ID:OJFDLRUG225; Model number: dLRU-G2-25 We Corning Optical Communication LLC declare that warning label messages will be also shown in online and point-of-sale marketing marterials and on outside packaging of device. WARNING! This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC License to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. Name (Printed): Jyotin Basrur Title:Senior Director, Product Line Management Signature: On behalf of Company: Corning Optical Communication LLC

Corning Optical Communication LLC Corning Restricted Authority letter FCC Date: 8/18/2022 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: OJFDLRUG225 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch and Kobe Jian in SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent 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). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Corning Optical Communication LLC. This authorization is valid until further written notice from the applicant. Name (Printed): Jyotin Basrur Title: Senior Director, Product Line Management Signature: On behalf of Company: Corning Optical Communication LLC

Corning Optical Communication LLC Corning Restricted Confidential letter FCC To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: Corning Optical Communication LLC 6 Concord Road Shrewsbury, Massachusetts, 01545, United States Regarding: Confidentiality Request regarding application for FCC ID: OJFDLRUG225 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions Tune-up procedure The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Name (Printed): Jyotin Basrur Title: Senior Director, Product Line Management Signature: On behalf of Company: Corning Optical Communication LLC

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Declaration Corning Restricted Applicant Declaration Letter Applicant Legal Business Name Corning Optical Communication LLC Address 6 Concord RoadShrewsbury, 01545, Massachusetts, United States Grantee Code OJF FCC ID OJFDLRUG225 Authorized Contact Name Jyotin Basrur Contact Email [email protected] Contact Phone 817-431-7894 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is 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. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Applicant Signature: Date: 8/18/2022 Print Name: Jyotin Basrur Title: Senior Director, Product Line Management *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database Applicant Declaration Rev:0.0

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 1 of 5 FCC ID: OJFDLRUG225 Appendix External Photos for GZCR2208001013AT Test Model No.: dLRU-G2-25 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 2 of 5 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 3 of 5 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 4 of 5 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 5 of 5 - End of the Appendix -

dLRU-G2-25 FCC warning label Product label Package label

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 1 of 3 FCC ID: OJFDLRUG225 Appendix Internal Photos for GZCR2208001013AT Test Model No.: dLRU-G2-25 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 2 of 3 EUT Constructional Details (EUT Photos) SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-01 Rev 1.0 Page: 3 of 3 - End of the Appendix -

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 1 of 9 FCC ID: OJFDLRUG225 Kobe Jian EMC Laboratory Manager RF EXPOSURE EVALUATION REPORT Application No.: GZCR2208001013AT Applicant: Corning Optical Communication LLC Address of Applicant: 6 Concord Road, Shrewsbury, MA 01545 United States Manufacturer: Comba Network System Company Limited Address of Manufacturer: No.10 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangdong Factory: Comba Telecom Technology (Guangzhou) Ltd. Address of Factory: No.6 Jinbi Road, Economics and Technology Development District, Guangdong, China Equipment Under Test (EUT): EUT Name: Digital Low-power Remote Unit High Band Supporting 2.5G Model No.: dLRU-G2-25 Standard(s) : 47 CFR Part 2.1091 47 CFR Part 1.1310, Part 1.1307 Date of Receipt: 2022-08-05 Date of Evaluation: 2022-08-18 Date of Issue: 2022-08-19 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 2 of 9 Revision Record VersionChapterDateModifier Remark 01GZCR2208001013032022-08-19Original Authorized for issue by: Kevin Zhang /Project Engineer Jerry Chan /Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 3 of 9 2Evaluation Summary Radio Spectrum Technical Requirement ItemStandardRequirementMethodResult RF Exposure 47 CFR Part 2.1091 47 CFR Part 1.1310 47 CFR Part 1.1307 47 CFR Part 1.131047 CFR Part 1.1310PASS SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 4 of 9 3Contents Page 1 Covers Page................................................................................................................................................1 2Evaluation Summary..................................................................................................................................3 3Contents......................................................................................................................................................4 4General Information....................................................................................................................................5 4.1Details of E.U.T...............................................................................................................................................5 4.2Evaluated Location........................................................................................................................................5 4.3Test Facility......................................................................................................................................................6 4.4Deviation from Standards............................................................................................................................6 4.5Abnormalities from Standard Conditions................................................................................................6 5Radio Spectrum Technical Requirement..................................................................................................7 5.1RF Exposure....................................................................................................................................................7 5.1.1Requirement.................................................................................................................................................7 5.1.2Method...........................................................................................................................................................8 5.1.3Conclusion....................................................................................................................................................8 5.2EUT Constructional Details (EUT Photos)...............................................................................................9 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 5 of 9 4General Information 4.1Details of E.U.T. Power Supply:DC 38-58V Cable:N/A Operating Temperature:-40 to +55 °C Operating Humidity:≤95% Frequency Range: Uplink: 2496-2690MHz Downlink: 2496-2690MHz GSM WCDMA LTE Support Technology: 5G NR Modulation Type:PSK/QPSK/QAM/16QAM/64QAM/256QAM LTE10MHz/20MHz Support Channel Bandwidth: 5G NR10MHz/20MHz/40MHz/60MHz/80MHz/100MHz CPRI Port2 (SFP+) Antenna Port2 (4.3-10-Female, ANT1~ANT2) Power Jack1 Interface: Debug Port1 (RJ45) Normal Output Power:Maximum 24dBm (only downlink, per antenna port) Maximum System Gain:Uplink: 0dB Downlink: 0dB EUT Configuration:2T2R (2X2 MIMO, the internal circuit designs and the intend output power for each antenna port are identical, declared by the manufacturer) Antenna Type: External Dedicated Antenna Permission Antenna Gain: 5dBi or less (declared by the manufacturer) Firmware Version: DLRUG2_V01.00.01.23 4.2Evaluated Location All evaluation were performed at: SGS-CSTC Standards Technical Services Co., Ltd., Guangzhou Branch EMC Laboratory, 198 Kezhu Road, Scientech Park, Guangzhou Economic & Technology Development District, Guangzhou, China 510663 Tel: +86 20 82155555Fax: +86 20 82075059 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-03 Rev 1.1 Report No.: GZCR220800101303 Page: 6 of 9 4.3Test Facility The test facility is recognized, certified, or accredited by the following organizations: ● NVLAP (Lab Code: 200611-0) SGS-CSTC Standards Technical Services Co., Ltd., Guangzhou EMC Laboratory is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP/NIST). NVLAP Code: 200611-0. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any ag…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 1 of 29 FCC ID: OJFDLRUG225 Appendix Test Data and Result for report GZCR220800101302 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 2 of 29 1 Out-of-band rejection Out-of-band rejection Downlink The peak of the frequency response f0 is 2575.5MHz. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 3 of 29 2 Input versus Output comparison Occupied Bandwidth Test Path Test Signal Test Channel Signal Level 99% OBW (MHz) Verdict Input Output Downlink AWGN MCH Pre-AGC 4.0985 4.1018 PASS 3dB above AGC 4.0986 4.0998 PASS GSM MCH Pre-AGC 0.24413 0.24613 PASS 3dB above AGC 0.24363 0.24645 PASS SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 4 of 29 99% OBW Downlink_AWGN_MCH_Input_Pre-AGC Downlink_AWGN_MCH_Input_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 5 of 29 99% OBW Downlink_AWGN_MCH_Output_Pre-AGC Downlink_AWGN_MCH_Output_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 6 of 29 99% OBW Downlink_GSM_MCH_Input_Pre-AGC Downlink_GSM_MCH_Input_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 7 of 29 99% OBW Downlink_GSM_MCH_Output_Pre-AGC Downlink_GSM_MCH_Output_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 8 of 29 3 Mean output power and amplifier/booster gain Mean output power and gain Test Path Test Freq. f0 (MHz) Test Signal Signal Level Input power (dBm) Output Power (dBm) Gain (dB) Verdict Downlink 2575.5 AWGN Pre-AGC 25.00 24.94 -0.06 PASS 3dB above AGC 28.00 24.68 / PASS GSM Pre-AGC 25.00 24.39 -0.61 PASS 3dB above AGC 28.00 24.50 / PASS Remark: 1. f0 is from Out-of-band Rejection test in the report. 2. EIRP= output power (dBm)+ antenna gain (dBi), the antenna gain is 5dBi declared by the manufacturer, the directional gain = G ANT + 10 log (N ANT ) dBi = 8dBi. 3. The maximum total EIRP for the EUT is (24.94dBm + 24.94dBm) + 8dBi = 35.96dBm = 3.95W, which doesn’t exceed the required EIRP limit. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 9 of 29 4 Out-of-band/out-of-block(including intermodulation) emissions Out-of-band/out-of-block(including intermodulation) emissions Test Path Test Channel Test Signal Stimulus Condition Signal Level Worst conducted test level (dBm) Limit (dBm) Verdict Downlink LCH AWGN a single test signal Pre-AGC -43.00 ≤-16 PASS 3dB above AGC -42.51 PASS two adjacent test signals Pre-AGC -45.19 PASS 3dB above AGC -44.75 PASS HCH a single test signal Pre-AGC -42.22 PASS 3dB above AGC -41.36 PASS two adjacent test signals Pre-AGC -45.49 PASS 3dB above AGC -44.53 PASS LCH GSM a single test signal Pre-AGC -29.07 PASS 3dB above AGC -28.57 PASS two adjacent test signals Pre-AGC -25.43 PASS 3dB above AGC -27.40 PASS HCH a single test signal Pre-AGC -30.06 PASS 3dB above AGC -29.22 PASS two adjacent test signals Pre-AGC -22.14 PASS 3dB above AGC -23.33 PASS Remark: 1. The power of any emission outside a licensee’s frequency block shall be attenuated below the transmitter power (P) in watts by at least 43 + 10log10 (P) dB, here, P = 24dBm = 0.252W, so the limit = 24dBm – [43 + 10 log10 (0.252W)] dB = -13dBm 2. For 2×2 MIMO, one of ANT ports was measured and the limit shall be reduced by 10lg(2), so the limit was calculated to show -16dBm in order to determine the test result conveniently. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 10 of 29 Out-of-band/out-of-block emissions Downlink_AWGN_LCH_a single test signal_Pre-AGC Downlink_AWGN_LCH_a single test signal_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 11 of 29 Out-of-band/out-of-block emissions Downlink_AWGN_LCH_two adjacent test signals_Pre-AGC Downlink_AWGN_LCH_two adjacent test signals _3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 12 of 29 Out-of-band/out-of-block emissions Downlink_AWGN_HCH_a single test signal_Pre-AGC Downlink_AWGN_HCH_a single test signal_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 13 of 29 Out-of-band/out-of-block emissions Downlink_AWGN_HCH_two adjacent test signals_Pre-AGC Downlink_AWGN_HCH_two adjacent test signals _3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 14 of 29 Out-of-band/out-of-block emissions Downlink_GSM_LCH_a single test signal_Pre-AGC Downlink_GSM_LCH_a single test signal_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 15 of 29 Out-of-band/out-of-block emissions Downlink_GSM_LCH_two adjacent test signals_Pre-AGC Downlink_GSM_LCH_two adjacent test signals _3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 16 of 29 Out-of-band/out-of-block emissions Downlink_GSM_HCH_a single test signal_Pre-AGC Downlink_GSM_HCH_a single test signal_3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 17 of 29 Out-of-band/out-of-block emissions Downlink_GSM_HCH_two adjacent test signals_Pre-AGC Downlink_GSM_HCH_two adjacent test signals _3dB above AGC SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch Page: 18 of 29 5 Conducted Spurious emissions Conducted spurious emissions Test Path Test Channel Test Signal Signal Level Frequency range (MHz) Worst test level (dBm) Limit (dBm) Verdict Downlink LCH AWGN Pre-AGC 30-1000 -58.43 ≤-16 PASS 1000-2495 -32.25 PASS 2691-27000 -42.28 PASS GSM Pre-AGC 30-1000 -58.82 PASS 1000-2495 -22.87 PASS 2691-27000 -42.42 PASS MCH AWGN Pre-AGC 30-1000 -58.03 PASS 1000-2495 -42.21 PASS 2691-27000 -42.42 PASS GSM Pre-AGC 30-1000 -58.43 PASS 1000-2495 -42.93 PASS 2691-27000 -42.41 PASS HCH AWGN Pre-AGC 30-1000 -59.37 PASS 1000-2495 -44.51 PASS 2691-27000 -30.16 PASS GSM Pre-AGC 30-1000 -58.50 PASS 1000-2495 -42.72 PASS 2691-27000 -24.68 PASS Remark: 1. The power of any…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220800101302 Page: 1 of 27 FCC ID: OJFDLRUG225 Kobe Jian EMC Laboratory Manager TEST REPORT Application No.: GZCR2208001013AT Applicant: Corning Optical Communication LLC Address of Applicant: 6 Concord Road, Shrewsbury, MA 01545 United States Manufacturer: Comba Network System Company Limited Address of Manufacturer: No.10 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangdong Factory: Comba Telecom Technology (Guangzhou) Ltd. Address of Factory: No.6 Jinbi Road, Economics and Technology Development District, Guangdong, China Equipment Under Test (EUT): EUT Name: Digital Low-power Remote Unit High Band Supporting 2.5G Model No.: dLRU-G2-25 Standard(s) : 47 CFR Part 2 47 CFR Part 20 47 CFR Part 27 Date of Receipt: 2022-08-05 Date of Test: 2022-08-08 to 2022-08-16 Date of Issue: 2022-08-19 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220800101302 Page: 2 of 27 Revision Record VersionChapterDateRemark 01GZCR2208001013022022-08-19Original Authorized for issue by: Kevin Zhang /Project Engineer Jerry Chan /Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220800101302 Page: 3 of 27 2Test Summary ItemStandardMethodRequirementResult Out-of-band rejection KDB935210 D05 v01r04 KDB935210 D05 v01r04 clause 3.3 KDB935210 D05 v01r04 clause 3.3 Pass Input-versus-output signal comparison 47 CFR Part 2 KDB935210 D05 v01r04 clause 3.4 Part 2.1049Pass Mean output power and amplifier/booster gain KDB935210 D05 v01r04 clause 3.5 Part 27.50(h)Pass Out-of-band/out-of- block(including intermodulation) emissions KDB935210 D05 v01r04 clause 3.6 Part 27.53(m)Pass Conducted spurious esmissions KDB935210 D05 v01r04 clause 3.6 Part 27.53(m)Pass Frequency stability 47 CFR Part 2.1055 KDB935210 D05 v01r04 clause 3.7 ANSI C63.26-2015 Clause 5.6 Part 27.54Pass Radiated spurious emissions 47 CFR Part 27 KDB935210 D05 v01r04 clause 3.8 ANSI C63.26-2015 Clause 5.5 Part 27.53(m)Pass The EUT is a low-power remote antenna unit of fiber DAS. It receives base-station downlink via fiber-optic or coaxial cable from host unit, transmits via antenna to handset, and returns handset uplink via fiber-optic or coaxial cable to host unit. The host unit connects directly to a base station via coaxial cable but cannot connect to antenna. Therefore, no need to implement uplink test. Note: E.U.T./ EUT means Equipment Under Test Pass means the test result passed the test standard requirement, please find the detailed decision rule in the report relative section. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR220800101302 Page: 4 of 27 3Contents Page 1 Covers Page................................................................................................................................................1 2Test Summary.............................................................................................................................................3 3Contents......................................................................................................................................................4 4General Information....................................................................................................................................6 4.1Details of EUT..................................................................................................................................................6 4.2Description of Support Units.......................................................................................................................7 4.3Test Environment...........................................................................................................................................7 4.4Test Signals and Channel..........................................................................…

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