This standard specifies the technical requirements and measurement methods for analog fiber amplifiers in cable television systems. Any equivalent measurement method that can ensure the same measurement uncertainty can also be used. In case of dispute, this standard shall prevail. This standard applies to analog fiber amplifiers and optical link systems composed of them in cable television systems. 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T11318.1-1996 Equipment and Components for Cable Distribution Systems for Television and Sound Signals - Part 1: General Specification GB/T 16849-1997 General Specification for Fiber Amplifiers GY/T 143-2000 Technical Conditions and Measurement Methods for Network Access of Amplitude Modulation Laser Transmitters and Receivers in Cable Television Systems lEC 61280 (1998) Basic Test Procedures for Fiber Optic Communication Subsystems lEC 61290 (1998) Basic Specification for Test Methods for Fiber Amplifiers lEC 61825-1 (2001) Laser Product Safety Equipment classification, requirements, and user guide IEC61825-5- Laser product safety, equipment classification, requirements, and user guide - Part 5: Safety of fiber optic communication systems [Dl S76 (CO) 25]
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China