which have high requirements for optical and circuit design. When choosing an optical module manufacturer, we must not be sloppy, so how should we choose a suitable optical module manufacturer?

　　1. Quality management system and certification qualification.

　　Manufacturers need to have ISO9001 quality management system and CE, ROHS, FCC certification qualifications.

　　2. A full set of testing equipment.

　　Manufacturers need to have a full set of test equipment. Common equipment includes optical attenuators, optical power meters, bit error meters, eye diagram meters, brand switches, etc.

　　3. Systematic testing process

　　Good quality optical modules will undergo product appearance inspection, parameter inspection, compatibility and connectivity inspection, and optical end face cleaning before shipment. However, not all third-party optical module suppliers have complete testing equipment, so it is best to choose an optical module supplier that can provide factory inspection reports or that the optical modules have been tested in real machines/simulated scenarios.

　　4. Module warranty time

　　The normal service life of an optical module is 3-5 years.

　　5. Perfect warehousing system

　　Compatible optical module suppliers with a large stock of stock and a complete warehouse system represent their ability to respond quickly, can deliver goods in time, and quickly respond to customer needs in different regions.

　　6. Service capability

　　The services of compatible optical module manufacturers are mainly reflected in product services, technical support, inventory support and pre-sales and after-sales services.

　　7. Technical support

　　For some small enterprises, campuses and units, due to the lack of network administrator skills, it is impossible to solve network planning and design and network deployment technical problems. If a compatible optical module supplier has a professional technical team, they can provide technical support, tailor-made network deployment solutions for customers, and effectively and quickly solve technical problems in network deployment. Such a compatible optical module supplier is definitely the best choice.