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通过1550nm直调光发射机和Overlay叠加技术,可以有效解决数字电视升级改造过程中,调频广播信号插入光系统的问题。同时提升网络安全性,降低故障率,保证广播信号正常传输。
Through 1550nm direct-tone transmitter and Overlay superposition technology, can effectively solve the problem of inserting the FM radio signal into the optical system in the process of upgrading and revamping the digital television. At the same time improve network security, reduce the failure rate, to ensure the normal transmission of broadcast signals.