Simplex SFP Mode 1550nm 80km DFB SMF 622Mb/s SFP 1550nm 80km Optical Transceiver Module HTSF-S6M55Zx
Cisco SM Compatible 1000BASE-ZX SFP 1550nm 80km Transceiver Module
A 10 dB optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP at each end of the link whenever the fiber-optic cable span loss is less than 8 dB.
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