TP-LINK (TL-SM321A-2) 1000Base-BX WDM Bi-Directional SFP Module, Up to 2km, DDM, Hot Swappable, Designed for on-site gigabit fiber communication Up to 2 km transmission distance with 9/125 μm SMF (Single-Mode Fiber) Bidirectional WDM communication on a single fiber Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA) Supports Digital Diagnostic Monitoring (DDM) Hot-swappable module design Work with TL-SM321B-2 as a pair
TP-LINK (TL-SM321A-2) 1000Base-BX WDM Bi-Directional SFP Module, Up to 2km, DDM, Hot Swappable, Designed for on-site gigabit fiber communication Up to 2 km transmission distance with 9/125 μm SMF (Single-Mode Fiber) Bidirectional WDM communication on a single fiber Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA) Supports Digital Diagnostic Monitoring (DDM) Hot-swappable module design Work with TL-SM321B-2 as a pair