1000Base WDM SFP Fiber Modules – 60 km



The Signamax 065-79LX6WDMx1550 series models are Small Form-factor Pluggable (SFP) multimode fiber modules that support Gigabit Ethernet or SONET OC-12 over a single strand of singlemode fiber cable at distances up to 60 kilometers. There are two types of models in this series: one transmits at 1310 nm and receives at 1550 nm (model 065-79LXnWDMA1550), and the other transmits at 1550 nm and receives at 1310 nm (model 065-79LXnWDMB1550). These modules are designed to be used in pairs facing each other across a single stand of singlemode fiber.  They are a cost-effective method of providing changeable Gigabit Ethernet or SONET OC-12 single-fiber singlemode interfaces to switches and media converters equipped with a standard SFP port.



  • RoHS compliant
  • Meets the SFP Multi-Source Agreement (MSA)
  • Up to 60 Km link distance
  • Hot pluggable
  • Metal enclosure for low EMI performance
  • Low power dissipation



  • Metro Access Rings
  • Point-to-Point networking
  • 1x Fiber Channel
  • Gigabit Ethernet
  • Suitable for Fast Ethernet and OC-12 transmission



Part Number TX/RX
Link Power
Typical Max. Distance** Supply
(Blue clasp)
Tx: 1310nm
Rx: 1550nm
DFP Laser 24 dBm 60 km 3.3V 0 ~ 70 °C
(Green clasp)
Tx: 1550nm
Rx: 1310nm
DFB Laser 24 dBm 60 km 3.3V 0 ~ 70 °C

** Maximum distances attainable on singlemode fiber circuits are dependent upon a circuit’s conditions; i.e., the number of splices and patch panels and the number of bends in the circuit path. For comparison with competing products, please use the Link Power Budget for meaningful comparisons.


Download Specifications (PDF 599 Kb) Revised 10.20.2011



Part NumberDescriptionAdd to [?] 
065-79LX6WDMA1550WDM 1.25 Gbps SFP Module Tx: 1310 nm / Rx: 1550 nm - SM/LC Simplex, 60 km


065-79LX6WDMB1550WDM 1.25 Gbps SFP Module Tx: 1550 nm / Rx: 1310 nm - SM/LC Simplex, 60 km