xStack® DGS-3420 Series Layer 2+ Managed Stackable Gigabit Switch Hardware Installation Reference Guide
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Installing SFP and SFP+ Ports
The Switch is equipped with SFP (Small Form Factor Portable) and SFP+ ports, which are used with fiber-optical
transceiver cabling.SFP ports support full-duplex transmissions, auto-negotiation, and can be uplinked with various
other switches across a gigabit network. The SFP ports support data rates of up to 1Gbit/s and the SFP+ ports
support data rates of up to 10Gbit/s.
See the figure below for installing the SFP ports in the Switch.
Figure 2–4 Inserting fiber-optic transceivers into a DGS-3420 Series Switch
The following list of transceivers is supported with SFP ports:
• DEM-310GT (1000BASE-LX, Single-mode, 10km)
• DEM-311GT (1000BASE-SX, Mutli-mode, 500m)
• DEM-312GT2 (1000BASE-SX, Multi-mode, 2km)
• DEM-314GT (1000BASE-LX, Single-mode, 50km)
• DEM-315GT (1000BASE-LX, Single-mode, 80km)
• DGS-712 (1000BASE-TX)
• DEM-330T/R (1000BASE-BX, WDM transceiver, Single-Mode 10km)
• DEM-331T/R (1000BASE-BX, WDM transceiver, Single-Mode 40km)
• DEM-210 (100BASE-FX, Multi-mode, 2km,)
• DEM-211 (100BASE-FX, Single-mode, 15km,
• DEM-220T (100BASE-BX, Wavelength Tx:1550nm, Rx:1310nm, Single-mode, 20km)
• DEM-220R (100BASE-BX, Wavelength Tx:1310nm, Rx:1550nm, Single-mode, 20km)
The following list of tranceivers or cables is supported in the SFP+ ports:
• DEM-431XT-DD:10GBASE-SR SFP+ Transceiver (with DDM) 80m: OM1 & OM2 MMF 300m: OM3 MMF
• DEM-432XT-DD:10GBASE-LR SFP+ Transceiver 10km (with DDM)
• DEM-433XT-DD:10GBASE-ER SFP+ Transceiver 40km (with DDM)
• DEM-435XT-DD:10GBASE-LRM SFP+ Transceiver (with DDM) 220m: OM1 & OM2 MMF, 300m: OM3 MMF
• DEM-310GT (1000BASE-LX, Single-mode, 10km)
• DEM-311GT (1000BASE-SX, Mutli-mode, 500m)
• DEM-312GT2 (1000BASE-SX, Multi-mode, 2km)
• DEM-314GT (1000BASE-LX, Single-mode, 50km)
• DEM-315GT (1000BASE-LX, Single-mode, 80km)
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