D-Link DEM-330R Leaflet

TRANSCEIVER

Bidirectional SFP Gigabit Fiber Transceivers

The DEM-330T/330R and DEM-331T/331R Bidirectional Gigabit SFP Fiber Transceivers are external transceivers 

designed for insertion in SFP (Small Form-Factor Pluggable) slots of network devices for transmission and 

reception of data signals on the fiber cables. These transceivers provide the Gigabit operation and physical 

compactness to deliver the speed, reliable long-distance data transfer, and deployment flexibility that today’s 

fiber networks require.

The DEM-330T/330R and DEM-331T/331R transceivers can be used to connect together switches, servers 

and fiber modules on a campus or metropolitan area network (MAN). Providing up to 10 km (DEM-330T/330R) 

or  40  km  (DEM-331T/331R)  of  fiber  cable  distance,  these  highly  integrated  transceivers  offer  low  jitter 

performance for extended optical link support without any degradation in performance.

The DEM-330T/330R and DEM-331T/331R transceivers combine transmitting and receiving signals onto one 

fiber strand using two wavelengths. These transceivers are used in pair. At one end, one transceiver uses 

one wavelength to transmit and a second wavelength to receive. At the other end, the other transceiver flips 

that relationship.

The DEM-330T/330R and DEM-331T/331R transceivers use standard simplex LC connectors for fiber cable 

connection. They conform to industry standards and are interoperable with D-Link Gigabit switches. Hot-

swap capability allows network administrators to plug or unplug them from the SFP slots without having to 

turn off the power of the connected device.

The DEM-330T/330R and DEM-331T/331R transceivers are packed in a Small Form Pluggable (SFP) metal 

housing to increase durability. 

DEM-330T/330R & DEM-331T/331R

   

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Compliant with IEEE 802.3z Gigabit 

Standard

   

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Self-contained in Standard Small Form 

Pluggable (SFP) Package

 Simplex LC Connector

 

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 Interoperable with D-Link Switches

 

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  Maximum 10 km Fiber Cable Distance 

 

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(DEM-330T/330R)

  Maximum 40 km Fiber Cable Distance 

 

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(DEM-331T/331R)

 Use Single-mode Fiber Cable

 

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  Use Single Fiber Strand for 

 

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Transmission/Reception

 Gigabit Operation

 

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  Bidirectional Operation Using Separate 

 

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Transmit and Receive Wavelengths 

 Single 3.3V Power Supply

 

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 Hot Swappable

 

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 Durable Metal Enclosure

 

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