The DEM-220T/220R Bidirectional Fast Ethernet 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  fber  cables.  These  transceivers  provide  the  100BASE-BX operation and physical compactness to deliver the speed, reliable long-distance data transfer, and deployment fexibility that today’s fber networks require.

Ideal for Long Distance Application
The DEM-220T/220R  transceivers can be used  to connect  together  switches,  servers and fber modules on a campus or metropolitan area network  (MAN). Providing up  to 20 km of fber cable distance,  these highly  integrated  transceivers offer  low  jitter performance  for extended optical  link  support without any degradation in performance.

Reliable Transmission
The DEM-220T/220R  transceivers combine  transmitting and  receiving signals onto one fber 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 fips that relationship.

Standard Compliance
The DEM-220T/220R  transceivers  use  standard  simplex  LC  connectors  for  fber  cable  connection.  They conform  to  industry  standards  and  are  interoperable with  certain D-Link  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.

Durable Design
The DEM-220T/220R  transceivers are packed  in a Small Form Pluggable  (SFP) metal housing  to  increase durability.