D-Link DEM-421XT 10Gigabit XFP (10GBASE-SR) DEM-421XT Leaflet

High performance 850nm Multimode 10GBASE-SR XFP transceiver

-  10G Multi-Mode 300m XFP
-  Compliant with 802.3ae 10GBASE-SR
-  LC Port Types
-  Full Duplex 802.3x Flow Control
-  Wave Length: 850nm
-  Power Support: 3.3V / 5V

-  71.1mm(L) x 18.35mm 

  (W) x 12.5mm(H)
-  2.8in. (L) x .72in. (W) x .49in (H)

-  Operation Temperature 0-70° C      

  (32-158°F)
-  Storage Temperature –45-85°C      

  (-49-185°F)
-  Humidity 0~85%
-  EMI: FCC Class B – EN 55022 Class B
-  15kV air discharge and 8 kV contact  

  discharge to the faceplate
-  RFI: EN 61000-4-3
-  This device also Complies with FDA  

  21 CFR 1040.10 and 1040.11 and  

  IEC 825-1
-  This device meets the fire resistance 

  requirements of Telcordia GR-63 

  Section 4.2. 
-  Safety: fire resistance requirements 

  of Telcordia* GR-63 Section 4.2

Designed to support distances up to 300 meters, the DEM-421XT is a high performance 850nm 
Multi-Mode XFP transceiver. Supporting Full-duplex, 10Gigabit speeds on Multi-Mode fiber cables. 
The DEM-421XT is 802.3ae 10GBASE-SR compliant and supports Full-duplex 802.3x Flow control. 
The DEM-421XT provides the necessary signal amplification for data to be transmitted to the network 
cable from the port, and vice versa. 
The DEM-421XT is hot swappable. You can remove or replace the transceiver with the system 
powered on. This permits modules and transceivers to be added or swapped without interrupting 
network systems.

D-Link Systems, Inc. 17595 Mt. Herrmann Street Fountain Valley CA 92708 www.dlink.com 
©Copyright D-Link Systems, Inc. 2004. All rights reserved. D-Link

®

 is a registered trademark 

of D-Link Systems, Inc. Other trademarks or registered trademarks are the 
property of their respective manufacturers or owners.  
Visit www.dlink.com for more details.  

DEM-421XT 

10GBASE-SR Multi-mode XFP up to 300m