Specifications
xStack® DGS-3420 Series Layer 2+ Managed Stackable Gigabit Switch Hardware Installation Reference Guide 
39 
Appendix Section 
Appendix A – Technical Specifications 
General 
Feature  Detailed Description 
Standards 
IEEE 802.3 compliance  
IEEE 802.3u compliance  
Support Full-Duplex operations  
IEEE 802.3az compliance (Hardware Version :B1) 
IEEE 802.3x Flow Control support for Full-Duplex mode  
IEEE 802.3ab compliance  
IEEE 802.3af compliance (DGS-3420-28PC & DGS-3420-52P only) 
IEEE 802.3at compliance (DGS-3420-28PC & DGS-3420-52P only) 
IEEE 802.3z compliance  
IEEE 802.3ae compliance  
IEEE 802.3aq compliance 
IEEE 1588 
Protocols 
CSMA/CD 
Data Transfer Rates:  
Ethernet  
Fast Ethernet 
Gigabit Ethernet 
10 Gigabit Ethernet 
Half-duplex    Full-duplex 
10 Mbps    20Mbps 
100Mbps    200Mbps 
-------------    2Gbps 
-------------    20Gbps 
Stacking Topology 
Duplex Ring, Duplex Chain 
Network Cables 
Cat.5 Enhanced for 1000BASE-T 
UTP Cat.5, Cat. 5 Enhanced for 100BASE-TX 
UTP Cat.3, 4, 5 for 10BASE-T 
EIA/TIA-568 100-ohm screened twisted-pair (STP)(100m) 
Physical and Environmental 
Feature  Detailed Description 
Internal Power Supply  AC Input: 100~240VAC, 50~60Hz 
Optional Redundant 
Power Supply 
One connector in back to install optional external RPS. When internal power fails, the 
optional external RPS will take over all the power supply immediately and automatically.  
DPS-500: DGS-3420-28SC/28TC/26SC/52T 
DPS-700: DGS-3420-28PC/52P 
Fans 
The IC Sensor detects the temperature on the switch automatically, and adjusts the speed. 
Power Consumption 
For hardware version A1/A2, the following applies: 
DGS-3420-28SC: 60.3 Watts (Max.) 
DGS-3420-28TC: 50.8 Watts (Max.) 










