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DGS-3120 Series Layer 2 Managed Stackable Gigabit Switch Hardware Installation Guide
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Appendix Section
Appendix A – Technical Specifications
General
Feature
Detailed Description
Standards
IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
IEEE 802.3ab 1000BASE-T Gigabit Ethernet
IEEE 802.3z 1000BASE-T (SFP “Mini GBIC”)
IEEE 802.1D/2004/Spanning Tree (802.1s, 802.1w)
IEEE 802.1Q-2005 VLAN
IEEE 802.1p Priority Queues
IEEE 802.1X Network Access Control
IEEE 802.3 Nway Auto-negotiation
IEEE 802.3ad Link Aggregation Control
IEEE 802.3x Full-duplex Flow Control
IEEE 802.1u Fast Ethernet
Protocols
CSMA/CD
Data Transfer Rates:
Ethernet
Fast Ethernet
Gigabit Ethernet
Half-duplex
Full-duplex
10 Mbps
20Mbps
100Mbps
200Mbps
-------------
2000Mbps
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)
Number of Ports
DGS-3120-24TC: 24-Port 10/100/1000Base-T, 4 Combo Copper/SFP ports and 2
dedicated stacking ports.
DGS-3120-24SC: 8-Port 10/100/1000Base-T/SFP combo ports, 16 SFP ports and 2
dedicated stacking ports.
DGS-3120-24SC-DC: 8-Port 10/100/1000Base-T/SFP combo ports, 16 SFP ports and 2
dedicated stacking ports.
DGS-3120-24PC: 24-Port PoE 10/100/1000Base-T, 4 Combo PoE Copper/SFP ports
and 2 dedicated stacking ports.
DGS-3120-48TC: 48-Port 10/100/1000Base-T, 4 Combo Copper/SFP ports and 2
dedicated stacking ports.
DGS-3120-48PC: 48-Port PoE 10/100/1000Base-T, 4 Combo PoE Copper/SFP ports
and 2 dedicated stacking ports.
Physical and Environmental
Feature
Detailed Description
Internal Power Supply
AC Input: 100 – 240 VAC, 50-60 Hz
Optional Redundant
Power Supply
Provide one connector in rear panel to install optional external RPS to enhance the
reliability. When internal power is failed, the optional external RPS will take over all the
power immediately and automatically.