D-Link DGS-3120-24PC-SI Hardware Installation Manual - Port Functions
xStack
®
DGS-3120 Series Layer 3 Managed Gigabit Switch Hardware Installation Guide
36
Port Functions
Feature
Detailed Description
Console Port
RJ-45 interface for Out-Of-Band (OOB) CLI configuration.
Copper Ports
Compliant with the following standards:
• IEEE 802.3 compliance
• IEEE 802.3u compliance
• IEEE 802.3ab compliance
• IEEE 802.3az compliance (100/1000Mpbs)
• Support Half/Full-Duplex operations
• Auto-negotiation
• Auto MDI/MDIX
• IEEE 802.3x Flow Control support for Full-Duplex mode, Back Pressure when Half-
Duplex mode, and Head-of-line blocking prevention
SFP Ports
Compliant with the following standards:
• IEEE 802.3z compliance
• IEEE 802.3x Flow Control support for Full-Duplex mode
• Support Auto-negotiation for Full-Duplex/ flow control operations
SFP Transceivers Supported:
• DEM-310GT (1000BASE-LX, Single-mode, 10km)
• DEM-311GT (1000BASE-SX, Multi-mode, 550m)
• DEM-312GT2 (1000BASE-SX, Multi-mode, 2km)
• DEM-314GT (1000BASE-LHX, Single-mode, 50km)
• DEM-315GT (1000BASE-ZX, Single-mode, 80km)
• DEM-210 (100BASE-FX, Single-mode, 15km)
• DEM-211 (100BASE-FX, Multi-mode, 2km)
• DGS-712 (1000BASE-T, 1G Copper, 100m)
WDM transceivers supported:
• DEM-330T (1000BASE-BX, TX-1550/RX-1310nm, Single-mode, 10km)
• DEM-330R (1000BASE-BX, TX-1310/RX-1550nm, Single-mode, 10km)
• DEM-331T (1000BASE-BX, TX-1550/RX-1310nm, Single-mode, 40km)
• DEM-331R (1000BASE-BX, TX-1310/RX-1550nm, Single-mode, 40km)
• DEM-220T (100BASE-BX-D, TX-1550/RX-1310 nm, Single-mode, 20km)
• DEM-220R (100BASE-BX-U, TX-1310/RX-1550 nm, Single-mode, 20km)
PoE Specifications
• Supports IEEE 802.3af PoE and IEEE 802.3at PoE+ compliance.
• Supplies power to PD devices up to 15.4W per port (802.3af) or 30W+ per port
(802.3at) more sufficiently.
• Power Budget: 370W, 740W with RPS.
• Supports the Auto Discovery feature. It’ll automatically recognize a connection to PD
devices and immediately provide power.
• Supports the Auto Disable Port feature. If the port’s electrical current is over 600mA,
this feature will activate and still keep the other ports active.
• Supports the Active Circuit Protection feature. It’ll automatically disable a port if
there is an electrical short and still keep the other ports active.
Power Classification Table: