D-Link DGS-3312SR Product Manual - Switch Stacking
DGS-3312SR Gigabit Layer 3 Switch
DEM-340MG SFP (Mini GBIC) Module
Figure 1- 6. Four-port Gigabit SFP module
• Front-panel module
• Connects to Gigabit Ethernet devices
• LED indicators for Link/Activity and Status
DEM-540 IEEE 1394 Stacking Module
Figure 1- 7. DEM-540 IEEE 1394 Stacking module
• Front-panel module
• Connect to four DES-3226S Switches (up to eight additional slave units may be stacked)
• Four transmitting ports and Four receiving port
• Use the connector of IEEE 1394b
• Data rate up to 1000 Mbps
• 8-segment LED display to indicate Switch ID number within the Switch stack
Switch Stacking
The DGS-3312SR can be stacked with a DES-3226S, functioning as a Master of the stack. There are two connection
options available to for stacking. One option is to use the built-in combination ports (1000BASE-T/SFP). The other
possibility is to install one or two DEM-540 stacking modules and complete the stacking connection through the IEEE
1394 stacking ports. With two stacking modules installed, the DGS-3312SR can be stacked with as many as twelve slave
units.
Each optional stacking module allows up to four DES-3226S Switches to be interconnected in a stack with the DGS-
3312SR. Two stacking modules may be used to form a nine-Switch stack consisting of one Master and eight Slaves,
managed through the DGS-3312SR Master Switch. The stacked group has a single IP address and is managed as a single
device. The entire Switch stack is managed and monitored through the network or alternatively, through the serial port on
the DGS-3312SR. The stacking modules connect to the slaves using IEEE 1394 serial cable (Firewire) in a star topology
for DES-3226S groups (see illustration on page 8).
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