Rear Panel Description; Rps Connector; Plug-In Modules; Dem-340T 1000Base-T Module - D-Link DGS-3312SR Product Manual

The Switch includes a digital indicator to indicate the Switch status in a stacked
Switch group. An "F" indicates the Switch is acting in the capacity of a master Switch
of a stacked group of DGS-3312SR/DES-3226S Switches. The remaining slave
Stack ID
Switches in the group will display a corresponding stack number (1-C) to indicate the
logical position of the slave Switch in the stacked group. See the discussion of Switch
Stacking below for more information on stacking DGS-3312SR/DES-3226S Switches.

Rear Panel Description

The rear panel of the Switch contains an AC power connector.
The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in the female connector
of the provided power cord into this socket, and the male side of the cord into a power outlet. The Switch automatically
adjusts its power setting to any supply voltage in the range from 100 ~ 240 VAC at 50 ~ 60 Hz.

RPS Connector

Connect the optional external redundant power supply to the RPS connector. If the Switch's internal power unit fails, the
redundant power system automatically supplies power to the Switch for uninterrupted operation.
The Switch supports the D-Link RPS-200 or RPS-500 redundant power supply units.

Plug-in Modules

The DGS-3312SR Switch is able to accommodate optional plug-in modules in order to increase functionality and
performance. Two modules may be installed and used in combination with any of the three available modules. Plug-in
modules must be purchased separately.

DEM-340T 1000BASE-T Module

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Front-panel module
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Connects to 1000BASE-T devices
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LED indicators for Link/Activity
DGS-3312SR Gigabit Layer 3 Switch
NOTICE: Do not connect the stacked Switch group to the network until
you have properly configured all Switches for stacking. An improperly
configured Switch stack can cause a broadcast storm.
Figure 1- 4. Rear panel view of the Switch
Figure 1- 5. 1000BASE-T Four-port module
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