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Page 16 / 160 Scroll up to view Page 11 - 15
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
4
Desktop or Shelf Installation
When installing the switch on a desktop or shelf, the rubber feet included with the device should first be attached. Attach
these cushioning feet on the bottom at each corner of the device. Allow adequate space for ventilation between the device
and the objects around it.
Figure 2-1.
Installing rubber feet for desktop installation
Rack Installation
The DGS-3224TGR can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with
other equipment. To install, attach the mounting brackets on the switch’s side panels (one on each side) and secure them
with the screws provided.
Figure 2- 2A.
Attaching the mounting brackets
Then, use the screws provided with the equipment rack to mount the witch on the rack.
Page 17 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
5
Figure 2- 2B.
Installing in an equipment rack
Power on
The switch can be used with AC power supply 100-240 VAC, 50 - 60 Hz. The switch’s power supply will adjust to the
local power source automatically and may be powered on without having any or all LAN segment cables connected.
After the switch is plugged in, the LED indicators should respond as follows:
•
All LED indicators except console will momentarily blink. This blinking of the LEDs indicates a reset of the system.
•
The console LED indicator will blink while the switch loads onboard software and performs a self-test. When the
POST is passed, the LED will become dark. If the POST fails, the indicator will light solid amber. This indicator lights
solid green when the switch is being logged-in via out-of-band/local console management through the RS-232 console
port using a straight-through serial cable.
Page 18 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
6
Power Failure
As a precaution in the event of a power failure, unplug the switch. When power is resumed, plug the switch back in.
External Redundant Power System
The switch supports an external redundant power system.
Figure 2-3.
DPS-300 in DPS-900 with DGS-3224TGR
NOTE:
See the DPS-300 documentation for more information.
CAUTION:
Do not use the switch with any redundant power system other than
the DPS-300.
Page 19 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
7
3
Identifying External Components
This chapter describes the front panel, rear panel, side panels, and LED indicators of the DGS-3224TGR.
Front Panel
The front panel of the switch consists of LED indicators, an RS-232 communication port, 24 1000BASE-T ports, and 4
mini-GBIC combo ports.
Figure 3-1.
Front panel view
•
An RS-232 DCE console port for setting up and managing the switch via a connection to a console terminal or PC
using a terminal emulation program.
•
Comprehensive LED indicators display the status of the switch and the network (see the
LED Indicators
section
below).
•
Twenty-four 1000BASE-T Ethernet ports for 10/100/1000 connections to a backbone, end stations, and servers.
•
Four mini-GBIC combo ports to connect fiber optic media to another switch, server, or network backbone.
Rear Panel
The rear panel of the switch contains an external Redundant Power Supply connector and an AC power connector.
Figure 3-2.
Rear panel view
•
The external Redundant Power Supply connector is used to connect the DGS-3224TGR to a DPS-300. An auto-switch
circuit automatically switches to an external RPS once the internal power supply fails. Transition from internal to
external supply shall not disturb normal operation.
•
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. Supported
input voltages range from 100 ~ 240 VAC at 50 ~ 60 Hz.
Page 20 / 160
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
8
Side Panels
The right side panel of the switch contains two system fans (see the top part of the diagram below). The left side panel
contains heat vents.
Figure 3-3.
Side panel views of the Switch
•
The system
fans are used to dissipate heat. The sides of the system also provide heat vents to serve the same purpose.
Do not block these openings, and leave at least 6 inches of space at the rear and sides of the switch for proper
ventilation. Be reminded that without proper heat dissipation and air circulation, system components might overheat,
which could lead to system failure.
LED Indicators
The LED indicators of the switch include Power, Console, RPS, Speed, and Link/Activity. The following shows the LED
indicators for the switch along with an explanation of each indicator.
Figure 3-4.
LED indicators
•
Power
– This indicator on the front panel lights solid green when the system is powered up and remains dark when the
system is not powered on.
•
Console
– This indicator blinks green when the system is booting up. It remains solid green when the system is
operating properly. The LED is solid amber when the POST fails.
•
RPS
– This indicator is lit solid amber when the external Redundant Power Supply is in operation and remains dark
when it is not in use or the main power is working normally.
•
Speed
– This row of indicators will light solid green when the connection speed is operating at 1000 Mbps. An unlit
LED indicates a connection speed of either 10 or 100 Mbps.
•
Link/Act
–
This row of indicators for the 24 copper ports light solid green when there is a secure connection (or link)
to a device on any of the ports. The LEDs blink green whenever there is reception or transmission (i.e. Activity--Act)
of data occurring on a port.

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