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GS920 Series Gigabit Ehternet Switch Installation and User's Guide
GS920 Series Overview
AT-GS920/24
Switch
The GS920 Series switch includes the following models and hardware
features:
"AT-GS920/24 Switch"
"AT-GS920/16 Switch" on page 17
"AT-GS920/8 Switch" on page 17
"AT-GS920/8PS Switch" on page 18
"Wall and Rack Mount Brackets" on page 19
"10/100/1000 Base-TX Twisted Pair Ports" on page 20
"Power Connector" on page 21
Each model uses an internal high efficiency PSU and a low power chipset
to conform with the Allied Telesis commitment to environmentally friendly
processes. They can all be installed on a desktop, mounted on a wall or
mounted in a 19" rack.
Each switch features support for Multi-Cast Frame Pass-Through,
IEEE802.3az Energy Efficiency power savings, Loop Detection and
Prevention, Flooding Mode and Flow Control. These features are each
configurable by dedicated front panel DIP switches. See "AT-GS920
Feature Descriptions" on page 27 and "Feature Configuration" on page 73
for more information.
In addition, the switch ports can be individually or collectively configured
for auto-negotiation or manual duplex and speed settings. The highest
number port's default setting is MDI/MDI-X and can be forced to fixed MDI
while all of the other ports can be forced to MDI-X. These port settings are
configured by a combination of the front panel DIP switches and push
buttons. See "Ethernet Port Configuration" on page 84 for more
information.
The AT-GS920/24 switch can be installed on a desktop, a wall, or in a
19-inch equipment rack. To mount the switch on the wall or in an
equipment rack, use the brackets that are provided with the switch.
The AT-GS920/24 switch has 24 each 10/100/1000Base-TX twisted pair
ports as shown in Figure 1.
Figure 1. AT-GS920/24 Front Panel
16
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