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Table 1 describes the system and port LEDs on the AT-GS900/16 and
AT-GS900/24 Gigabit Ethernet switches.
POWER
Speed/Link/
Act
FDX/HDX
AC Power
Both AT-GS900/16 and AT-GS900/24 Gigabit Ethernet switches have a
single AC power supply socket on the back panel, which has an auto-
Connector
switch AC inputs. Refer to Appendix A, "Technical Specifications" on
page 32, for the input voltage range. To power ON or OFF the switch, you
connect or disconnect the power cord.
Table 1. System and Port LEDs
LED
State
Green
OFF
Solid Green
Solid
Orange
Blinking
Green
Blinking
Orange
OFF
Solid Green
OFF
AT-GS900/16, AT-GS900/24 Gigabit Ethernet Switches
Description
The switch is powered ON and operating
normally.
The switch has no power.
A valid 1000 Mbps link is established on
the port.
A valid 10 or 100 Mbps link is
established on the port.
A 1000 Mbps packet transmission and
reception is occurring on the port.
A 10/100 Mbps packet transmission and
reception is occurring on the port.
No link is established on the port
A full-duplex link is established on the
port.
A half-duplex link is established on the
port.
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