and A3600-48-POE EI. The –48 VDC from the equipment room
cannot be used directly. Otherwise, devices may be damaged.
1.2 A3600-24 SI
1.2.1 Front Panel
I. Schematic diagram
The A3600-24 SI provides twenty-four 10Base-T/100Base-TX auto-sensing Ethernet ports, four 1000Base-X SFP ports, and
one Console port on the front panel, as shown in Figure 1-1.
(1) 10Base-T/100Base-TX auto-sensing Ethernet port status LEDs
(2) 1000Base-X SFP port status LEDs
(3) AC power LED
(4) Mode LED
(5) Mode button
(6) 7-segment digital LED
(7) Console port
Figure 1-1
Front panel of the A3600-24 SI
II. LEDs
The A3600-24 SI provides one AC power LED, one mode LED, one 7-segment digital LED, twenty-four 10Base-T/100Base-TX
auto-sensing Ethernet port status LEDs, and four 1000Base-X SFP port status LEDs on the front panel. You can learn how the
switch operates by observing the LEDs listed in Table 1-2.
Table 1-2
LEDs on the front panel of the A3600-24 SI
LED
Mark
Status
Indication
Mode LED
Mode
Speed
Solid green
Rate information of 10Base-T/100Base-TX
auto-sensing Ethernet ports, and
1000Base-X SFP ports
Duplex
Solid yellow
Duplex information of 10Base-T/100Base-
TX auto-sensing Ethernet ports, and
1000Base-X SFP ports
AC Power
LED
PWR
Solid green
The switch is started normally.
Flashing green (1 Hz)
The system is running a power-on self-test
(POST) or downloading software.
Solid red
The system fails a POST or a fault occurs.
Flashing yellow (1 Hz)
Some ports fail a POST or malfunctions
occur.
OFF
The power is disconnected.
10Base-
T/100
—
Speed
Green
ON
A 100 Mbps link is present.