C
HAPTER
1
| Introduction
Description of Hardware
– 20 –
ES-3026/3026P
M
ODE
B
UTTON
When the Mode button is depressed, the port LEDs display PoE information.
When the Mode button is not depressed, the port LEDs display link and
activity information.
P
OWER
S
UPPLY
I
NLET
There is one power inlet on the rear panel of the switch. The standard
power inlet is for the AC power cord.
Figure 3: Power Supply Inlet
G
ROUNDING
P
OINT
To prevent accidental electrical shock or damage to your switch, it is
recommended that you ground the switch to an earth point by attaching a
grounding wire (not supplied) to the grounding point located next to the
power inlet, with a metal screw. If located in a tall building, grounding
points include metal drain pipes, and other electrostatic conductive devices
that lead to the ground, or if located on the first floor of a building, the
ground outside itself.
Table 3: System Status LEDs
LED
Condition
Status
PWR
On Green
The unit’s internal power supply is operating
normally.
Off
The unit has no power connected.
Diag/PoE
(Mode button
not depressed)
On Green
The system diagnostic test has completed
successfully.
Flashing Green
The system boot up is in progress.
On Amber
The system diagnostic test is in progress.
Flashing Amber
The system diagnostic test has detected a fault.
Diag/PoE
(Mode button
depressed)
On Amber
Port LEDs display PoE status.
Flashing Amber
Supplied PoE power has reached 95% or more of
the total system power budget.
AC 100-240V, 50-60Hz, 3A
