R
R
e
e
m
m
o
o
t
t
e
e
W
W
e
e
b
b
M
M
a
a
n
n
a
a
g
g
e
e
r
r
s
s
P
P
o
o
w
w
e
e
r
r
D
D
s
s
i
i
n
n
e
e
P
P
o
o
w
w
e
e
r
r
o
o
v
v
e
e
r
r
E
E
t
t
h
h
e
e
r
r
n
n
e
e
t
t
S
S
o
o
l
l
u
u
t
t
i
i
o
o
n
n
s
s
27
4.3.1.1
Ports Status Panel
The display panel includes a number of visual indicators as shown
in Figure 4-4; Green illuminated port indicates that the terminal unit
has been identified as "Power over Ethernet Enabled" and is active
and receiving power. Disabled ports illuminate red, indicating that
the port is not supplying power and is not active. An “
X
” symbol
appears (indicates inactive port) as well.
Main
LED
Link LED
Enabled
port
Disabled
port
Figure 4-4: Ports Status Panel
4.3.1.2
Power & Communication Indications
Two LED's are located on the front panel, marked “Main” and Link
as described in Table 4-1 and Table 4-2.
Table 4-1: Main Status Indications
Indicator
Color
Main Power Status
Remarks
Off
Internal power supply
unit is unplugged or
faulty
Internal power supply
voltage is too low. All
ports are disconnected
Green
Indicates AC power
input active
Internal power supply
voltage is within limits
AC
LED
Green
blinking
Internal power supply
voltage is out of range
All ports are
disconnected
DC
LED
Green
Indicates normal
48VDC power
supplied to PDs
Applicable only for
Midspan unit with
48VDC optional
module
