3
LED
State
Meaning
ALM
On
r
example,
la
At
least
one
device
alarm
(fo
temperature
a rm)
is
present.
Off
is
t.
No
device
alarm
presen
ENC
On
y
are
There
are
input
signals
but
the
not
being
encoded.
Blinking
are
input
ls
a
y
a
There
signa
nd
the
re
being
encoded.
Off
input
There
are
no
signals.
ACT
Blinking
ce
or
The
devi
is
transmitting
receiving
traffic.
Off
The
device
is
transmitting
not
or
receiving
traffic.
LINK
On
A
link
is
present.
Off
No
link
is
present.
Ports
an
s
Table
1
‐
2
Ports
and
button
descriptio
d
Button
ns
Port/button
Quantity
Description
Remarks
