Confidential
&
Proprietary
32/117
SC
‐
DAS
Figure
4.7
–
MPSU
at
a
glance
4.1.5
BIU
front/rear
panel
overview
1)
Front
panel
Figure
4.8
–
BIU
front
panel
view
Item
Description
1.
Alarm
LED
&
Reset
Communication
state
with
devices,
alarm
status
of
the
system
and
reset
switch
2.
DEBUG
(USB
B)
USB
port
for
communication
and
diagnosis
of
devices
through
PC/laptop
This
equipment
isfor
indoor
use
only
and
all
the
communication
wirings
are
limited
to
indoor
use
as
well.
3.
NMS(Ethernet
port)
Ethernet
port
for
upper
network
The
supporting
network
mode
is
UDP
protocol
4.
MDBU
LED
LED
to
show
whether
MDBU
is
installed
and
is
operating
properly