Installation Manual
ADCP-75-112 • Issue 2A • June 2001
Page 18
©
2001,
ADC
Telecommunications,
Inc.
OPTICAL
ADAPTER
OPTICAL
CONNECTOR
16452-A
FORWARD PATH (RX)
CONNECTOR
REVERSE PATH (TX)
CONNECTOR
OPTICAL CONNECTOR
ASSEMBLY DETAIL
Figure 15. Optical Port Fiber Optic Cable Connection
4. Remove
the
dust
caps
from
the
optical
fiber
connectors
and
from
the
DRU
optical
port.
5. Clean
each
connector
(follow
connector
supplier’s
recommendations)
and
then
insert
the
optical
link
connector
pair
into
optical
port
as
shown
in
Figure
15.
6. Dress
and
secure
the
fibers
at
the
DRU
per
standard
industry
practice.
2.8 DC Power Connection
The
DC
power
interface
for
the
DRU
is
supported
by
an
RJ-45
female
connector
located
on
the
DRU
front
panel.
The
DRU
is
powered
by
nominal
48
Vdc
power
which
may
be
provided
by
the
DHU,
DEU,
or
by
an
AC/DC
converter
(accessory
item).
Use
whichever
of
the
following
procedures
is
appropriate
for
the
installation.
2.8.1 Power Provided by the DHU or DEU
Use
the
following
procedure
to
connect
the
DC
power
cable
when
the
DRU
is
powered
by
the
DHU
or
DEU.
1. Locate
the
DC
power
cable
that
was
routed
to
the
DRU
from
the
DHU
or
DEU.
Note:
The
procedures
for
routing
the
DC
power
cable
from
the
DHU
or
DEU
to
the
DRU
are
covered
in
either
the
Digivance
ICS
Installation
and
Operation
Manual
(ADCP-75-
110),
which
is
provided
with
the
DHU,
or
the
Digivance
ICS
Digital
Expansion
Unit
Installation
Instructions
(ADCP-75-111)
which
is
provided
with
the
DEU.
Note:
The
power
cable
maximum
length
is
500
meters
(1,641
feet).
2. Connect
the
DC
power
cable
to
the
48
Vdc
connector
on
the
DRU
as
shown
in
Figure
16.