User Manual
ADCP-75-114 • Issue 2C • January 2002
Page 11
©
2002,
ADC
Telecommunications,
Inc.
2.4 Chassis Ground Connection
A
stud
is
provided
on
the
rear
side
of
the
chassis
for
connecting
a
grounding
wire
to
the
chassis.
Use
the
following
procedure
to
connect
the
grounding
wire
to
the
chassis
and
to
route
the
grounding
wire
to
an
approved
earth
ground
source:
1.
Obtain
a
length
of
#18
AWG
(1.00
mm)
insulated
stranded
copper
wire
for
use
as
a
chassis
grounding
wire.
2.
Terminate
one
end
of
the
wire
with
a
ring
terminal.
3.
Locate
the
chassis
ground
stud
at
the
rear
of
the
RIU
as
shown
in
Figure
8.
4.
Attach
the
ring
end
of
the
wire
to
the
chassis
ground
stud
(see
Figure
8).
5.
Route
the
free
end
of
the
chassis
grounding
wire
to
an
approved
(per
local
code
or
practice)
earth
ground
source.
16169-A
Figure 8. Chassis Ground Stud
6.
Cut
the
chassis
grounding
wire
to
length
and
connect
it
to
the
approved
ground
source
as
required
by
local
code
or
practice.
Note:
Be
sure
to
maintain
reliable
grounding
for
rack
and
wall
mounted
equipment.
Pay
particular
attention
to
ground
source
connections.
2.5 Coaxial Cable Connections
The
RF
signal
connections
between
the
RIU
and
DHU
are
supported
through
a
pair
of
type
N
female
connectors
mounted
on
the
RIU
front
panel.
One
connector
is
used
for
connecting
the
forward
path
coaxial
cable
and
the
other
connector
is
used
for
connecting
the
reverse
path
coaxial
cable.
The
RF
signal
connection
between
the
RIU
and
the
donor
antenna
is
supported
through
a
single
type
N
female
connector.
The
single
connector
is
used
for
connecting
the
coaxial
jumper
cable
that
links
the
RIU
to
the
donor
antenna.