User Manual
ADCP-75-150 • Preliminary Issue A • March 2003 • Section 4: Operation
Page 4-7
©
2003,
ADC
Telecommunications,
Inc.
Figure 4-4. Select Control Program File Window
3. Check
the
software
version
numbers
shown
in
the
Software
Info
section
of
the
Prg
Load
display
against
the
version
numbers
of
the
software
files
displayed
in
the
Select
Control
Program
File
window.
If
files
in
the
Select
Control
Program
File
window
are
a
later
version
than
those
shown
in
the
Prg
Load
display,
proceed
with
the
software
download.
If
the
version
numbers
shown
in
the
Software
Info
section
are
the
same
as
the
version
numbers
of
the
files
in
the
Select
Control
Program
File
window,
the
software
download
is
not
required.
4. Select
the
required
file
to
download
and
click
on
the
OK
button.
5. Click
on
the
HOST
Load
button
(see
Figure 4-3)
to
start
the
download.
6. Repeat
steps
2
through
4
for
the
REMOTE.
2.3 Determine Forward Path Input Signal Level
The
level
of
the
composite
RF
input
signal
at
the
FORWARD
RF
IN
port
at
the
HU
will
vary
depending
on
the
type
of
BTS,
the
cable
loss,
the
number
of
channels
present,
and
the
required
forward
path
composite
power.
If
maximum
composite
RF
output
is
required,
the
signal
level
of
the
composite
forward
path
RF
signal
at
the
HU
forward
path
input
must
be
adjusted
to
fall
within
a
range
of
–10
to
–40
dBm.
If
the
signal
level
is
not
within
this
range,
it
must
be
adjusted
to
fall
within
this
range
through
the
use
of
an
external
attenuator
capable
of
handling
the
BTS
forward
path
output
power.
If
using
the
Conditioning
Panel
or
Duplexing
Panel,
refer
to
the
Digivance
800
and
1900
MHz
Interface
Panels
User
Manual
(ADCP-75-147)
for
the
procedures
for
measuring
and
adjusting
the
input
RF
signal
level
at
the
HU.
If
connecting
a
single
HU
to
a
single
BTS,
use
the
following
procedure
to
measure
and
adjust
the
input
RF
signal
level
at
the
HU:
1. Connect
a
spectrum
analyzer
or
power
meter
to
the
forward
path
output
port
of
the
BTS.
The
required
signal
levels
and
test
points
are
shown
in
Figure 4-5.
Note:
Check
the
input
rating
of
the
test
equipment
and
the
output
rating
of
the
BTS.
To
avoid
burning
out
the
spectrum
analyzer
or
power
meter,
it
may
be
necessary
to
insert
a
30
dB
100W
(or
similar)
attenuator
between
the
BTS
and
test
equipment.