User Manual
Table Of Contents
- SECTION 1: Overview
- SECTION 2: Description
- SECTION 3: Host Unit Installation
- SECTION 4: Operation
- SECTION 5: Maintenance
- SECTION 6: General Information
- ABOUT THIS MANUAL
- RELATED PUBLICATIONS
- ADMONISHMENTS
- GENERAL SAFETY PRECAUTIONS
- STANDARDS CERTIFICATION
- LIST OF ACRONYMS AND ABBREVIATIONS
- SECTION 1: Overview
- SECTION 2: Description
- SECTION 3: Host Unit Installation
- 1 before starting installation
- 2 OSP Fiber Cable Installation Guidelines
- 3 WDM mounting procedure (optional accessory)
- 4 HU mounting procedure
- 5 Chassis ground connection
- 6 coaxial cable connections
- 7 optical connections
- 8 controller area network connections
- 9 service interface connection
- 10 external alarm system connections
- 11 dc power connections
- SECTION 4: Operation
- 1 before starting operation
- 2 turn-up system and verify operation
- 2.1 Turn-Up Procedure
- 2.2 Download HU and RU System Software
- 2.3 Determine Forward Path Input Signal Level
- 2.4 Enter Site Name and Site Number
- 2.5 Enter Host Forward Attenuation
- 2.6 Determine Output Signal Level at STM Antenna Port
- 2.7 Enter Remote Forward Attenuation
- 2.8 Enter Host Reverse Attenuation
- 2.9 Enter Host Forward and Reverse Delay
- SECTION 5: Maintenance
- SECTION 6: General Information
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation
Page 4-7
©
2002,
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,
and
the
number
of
channels
present.
To
interface
with
the
HU,
the
signal
level
of
the
composite
forward
path
RF
signal
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
level
through
the
use
of
an
external
attenuator.
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
at
the
BTS.
The
required
signal
levels
and
test
points
are
shown
in
Figure 4-5.
2. Measure
the
RF
level
of
a
single
carrier,
such
as
the
control
channel,
in
dBm.
Make
sure
the
resolution
bandwidth
of
the
spectrum
analyzer
or
power
meter
is
narrow
enough
to
measure
the
power
of
the
single
30
kHz
channel
only.
3. Verify
that
all
carriers
are
coming
in
at
equal
power
at
bandwidth
and
adjust
to
the
same
level
if
necessary.