Motorola MSF 5000 Instruction Manual page 212

Chapter
4
Alignment
MSF
5000
Instruction Manual
Alignment Procedures
Status Tone Adjustment
4-46
10.
11.
12.
13.
14.
Adjust
the
STAC Low
End Equalization Level
(EEPOT
A)
so
that the
level
measured at the comparator is
the same
level recorded in
step
5.
Do
not
readjust
EEPOTS C
or
9.
Adjust
the
STAC Low
End Equalization Level
(EEPOT
A) to the same
level
recorded in step
5.
Deactivate all activated MUXbus
bits.
Set the Intercom
switch
to
Off.
Disconnect
the
audio generator from
the
MIC AUDIO
input.
The following procedure is performed when
a
station is configured to have status
tone sent from the station.
This
adjustment also sets the receiver and repeater
squelch
EEPOTs.
When completed,
the status tone
EEPOT
is set to
provide
the
required status tone
level
to be sent
down
the
wireline Line
2.
If
the station is
configured
to
operate
with Spectra-TAC/DIGITAC
Encoder Option
(C269), the receiver and repeater
squelch levels
are
also adjusted
to
provide
the proper unsquelching level.
NOTE
Only
perform this procedure
if
the station
being
aligned
is configured
to
generate status tone.
Inject an on channel 1mV
RF
signal, modulated
with
a
1
kHz
tone at 100%
full
station deviation
(60%
full station deviation for
trunked stations), into the
receiver antenna connector on
the
Junction
Box.
1.
Refer to Table 4-8 for
values of full station deviation.
Set the
PL Dis/Xmit
to
PL Dis.
2.
Monitor
the
receive audio across Line
2
(+)
and
Line
2
(-) and adjust the
Line
2
Output Level
(EEPOT C)
for the
maximum desired phone line level.
3.
This is typically in
the range of
0
dBm through
-10 dBm.
Measure and record
the
level
at the
input
to the
comparator
or other
equipment expecting status
tone from the station.
4.
Set the
PL Dis/Xmit
to the center
(normal) position.
5.
Remove
the
RF
signal
generator from the receiver and
verify
the receiver is
squelched.
6.
Monitor
the
TAC
comparator input and adjust
the status tone
Level
(EEPOT
8)
for
a 2175
Hz
status tone level
13
dB
(9
dB for
trunked stations)
below
the
level recorded in
step
4.
7.
68P81092E04
3/19/94
Chapter
4
Alignment
MSF
5000
Instruction Manual
Alignment Procedures
Status Tone Adjustment
4-46
10.
11.
12.
13.
14.
Adjust
the
STAC Low
End Equalization Level
(EEPOT
A)
so
that the
level
measured at the comparator is
the same
level recorded in
step
5.
Do
not
readjust
EEPOTS C
or
9.
Adjust
the
STAC Low
End Equalization Level
(EEPOT
A) to the same
level
recorded in step
5.
Deactivate all activated MUXbus
bits.
Set the Intercom
switch
to
Off.
Disconnect
the
audio generator from
the
MIC AUDIO
input.
The following procedure is performed when
a
station is configured to have status
tone sent from the station.
This
adjustment also sets the receiver and repeater
squelch
EEPOTs.
When completed,
the status tone
EEPOT
is set to
provide
the
required status tone
level
to be sent
down
the
wireline Line
2.
If
the station is
configured
to
operate
with Spectra-TAC/DIGITAC
Encoder Option
(C269), the receiver and repeater
squelch levels
are
also adjusted
to
provide
the proper unsquelching level.
NOTE
Only
perform this procedure
if
the station
being
aligned
is configured
to
generate status tone.
Inject an on channel 1mV
RF
signal, modulated
with
a
1
kHz
tone at 100%
full
station deviation
(60%
full station deviation for
trunked stations), into the
receiver antenna connector on
the
Junction
Box.
1.
Refer to Table 4-8 for
values of full station deviation.
Set the
PL Dis/Xmit
to
PL Dis.
2.
Monitor
the
receive audio across Line
2
(+)
and
Line
2
(-) and adjust the
Line
2
Output Level
(EEPOT C)
for the
maximum desired phone line level.
3.
This is typically in
the range of
0
dBm through
-10 dBm.
Measure and record
the
level
at the
input
to the
comparator
or other
equipment expecting status
tone from the station.
4.
Set the
PL Dis/Xmit
to the center
(normal) position.
5.
Remove
the
RF
signal
generator from the receiver and
verify
the receiver is
squelched.
6.
Monitor
the
TAC
comparator input and adjust
the status tone
Level
(EEPOT
8)
for
a 2175
Hz
status tone level
13
dB
(9
dB for
trunked stations)
below
the
level recorded in
step
4.
7.
68P81092E04
3/19/94