Brother International MFC-7050C Service Manual - Page 111

Communications, setting, Selector, Starting, point, training, check, WSW26, Function, setting,

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Selector No. 1 2 I 8 WSW23 (Communications setting) Function Starting point of training check (TCF) Setting and Specifications 0: From the head of a series of zeros 1: From any arbitrary point Not used. • Selector 1: Starting point of training check (TCF) At the training phase of receiving operation, the called station detects for 1.0 second a training check (TCF) command, a series of zeros which is sent from the calling station for 1.5 seconds to verify training and give the first indication of the acceptability of the line. This selector sets the starting point from which the called station should start counting those zeros. If this selector is set to "0," the called station starts counting zeros 100 ms after the head of a series of zeros is detected. If it is set to "1," the called station starts counting zeros upon detection of 10-ms successive zeros 50 ms after the head of a series of zeros is detected. In this case, if the detection of 10-ms successive zeros is too late, the data counting period will become less than 1.0 second, making the called station judge the line condition unacceptable. WSW26 (Function setting 1) Selector No. 1 5 6 7 8 Function Not used. No. of CNG cycles to be detected (when the line is connected via the external telephone in the external TAD mode or via the facsimile equipment in F/T mode) Not used. Setting and Specifications No. 6 7 0 0 : 0.5 (A) 01 : 1 (B) 1 0 : 1.5 (C) 11 : 2 (D) NOTE: Selectors 6 and 7 are applicable to those models equipped with a built-in TAD. • Selectors 6 and 7: No. of CNG cycles to be detected The equipment interprets a CNG as an effective signal if it detects a CNG signal by the number of cycles specified by these selectors when the line is connected via the external telephone in the external TAD mode or via the facsimile equipment in F/T mode. V - 15

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WSW23
(Communications
setting)
Selector
No.
Function
Setting
and
Specifications
1
Starting
point
of
training
check
(TCF)
0:
From
the
head
of
a
series
of
zeros
1:
From
any
arbitrary
point
2
I
8
Not
used.
•
Selector
1:
Starting
point
of
training
check
(TCF)
At
the
training
phase
of
receiving
operation,
the
called
station
detects
for
1.0
second
a
training
check
(TCF)
command,
a
series
of
zeros
which
is
sent
from
the
calling
station
for
1.5
seconds
to
verify
training
and
give
the
first
indication
of
the
acceptability
of
the
line.
This
selector
sets
the
starting
point
from
which
the
called
station
should
start
counting
those
zeros.
If
this
selector
is
set
to
"0,"
the
called
station
starts
counting
zeros
100
ms
after
the
head
of
a
series
of
zeros
is
detected.
If
it
is
set
to
"1,"
the
called
station
starts
counting
zeros
upon
detection
of
10
-ms
successive
zeros
50
ms
after
the
head
of
a
series
of
zeros
is
detected.
In
this
case,
if
the
detection
of
10
-ms
successive
zeros
is
too
late,
the
data
counting
period
will
become
less
than
1.0
second,
making
the
called
station
judge
the
line
condition
unacceptable.
WSW26
(Function
setting
1)
Selector
No.
Function
Setting
and
Specifications
1
Not
used.
5
No.
of
CNG
cycles
to
be
detected
No.
6
7
6
(when
the
line
is
connected
via
the
0
0
:
0.5
(A)
external
telephone
in
the
external
0
1
:
1
(B)
7
TAD
mode
or
via
the
facsimile
1
0
:
1.5
(C)
equipment
in
F/T
mode)
1
1
:
2
(D)
8
Not
used.
NOTE:
Selectors
6
and
7
are
applicable
to
those
models
equipped
with
a
built-in
TAD.
•
Selectors
6
and
7:
No.
of
CNG
cycles
to
be
detected
The
equipment
interprets
a
CNG
as
an
effective
signal
if
it
detects
a
CNG
signal
by
the
number
of
cycles
specified
by
these
selectors
when
the
line
is
connected
via
the
external
telephone
in
the
external
TAD
mode
or
via
the
facsimile
equipment
in
F/T
mode.
V
-
15