Brother MFC990CW Service Manual page 491

Selector
No.
Erasing time length of ICM tone
1 recorded preceding the tone
detection starting point in the case
|
of automatic line disconnection
3 due to no voice signal received
(Not used.)
No. of CNG cycles to be detected
(when the line is connected via the
4
external telephone in the external
TAD mode or via the machine in
5
F/T mode)
(Not used.)
Number of DTMF tone signals for
6
inhibiting the detection of CNG
7
during external TAD operation
8 Not used.
Note: Selectors 1 through 5 are applicable to models with built-in TAD.
• Selectors 1 through 3: Erasing time length of ICM tone recorded preceding the tone detection
If the machine has disconnected the line after detection of disconnection tone in ICM
recording, it erases tone recorded preceding the tone detection starting point for the time
length set by these selectors.
• Selectors 4 and 5: No. of CNG cycles to be detected (when the line is connected via the external
telephone in the external TAD mode or via the machine in F/T mode)
(Not used.)
The machine 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 machine in F/T mode.
• Selectors 6 and 7: Number of DTMF tone signals for inhibiting the detection of CNG during
external TAD operation
If the machine receives this specified number of DTMF tone signals during external TAD
operation, it will not detect CNG afterwards.
If these selectors are set to "1, 1," the CNG detection will not be inhibited.
WSW34
(Function setting 12)
Function
starting point in the case of automatic line disconnection due to no voice
signal received (Not used.)
App. 4-39
Setting and Specifications
No. 1 2 3
0 0 0 : 0 sec.
0 0 1 : 1 sec.
0 1 0 : 2 sec.
0 1 1 : 3 sec.
1 0 0 : 4 sec.
1 0 1 : 5 sec.
1 1 0 : 6 sec.
1 1 1 : 7 sec.
No. 4 5
0 0 : 0.5
0 1 : 1
1 0 : 1.5
1 1 : 2
No. 6 7
0 0 : 3
0 1 : 2
1 0 : 1
1 1 : OFF
(A)
(B)
(C)
(D)
sec.: second(s)
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