Brother FAX 750, Service Manual

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WSW05 (1st dial tone and busy tone detection )
Selector
No.
Function Setting and Specifications
1
|
3
1st dial tone detection
No. 1 2 3
0 0 0 : 3.5 sec. WAIT
0 0 1 : 7.0 sec. WAIT
0 1 0 : 10.5 sec. WAIT
0 1 1 : 14.0 sec. WAIT
1 0 0 : 17.5 sec. WAIT
1 0 1 : 21.0 sec. WAIT
1 1 0 : 24.5 sec. WAIT
1 1 1 : Detection (Without WAIT)
4
Max. pause time allowable for
remote ID code detection
0 : 2 seconds 1: 1 second
5
6
Busy tone detection in auto-
matic sending mode
No. 5 6
0 0 : No detection
0 1 : Detection only after dialing
1 0 : No detection
1 1 : Detection before and after dialing
7
Busy tone detection in auto-
matic receiving mode
0 : Yes 1: No
8 Not used.
NOTE: Selectors 5 through 7 are not applicable in those countries where no busy tone detection is
supported, e.g., U.S.A.
l l Selectors 1 through 3: 1st dial tone detection
These selectors activate or deactivate the 1st dial tone detection function which detects the 1st dial
tone issued from the PSTN when a line is connected to the PSTN.
Setting all of these selectors to "1" activates the dial tone detection function so that the equipment
starts dialing upon detection of a dial tone when a line is connected. (However, in those countries
which support no dial tone detection function, e.g., in the U.S.A., setting these selectors to "1"
makes the equipment start dialing after a WAIT of 3.5 seconds.) For the detecting conditions of the
1st dial tone, refer to WSW07 and WSW08.
Other setting combinations deactivate the dial tone detection function so that the equipment starts
dialing after the specified WAIT (3.5, 7.0, 10.5, 14.0, 17.5, 21.0, or 24.5 seconds) without detection
of a dial tone when a line is connected to the PSTN.