Brother FAX 750, Service Manual

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WSW12 (Signal detection condition setting)
Selector
No.
Function Setting and Specifications
1
2
Min. OFF time length of calling
signal (Ci)
No. 1 2
0 0 : 1500 ms
0 1 : 500 ms
1 0 : 700 ms
1 1 : 900 ms
3
4
Max. OFF time length of calling
signal (Ci)
No. 3 4
0 0 : 6 sec.
0 1 : 7 sec.
1 0 : 9 sec.
1 1 : 11 sec.
5
6
Detecting time setting
No. 5 6
0 0 : 800 ms (1000 ms
*
)
0 1 : 200 ms
1 0 : 250 ms
1 1 : 150 ms
7 Delay 0: Yes 1: No
8 Not used.
* 1000 ms in Chinese versions.
l Selectors 1 through 4: Min. and max. OFF time length of calling signal (Ci)
If the equipment detects the OFF state of calling signal (Ci) for a time length which is greater than
the value set by selectors 1 and 2 and less than the value set by selectors 3 and 4, it interprets the
Ci signal as OFF.
l Selectors 5 and 6: Detecting time setting
These selectors set the time length required to make the equipment acknowledge itself to be called.
That is, if the equipment continuously detects calling signals with the frequency set by selectors 1
through 4 of WSW14 during the time length set by these selectors 5 and 6, it acknowledges the
call.
l Selector 7: Delay
Setting this selector to "0" allows the equipment to insert a 900 ms WAIT after acknowledgment of
the call until the equipment turns on the CML relay to start receiving operation.