Brother MFC5890CN Service Manual page 391

Selector
No.
Min. detection period required for
1
interpreting incoming calling
2
signal (CI) as OFF
Max. detection period for
3
incoming calling signal (CI) being
4
OFF
Min. detection period required for
5
acknowledging incoming calling
6
signal (CI) as ON
Line connection timing
7
(Not used.)
8 Not used.
• Selectors 1 through 4: Min. detection period required for interpreting incoming calling signal (CI)
If the machine detects the OFF state of a CI signal for the period 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.
• Selectors 5 and 6: Min. detection period required for acknowledging incoming calling signal (CI)
as ON
These selectors set the period required to make the machine acknowledge itself to be
called. That is, if the machine continuously detects a CI signal with the frequency set by
selectors 1 through 4 on WSW14 during the period set by these selectors 5 and 6, then it
acknowledges the call.
• Selector 7: Line connection timing (Not used.)
If a line is connected in a ringer-ON period, FAX models equipped with an SDAA circuit
may malfunction due to the ringer voltage. To make the line connection stable, this selector
should be set to "0" so that a line is connected in a ringer-OFF period.
WSW12
(Signal detection condition setting)
Function
as OFF
Max. detection period for incoming calling signal (CI) being OFF
App. 4-17
Setting and Specifications
No. 1 2
0 0 : 1500 ms
0 1 : 500 ms
1 0 : 700 ms
1 1 : 900 ms
No. 3 4
0 0 : 6 sec.
0 1 : 7 sec.
1 0 : 9 sec.
1 1 : 11 sec.
No. 5 6
0 0 : 800 ms (1000 ms*)
0 1 : 200 ms
1 0 : 250 ms
1 1 : 150 ms
0: Ringer-OFF
period (default)
sec.: second(s), ms: millisecond(s)
*1000 milliseconds in Chinese models.
1: Ringer-ON
period
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