Wsw07 - Brother MFC8440D Service Manual

7/13/2019
APPENDIX 3 FIRMWARE SWITCHS (WSW)
Selector
No.
1
2
3
4
|
6
7
8
NOTE:
Selectors 1 through 7 are not applicable in those countries where no dial tone or line current
detection is supported, e.g., U.S.A.
Selectors 1 and 2: Frequency band range

These selectors set the frequency band for the 1st dial tone and the busy tone (before
dialing) to be detected.
This setting is effective only when selectors 1 through 3 of WSW05 are set to "1,1,1."
Selectors 4 through 6:

These selectors set the detection level of the 2nd dial tone.
Selector 7:

This selector sets the allowable time length of an interrupt which should not be interpreted as
an interrupt in the 1st dial tone dialing.
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WSW07 (Dial tone setting 1)
Function
Frequency band range
Not used.
2nd dial tone detection level
(Z = 600
Ω
1st dial tone interrupt detecting
time
Not used.
2nd dial tone detection level
1st dial tone interrupt detecting time
Brother 8840D Service Manual
Setting and Specifications
No. 1 2
0 0
0 1
1 X
No. 4 5 6
0 0 0 :
0 0 1 :
0 1 0 :
0 1 1 :
)
1 0 0 :
1 0 1 :
1 1 0 :
1 1 1 :
0: 30 ms
A-14
: Narrows by 10 Hz
: Initial value
: Widens by 10 Hz
-21 dBm
-24 dBm
-27 dBm
-30 dBm
-33 dBm
-36 dBm
-39 dBm
-42 dBm
1: 50 ms
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