Wsw07 - Brother MFC-8220 Service Manual

Selector
No.
1
Frequency band range
2
3 Not used.
4
| 2nd dial tone detection level
6
7 1st dial tone interrupt detecting
time
8 Not used.
NOTE:
Selectors 1, 2, 4 through 7 are not applicable in those countries where no dial tone or line
current detection is supported, e.g., U.S.A.
l 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."
l
Selectors 4 through 6:
These selectors set the detection level of the 2nd dial tone.
l
Selector 7: 1st dial tone interrupt detecting time
This selector sets the allowable time length of an interrupt which should not be interpreted as
an interrupt in the 1st dial tone dialing.
WSW07 (Dial tone setting 1)
Function
(Z = 600 Ω)
2nd dial tone detection level
A-13
Setting and Specifications
No. 1 2
0 0 : Narrows by 10 Hz
0 1 : Initial value
1 X : Widens by 10 Hz
No. 4 5 6
0 0 0 : -21 dBm
0 0 1 : -24 dBm
0 1 0 : -27 dBm
0 1 1 : -30 dBm
1 0 0 : -33 dBm
1 0 1 : -36 dBm
1 1 0 : -39 dBm
1 1 1 : -42 dBm
0: 30 ms 1: 50 ms
MFC-8220
SERVICE MANUAL