Brother 8250P - FAX B/W Laser Printer Service Manual page 113

Selector
No.
1
Frequency band range
2
3 Line current detection
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.
Selectors 1 and 2: Frequency band range
l l
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."
Selector 3: Line current detection
l
This selector determines whether or not the equipment should detect a line current before starting
dialing.
Selectors 4 through 6: 2nd dial tone detection level
l
These selectors set the detection level of the 2nd dial tone.
Selector 7: 1st dial tone interrupt detecting time
l
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 )
V - 20
Setting and Specifications
No. 1 2
0 0 : Narrows by 10 Hz
0 1 : Initial value
1 X : Widens by 10 Hz
0: No 1: Yes
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