Brother FAX 1840C, Service Manual

Page: 315 / 401

App. 4-3 Confidential
l Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch
This selector determines whether or not the dialing mode can be switched between the pulse (DP) and
tone (PB) dialing by using the function switch.
l Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing
This selector sets the default dialing mode (pulse dialing or tone dialing) which can be changed by
the function switch. If the user switches it with the function switch when selector 7 is set to "0," the
setting specified by this selector will also be switched automatically.
WSW02
(Tone signal setting)
Selector
No.
Function Setting and Specifications
1
2
Tone signal transmission time
length
No. 1 2
0 0 : 70 ms
0 1 : 80 ms
1 0 : 90 ms
1 1 : 100 ms
3
4
Min. pause in tone dialing
No. 3 4
0 0 : 70 ms
0 1 : 80 ms
1 0 : 90 ms
1 1 : 140 ms
5
|
8
Attenuator for pseudo ring
backtone to the line (selectable in
the range of 0-15 dB, in 1 dB
increments)
0: 0 dB 1: 8 dB
0: 0 dB 1: 4 dB
0: 0 dB 1: 2 dB
0: 0 dB 1: 1 dB
l Selectors 1 through 4: Tone signal transmission time length and Min. pause in tone dialing
These selectors set the tone signal transmission time length and minimum pause in tone dialing.
(Example: If "1," "2," "3," "4," and "5" are dialed.)
l Selectors 5 through 8: Attenuator for pseudo ring backtone to the line
These selectors are used to adjust the sound volume of a ring backtone in the F/T mode, an on-hold
sound, or a beep generated as a signal during remote control operation or at the start of ICM
recording.
The larger the value specified by these selectors, the greater the attenuation.