Brother MFC 4550, Service Manual

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V –
13
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Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch
This selector determines whether or not the dialing mode may be switched between the
pulse (DP) and tone (PB) dialing by using the function switch.
●
Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing
This selector sets the default dialing mode (pulse dialing or tone dialing) which may 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 be also switched automatically.
WSW02
(Tone signal setting)
Function Setting and Specifications
Selector
No.
1
2
3
4
5
|
8
Tone signal transmission time
length
Min. pause in tone dialing
No. 1 2
0 0 : 70 ms
0 1 : 80 ms
1 0 : 90 ms
1 1 : 100 ms
No. 3 4
0 0 : 70 ms
0 1 : 80 ms
1 0 : 90 ms
1 1 : 140 ms
0: 0 dB 1: 8 dB
0: 0 dB 1: 4 dB
0: 0 dB 1: 2 dB
0: 0 dB 1: 1 dB
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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 di-
aling.
(Example: If "1," "2," "3," "4," and "5" are dialled.)
"1" "2" "3" "4"
"5"
Min. pause set by
selectors 3 and 4
Tone signal transmission time
length set by selectors 1 and 2
●
Selectors 5 through 8: Attenuator for pseudo ring backtone to the line
These selectors are used to adjust the sound level of beep generated as a ring backtone in
the F/T mode or as a signal during remote control operation or at the start of ICM recording.
Setting two or more selectors to "1" produces addition of attenuation assigned to each selec-
tor.
This setting will be limited if selector 8 of WSW23 is set to "0."
Attenuator for pseudo ring
backtone to the line (selectable
in the range of 0-15 dB)