Brother MFC-7050C, Руководство по обслуживанию

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V - 13
WSW20
(Overseas communications mode setting)
Selector
No.
Function Setting and Specifications
1 Not used.
2
Overseas communications mode
(Reception)
0: 2100 Hz 1: 1100 Hz
3
Overseas communications mode
(Transmission)
0: OFF 1: Ignores DIS once.
4
|
8
Not used.
l
Selectors 2 and 3: Overseas communications mode
These selectors should be used if the facsimile equipment malfunctions in overseas
communications. According to the communications error state, select the signal specifications.
Setting selector 2 to "1" allows the equipment to use 1100 Hz CED signal instead of 2100 Hz in
receiving operation. This prevents malfunctions resulting from echoes, since the 1100 Hz signal does
not disable the echo suppressor (ES) while the 2100 Hz signal does.
Setting selector 3 to "1" allows the equipment to ignore a DIS signal sent from the called station once
in sending operation. This operation suppresses echoes since the first DIS signal immediately
follows a 2100 Hz CED (which disables the ES) so that it is likely to be affected by echoes in the
disabled ES state. However, such a disabled ES state will be removed soon so that the second and
the following DIS signals are not susceptible to data distortion due to echoes. Note that some models
when called may cause error by receiving a self-outputted DIS.