Brother MFC4820C Service Manual page 217

Selectors 6 and 7: Dial tone detection in PABX
These selectors activate or deactivate the dial tone detection function which detects a dial tone
when a line is connected to the PABX.
Setting both of these selectors to "1" activates the dial tone detection function so that the
equipment starts dialing upon detection of a dial tone when a line is connected.
Other setting combinations deactivate the dial tone detection function so that the equipment starts
dialing after the specified WAIT (3.5, 5.0, or 7.0 sec.) without detection of a dial tone when a line
is connected.
Selector
No.
Earth function in transfer
1
facility
2
| Not used.
4
5
Earth time length for earth
function
6
7
Break time length for flash
function
8
NOTE: Selectors 1 and 5 through 8 are not applicable in those countries where no transfer facility is
supported.
Selector 1: Earth function in transfer facility
This selector determines whether or not the earth function is added to the transfer setting menu to
be accessed by the function switch.
Selectors 5 and 6: Earth time length for earth function
These selectors set the short-circuiting time length of the telephone line (La or Lb) to ground.
Selectors 7 and 8: Break time length for flash function
These selectors set the break time length.
WSW04
(TRANSFER facility setting)
Function
App. 4-5
Setting and Specifications
0: Provided
No. 5 6
0 0 : 200 ms
0 1 : 300 ms
1 0 : 500 ms
1 1 : 700 ms
No. 7 8
0 0 : 80 ms
0 1 : 110 ms
1 0 : 250 ms
1 1 : 500 ms
1: Not provided