Brother International IntelliFax-3550 Service Manual - Page 97
Earth time length for earth, in ICM recording
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q Selector 8: "R" key function This selector determines whether or not the 1st dial tone detection function (specified by selectors 1 through 3 of WSW05) is added to the R key. If this selector is set to "0," pressing the R key automatically activates the 1st dial tone detection function when the PABX and the automatic calling are selected by using the function switch. If you press the R key and a dial number in succession, the equipment will automatically carry out the 1st dial tone detection function following the original transfer function as shown below. Original transfer function of R key Dial number 1st dial tone detection function WSW04 (TRANSFER facility setting) Selector No. 1 Function Earth function in transfer facility 2 Dual tone detection frequency in ICM recording 3 4 Not used. 5 Earth time length for earth function 6 Setting and Specifications 0: Provided 1: Not provided No. 2 3 00 : 01 : 1x : 350 + 440 Hz (A) 440 + 480 Hz (B) 480 + 620 Hz (C) No. 5 6 0 0 : 200 ms 0 1 : 300 ms 1 0 : 500 ms 1 1 : 700 ms 7 Break time length for flash 8 function No. 7 8 0 0 : 80 ms 0 1 : 110 ms 1 0 : 250 ms 1 1 : 500 ms NOTE: Selectors 1 and 5 through 8 are not applicable in those countries where no transfer facility is supported. Selectors 2 and 3 are applicable to those models equipped with a built-in TAD or in the U.S.A. q 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. q 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. This setting is effective only when the earth function is selected for the R key by using the function switch. q Selectors 7 and 8: Break time length for flash function These selectors set the break time length. This setting is effective only when the flash function is selected for the R key by using the function switch. V - 15