Brother International IntelliFax-3550 Service Manual - Page 102
XWSW07, 2nd dial tone detection level
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WSW07 (Dial tone setting 1) Selector No. Function 1 Frequency band range 2 3 Line current detection 4 2nd dial tone detection level | (Z = 600 Ω) 6 7 1st dial tone interrupt detecting time 8 Not used. Setting and Specifications No. 1 2 00 : 01 : 1X : Narrows by 10 Hz Initial value Widens by 10 Hz 0: No 1: Yes No. 4 5 6 000 : 001 : 010 : 011 : 100 : 101 : 110 : 111 : -21 dBm -24 dBm -27 dBm -30 dBm -33 dBm -36 dBm -39 dBm -42 dBm 0: 30 ms 1: 50 ms NOTE: WSW07 is not applicable in those countries where no dial tone is supported, e.g., U.S.A. q Selectors 1 and 2: Frequency band range These selectors set the frequency band for the 1st dial tone and the busy tone (before dialing) to be detected. This setting is effective only when selectors 1 through 3 of WSW05 are set to "1, 1, 1." q Selector 3: Line current detection This selector determines whether or not the equipment should detect a line current before starting dialing. q Selectors 4 through 6: 2nd dial tone detection level These selectors set the detection level of the 2nd dial tone. q Selector 7: 1st dial tone interrupt detecting time This selector sets the allowable time length of an interrupt which should not be interpreted as an interrupt in the 1st dial tone dialing. V - 20