HP FAX-750 Service Manual - Page 109

Selector No. 1 | 3 4 5 6 7 8 WSW05 (1st dial tone and busy tone detection) Function 1st dial tone detection Max. pause time allowable for remote ID code detection Busy tone detection in automatic sending mode Busy tone detection in automatic receiving mode Not used. Setting and Specifications No. 1 2 3 000 001 010 011 100 101 110 111 : 3.5 sec. WAIT : 7.0 sec. WAIT : 10.5 sec. WAIT : 14.0 sec. WAIT : 17.5 sec. WAIT : 21.0 sec. WAIT : 24.5 sec. WAIT : Detection (Without WAIT) 0 : 2 seconds 1: 1 second No. 5 6 00 : 01 : 10 : 11 : No detection Detection only after dialing No detection Detection before and after dialing 0 : Yes 1: No NOTE: Selectors 5 through 7 are not applicable in those countries where no busy tone detection is supported, e.g., U.S.A. l Selectors 1 through 3: 1st dial tone detection These selectors activate or deactivate the 1st dial tone detection function which detects the 1st dial tone issued from the PSTN when a line is connected to the PSTN. Setting all 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. (However, in those countries which support no dial tone detection function, e.g., in the U.S.A., setting these selectors to "1" makes the equipment start dialing after a WAIT of 3.5 seconds.) For the detecting conditions of the 1st dial tone, refer to WSW07 and WSW08. Other setting combinations deactivate the dial tone detection function so that the equipment starts dialing after the specified WAIT (3.5, 7.0, 10.5, 14.0, 17.5, 21.0, or 24.5 seconds) without detection of a dial tone when a line is connected to the PSTN. V - 16