Brother MFC-3340CN Service Manual page 345

Selector
No.
1 Dial tone/busy tone detection
| level during recording of ICM
3 (Not used.)
4
| Not used.
8
NOTE: Selectors 1 through 3 are applicable to models equipped with internal TADs.
l Selectors 1 through 3: Dial tone/busy tone detection level during recording of ICM (Not used.)
If the machine (called station) detects dial tone (400 Hz continuously) or busy tone (400 Hz
intermittently) exceeding the detection level specified by these selectors for the period specified by
selectors 1 through 4 of WSW35, then it interprets the calling station as being disconnected. The
machine stops TAD recording and disconnects the line.
WSW30
(Function setting 8)
Function
App. 4-33
Setting and Specifications
No. 1 2 3
0 0 0 : -38.0 dBm (A)
0 0 1 : -39.5 dBm (B)
0 1 0 : -41.0 dBm (C)
0 1 1 : -42.5 dBm (D)
1 0 0 : -44.0 dBm (E)
1 0 1 : -45.5 dBm (F)
1 1 0 : -47.0 dBm (G)
1 1 1 : -48.5 dBm (H)
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