224
SEP 2004
Ver. 1.2
DP-1520P/1820P/1820E
5.2.5.2. Tonal Signal
This Service Mode is used to check the tonal signal output. Signals can be output to the line using the
following procedure.
Press the “V”, ”/\” arrow keys to select the "4: MODEM Test" on the display.
↓
Press the “SET” key to select the "2: Tonal Test".
↓
Press the “SET” key.
↓
Press the desired number and press the "START" key.
↓
Press the “STOP” key twice to exit the service mode.
Tonal Signal Table
Number Signals
1 462 Hz
2 1080 Hz
3 1100 Hz
4 1300 Hz
5 1650 Hz
6 1850 Hz
7 2100 Hz
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