112
UF-5500 / 4500
10.1.4.3. DTMF Signal
This Service Mode is used to check the DTMF (Dual Tone Multi Frequency) signal output.
The DTMF signal can be generated using the following procedure.
Service Mode 4 - DTMF Signal
Step
Operation or Unit Condition
LCD Display
(The pictured model is UF-5500.)
1
Standby
2
Press “FUNCTION” and then “7”.
3
Press “MONITOR” four times, then press “*”.
4
Enter the key operator password (The factory default ID is 00000000.) and press
"Set".
5
Press “4”.
6
Press “3” and “START”.
7a
Press "START" for DTMF Single Tone Generation.
8a
Enter the signal number (1-8) to select the DTMF signal.
7b
Press "2" and "START" for Dual Tone Generation.
8b
Enter the signal number (0-#) to select the DTMF Dual tone.
9
Press "CLEAR" to end the signal generation. To select another signal, repeat step 8a
or 8b.
10
Press "STOP" twice to return to standby.
DTMF Single Tone Table
DTMF Dual Tone Table
Number
DTMF Signal Tones
Number
DTMF Dual Tones
1
697 Hz
0
941 Hz + 1336 Hz
2
770 Hz
1
697 Hz + 1209 Hz
3
852 Hz
2
697 Hz + 1336 Hz
4
941 Hz
3
697 Hz + 1477 Hz
5
1209 Hz
4
770 Hz + 1209 Hz
6
1336 Hz
5
770 Hz + 1336 Hz
7
1477 Hz
6
770 Hz + 1477 Hz
8
1633 Hz
7
852 Hz + 1209 Hz
8
852 Hz + 1336 Hz
9
852 Hz + 1477 Hz
*
941 Hz + 1209 Hz
#
941 Hz + 1477 Hz
Summary of Contents for UF-5500
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Page 248: ...248 UF 5500 4500 13 5 Test Chart 13 5 1 ITU T No 1 Test Chart...
Page 249: ...249 UF 5500 4500 13 5 2 ITU T No 2 Test Chart...
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