AM-48 Test Set (18-0015) Operating Instructions
0015-S07
7-4
7.37 Dialing
1. For DTMF or MF dialing, set desired send level per ¶7.12.3.
2. Set Switch 10 to <2W>, <4W>, or <4W REV> for desired 2-wire
or 4-wire line connection.
3. Match line impedance per ¶6.4 or 6.5. For Dial Pulse (DP), set
Switch 13 to <BRDG> while dialing, and set to <TERM> when
making measurements.
4. Set Switches 7 and 12 for dialing mode per Table 7-6.
5. The line connected to the AM-48 should provide dial tone.
Adjust speaker volume to a comfortable level.
6. Table 7-7 lists the MF and DTMF dual tones on each of the
keys. Note that there is no MF on key [D].
7. Dial number using keypad. See Figure 5-6 for dial display when
Switch 2 is in <SEND>. If timeout occurs, go back on hook by
setting Switch 12 to <ON HK> for two to three seconds, then
switch back to <PULSE> or <TONE> to go back off-hook.
Re-enter dialed number.
8. If a person has been dialed, press Switch 14 to <TALK> and
speak into the microphone. To listen to the other person, release
<TALK> to <MON SND>.
9. If an Ameritec AM3-2A DTMF Commandable Responder has
been called, it will automatically answer ringing and be open to
DTMF commands. See Table 7-6 for DTMF dialing setup and
dial appropriate DTMF commands.
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