Panasonic KX-FP342CX, Service Manual

Page: 186 / 247

This circuit monitors various tones, such as 1 DTMF tone,2 Alarm/
Beep/Key tone/Bell.
2. Signal path
A. DTMF MONITOR
(Speaker Operation)
Refer to
CHECK SHEET ().
(Handset Operation)
Refer to
CHECK SHEET ().
B. ALARM/BEEP/KEY TONE/BELL
Refer to CHECK SHEET ().
7.11. TAM INTERFACE SECTION
7.11.1. FUNCTION
If EXT. TAM is selected in the Receive mode, the unit receives documents for FAX calls or the
external TAM records a voice message automatically.
To switch between the answering machine and facsimile in the EXT. TAM Mode.
# EXTERNAL TAM OPERATION UNIT OPERATION
1 When the bell signal rings as many times as
the number memorized into the connected
answering machine (TAM), the answering
machine is connected to the line and the
answering message is sent out to the line.
(OGMout for 8 ~ 16 sec.)
The length of the answering message
should be 8~16 seconds.
While the message is being played, the unit
starts to detect the CNG signal.(A)
If the unit detects the CNG signal, it will
switch to FAX receivingand disconnect the
external TAM automatically.
2 After sending the OGM, the answering
machine starts to record the message of the
other party (ICM recording).
If the unit cannot detect the CNG signal for
about 30 seconds, the unit will disconnect
the line. (C)
Attention 2:
When the answering machine cannot answer the telephone call because of disconnection or the
recording tape is full, the unit picks up the call after 5 rings (#006 in the feature). Then it switches
to the facsimile.
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