204
6.2.13 Line Monitor Circuit
The Line Monitor Circuit consists of an operational DAA (The secondary side chip) and its peripheral
circuits.
Its function is to monitor the dial tone, DTMF tone, response signals, etc. over the speaker. It also sounds
the output of the key touch tones, alarm tones, etc. from the panel CPU over the speaker. The Received
Signals are output from DAA of Secondary circuit, and through Analog AGC, Electronic Volume, Amplifier
and over the speaker.
The monitor tone from the phone line and the buzzer tone from the panel can be adjusted from the Control
Panel.
Analog AGC
Electronic Volume
(Monitor)
DAA
(Secondary)
Si3021
Amplifier
Electronic Volume
(Buzzer)
Buzzer Signal from Panel
AOUT
Speaker
Содержание Panafax UF-4000
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Страница 21: ...21 1 4 Control Panel For USA and Canada UF 490 UF 4000 ...
Страница 22: ...22 For Other Destinations UF 490 UF 4100 UF 4100 ABBR ...
Страница 44: ...44 24 Remove the Pressure Roller 322 25 Remove the Exit Roller 304 24 25 ...
Страница 70: ...70 3 10 ILS PC Board CN73 Refer to SC PC Board CN11 ...
Страница 72: ...72 3 12 ACI PC Board Refer to Power Supply Unit CN101 ...
Страница 136: ...136 MMM DD YYYY 10 55 VERSION UF 0000 AAV1xxxxAU MEMORY SIZE MB TX RX PRT CPY 000017 000005 000036 000007 SHIPMENT SET ...
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Страница 280: ...280 4 3 2 1 D C B A 1 2 3 4 Drawing Name Power Supply Unit For USA Canada 2 2 Model UF 490 UF 4000 ...
Страница 282: ...282 4 3 2 1 D C B A 1 2 3 4 Drawing Name Power Supply Unit For Other Destinations 2 2 Model UF 490 UF 4100 ...
Страница 283: ...memo ...
Страница 284: ...DZZSM00309 ...