Panasonic KX-MB2085CXW, Service Manual

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KX-MB2085CXW/KX-MB2090CXW
6.4.6. Calling Line Identification Circuit (FSK)
1. Function
This unit is compatible with the Caller ID service offered by your local telephone company. To use this feature, you must sub-
scribe to a Caller ID service. The data for the caller ID from the telephone exchange is sent during the interval between the
first and second rings of the bell signal. The data from the telephone exchange is a modem signal which is modulated in an
FSK (Frequency Shift Keying) format. Data “0” is a 1200 Hz sine wave, and data 1 a 2200 Hz sine wave.
There are two type of the message format which can be received: i.e.the single data message format and multiple data mes-
sage format.
When there is multiple data in the unit, the name or telephone number are displayed.
2. Circuit Operation
Refer to Check Sheet for Signal Route of CNG/DTMF/Caller ID detection detection (P.138).
6.4.7. Calling Line Identification Circuit (DTMF)
1. Function
This unit is compatible with the Caller ID service offered by your local telephone company. To use this feature, you must sub-
scribe to a Caller ID service. This data for the caller ID from the telephone exchange is sent before the first rings of the bell
signal. The data from the telephone exchange is a DTMF signal.
2. Circuit Operation
Refer to Check Sheet for Signal Route of CNG/DTMF/Caller ID detection detection (P.138).
6.4.8. Calling Line Identification Circuit (FSK)
1. Function
This unit is compatible with the Caller ID service offered by your local telephone company. To use this feature, you must sub-
scribe to a Caller ID service. The data for the caller ID from the telephone exchange is sent during the interval between the
first and second rings of the bell signal. The data from the telephone exchange is a modem signal which is modulated in an
FSK (Frequency Shift Keying) format. Data “0” is a 1300 Hz sine wave, and data 1 a 2100 Hz sine wave.
There are two type of the message format which can be received:i.e.the single data message format and multiple data mes-
sage format.
The multiple data format allows to transmit the name and data code information in addition to the time and telephone number
data.
When there is multiple data in the unit, the name or telephone number are displayed.
2. Circuit Operation
Refer to Check Sheet for Signal Route of CNG/DTMF/Caller ID detection detection (P.138).
6.4.9. Remote FAX Activation Circuit
1. Function
Another telephone connected to same line activates the unit to the FAX mode by using a DTMF signal.
2. Signal Path
Refer to Check Sheet for Signal Route of CNG/DTMF detection (P.138).
6.4.10. TAM Interface Circuit
This circuit is to switch between FAX receiving and the external TAM’s message recording automatically.
For details, please refer to
TAM Interface Section (P.31).