15
KX-TH1211B/KX-TH1212B/KX-TGA930T
4.8.
Circuit Operation (Base Unit)
General Description:
(DSP, Flash Memory) is a digital speech/signal processing system that implements all the functions of speech compression and
memory management required in a digital telephone.
The DSP system is fully controlled by a host processor DSP. The host processor provides activation and control of all that
functions as follows.
4.8.1.
DSP (Digital Speech/Signal Processing: IC501)
•
DTMF Generator
When the DTMF data from the handset is received, the DTMF signal is output.
•
Caller ID demodulation
The DSP implements monitor and demodulate the FSK/DTMF signals that provide CID information from the Central Office.
•
Digital Switching
The voice signal from telephone line is transmitted to the handset or the voice signal from the handset is transmitted to the
Telephone line, etc. They are determined by the signal path route operation of voice signal.
•
Block Interface Circuit
RF part, LED, Key scan, Telephone line.
Summary of Contents for KX-TGA930T - Cordless Extension Handset
Page 2: ...2 KX TH1211B KX TH1212B KX TGA930T ...
Page 34: ...34 KX TH1211B KX TH1212B KX TGA930T 4 15 Signal Route ...
Page 35: ...35 KX TH1211B KX TH1212B KX TGA930T RF part signal route ...
Page 37: ...37 KX TH1211B KX TH1212B KX TGA930T 5 2 Display Indicators ...
Page 38: ...38 KX TH1211B KX TH1212B KX TGA930T 6 Installation Instructions 6 1 Connections ...
Page 42: ...42 KX TH1211B KX TH1212B KX TGA930T 7 1 2 Programming using the Direct Commands ...
Page 43: ...43 KX TH1211B KX TH1212B KX TGA930T ...
Page 44: ...44 KX TH1211B KX TH1212B KX TGA930T ...
Page 45: ...45 KX TH1211B KX TH1212B KX TGA930T 7 2 Error Messages ...
Page 46: ...46 KX TH1211B KX TH1212B KX TGA930T 7 3 Troubleshooting ...
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Page 89: ...89 KX TH1211B KX TH1212B KX TGA930T 11 1 2 Handset ...
Page 90: ...90 KX TH1211B KX TH1212B KX TGA930T 11 1 3 Charger Unit ...
Page 91: ...91 KX TH1211B KX TH1212B KX TGA930T 11 2 How to Replace the Handset LCD ...
Page 92: ...92 KX TH1211B KX TH1212B KX TGA930T ...
Page 100: ...100 KX TH1211B KX TH1212B KX TGA930T Memo ...
Page 105: ...105 KX TH1211B KX TH1212B KX TGA930T Memo ...
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Page 118: ...118 KX TH1211B KX TH1212B KX TGA930T Memo ...
Page 130: ...130 KX TH1211B KX TH1212B KX TGA930T 15 5 DB56 DSP Package Description ...
Page 134: ...134 KX TH1211B KX TH1212B KX TGA930T 16 3 Cabinet and Electrical Parts Charger Unit ...
Page 135: ...135 KX TH1211B KX TH1212B KX TGA930T 16 4 Accessories and Packing Materials 16 4 1 KX TH1211B ...
Page 136: ...136 KX TH1211B KX TH1212B KX TGA930T 16 4 2 KX TH1212B ...
Page 137: ...137 KX TH1211B KX TH1212B KX TGA930T 16 4 3 KX TGA930T ...