
characteristic, volume level, sidetone are configured by ASIC CODEC interface DCLK, CS,
DOUT, DIN. In addition, the CODEC has an internal I/O port that supports Hook detection, DTMF
detection, BELL relay control and DIAG relay control. Also, it converts A/D to D/A, and 4-line-
analogue signal to PCM code (É/A) in G.711 format.
8.4. 2W-4W CONVERSION
It converts 4W-VOX signal used in the PBX to 2W-VOX signal used in SLT, and vise versa. It
consists of an operational amplifier in the HIC and a balanced network in the CODEC. It can
control the return loss of the audio data and frequency characteristics. By modifying the
CODEC program, it can match the corresponding impedance.
21
Содержание KX-TDA0174
Страница 12: ...6 TROUBLESHOOTING GUIDE 12 ...
Страница 13: ...13 ...
Страница 14: ...14 ...
Страница 15: ...15 ...
Страница 16: ...16 ...
Страница 17: ...17 ...
Страница 18: ...18 ...
Страница 36: ...11 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 12 CABINET AND ELECTRICAL PARTS LOCATION 36 ...
Страница 37: ...13 ACCESSORIES AND PACKING MATERIALS 37 ...
Страница 38: ...38 ...
Страница 57: ...No 1 2 No 1 3 No 1 4 57 ...
Страница 58: ...No 1 5 No 1 6 No 1 7 58 ...
Страница 59: ...No 1 8 No 1 9 No 1 10 59 ...
Страница 60: ...No 1 11 No 1 12 No 1 13 60 ...
Страница 61: ...No 1 14 No 1 15 No 1 16 61 ...
Страница 62: ...No 1 17 No 1 18 No 1 19 62 ...
Страница 63: ...No 2 20 No 2 21 No 2 22 63 ...