Download KX-TDA6174XJ KX

KX-TDA6174XJ / KX-TDA6174X
7.5.
POWER SUPPLY
A constant-current power supply in HIC provides +30V, ring side 0V grounding to SLC. The maximum feeding current is 30mA.
7.6.
DIAL PULSE DETECTION
When a telephone initiates pulse dialing, this feature detects the pulse-dialing signal.When the telephone initiates dialing, changes
in voltage is detected by the RING terminal in HIC, and this information is transmitted to the HOOK terminal (Example: 3-pin
IC200A) as Make=L/Break=H signal. This digital signal is received by CODEC IC (Example: 35-pin IC201) and recognized as
dialing signal. Both 10pps and 20pps can be received. The dialing speed is analyzed by software.
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