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7.3. 2W-4W CONVERSION
It converts 4W-VOX signal used in the PBX to 2W-VOX signal used in SLT, and vice 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.
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.
7.4. DTMF SIGNAL DETECTION
Each port has its own DTMF receiver. The receiver detects the signal using IC1 for port A through D, IC2 for port E through H, IC4
for port I through L and IC6 for port M through P. The CODEC detects the DTMF data to be effective at EST terminal=H. This
information is detected in the EMPR via SAMSON, then DTMF signal is detected by EMPR reading the DTMF receiver data that
came through the SAMSON local bus.
for port I through L and IC6 for port M through P. The CODEC detects the DTMF data to be effective at EST terminal=H. This
information is detected in the EMPR via SAMSON, then DTMF signal is detected by EMPR reading the DTMF receiver data that
came through the SAMSON local bus.
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KX-TDA6174XJ / KX-TDA6174X
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