Panasonic KX-TD500 Installation Manual page 42

3.
Speech end detector.
Speech end detector detects call progress tones.
DISA Card (Direct Inward System Access card) (KX-T96191) Operation
1.
The LED indicator on the DISA card lights when the system resets or DISA local reset
occurs.
AGC Card (Automatic Gain Control card) (KX-T96193) Functions
1.
4 CO-to-CO speech paths with AGC amplifier and Echo-Suppressor.
A CO-to-CO speech path consists of up-path and down-path, up-path is from call-originate
CO to call-answer CO, and AGC amplifier is inserted and speech end detector is connected.
The Maximum amplification of AGC is 14 dB.
The Echo-Suppressor is inserted in a CO-to-CO speech path.
2.
4 DTMF receivers.
DTMF transceiver is used as DTMF repeater.
So, AGC card microprocessor controls DTMF repeater.
3.
8 Speech End Detectors.
Speech end detector of AGC is quite the same as that of the DISA card.
AGC Card (Automatic Gain Control card) (KX-T96193) Operation
1.
The LED indicator on the AGC card lights when the system resets or AGC local reset
occurs.
RMT Card (Remote Circuit card) (KX-T96196) Functions
1.
Modem (300/1200 bps) for remote administration.
Modem protocol free wheeling (TTY).
RMT Card (Remote Circuit card) (KX-T96196) Operation
1.
The LED indicator on the RMT card lights when the system resets or RMT local reset
occurs.
ERMT Card (Enhanced Remote Circuit card) (KX-TD50197) Functions
1.
Modem (V.34 MODEM) for remote administration
ERMT Card (Enhanced Remote Circuit card) (KX-TD50197) Operation
1.
The LED indicator on the ERMT card lights when the system resets or ERMT local reset
occurs.
System Outline
1.6 Specifications
43