Explanation Of Cpu Data Communication; Calling; To Terminate Communication; Ringing - Panasonic KX-FPC135 Service Manual

KX-FPC135 / KX-FPC141
10 EXPLANATION OF CPU
DATA COMMUNICATION

10.1. Calling

10.2. To Terminate Communication

10.3. Ringing

After detecting the Ring signal from circuit, Base Unit sends a
ring signal DATA (Ring), then the Handset starts ringing.
10.4. Ports for Transmitting and
Receiving of Data
Handset:
transmitting ... 44 Pin receiving ... 25 Pin
Base Unit:
transmitting ... 10 Pin receiving ... 7 Pin
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