Panasonic KX-TES824LA, Service Manual

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10.1.13. USB Circuit
The circuit which makes communication possible by PC and 1.1 standards by the USB controller in ASIC.
10.1.14. OGM Circuit
4M connected to ASIC by the memory controller in ASIC A maximum of 3-minute storing of OGM is possible to a serial flash Circuit.
10.1.15. Ring Signal Generator Circuit
This section generates the ring signal for the single line telephone. A 20/25Hz square wave is generated by the ASIC timer and sent
to low pass filter and the ringing signal amplifier circuit and stepped by BELL transformer, and then passed it through the ringing
signal switching relay to the single line telephone.
10.1.16. SMDR Interface Circuit
This is the RS232C interface port. When the port is connected to a printer. The port can be used to output the SMDR feature
recording messages and the contents of the system program.
10.1.17. Door Phone Interface
An intercom card interface consists of two intercom paths connected to a crossing point, and address data and CS signals.
10.1.18. OGM Interface
An OGM card interface consists of the memory control signal, and the address data and CS signal which are connected to ASIC.
10.1.19. Call ID Interface
A CALLID card interface consists of three CALLID signal lines from outside line, and address data and CS signal.
10.1.20. BV Interface
BV card interface consists of two BV telephone call paths connected to a crossing point, and address data and CS signals.
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KX-TES824LA / KX-TEM824LA /