Read Panasonic KX-NS0180X Service Manual online
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KX-NS0180X
4.2.2.11. Power Failure Port
At the time of the power failure, for enabling a direct call to the extension phone, 1 lines out of 2 lines can be connected to the SLT
port, which provides a switching relay for power failure on the extension port.
port, which provides a switching relay for power failure on the extension port.
4.2.2.12. Noise Rejection
It rejects the extrinsic noise that comes from the outside line with the coils L1A-B that are mounted common between T- R and the
condensers C1A-B that are mounted between T-R.
condensers C1A-B that are mounted between T-R.
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