KX-NS0180X - Panasonic PBX Service Manual (repair manual). Page 6

6

Functional Block

Functional contents

Analog External Line Interface 

Number of Ports 

2 ports

LCOT Interface 

Dial pulse signal transmission function
DTMF signal transmission function
Polarity reversal detecting function
Bell detection function
End-call signal detection function
2W/4W Conversion function
Surge Protection function
CODEC (PEB2466) function

• CODEC function
• Power down function
•

µ/A law switching function

• Test function (Loop back, tone generation)
• Programmable digital filter function
• Serial interface function
• PIO function

Caller ID ASIC function

• FSK Receiver function
• DTMF Receiver function

Extension Interface 

Number of Ports

 2 ports

SLT Interface 

SLIC (PEF4365T) /CODEC (PEB3265F) function

• -52V 26mA Feeding function
• Dial-pulse signal detecting function
• DTMF signal detecting function
• Bell signal issuing function
• Hook detecting function
• 2W/4W converting function
• CODEC function
• Test function (Loop back, Tone generation)
• Programmable digital filtering function
• Serial interface function
• Caller ID(FSK) generator function

Surge protective function

On-board Ringer

20/25Hz 65Vrms
Phase control (Three-phase / Four-phase)

On-board DC/DC Power 

Input +15V
Output +5V, +3.3V
Output -55V, +80V

Power Failure Transfer 

Supports 1 line

CO1 - EXT1

External Interface Connector 

External Line interface 

RJ45: 2 port  (CO1/CO2)

SLT Interface 

RJ45: 1 port  (EXT1/EXT2)