KX-NCP1174XJ (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 5

5

This card is plugged into a free slot on the NCP500/1000 systems and randomly connects up to 16 SLT devices.
This card sends Caller ID signal to extension ports.

Functional Block

Functional contents

Extension Interface

Number of Ports

16 ports

SLT Interface

+30V 30mA Feeding function
Dial-pulse signal detecting function
DTMF signal detecting function
Bell signal issuing function
Hook detecting function
Ringtrip detecting function
2W/4W converting function
Surge protective function
4ch CODEC function

• Test function (Loop back, Tone generation)
• Programmable digital filtering function
• Serial interface function
• PIO function

DTMF Receiver

16 lines for each port

On-board Ringer

20/25Hz 75Vrms
Phase control (Three-phase / Four-phase)

On-board DC/DC Power Supply

Input +15V
Output +5V, +3.3V
Input +40V
Output for Bell ringing relay: +160V, -100V

ASIC

EC bus interface function
H.100 bus interface function, Digital PLL function
Local bus interface function
Time switch function, Gain controlling function, FIFO/DPRAM function
Intelligent PIO function

LED Display Circuit

Card status indicating LED: Two colors (Red/Green)

External Interface Connector

Extension interface

RJ45 16 port

Caller ID Generator

Mounted Number

 4

Supported Standard

 ITU-T V.23 (1200bps) FSK
 Bell202 (1200bps) FSK