Panasonic KX-NS0180X Service Manual ▷ View online
21
KX-NS0180X
• +80V/-55V Converter
Circuit configuration of -55V converter is same as +80V.
In event of an over current in the 15V input line, due to a short circuit in the MOSFET Q704/Q705 switches, power supply is
shut down.
In event of an over current in the 15V input line, due to a short circuit in the MOSFET Q704/Q705 switches, power supply is
shut down.
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KX-NS0180X
5 Location of Controls and Components
5.1.
Names and Locations
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KX-NS0180X
6 Installation Instructions
6.1.
Physical Trunk and Extension Cards
6.1.1.
SLC2/LCOT2 Card
Function
A combination card including:
•2 analogue trunk ports with Caller ID (FSK/FSK with Call Waiting Caller ID [Visual Caller ID]/DTMF). One port is a power fail-
ure transfer (PFT) port.
•2 extension ports with Caller ID (FSK) for SLTs.
Accessories and User-supplied Items
Accessories (included): Screws x 4
User-supplied (not included): RJ45 connector, Twisted pair cable
Pin Assignments
RJ45 Connector for Trunk Use
RJ45 Connector for Single Line Telephone Extension Use
No.
Signal Name
Function
1-3
Reserved
—
4
R
Ring
5
T
Tip
6-8
Reserved
—
No.
Signal Name
Function
1-2
Reserved
—
3
RB
Ring B
4
RA
Ring A
5
TA
Tip A
6
TB
Tip B
7-8
Reserved
—
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KX-NS0180X
7 Troubleshooting Guide
7.1.
Power Supply Part
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