Panasonic KMS1409096CE, Service Manual

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KX-NS500AG
4.3.2. Expansion Unit Mother Board
Fig.5 shows detail block diagram of Mother Board, and each function of Base is described in Table.7.
Table.7 Expansion Unit Mother Board Function Description
4.3.3. SLIC/CODEC (SLC) Block
Refer to Service Manual of KX-NS5173/KX-NS5174.
Device/Function Block Description
PLD1(EXT_PLD) PLD1 controls and monitors SLIC/CODEC LSI of each analog line port.
SLIC/CODEC SLIC/CODEC is exclusive LSI which is used for analog line interface.
8) Line interface power supply
9) Dial pulse detection
10) DTMF receiver / Caller ID generation
11) Bell signal generation
12) Hooking detection / Ringtrip detection
13) 2W/4W conversion
14) CODEC function
Trun k option
Connector
Extension option
Connector
80PIN
CONN
ECT
OR
(CP
U
Int
er
fa
ce)
R J 45
POWER I/F
Connector
Exp
a
nsi
on
bu
s
S LIC/CODEC bus ( S PI)
TDM Hi g h wa y bus
A FE S LIC/CODEC( 2 ch)
A FE
A FE
A FE
A FE
A FE
A FE
A FE
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
S LIC/CODEC( 2 ch)
A C A LM, DC A LM
+40 V , GND
+15 V , GND
R J 45
R J 45
R J 45
PLD1
(E X T_PLD)
F A N I/F
Connector
+15 V , GND
INT( 2 )
DC/DC
+3.3 V , GND
15
1 2V
INT_ S LIC
INT_E X T
INT_CO
F A N_ A LM
R J 45
PFT
R J 45
PFT
PFT1-PFT 2
PFT 2 -PFT3
S LT4
S LT3
Re
l
a
y
To S LT3- S LT4
PFT Rel a y
R J 45
S LT 2
S LT1
Fi g .5 Exp a nsion Unit Mother Bo a rd Bloc k Di ag r am