KX-NCP1173XJ (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 41

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     KX-NCP1173XJ
13 Exploded View and Replacement Parts List
13.1. IC Data
13.1.1. IC100 (ASIC)
Pin No.
Pin name
Signal name
I/O
ACT
Description
Remarks
149
P07
VER5
I
L
RAM (H: 2Mbit, L: 1Mbit)
148
P06
VER4
I
L
Card distinguishing reserve
147
P05
VER3
I
L
146
P04
VER2
I
L
For hard version management
For the first time, 0
145
P03
VER1
I
L
144
P02
VER0
I
L
143
P01
PORT1
I
L
Number of ports: 8
142
P00
PORT0
I
H
158
P17
DTH7
O
H/L
157
P16
DTH6
O
H/L
156
P15
DTH5
O
H/L
155
P14
DTH4
O
H/L
154
P13
DTH3
O
H/L
153
P12
DTH2
O
H/L
152
P11
DTH1
O
H/L
151
P10
DTH0
O
H/L
168
P27
ACALM
O
H
AC interruption detection
167
P26
PFRLY
O
L
Power-failure direct-dial switching
166
P25
VREF1
O
H/L
PT I/F setting
01...Manufacture diagnosis, 10...Normal
165
P24
VREF0
O
H/L
164
P23
LED_G
O
L
Green LED lit / CS_DELAY output
163
P22
LED_R
O
L
Red LED lit
162
P21
BELL CNT
O
H
Bell circuit stop
161
P20
CS_DELAY_CONT
O
L
CS Delay control
107
P37
DTL7
O
H/L
176
P36
DTL6
O
H/L
175
P35
DTL5
O
H/L
174
P34
DTL4
O
H/L
173
P33
DTL3
O
H/L
172
P32
DTL2
O
H/L
171
P31
DTL1
O
H/L
170
P30
DTL0
O
H/L
199
P47
TOE7
O
H
Port 7 DTMF R. Output enable
Used as TOE
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