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Front
Panel
JACK1-2
-15V
H
Pulse
Data Comm.
L
Trans.
Circuit
[A/DPITS Circuit]
Current Supply
Tip
Ring
Hook Detection
Ring Trip Detection
[Analog Circuit]
H
L
EXT #2 (Same as EXT #1)
Tip
Ring
JACK3-4
H
L
EXT #3 (Same as EXT #1)
Tip
Ring
H
L
EXT #4 (Same as EXT #1)
Tip
Ring
JACK5-8
-15V
H
Pulse
Data Comm.
L
Trans.
Circuit
[A/DPITS Circuit]
H
EXT #6 (Same as EXT #5)
L
H
EXT #7 (Same as EXT #5)
L
H
EXT #8 (Same as EXT #5)
L
2
DOOR
CODEC
PHONE
[Doorphone Circuit]
DOOR
OPENER
EXT.
RELAY
2nd.
RINGER
[ Door Opener Circuit]
RELAY
ISDN1
SX1,SX2,
ISDN I/F IC
4
SR1,SR2
Trans
(S)
7.68MHz
ISDN2
SX1,SX2,
SR1,SR2
4
Trans
ISDN I/F IC
7.68MHz
(S/T)
[ISDN Block]
-15V +24V
ISDN3
4
TXA [0-7], TXB [0-7], RXI [0-7]
PAL
25Hz Bell
4
switch
PAYTONE[1-4]
CODEC
8
Analog
DTMF
EXT #1
Reciver
switch
8
Analog
DTMF
switch
Reciver
[DTMF Receiver Circuit]
LCT [1-8]
EXT #5
C2M
CP[2]
S0CSN [0]
HWS [1], HWR [1]
1.536MHz
LA [1-8]
1.536MHz
LD [0-7]
ICLK
S0CSN [1]
HWS [1], HWR [1]
LA [1-8]
LD [0-7]
ICLK
S/T [1]
24
Gate
16kHz Paytone
Array
2
HWS2, HWR2
C2M
4
CP [0-3]
CPU i/f
TSW (128ch)
PCM Timing Gen.
STD[1], ACK[1], SD[1]
3
3 Person's Conf.
UDSN, LDSN, RWN,
A/D PITS i/f
DTACKN, PCLK,
SLT i/f
HALTN, LRSTN
3
STD[2], ACK[2], SD[2]
DTMF/Tone Gen.
LA [1-23]
HDLC Controller
RTC
LD [0-15]
Parallel I/O Port
Timer
RAMCS0N
WELN,REN
RESET Circuit
+24V Detection
2
HWS1, HWR1
C2M
CCP0
RESET Switch
[Expansion Block]
LED
2
HWS1,HWR1
DREADY
DHOOK
DBUSY
DOPEN
ERELAY
SRELAY
PAL
Dec.
512KHz S0CLK [0]
3
512KHz S0CLK [1]
3
512KHz S0CLK [2]
INTN, IFH[1], REN, WELN, LRSTN
8
8
16
16
16
16
4Mbit
4Mbit
16Mbit
16Mbit
4Mbit
4Mbit
SRAM
Flash
Flash
Flash
Flash
SRAM
ROM
ROM
ROM
ROM
CLEAR Switch
CP [3], LRSTN, UCDCSN, DDRCSN, USBCSN, CD, MU/AN
[Main Block]
INTN, IFH [1], REN, WELN, LRSTN
Bell
Trans.
25Hz Pulse
Bell Amp
+5V
+24V
Power
DC-DC
Supply
-15V
Converter
Unit
CPU
MC68302
(16bit)
CPU Core
Internal RAM
Serial DMAC
SCC1,2
RS232C
RS232C Port
Driver
EXT. Music
CODEC
Paging
[Connector
for UDC Option]
LA1 LA8
LD0 LD7
WELN, REN
C2M
+5V
GND
[Connector
for Doorphone]
LA [1-2, 14-15]
LD [0-7]
WELN, REN
C2M
+5V
+24V
GND
[Connector
for ISDN Option]
LA [1-8]
LD [0-7]
S0CLK [2]
ICLK
S/T [2]
7.68MHz
HWS[1], HWR[1]
+5V
+24V
Main Board
-15V
GND
AC230V
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