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For German type
CN851A
C850A
4.7
PATH1
L850A
Doorphone_path 1
L851A
C851A
4.7
PATH2
Doorphone_path 2
+24V
FG
CON1
Doorphone_control
3
RL850A
1
10
5,6
CON2
Doorphone_control 4
+5V
+5V
R851A
CALL1
Doorphone_call 5
8.2K
CALL2
R852A
Doorphone_call 6
8.2K
Q851A
+24V
OP1
Door_opener 7
RL851A
1
10
5,6
OP2
Door_opener 8
For German type
CN851B
C850B
4.7
PATH3
L850B
Doorphone_path 1
L851B
C851B
4.7
PATH4
Doorphone_path 2
+24V
FG
CON3
Doorphone_control 3
RL850B
1
10
5,6
CON4
Doorphone_control 4
+5V
+5V
R851B
CALL3
Doorphone_call 5
8.2K
R852B
CALL4
Doorphone_call 6
8.2K
Q851B
+24V
OP3
Door_opener 7
RL851B
1
10
5,6
OP4
Door_opener 8
R867A
1
2
100K
3
R858A
4
5
300
17
R859A
100K
18
R860A
100K
19
R861A
20
300
RELAY-ON (POWER-ON)
DOOR PHONE POWER CONTROL
RELAY-OFF (POWER-OFF) : 0V
Q852A
NORMAL
: 5V
DOOR PHONE CALL
CALL DETECT : 0V
RELAY ON (OPEN)
: 5V
DOOR OPENER
RELAY OFF (CLOSE) : 0V
Q853A
R867B
1
2
100K
3
R858B
4
5
300
17
R859B
100K
18
R860B
100K
19
R861B
20
300
Q852B
Q853B
CODEC
IC852A
DR 8
RO+
RO-
DT 13
PI
11
MCLK
BCLKR 9
BCLKT 12
PO-
-law : 5V
PO+
FSR 7
A-law : 0V
FST 14
TG
16
MU/AN
DRPDN1
PDI 10
TI-
+5V
CODEC POWER CONTROL
VDD 6
TI+
POWER ON : 5V
POWER OFF : 0V
VSS 15
VAG
: 5V
DCONT1
DCALL1
A
DOPEN1
+5V
IC852B
DR 8
RO+
RO-
DT 13
PI
11
MCLK
BCLKR 9
BCLKT 12
PO-
PO+
FSR 7
FST 14
TG
16
MU/AN
DRPDN2
PDI 10
TI-
+5V
VDD 6
TI+
VSS 15
VAG
DCONT2
DCALL2
B
DOPEN2
5V
0V
R875
33
R876
33
IC853
R877
33
4
2
5V
5V
4MHz
8kHz
0V
0V
R878
33
PARALLEL I/O
IC850
R879
33
43
32
P0
D0
42
P1
R880
33
41
31
P2
D1
40
P3
R881
33
Card
38
30
P4
D2
Detection
37
R882
33
P5
36
29
P6
D3
35
R883
33
P7
28
D4
14
R884
33
P8
15
27
P9
D5
16
P10
R885
33
18
26
P11
D6
19
P12
R886
33
20
25
P13
D7
21
P14
23
R887
33
P15
9
3
P16
A1
10
R888
33
P17
11
4
A0
P18
13
P19
8
P20
R889
33
7
44
P21
RD
6
R890
P22
33
5
34
P23
WR
R891
33
12
1
N.C.
CS
22
DDRCSN
N.C.
NORMAL : 5V
+5V
RESET
: 0V
IC851
33
4
2
RST
+5V
17
VCC
24
VCC
39
VCC
2
+24V
GND
+5V
+5V
IC851
5
1
N.C.
3
+5V
IC853
5
1
N.C.
3
CN850
HWS1
26
HWS[1]
HWR1
25
HWR[1]
4MHz
30
4MHZ
CP4
23
CP[4]
MU/AN
1
MU/AN
20
LA[15]
LD0
8
LD[0]
LD1
7
LD[1]
LD2
10
LD[2]
LD3
9
LD[3]
LD4
12
LD[4]
LD5
11
LD[5]
LD6
14
LD[6]
LD7
13
LD[7]
LA2
5
LA[2]
LA1
6
LA[1]
REN
18
REN
WELN
17
WELN
19
DDRCSN
LRSTN
2
LRSTN
24
DDRCD
+24V
3
+24V
4
+24V
+5V
21
+5V
22
+5V
15
GND
GND
16
GND
27
GND
28
GND
29
GND
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