AL-2020/2035/2040/2050/2060 CIRCUIT DIAGRAM 14 - 26
#PB_DATA7
#PB_DATA4
#PB_DATA6
#PB_DATA5
PB_NC
S
1
(PB_NAE0)
(MDM_IRQ)
(PB_NWE)
(PB_NOE)
MCU_D4
MCU_D3
MCU_D2
MCU_D1
MCU_D6
MCU_D7
MCU_D0
MCU_D5
MODEM_IN
(/RD)
#MDM_IRQ
MCU_INT
MCU_
n
C
S
(/FAX_R
S
T)
D1
D0
D3
D2
D7
D5
D6
D4
PB_DATA5
PB_DATA7
PB_DATA6
PB_DATA3
PB_DATA0
PB_DATA2
PB_DATA1
#PB_DATA2
PB_DATA4
#PB_DATA1
#PB_DATA3
#PB_DATA0
#PB_ADDR2
#PB_ADDR1
#PB_ADDR0
#PB_ADDR4
PB_ADDR5
PB_ADDR6
#PB_ADDR7
#PB_ADDR5
PB_ADDR1
#PB_ADDR6
#PB_ADDR3
PB_ADDR2
PB_ADDR3
PB_ADDR7
PB_ADDR4
PB_ADDR0
D0
PB_DATA3
D1
PB_DATA0
PB_DATA5
PB_DATA7
D5
(MDM_IRQ)
PB_DATA4
PB_DATA2
M
S
U_
S
T1
PB_DATA6
D4
D3
D2
D6
PB_DATA1
D7
MCU_D6
MCU_D4
MCU_D0
MCU_D2
MCU_
n
C
S
#PB_DATA7
#PB_DATA5
#PB_DATA3
#PB_DATA1
#PB_ADDR7
#PB_ADDR5
#PB_ADDR3
#PB_ADDR1
PB_NC
S
1
(PB_NWE)
(/FAX_R
S
T)
MODEM_IN
MCU_D7
MCU_D5
MCU_D3
MCU_D1
(/RD)
MCU_INT
#PB_DATA6
#PB_DATA4
#PB_DATA2
#PB_DATA0
#PB_ADDR6
#PB_ADDR4
#PB_ADDR2
#PB_ADDR0
(PB_NAE0)
(PB_NOE)
#MDM_IRQ
VCC3
VCC3
VCC3
24V
EN5V
VCC3
PGND
MDM_IRQ
(9)
PB_NC
S
1
(9)
PB_DATA[7:0]
(9,10)
M
S
U_
S
T1
(3)
D[15
..
0]
(1,2,3,4)
MODEM_IN
(9)
/C
S
5
(1)
/FAX_R
S
T
(5)
/RE
S
_FAX
(1)
(/RD)
(5)
(PB_NWE)
(5)
(PB_NOE)
(5)
(PB_NAE0)
(5)
PB_ADDR[7:0]
(9,10)
To
Modem
PWB
C323
NM
C329
NM
BR90
33JX4
1
2
3
4
8
7
6
5
CP13
0603
S
FF150FM/32-2
L16
0J
<1608>
C327
10KJ
R315
10KJ
TP903
CP11
0603
S
FF150FM/32-2
R311
1KJ
D46
KD
S
226
2
1
3
C321
10KJ
C328
NM
BR91
33JX4
1
2
3
4
8
7
6
5
BR88
33JX4
1
2
3
4
8
7
6
5
BR92
33JX4
1
2
3
4
8
7
6
5
R317
1KJ
C325
NM
R313
100J
C326
10KJ
TP904
D47
KD
S
226
2
1
3
BR89
33JX4
1
2
3
4
8
7
6
5
C320
10KJ
BR93
33JX4
1
2
3
4
8
7
6
5
TP725
CP12
0603
S
FF150FM/32-2
C337
NM
R325
NM
CN5
B40B-PNDZ
S
-1(LF)(
S
N)
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
C333
10KJ
C324
NM
C335
NM
C102
0
.
1U
C334
NM
C330
10KJ
C331
NM
C336
NM
C378
NM
L14
0J
<1608>
R391
100J
C322
10KJ
C332
10KJ
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
MCU
PWB
(Modem
I/F
Connector)
(AL-2050/2060)
13/16
Summary of Contents for AL-2020
Page 217: ...Memo ...