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VCC
CC-100nF/10
C2
CC-100nF/16
RTS1#
CTS1#
DTR1#
DSR1#
DCD1#
RI1#
TXD1
RXD1
VCC
CC-100nF/10
C7
CC-100nF/16
RTS2#
CTS2#
DTR2#
DSR2#
DCD2#
RI2#
TXD2
RXD2
ETX-A61
ETX-A61 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2 - Author: S.B. - Reviewed by G.G. Copyright © 2017 SECO S.r.l.
VCC
C1
C3
CC-100nF/10
U1
17
13
V-
V+
16
11
VCC
C2-
VCC
15
12
C2+
C1+
7
14
T1IN
C1-
8
2
R1OUT
T1OUT
6
9
T2IN
R1IN
5
3
R2OUT
T2OUT
26
4
R3OUT
R2IN
22
27
R4OUT
R3IN
20
23
T3IN
R4IN
19
1
R5OUT
T3OUT
21
18
T4IN
R5IN
24
28
EN
T4OUT
10
25
GND
SHDN
ADM211EARS
VCC
C5
C6
U2
CC-100nF/10
17
13
V-
V+
16
11
VCC
C2-
VCC
15
12
C2+
C1+
7
14
T1IN
C1-
8
2
RTS2A
R1OUT
T1OUT
6
9
CTS2A
T2IN
R1IN
5
3
DTR2A
R2OUT
T2OUT
26
4
DSR2A
R3OUT
R2IN
22
27
DCD2A
R4OUT
R3IN
20
23
RI2A
T3IN
R4IN
19
1
TXD2A
R5OUT
T3OUT
21
18
RXD2A
T4IN
R5IN
24
28
EN
T4OUT
10
25
GND
SHDN
ADM211EARS
P1
C4
5
CC-100nF/16
RTS1A
4
CTS1A
DTR1A
DTR1A
3
DSR1A
TXD1A
DCD1A
2
RI1A
RXD1A
TXD1A
1
RXD1A
DCD1A
DB9 MALE CONNECTOR
P2
C8
5
CC-100nF/16
4
DTR2A
3
TXD2A
2
RXD2A
DCD2A
1
DB9 MALE CONNECTOR
10
9
RI1A
8
CTS1A
7
RTS1A
6
DSR1A
11
10
9
RI2A
8
CTS2A
7
RTS2A
6
DSR2A
11
37
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