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Comparator contact ratings
Maximum contact voltage 100VDC
Maximum contact current 100mADC
Maximum contact resistance 20 Ω
External contact input
Minimum contact time 100 msec
+5V
FG
RXD
TXD
RTS
CTS
DSR
SG
FG
TXD
RXD
RTS
CTS
DSR
SG
1
2
3
4
5
6
7
Balance (DCE)
Of DOS/V type
(D-Sub9)
Connector shell
Pin 3
Pin 2
Pin 7
Pin 8
Pin 6
Pin 5
Personal computer (DTE) example
Balance interior
Use a shielded
cable.
(Cable shield)
When a photocoupler is used
(Upon switch-ON, make the voltage
between the input terminal and the
SG terminal 0.2V or less)
When a switch is used
Use a shielded cable.
(Cable shield)
PRINT
RE-ZERO
SG
18
(Input terminal)
FG
CPU
input
terminal
18 or 19
SG 7
(1)
19 (Input terminal)
7
(2)
18 or 19
SG 7
820
Ω
5V
22k
Ω
820
Ω
5V
22k
Ω
Balance interior
*When OP-04 is installed
in the AD-4212A
series balance.
(Cable shield)
Use a shielded
cable.
12 (When 5-level
comparison is used)*
9 (When 5-level
comparison is used)*
OK
OK
25
HH
HI
HH
HI
23
LL
LL
LO
LO
16
21
COM
1
FG
Balance interior