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7.4 External Control Terminal
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5 V (open)
0 V (short)
Hold start
Comparator hold time
400 ms or more
Hold end
Comparator Hold
5 V (open)
0 V (short)
Print order is out put to
printer during this term.
Over 300 ms
Data Output
74HC14
+5 V
Input terminal
D.GND
10 kΩ
1kΩ
0.1 μF
Internal Circuit
NOTE
(3) Comparator output hold (COMPHOLD1、COMPHOLD2)
Comparator operation is resumed when the logic signal is 5V within 200ms.
While relay output is on hold, comparator decisions are not made.
(4) Data output (Manual printing) (PRINT terminal)
(5) Internal circuit of the external control terminal
Always use the D.GND terminal (pin 25) for the common of external control
terminal.