CITIZEN iDP-3410 - Manual (Page 37)

iDP-3410 User’s Manual
(4) Signal polarity
RS-232C
•
Mark = Logic "1" (-3 V
∼
-12 V)
•
Space = Logic "0" (+3 V
∼
+12 V)
(5) Received data (RXD signal)
RS-232C
•
Mark = 1
•
Space = 0
(6) Reception control (DTR signal)
RS-232C
•
Mark : Data transfer disabled
•
Space : Data transfer enabled