Electrical Characteristics - Citizen iDP-3310 User Manual

7.3.6 Electrical Characteristics

(1) RS-232C Circuit
Input (RD, DSR)
Output (DTR, TD)
DTR
[Printer Side]
Equivalent MAX232
Equivalent MAX232
Mark=(-8V): At Busy
Space=(+8V): At Ready
[Host Side]
RD Mark=(-8V): Stop bit
Space=(+8V): Start bit
TD Mark=(-8V): 1
Space=(+8V): 0
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