Interface; Rs-232 Serial Interface - Casio UP-250 Technical Manual

Interface

RS-232 Serial Interface

Data transmission:
Synchronization:
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK = -3 to -15 V: Logic 1/OFF
SPACE = +3 to +15 V: Logic 0/ON
Baud rates: 4800, 9600 bps
Data word length:
Parity settings: None, even, odd
Stop bits: 1 or more
Connector: Female D-SUB 25-pin connector or equivalent
NOTES:
Handshaking, data word length, baud rate, and parity depend on DIP switch settings.
Data transmitted from the printer has 1 stop bit (fixed).
Serial (compatible with RS-232)
Asynchronous
7 or 8 bits
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