Specifications

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TM-U590 series
Specification
(STANDARD)
2. CONFIGURATION
2.1 Interface
2.1.1 RS-232 serial interface
2.1.1.1 Specifications
Data transmission: Serial
Synchronization: Asynchronous
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK = -3 to -15 V: Logic "1"
SPACE = +3 to +15 V: Logic "0"
Stop bits: 1 or more
Connector (printer side): Female DSUB-25 pin connector
The data word length, baud rate, and parity depend on the DIP switch settings. (Refer to Section
3.3.3.) The stop bit for the printer side is fixed to 1.
2.1.1.2 Switching between online and offline
The printer does not have an online/offline switch. The printer goes offline:
1) Between when the power is turned on (including reset using the interface) and when the
printer is ready to receive data
2) During the self-test
3) When the cover is open
4) During paper feeding using the FORWARD/REVERSE button
5) When an error has occurred
6) When the power is out of range temporarily.