Citizen Systems CLP-9001 - Manual (Page 66)

Chapter 9 Specifications
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9.2 Interfaces
1 Serial interface
Specifications
Transfer method: Start stop synchronous dual communication system
Signal level: RS-232C
Baud rate: 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200 bps
Data bits: 7 or 8
Start bits: 1
Stop bits: 1 or 2
Parity: Even, odd, or none
Connector: D-SUB 25PIN 17LE-13250-27(D41)(DDK) or its equivalent
XON/XOFF protocol
XON code output requirements:
• Communication is enabled after power is turned ON.
• Residual capacity of the buffer is 1K bytes or more after sending XOFF code.
• XOFF code is output due to error and printer returns to normal conditions.
XOFF code output requirements:
• Printer is in error.
• Printer is in paused state.
• Receive buffer has less than 128 bytes available.