Citizen Systems CBM-910 Type II Description of Input/Output Signal, DTR Data Terminal Ready

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6.3Description of Input/Output Signal

(1)Input signal

1)TD (TRANSMIT DATA)

Serial transmission data signal.

2)RD (RECEIVE DATA) Serial receive data signal.

3)DTR (DATA TERMINAL READY)

Input command or data while this signal is in ready state (space). Data input while the signal is BUSY (mark) will cause an overrun error to occur. Data can be provided to the input buffer even if the printer is printing. Busy state may also occur when power is applied, or during test printing, on-line, or when the printer is reset.

4)RESET (L) (TTL level)

Signal for resetting the whole printer. Reset is activated with L level of 4 ms or more.

5)RESET (RS-232C level)

Signal for resetting the whole printer. Reset is activated with Space of 4 ms or more.

6)FG (FRAME GND) Case ground.

7)GND

Signal ground for the circuit.

(2)Data configuration

Mark

Space

t

b0, b1, b2 • • • • •

(1)

(2)

(3)

(1)Start bit (1 bit)

(2)Data bit (8 bits)

(3)Stop bit (more than 1 bit)

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Contents DOT Matrix Printer Weee Mark Page Declaration of Conformity General Precautions Safety Precautions -WHICH should be Strictly Observed Page Precautions for Installation Precautions for Handling Table of Contents External Dimensions Introduction FeaturesAccessories Type AC AdapterSpecifications CBM-910II-24 CBM-910II-40External Appearance and Part Descriptions External AppearancePart Descriptions OFFOperations Connection of the AC AdapterSetting of the Printer Cover Setting Ribbon Cassettes Setting Paper Special Remarks Concerning Paper Self-Printing Function Memory Switch Setting Japan 910JPNUSA = U.S.A Paper-Near-End, Mechanical Alarm, Memory Error General Remarks Parallel Interface Connector Pin AssignmentPin Signal Name Description of Input/Output Signals Electrical Characteristics Serial Interface Pin Signal Name Signal Direction Function RS-232C Host-PrinterDescription of Input/Output Signal DTR Data Terminal ReadyTTL circuit Input Reset Error Detection Receiving Control and BufferingDIP Switch Setting Switch No FunctionFactory Setting Switch No Parity Baud Rate Factory SettingParallel Interface Type List of Control Codes Symbol Code Function CBM910 IDP3110 HexadecimalPrint Control Function Control Code Details Abcd Page Country Character Code TableESC Page FF FF FF FF FF FF For 40-column model 3110 emulation Page Model 123 CR Function Content of Setting Character Code Table Ascii + 910 Emulation International 910 Emulation JapanCodepage PC437 USA, Standard Europe Katakana Codepage PC858 Multilingual Codepage PC860 Portuguese Codepage PC863 Canadian-French Codepage PC865 Nordic Codepage PC852 Eastern Europe Codepage PC866 Russian Codepage PC857 Turkish Codepage WPC1252 Windows Latin1 Codepage PC864 Arabic Codepage PC869 Greek International Character Code Table External Dimensions Page

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