CBM-920User’s Manual
27 CITIZEN
6.2 Connector Connecti on Diagram
PIN SIGNALNAME PIN SIGNAL NAME
1 ~ 8 N.C (not connected) 15 GND
9R×D16 FG
10 T×D17 +5V(forcircuit)
11 DTR 18 GND
12 PE 19 +5V(formechanism)
13 FAULT 20 GND
14 RESET
6.3 Explanationof Input/Output Signals
1) I/OSignals into Printer (RS-232C)
•T×D (TRANSMITDATA)
Serialtransmitdata signals.
•R×D (RECEIVEDATA)
Serial received data signals.
•DTR (DATATERMINAL READY)
Whenthis signal is in Ready (space),send data ora command.
If sending takes pla ce in Busy (mark), overrun error is occur red.
Even in printing, data can be sent into theinput buf fer. If this signal is in Ready.
Further, Busy take s place also on supply of power, in test pr inting, on-line status or on occur rence of
resetting.