Interfaces - Citizen CL-S400DT User Manual

Appendixes

Interfaces

This printer is connected to a computer and prints according to
commands sent from the computer.
There are two types of computer interfaces, and these are connected to
devices suited to each type of interface. The printer can also be connected
to a computer by the optional Ethernet and Parallel board.
Serial Interface
Specifications
System Start/stop asynchronous duplex communication
Signal level RS-232C
Baud rate 2400, 4800, 9600, 19200, 38400,57600, 115200 bps
Bit length 7 Bit, 8 Bit
Stop bit 1 Bit, 2 Bit
Parity Odd, even, none
Connector D-SUB 25 PIN
Signal line and pin arrangement
Pin No. Signal code
1 FG Protective grounding
2 TXD Transmitted data
3 RXD
4 RTS Transmission request
5 CTS Able to transfer data
6 DSR
7 SGND Signal line ground
8-13 NC
14 VCC
15-19 NC
20 DTR Data terminal relay
21-24 NC
57
Signal name
Protective grounding
Signal line that transmits data
from the printer to other devices
Signal line that transmits data
Received data
from other devices to the printer
Signal line that becomes active
when the printer can receive
data
Signal line that becomes active
when other devices can receive
data from the printer
Signal line that is active when
Data set relay an external device can interface
with the printer
Shows the ground level of the
signal line
- Not used
+3.3V (FACTORY USE ONLY)
- Not used
Signal line that is active when
an external device can interface
with the printer
- Not used
Function