Interfaces - Citizen OPTICAL MOUSE User Manual

Interfaces

This printer is connected to a computer and prints according to commands
sent from the computer.
There are three 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 wireless LAN.
Serial Interface
Specifications
System Start/stop asynchronous duplex communication
Signal level RS-232C
Baud rate 2400, 4800, 9600, 19200, 38400,57600, 1 15200bps
Bit length 7Bit, 8Bit
Stop bit 1Bit 2Bit
Parity Odd, even, none
Connector D-SUB 25PIN
Signal line and pin arrangement
Pin No. Signal code Signal name
1 FG Protective
grounding
2 TXD Transmitted data Signal line that transmits data from the
3 RXD Received data
4 RTS Transmission
5 NC
6 DSR Data set relay
7 SGND Signal line
8-19 NC
20 DTR Data terminal
21-24 NC
25 VCC
45
Function
Protective grounding
printer to other devices
Signal line that transmits data from other
devices to the printer
Pull up to +12V through 3.3kΩ
request
------ Not used
Signal line that is active when an external
device can interface with the printer
Shows the ground level of the signal line
ground
------ Not used
Signal line that is active when an external
relay device can interface with the printer
------ Not used
+5V (FACTRY USE ONLY )
Appendixes