Citizen CL-E700 Series User Manual page 82

Appendixes
Interfaces
Serial Interface (Option)
Specifications
System Start/stop asynchronous duplex communication
Signal level RS-232C
Baud rate 2400, 4800, 9600, 19200, 38400, 57600, 115200bps
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
1 FG
2 TXD Transmitted data
3 RXD
4 RTS
5 CTS
6 DSR
7 SGND Signal line ground
8-13 NC
14 VCC
15-19 NC
20 DTR Data terminal relay
21-24 NC
82
Signal name
Protective Protective grounding
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
Transmission
when the printer can receive
request
data
Signal line that becomes active
Able to transfer
when other devices can receive
data
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