Chapter 2 Operating Principles
2-4. Interface
2-55
CL-E720DT
2-4-3. Serial Interface (Option)
(1)
Specifications
System
Start/stop asynchronous full duplex communication
Signal level
RS-232C
Baud rate
2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Data length
7 bits, 8 bits
Stop bit
1 bit, 2 bits
Parity Odd,
even,
none
Connector
D-SUB 225AE25FGTBBA3 25-pin (COXOC)
(2)
Signal line and pin assignment
Pin No.
Signal
Abbr.
Signal name
Function
1
FG
Frame ground
Protective grounding
2
TXD
Transmit Data
Signal line that transmits data from the printer to
the host
3
RXD
Receive data
Signal line that transmits data from the host to
the printer
4
RTS
Request To Send Signal line that is active when the printer can
receive data from the host
5
CTS
Clear To Send
Signal line that is active when the host can
receive data from the printer
6
DSR
Data Set Ready
Signal line that is active when the host can
interface with the printer
7
SGND
Signal ground
Signal grounding line
8-13,
15-19
NC -
Not
used
14
VCC
+5V
(Factory use only )
20 DTR
Data
Terminal
Ready
Signal line that is active when the printer can
interface with the host
21-25 NC
-
Not
used
Summary of Contents for CL-E720DT
Page 1: ...Technical Manual CL E720DT Direct Thermal Barcode Label Printer ...
Page 5: ...Chapter 1 Specifications 1 1 CL E720DT CHAPTER 1 SPECIFICATIONS ...
Page 15: ...Chapter 2 Operating Principles 2 1 CL E720DT CHAPTER 2 OPERATING PRINCIPLES ...
Page 75: ...Chapter 3 Disassembly and Maintenance 3 1 CL E720DT CHAPTER 3 DISASSEMBLY AND MAINTENANCE ...
Page 119: ...Chapter 4 Troubleshooting 4 1 CL E720DT CHAPTER 4 TROUBLESHOOTING ...
Page 131: ...Chapter 5 Parts Lists 5 1 CL E720DT CHAPTER 5 PARTS LISTS ...
Page 159: ...Chapter 5 Parts Lists 5 29 CL E720DT DRAWING NO 7 Unit Opepane Rev 0 ...
Page 162: ...Chapter 5 Parts Lists CL E720DT 5 32 DRAWING NO 8 Accessories Rev 0 3 2 1 1 1 2 1 3 ...
Page 164: ...Chapter 6 Circuit Diagrams 6 1 CL E720DT CHAPTER 6 CIRCUIT DIAGRAMS ...
Page 183: ...Appendices AP 1 CL E720DT APPENDICES ...
Page 186: ...Appendices A Mounting Diagrams CL E720DT AP 4 2 Solder side ...