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E. RS-232C SERIAL COMMUNICATIONS CONNECTION DIAGRAM
The Digital operator uses the RS-232C serial communication through connector CN1 to
communicate with the control board. Using the CN1 port on the control board, parameters
can be monitored and updated by a suitable PC programming tool.
The CN1 port is an un-isolated RS-232C with a bad rate of 2400 bps. Contact TECO for
further information.
• The pin definitions of CN1
- 6 pin telephone jack
• Typical connection diagram
App-12
PA 7300
APPENDIX
Pin
Signal Definition
1
LCD/PC selection
2
5V
3
Rx
4
Tx
5
0V
6
Reserved (negative voltage, for LCD display)
T x
R x
R x
T x
6
1
2
5
3
4
C N 1
1
6
7
8
9
2
3
4
5
P C
D B 9
6 5 4 3 2 1
connector
Содержание PA7300 Series
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