
Powerful Solutions for Digital Plants
6.3Wiring Connections for RS-232  Communications
The figure below shows the connections between the 1785-KE  module RS-232  port and the serial card I/O termination block.
Serial Card  | 
  | KE   | |||||
Term. Block  | 
  | ||||||
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  | Shield  | 
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  | P1  | P2  | 1  | 
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(GND) | 1  | 9  | 
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  | 7  | (GND)  | 
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  | 13  | (GND)  | 
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(TXD) | 3  | 11  | 
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  | 3  | (RXD) | 
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(RXD)  | 5  | 13  | 
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  | 2  | (TXD)  | 
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(DTR) | 7  | 15  | 
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  | 6  | (DSR) | 
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  | 8  | (DCD) | 
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(DSR)  | 8  | 16  | 
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  | 11  | (DTR)  | 
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  | (RTS) | 
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  | 4  | |
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  | (CTS) | 
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  | 5  | |
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The figure below shows the connections between the 1770-KF2  module RS-232  port and the serial card I/O termination block.
Serial Card  | 
  | KF2   | |||||||
Term. Block  | 
  | ||||||||
  | 
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  | Shield  | 
  | 
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  | |
  | P1  | 
  | P2  | 
  | 1  | 
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(GND) | 1  | 
  | 9  | 
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  | 7  | (GND)  | 
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  | |||||||
(TXD) | 
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  | (RXD) | 
3  | 
  | 11  | 
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  | 3  | ||
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(RXD)  | 5  | 
  | 13  | 
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  | 2  | (TXD)  | 
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(DTR) | 
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  | (DSR) | 
7  | 
  | 15  | 
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  | 6  | ||
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  | (DCD) | 
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  | 8  | |
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(DSR)  | 
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  | (DTR)  | 
8  | 
  | 16  | 
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  | 20  | ||
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  | 4  | (RTS) | 
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  | 5  | (CTS) | 
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MYNAH Technologies  504 Trade Center Blvd.  Chesterfield, MO 63005  Telephone 636 
www.mynah.com
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