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B&B Electronics Multi-Interface Ethernet Serial Servers Manual Do Utilizador

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 RS-422 
Connections 
Manual Documentation Number: ESP901-902_4105m 
Appendix B 
77 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
  
Figure 68. 
Loopback Connections for RS-422 
The RS-485 Connections are half duplex, either Receive or Transmit, 
so another half duplex device must be used to check operation. 
 
Figure 69. 
RS-422 Connection with No Flow Control 
RS-422 Connections 
78 
Appendix B 
Manual Documentation Number: ESP901-902_4105m 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com 
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com