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RS-422 Connections
Manual Documentation Number: ESP901-902_0508m 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