B&B Electronics ESP904 - Manual (Page 37)

RS-422 Connections
Manual Documentation Number: ESP904-0504 Appendix B 63
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 Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
Figure 49. 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 50. RS-422 Connection with No Flow Control
RS-422 Connections
64 Appendix B Manual Documentation Number: ESP904-0504
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 Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com