Documentation Number: ESP902-2303 Manual
Appendix D
D-1
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
APPENDIX D: RS-485 CONNECTIONS
RS-485
Signal Name
Direction
RS-485 DB9M
Pin
Data B (+)
In/Out
DATA B (+)
3
Data A (
−
)
In/Out
DATA A (
−
) 4
Signal Ground
---
GND
5
Refer to Chapter 2 for more information
.
