2 Installation and Commissioning, IRC5
2.5.4. Connection to serial channel connector
573HAC021313-001 Revision: K
© Copyright 2004-2008 ABB. All rights reserved.
Conversion of the RS232 channel
The RS232 channel can be converted to RS422 full duplex with an optional adapter (Option
714-1).
The RS422 enables a more reliable point to point communication (differential) over longer
distances, from RS232 = 15m to RS422 = 120m.
Action Info/Illistration
1. Connect the adapter to the serial channel
connector.
For computer unit DSQC639 a cable is
needed between the serial channel
connector and the adapter.
xx0600003075
•A: cable
• B: adapter
Continued