Physical Locations
The 171 CBU 78090 processor includes both a configurable RS232/RS485 serial port and a fixed RS485 serial port. The 171 CBU 98090 and 171 CBU 98091 processors include a single configurable RS232/RS485 serial port.
The location and type of serial port depends on the processor:
Serial Port |
Processor |
Serial Port Type |
|---|---|---|
1 |
171 CBU 78090 |
RS485 fixed |
2 |
171 CBU 78090 |
RS232/RS485 configurable |
171 CBU 98090 |
RS232/RS485 configurable |
|
171 CBU 98091 |
RS232/RS485 configurable |
Each serial port features an RJ45 female connector. A serial port configured for RS485 supports 2-wire communications.