18
CTI Janus Programmable Automation Controller IOG
2.9
Remote I/O Port
This DB-
9 connector (labeled ‘Remote I/O’) provides the RS
-485 serial interface to the legacy 505/2500 Remote
I/O network. The pinout for this connector is shown below:
2.10
Profibus DP Port
On models where the controller can be configured as Profibus master, this DB-
9 connector (labeled ‘
Profibus-
DP’
)
provides the RS-485 interface to the Profibus-DP network. The pinout for shown below. The cable shield is
connected to ‘Chassis Ground’. Pins 5
-6 are used for the bias circuit.