Configuring External Interfaces on a C-series Controller

The C-series Controller provides the following interfaces:

Serial port—9600 baud
The serial port is enabled by default. You can use the serial port to connect to a console terminal and perform initial configuration as well as configuration updates.
Two external Gigabit Ethernet interfaces—eth0 and eth1
The eth0 interface is designed to provide access from a network that is behind a firewall. This interface accepts connections from protocols supported by the SRC software. When you configure an SRC component, the specified port is opened on this interface.

The eth1 interface is designed to provide access for applications on an external network, such as the Internet. You can configure a limited number of ports on this interface. By default, no inbound ports are open.
Optional two additional Gigabit Ethernet interfaces—eth2 and eth3
These interfaces require an additional input/output module. You can obtain a module to support either RJ-45 or optical connections.
Two USB interfaces