Hardware Features

The module has:

• two LEDs to indicate the status of the connection to the Ethernet (100 and Link/Act)

• an LED to indicate the module’s internal state and the state of Ethernet

communication (MS or SYS)

• an LED to indicate the state of communications on the Remote I/O network (NS or NET)

• an Ethernet connector

• a power connector

• a 3-pin Phoenix connector to connect to the remote I/O network

A watchdog timer is implemented in the module’s hardware. If the firmware does not

kick the watchdog within the timeout period the watchdog times out and places the

module into a safe fatal failure state.

A jabber inhibit timer is implemented in the module’s hardware. If the network

transmitter is on longer than 150% of the longest network frame time, the transmitter is

forced off and the module is placed into a safe fatal failure state.