X-Ring Application. Advantech EKI-7559MI, EKI-7559SI

The industrial switch supports the X-Ring protocol that can help the network system recover from network connection failure within 10ms or less and make the network system more reliable. The X-Ring algorithm is similar to Spanning Tree Protocol (STP) and Rapid STP (RSTP) algorithm but its recovery time is less than STP/RSTP. The figure below is a sample of X-Ring application.

Note The Ethernet switches with firmware version before v3.0 use the X-Ring function that has the limitation as follows. However, the one with firmware version after v3.0 (included) use the X-Ring Pro function that gets rid of the limitation.

1. The X-Ring is supposed to recover from connection failure within

10ms when the amount of the connected devices of the X-Ring group is less than 50.

EKI-7559MI_SI User Manual 18