User manual

2.7 X-Ring Application
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.
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