ABB RED615 Technical Manual page 49

1YHT530004D05 D
615 series
Technical Manual
Client A
Managed Ethernet switch
with RSTP support
GUID-283597AF-9F38-4FC7-B87A-73BFDA272D0F V3 EN
Figure 6: Self-healing Ethernet ring solution
The Ethernet ring solution supports the connection of up to 30
IEDs. If more than 30 IEDs are to be connected, it is recommended
that the network is split into several rings with no more than 30
IEDs per ring. Each IED has a 50-μs store-and-forward delay, and
to fullfill the performance requirements for fast horizontal
communication, the ring size is limited to 30 IEDs.
Section 2
615 series overview
Client B
Network A
Network B
Managed Ethernet switch
with RSTP support
43