ABB UniGear Series, Engineering Manual

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5 6 1VLG5 00007 E
Managed Ethernet switches
A switch is an Ethernet device that filters and forwards data packets between the LAN seg-
ments. The switches operate on the data link layer and occasionally the network layer.
Packets that arrive on a port are analysed for errors and only forwarded onto the port that
has a connection to the destination device.
The AFS family offers many features which are required in the utility environments, including
fast protection schemes, redundant power supply and alarm contacts, and enables the step-
wise introduction of Smart grid applications. Recommended types of managed Ethernet
switches are shown in table below.
Table 6: Recommended Managed Ethernet switches overview for UniGear Digital
Type
Manufacturer Assembly Number
of ports
HSR
Redbox
PRP
Redbox
RSTP SNTP PTPv2 Station
bus
Process
bus
AFS670 ABB 19' up to 24 No No Yes Yes No Yes No
AFS675 ABB 19' up to 28 No No Yes Yes No Yes No
AFS677 ABB 19' 16 No No Yes Yes Yes Yes Yes
AFS660B ABB DIN Rail 8 No No Yes Yes No Yes No
AFS665B ABB DIN Rail 10 No No Yes Yes No Yes No
AFS660C ABB DIN Rail 6 Yes Yes Yes Yes Yes Yes Yes
AFS660S ABB DIN Rail 6 Yes Yes Yes Yes Yes Yes Yes
AFS665S ABB DIN Rail 11 Yes Yes Yes Yes Yes Yes Yes
RSG2100 Siemens 19' up to 19 No No Yes Yes No Yes No
RST2228 Siemens 19' Up to 28 No No Yes Yes Yes Yes Yes
RSG2300 Siemens 19' up to 32 No No Yes Yes No Yes No
RS900 Siemens DIN Rail up to 9 No No Yes Yes No Yes No
RS900G Siemens DIN Rail 10 No No Yes Yes No Yes No
RS950G Siemens DIN Rail 3 Yes Yes Yes Yes Yes Yes Yes