2. CONNECTIONS
27
2.4 Notice for network connection
With a hub(s), FELCOM500/FELCOM250 can establish a network configuration. If the hub(s) is
connected in loop form, the FELCOM500/FELCOM250 may not function normally.
Never connect as follows:
Note: If you install a switching hub that does not have an automatic function to distinguish straight/
cross (MDI/MDI-X) connections, you will need to select a proper cable:
• Use a straight connection cable for an MDI to MDI-X connection.
• Use a cross connection cable for an MDI to MDI or MDI-X to MDI-X connection.
Generally, it is advisable to use an auto MDI/MDI-X switching hub.
Communication unit
FB-2000
LAN
Hub
LAN
LAN
LAN
[Hub 1 set]
[Hub 2 sets] [Hub 3 sets]
Communication unit
FB-2000
Communication unit
FB-2000
Hub
Hub
Hub
Hub
Hub
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