Fast EtherHub 3500 System User’s Guide
3-12 Setting Up Network Connections
Connecting Remote Stacks
Fast EtherHub stacks can be connected by using the
SmartExtender Modules. For example, you can connect two
stacks by running a cable from the extender module in one stack
to any station port in a remote stack. When using twisted-pair
cable, the maximum cable length is 100 meters. Also note that
when you connect directly to a repeater bus in this manner, the
transmission mode is limited to half duplex.
You can connect stacks over an even greater distance if you run
fiber optic cable between SmartExtender Modules in both stacks.
When you connect to switching ports at both ends of the cable, the
transmission mode is automatically set to full duplex, allowing
you can run a fiber optic link up to 2 kilometers. However, if you
must operate at half duplex, then the maximum separation
between stacks is 412 meters .
ETHERHUB3500 HUB
STACK 1
STACK 2
STACK 1
STACK 2
STACK 3
STACK 3
ETHERHUB3500 HUB
ETHERHUB3500 HUB
ETHERHUB3500 HUB
ETHERHUB3500 HUB FlexBus 3500 Cable
Remote Stack Link
Remote Stack Link
(Up to 100 meters with twisted-pair cable)
(Up to 2 kilometers with fiber optic cable)
ETHERHUB3500 HUB
Figure 3-8 Connecting Remote Stacks