Allied-telesis AT-MR912TX Manual de usuario descargar pdf (Pagina 44)

Installation

You are now ready to operate your 100Base-TX network in a stacked hub

conﬁguration as shown in Figure 17 (note that — for clariﬁcation purposes

only — this illustration shows four hubs without stacking brackets. As

previously noted, you can stack up to six hubs)

Figure 17: Stacked Configuration

Stacked/Cascaded Installation

First, recall that the basic 802.3u rule is that, for cascading Fast Ethernet

networks, the maximum number of Class II repeaters in the data path

between any two nodes cannot exceed two.

A stacked/cascaded installation is simply two AT-MR912TX stacked hub

conﬁgurations which are joined through the cascading ports of any two

individual hubs in those stacks. This conﬁguration will support up to 142

network nodes in a single collision domain. Cable lengths to the nodes will

need to be reduced to minimize signal delays in a stacked/cascaded

installation.

SCSI II

stacking

cables

AT-MR901 Stacking

Modules

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 67 68

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Allied-telesis AT-MR912TX Manual de usuario Pagina 44