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Introduction
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The NetStacker II 12 port unmanaged hub provides 12 twisted pair ports. The
24 port managed hub provides 24 twisted pair ports. In addition, both hubs
offer an expansion slot for a 100Base-FX interface so the user can slide a fiber-
optic module into the rear panel. A slot for a 100Base-FX interface is also
provided on the front panel, for use when the management module has been
installed in the rear panel slot.
Both hubs automatically detect the speed (10Mbps or 100Mbps) of the devices
they are connected to. For additional expansion, each hub provides an Uplink
push-button for the 12th port, which can be cascaded to another hub by means
of straight through cable.
The NetStacker II hubs can be stacked up to 8 units high and connected by
means of the “Stack Connection In” and “Stack Connection Out” ports on the
rear panel. In addition, one of the hubs in the stack may be equipped with a
slide-in management module. The entire stack requires only one managed hub
for all of the stacked devices to be managed. Each dual speed hub has its own
ID, which is auto-detected and auto-configured. You do not have to configure
the hub ID yourself.
Either model hub can be placed on a tabletop or rack mounted. With
unmatched flexibility, the hubs ensure operation in any LAN environment,
regardless of size. The hubs provide the solutions that users require for their
complex networks.
Figure 1-1 NetStacker II 12 port hub front panel
Figure 1-2 NetStacker II 24 port hub front panel
123456789101112
MII
Module
Slot
NS2012
Uplink
Normal
Uplink
100M
10M
COL
Power
NetStacker II
Hub ID Number
1
23
4
5
6
7
8
9
10 11
12
1
23
4
5
6
7
8
100Mbps
10Mbps
Stackable Dual-Speed Hub
13 14 15 16 17 18 19 20 21 22 23 24
123456789101112
MII
Module
Slot
NS2024
Uplink
Normal
Uplink
100M
10M
COL
Power
NetStacker II
Hub ID Number
1
23
4
5
6
7
8
9
10 11
12
1
23
4
5
6
7
8
13
14 15
16
17
18
19
20
21
22 23
24
100Mbps
10Mbps
100Mbps
10Mbps
Stackable Dual-Speed Hub
SHBBook Page 2 Wednesday, March 3, 1999 8:03 PM