Intel 220T - Manual (Page 11)

9
Stacking Hubs
Why Stack?
The Express 220T and 210T hubs use the same connectors so they can be
stacked together or stacked in combination with the Express 10/100
Stackable hub. By stacking Intel hubs you can:
• increase the number of available ports, yet still treat the stack as a
single repeater.
• use a single Management Module to manage all hubs in the stack.
• use the 220T’s internal bridge so 10Mbps and 100Mbps segments can
communicate.
Guidelines
• You must use an Intel Cascade Cable to stack the hubs. Do not daisy-
chain hubs operating at 100Mbps with UTP cable.
• A stack can consist of any combination of 220T, 210T, or
Express 10/100 hubs (12- or 24-port versions).
• You can stack up to eight hubs.
• When cabled correctly, the top hub in a stack is numbered hub 1.
• If there is more than one 220T hub in a stack, only one bridge is active
at a time. The lowest numbered 220T hub is the active bridge.
• All devices at the same speed are in the same segment. For example, all
devices at 10Mbps are in one segment and all devices at 100Mbps are
in another.
Input
100-120VAC/2.5A
200-240VAC/1.5A
47Hz-63Hz
Redundant Power Supply (RPS)
Input
100-120VAC/2.5A
200-240VAC/1.5A
47Hz-63Hz
Redundant Power Supply (RPS)
Input
100-120VAC/2.5A
200-240VAC/1.5A
47Hz-63Hz
Redundant Power Supply (RPS)
Hub 1
Hub 2
Hub 3
Intel Cascade
Cable (EE200CC)
Express 220T Hub
Intel Cascade
Cable
Can
stack
with
Express 210T Stackable Hub and
Express 10/100 Stackable Hub
(12- or 24-port versions).
+
Colls 10Mbps Colls 100Mbps RPS
Power
Intel Express 220T
Stackable Hub
Bridged Managed Enable/Disable
Bridging Status
Class I
Left (Orange/Green)
Orange = 10Mbps
Green = 100Mbps
Solid = Link
Blink = Activity
Right (Yellow)
Solid = Disabled
Blink = Wrong speed
1 2 3 4 5 6 7 8 9 10 11 12
10Base-T 100Base-TX Power
Intel Express 210T
Stackable Hub
Collision Managed Status
Class I
Left (Green)
Solid = Link
Blink = Activity
Right (Yellow)
Solid = Disabled
Blink = Wrong speed
Change Hub Speed
1 2 3 4 5 6 7 8 9 10 11 12
10Base-T 100Base-TX Power
Intel Express
10/100 Stackable Hub
Collision Managed Status
Class I
Left (Green)
Solid = Link
Blink = Activity
Right (Amber)
Solid = Disabled
Blink = Wrong speed
Change Hub Speed
24 23 22 19 21 20 16 17 18 10 11 12 15 14 13 8 7 6 5 4 9 1 2 3
Connect the Cacade
Cables to the hubs as
shown in the diagram.