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Intel 220T Manual De Usuario

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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.