4
Ethernet Module
The Ethernet Module acts as a switch port plugged into an Express
10/100 Stackable Hub. The Ethernet Module
• bridges Express 10/100 Stackable Hubs running at 10 Mbps to
hubs running at 100 Mbps.
• connects Express10/100 Stackable Hubs running at 100 Mbps
to each other with TPE cable (creating separate collisions
domains).
• connects an Express10/100 Stackable Hub to another device at
full-duplex, such as a server or switch.
Bridging 10 and 100 Mbps hubs
To bridge hubs of different speeds, simply plug an Ethernet Module
into an expansion slot on a 12-port hub (see “Quick Start” on page 1),
then connect to a hub running at the other speed. The Ethernet Module
bridges the two collision domains.
100 Mbps hubs connected
to 10 Mbps hubs
Plug the Ethernet Module into
a 100 Mbps hub—connect it to
a 10 Mbps hub with CAT 3, 4,
or 5 TPE.
10 Mbps hubs connected
to 100 Mbps hubs
Plug the Ethernet Module into
a 10 Mbps hub—connect it to
a 100 Mbps hub with CAT 5
TPE.
Ethernet Module
Change
duplex
Auto-negotiate
100 Mbps
10 Mbps
Change
speed
Auto-negotiate
Full-duplex
Half-duplex
Coll
MDI
MDI-X
or
Express 10/100
Stackable Hubs
Hub 1 (100 Mbps)
Hub 2 (100 Mbps)
Hub 3 (10 Mbps)
Hub 4 (10 Mbps)
Category 3,
4, or 5 TPE
123
4
Change hub speed
10BASE-T
100BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Auto-negotiate
100 Mbps
10 Mbps
Auto-negotiate
Full-duplex
Half-duplex
Ethernet Module
Ethernet module
Express 10/100
Stackable Hubs
Hub 1 (10 Mbps)
Hub 2 (10 Mbps)
Hub 3 (100 Mbps)
Hub 4 (100 Mbps)
Category 5 TPE only
123
4
Change hub speed
10BASE-T
100BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
123
4
Change hub speed
10
BASE-T
100
BASE-TX
Power
Intel Express
10/100 Stackable Hub
Collision
Managed
Status
8
7
6
5
91011
12
16
15
14
13
17 18 19 24 23
22
21
20
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Auto-negotiate
100 Mbps
10 Mbps
Auto-negotiate
Full-duplex
Half-duplex
Ethernet Module
Ethernet module
