Intel PCLA2152B User Manual
Intel Express
10/100 Stackable Hub
User Guide
This guide covers the following products:
Intel Express 10/100 Stackable Hub - 12-port TX hub. Product code EE110TX12.
Intel Express 10/100 Stackable Hub - 24-port TX hub. Product code EE110TX24.
Copyright © 1997, Intel Corporation. All rights reserved.
Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro OR 97124-6497
Intel Corporation assumes no responsibility for errors or omissions in this manual. Nor does Intel make any commitment to
update the information contained herein.
* Other product and corporate names may be trademarks of other companies and are used only for explanation and to the
owners’ benefit, without intent to infringe.
First edition April 1997 662204-001
Quick Start
1. Install the Express 10/100 Stackable Hub in a rack or on a shelf or table,
plug it in, and turn the power on.
Rack: Use the four small screws to attach
the brackets to the hub. Use the four large
screws (not shown) to attach the hub to
the rack.
12
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
3
876
11
4
910
5
12
161514
13
17 18
19 24 2322
20
Green (left)
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Shelf: Attach the four rubber feet to the
bottom before placing on a shelf or table.
2. Connect either 100BASE-TX devices or 10BASE-T devices to the ports.
The default hub speed is 100 Mbps. Press
Change Hub Speed to operate at 10 Mbps.
Intel Express
10/100 Stackable Hub
12
3
4
8
6
7
5
910
11
12
16
14
15
13
17 18
All ports operate at the same speed
For this connection Use this cable
Hub to server or workstation Straight-through TPE
Hub to print server Straight-through TPE
Hub to switch Crossover TPE
Hub to hub (10 Mbps only) Crossover TPE
3. Check the LEDs for links. You’re done.
Change hub speed
10
BASE-T
100
BASE-TX
19 24
22
20
21
Power
Collision
Managed
Status
Green (left)
23
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Use Category 5 (CAT 5)
twisted-pair Ethernet
(TPE) cabling for 100
Mbps connections. Use
CAT 3, 4, or 5 TPE for
10 Mbps connections.
Cable distance can’t
exceed 100 meters
whether running at 10 or
100 Mbps.
Do not configure
attached devices for fullduplex. Hubs aren’t
capable of full-duplex.
On solid indicates a valid
link (may take up to 6
seconds). Blinking
indicates activity on the
port.
Green LED
(left side)
Amber LED
(right side)
Should normally be off. Blinking indicates a
speed mismatch. For example, the hub is
operating at 100 Mbps, but a 10 Mbps device
is connected to the port. See pages
10-11 for detailed descriptions.
Next steps (Optional)
Continue to the next page if you want to connect multiple hubs.
1
(Optional) Connecting multiple hubs
Connecting hubs running at 100 Mbps to hubs running at 10 Mbps
Use an Intel Cascade Cable to connect the hubs. Hubs running at 100 Mbps can talk to each other,
and hubs running at 10 Mbps can talk to each other. However, hubs running at 100 Mbps can’t talk
to hubs running at 10 Mbps without bridging equipment. See pages 5-7 for more information.
Optional bridging
equipment
876
3
910
12
4
5
876
3
910
12
4
5
876
3
910
12
4
5
876
3
910
12
4
5
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
Power
10BASE-T
Managed
100BASE-TX
Status
Green (left)
11
12
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
11
12
161514
13
11
12
161514
13
11
12
161514
13
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
19 24 2322
17 18
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
19 24 2322
17 18
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
19 24 2322
17 18
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Hub 1 (100 Mbps)
Power
Hub 2 (100 Mbps)
Power
Hub 3 (10 Mbps)
Power
Hub 4 (10 Mbps)
Category 5 TPE (100m max.)
Category 3, 4, or 5 TPE (100m max.)
Connecting hubs running at 100 Mbps
Use an Intel Cascade Cable to connect the hubs. You can connect a maximum of eight hubs. See
page 4 for more information.
Hub 1
Hub 2
Hubs 1 and 2 are in one collision domain and
share 100 Mbps of bandwidth.
Hubs 3 and 4 are in a separate collision domain
from 1 and 2 and share 10 Mbps of bandwidth.
The optional bridging equipment allows hubs 1
and 2 to talk to hubs 3 and 4.
Connect hubs with an Intel Cascade Cable
(product code EE110CC)
Never connect hubs running at 100 Mbps
with TPE cable. Doing so violates the IEEE
802.3u Fast Ethernet standard for Class I
hubs.
Connect hubs with an Intel Cascade Cable
(product code EE110CC)
Connecting hubs running at 10 Mbps
Use an Intel Cascade Cable to stack the hubs or daisy-chain the hubs with TPE cable. All hubs in a
stack share 10 Mbps of bandwidth and count as one repeater hop. Hubs connected with TPE cable
count as two repeater hops. See page 4 for more information.
Hub 1
Hub 2
2
or
Connect hubs with an Intel Cascade Cable
(product code EE110CC)
3
876
12
11
910
4
12
5
13
Connect hubs with CAT 3, 4, or 5 TPE cable.
Limit distance to 100 meters.
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
161514
Green (left)
19 24 2322
17 18
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
3
876
12
11
910
4
12
5
Intel Express
10/100 Stackable Hub
Change hub speed
10
BASE-T
100
BASE-TX
161514
13
19 24 2322
17 18
20
21
Power
Collision
Managed
Status
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Contents
Overview ..................................................................................................................................................3
Connection Guidelines ............................................................................................................................. 4
Example Configurations .......................................................................................................................... 5
Mixed 10 Mbps and 100 Mbps environment ...................................................................................5
100 Mbps-only environment ............................................................................................................ 7
10 Mbps-only environment .............................................................................................................. 8
Understanding LEDs .............................................................................................................................. 10
Port LEDs........................................................................................................................................ 10
Unit LEDs .......................................................................................................................................11
Cabling Requirements ............................................................................................................................ 12
100BASE-TX requirements ............................................................................................................ 12
10BASE-T requirements ................................................................................................................ 12
100BASE-FX requirements ............................................................................................................ 12
Straight-through vs. crossover cables............................................................................................. 13
Troubleshooting .....................................................................................................................................14
Frequently Asked Questions .................................................................................................................. 15
Warranty ................................................................................................................................................. 17
Intel Automated Customer Support ....................................................................................................... 20
Overview
This guide covers both the 12- and 24-port versions of the Intel Express 10/100 Stackable Hub.
12
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
Power
10BASE-T
Managed
100BASE-TX
3
4
5
Green (left)
876
11
910
12
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Status
12
3
876
11
910
4
5
12
13
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
161514
19 24 2322
17 18
Green (left)
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
• Intel product code: EE110TX12 • Intel product code: EE110TX24
• 12 fixed TPE ports • 24 fixed TPE ports
• Stack eight hubs (mixed 12- or 24-port) • Stack eight hubs (mixed 12- or 24-port)
• Hub management through optional • Hub management requires a 12-port
Management Module (product code EE110MM) 10/100 Stackable Hub in same stack
• Bridging or full-duplex support through optional
Ethernet Module (product code EE110EM)
• 100BASE-FX support through optional
Fiber Module (product code EE110FX)
33
OK
100 Mbps hubs
No!
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
11
8765910
3
1 2
12
4
161514
13
24 2322
19
17 18
20
21
3
11
12
87659 10
4
12
161514
13
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
17 18
100 Mbps hubs
OK
10 Mbps hubs
OK
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
11
8765910
3
1 2
12
4
161514
13
24 2322
19
17 18
20
21
3
11
12
87659 10
4
12
161514
13
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
10 Mbps hubs
NOTE
The acronym TPE (twisted-pair
Ethernet) refers to Category 3,
4, or 5 unshielded twisted-pair
(UTP) cabling or Category 5
shielded twisted-pair (STP)
cabling.
17 18
Connection Guidelines
Connecting 100BASE-TX devices
• Use Category 5 twisted-pair Ethernet (CAT 5 TPE) cable.
• Always limit the distance between devices connected with TPE
cable to 100 meters (the IEEE specification requires this).
• Use a crossover cable to connect the hub to a switch. Use a
straight-through cable to connect the hub to a server or
workstation. See pages 12-13 for more information on cabling.
• Never connect two hubs operating at 100 Mbps with TPE cabling
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
10
BASE-T
Managed
100
BASE-TX
Status
24 2322
19
20
21
Intel Express
10/100 Stackable Hub
Change hub speed
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
24 2322
19
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
(this violates the IEEE 802.3u Fast Ethernet specification for
Power
Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Class I hubs). You must use an Intel Cascade Cable.
• Never connect a device to the hub at full-duplex. Only the
optional Ethernet Module or Fiber Module supports full-duplex.
Connecting 10BASE-T devices
• Use Category 3, 4, or 5 twisted-pair Ethernet (CAT 3, 4, or 5
TPE) cable.
• Use a crossover cable to connect a hub to another hub or a switch.
Use a straight-through cable to connect a hub to a server or
workstation. See pages 12-13 for more information on cabling.
• Follow the 5-4-3-2-1 general rule when daisy-chaining 10 Mbps
hubs. See page 9 for more information.
• Always limit the distance between devices connected with TPE
Power
cable to 100 meters (the IEEE specification requires this).
• Use an Intel Cascade Cable to connect hubs when:
- you want all hubs in the stack to count as a single repeater.
- you want to use a single Management Module to manage all
hubs in the stack.
• Never connect a device to the hub at full-duplex. Only the
optional Ethernet Module or Fiber Module supports full-duplex.
4
NOTE
You must use an Intel Cascade
Cable to connect hubs running
at 100 Mbps. Do not daisychain hubs with TPE crossover
cabling.
Intel Cascade Cable
(product code EE110CC)
NOTE
In a managed stack of hubs,
the optional Management Module can communicate with all
hubs, regardless of speed.
Example Configurations
Mixed 10 Mbps and 100 Mbps environment
A stack of Express 10/100 Stackable Hubs can contain hubs running
at both 10 and 100 Mbps. However, the hubs running at 10 Mbps and
the hubs running at 100 Mbps are on separate network segments.
These two segments can’t communicate with each other unless you
use another device to bridge them.
There are several ways to bridge the 10 Mbps and 100 Mbps
segments:
• Use the optional Intel Express Stackable Hub Ethernet Module
(product code EE110EM).
• Use a switch capable of both 10 Mbps and 100 Mbps operation,
such as the Intel Express 10/100 Fast Ethernet Switch (product
code ES101TX).
• Use a server with two 10/100 adapters installed.
• Use the Intel Express 10/100 Downlink (product code EC100DL).
• Use a router capable of both 10 Mbps and 100 Mbps operation
(not described here).
The Ethernet Module acts
as a switch port plugged
into a hub. It has the added
benefit of connecting to a
switch or server configured
at full-duplex.
This is the only time you can
connect an Express 10/100
Stackable Hub to a device
at full-duplex.
Bridging with the Intel Express Stackable Hub
Ethernet Module (sold separately)
The Ethernet Module plugs into the expansion slot of a 12-port hub
running at either 10 Mbps or 100 Mbps. Simply plug the module into
a hub running at one speed and connect to a hub running at the other
speed, and the Ethernet Module bridges the two collision domains.
Express 10/100
Stackable Hubs
Ethernet Module
Auto-negotiate
Auto-negotiate
Full-duplex
100 Mbps
Half-duplex
10 Mbps
Green (left)
876
11
3
910
12
12
4
5
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
876
11
3
910
12
12
4
5
161514
13
17 18
876
11
3
910
12
12
4
5
161514
13
17 18
876
11
3
910
12
12
4
5
161514
13
17 18
Category 3, 4, or 5 TPE
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10BASE-T
Managed
100BASE-TX
Status
Hub 1 (100 Mbps)
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Green (left)
Hub 2 (100 Mbps)
19 24 2322
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Hub 3 (10 Mbps)
Green (left)
19 24 2322
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
Intel Express
10/100 Stackable Hub
Change hub speed
Power
Collision
10
BASE-T
Managed
100
BASE-TX
Status
Hub 4 (10 Mbps)
Green (left)
19 24 2322
20
21
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
If you plug the Ethernet Module
into a hub running at 100 Mbps,
connect it to a hub running at
10 Mbps with CAT 3, 4, or 5
TPE.
If you plug the Ethernet Module
into a hub running at 10 Mbps,
connect it to a hub running at
100 Mbps with CAT 5 TPE.
5
Loading...