Connection Guidelines - Intel NetportExpress 10 PCLA2152B User Manual

OK
100 Mbps hubs
No!
Intel Express
10/100 Stackable Hub
Change hub speed
10 BASE-T Collision Power
100 BASE-TX Managed
Status
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Green (left) 1 2 3 4 5 6 7
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
100 Mbps hubs
OK
10 Mbps hubs
OK
Intel Express
10/100 Stackable Hub
Change hub speed
10 BASE-T Collision Power
100 BASE-TX Managed
Status
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Green (left) Link = solid 1 2 3 4 5 6 7
Activity = blink
Amber (right)
Disabled = solid Wrong speed = blink
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.
4

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
(this violates the IEEE 802.3u Fast Ethernet specification for
Intel Express
10/100 Stackable Hub
Change hub speed
10 BASE-T Collision Power
100 BASE-TX Managed
Status
Class I hubs). You must use an Intel Cascade Cable.
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Green (left)
Link = solid
Activity = blink
Amber (right)
Wrong speed = blink
Disabled = solid
• 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
Intel Express
10/100 Stackable Hub
Change hub speed
10 BASE-T Collision Power
100 BASE-TX Managed
Status
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Green (left)
Activity = blink Link = solid
Amber (right)
Wrong speed = blink Disabled = solid
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.