Intel PCLA2152B manual Extending the 10 Mbps network topology, Attaching hubs to a switch

Extending the 10 Mbps network topology

To extend the 10BASE-T network topology, you can attach hubs to a switch or daisy-chain the hubs using TPE cabling.

If you attach a stack of hubs to a switch, each stack gets its own 10 Mbps of bandwidth.

Attaching hubs to a switch

The illustration below shows two stacks of Express 10/100 Stackable Hubs operating at 10 Mbps attached to Intel Express 10/100 Switch ports also operating at 10 Mbps. Each TPE cable is extended to 100 meters, from workstation to hub and hub to switch. The total network topology is extended to 400 meters.

Express 10/100

Fast Ethernet Switch

10Mbps shared among all hubs in stack

Intel Express 10/100

Fast Ethernet Switch

10 Mbps shared among all hubs in stack

Category 3, 4, or 5 TPE (100m max.)

Follow the 5-4-3-2-1 general rule when daisy- chaining 10 Mbps hubs

Five hubs (or hub stacks) are allowed.

Four segments.

Three hub stacks can have nodes attached.

Two hub stacks can’t be populated and are extensions only.

All of this makes one colli- sion domain with a maxi- mum of 576 stations (if you’re using 24-port Express 10/100 Hubs).

Daisy-chaining hubs (10 Mbps only)

Hubs can be connected using an Intel Cascade Cable, or “daisy chained” together using TPE cabling when operating at 10 Mbps. Hub-to-hub TPE connections should not exceed 100 meters, and no more than five hubs can be connected (a stack of hubs counts as one hub). Of those fives hubs or stacks of hubs, only three can have devices attached.

Intel Express		Intel Express
10/100 Stackable Hub		10/100 Stackable Hub
Intel Express		Intel Express
10/100 Stackable Hub		10/100 Stackable Hub
	Intel Express
	10/100 Stackable Hub
Intel Express	Intel Express	Intel Express
10/100 Stackable Hub	10/100 Stackable Hub	10/100 Stackable Hub

Node Segment

Category 3, 4, or 5 TPE (100m max.)

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