SMC Networks VDSL2 Uživatelský manuál stáhnout pdf (Strana 37)

PPLICATION

OTES

2-5

Application Notes

1. Full-duplex operation only applies to point-to-point access (such as

when a switch is attached to a workstation, server or another switch).

When the switch is connected to a hub, both devices must operate in

half-duplex mode.

2. To interconnect distinct VLANs or IP subnets, you can attach the

switch to a standard Layer 3 router. For network applications that

require routing between dissimilar network types, you can attach the

switch directly to a router.

3. As a general rule the length of fiber optic cable for a single switched

link should not exceed:

• 1000BASE-SX: 550 m (1805 ft) for multimode fiber.

• 1000BASE-LX: 5 km (3.2 miles) for single-mode fiber.

• 1000BASE-ZX: 70 km (43 miles) for single-mode fiber.

However, power budget constraints must also be considered when

calculating the maximum cable length for your specific environment.

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SMC Networks VDSL2 Uživatelský manuál Strana 37