SMC Networks TigerSwitch 10 SMC6724L3, Руководство по установке

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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. When a switch is connected to a hub or any kind of shared media,
remember to turn off back pressure to prevent jamming packets from
being propagated throughout the hub.
3. For network applications that require routing between dissimilar
network types, you can attach the Fast Ethernet Routing Switch units
directly to a multi-protocol router. However, if you have to
interconnect distinct VLANs or IP subnets, you can take advantage of
the wire-speed Layer 3 routing provided by this switch.
4. The multimode fiber modules are fitted with SC connectors, but you
can attach an ST plug to the switch using an SC-to-ST plug converter.
If you do use an ST plug converter, be sure you run cable from the Rx
(Tx) port on the module to the Tx (Rx) port on the target device.
5. As a general rule:
• the length of Gigabit fiber optic cable for a single switched link should
not exceed 550 m (1805 ft) for 1000BASE-SX multimode fiber or 5 km
(16404 ft) for 1000BASE-LX single-mode fiber.
• the length of 100BASE-FX fiber optic cable for a single switched link
should not exceed 2 km (1.24 miles) for multimode fiber or 20 km
(2.43 miles) for single-mode fiber.
However, power budget constraints must also be considered when
calculating the maximum cable length for your specific environment.