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Fibre Channel for Mass Storage by Ralph H. Thornburgh

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5.6. Fibre Channel Arbitrated Loop Hub

Figure 5-8. A3724A/A4839A FC-AL Hub

The FC-AL hub is available in shortwave and long-wave models. Both models are available in stand-alone or factory-racked configurations. The AZ models are the factory-racked models.

5.6.1. Features

  • The shortwave hub has ten non-OFC shortwave optical transceivers.

  • The long-wave hub has nine non-OFC, shortwave optical transceivers and one non-OFC, long-wave optical transceiver.

  • Local retime and regeneration of transmit signals to prevent accumulation of jitter and improve the signal.

  • Reliable, automatic bypass of failed nodes; dynamic recognition of newly added or removed ...

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