Description
The Fujitsu FC9580SF21 is a switch fabric circuit module used in Fujitsu Flashwave 4500 (also marketed as FLASH 2400 ADX) optical transport and SONET/SDH systems. It provides switching fabric functionality for STS (Synchronous Transport Signal) connections, allowing multiple optical and electrical tributary signals to be switched and groomed within the transport chassis. Modules like this are core parts of the transport plane in multi‑service optical platforms.
Key Features
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Manufacturer: Fujitsu
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Part Number: FC9580SF21
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Product Type: Switch fabric module (STS) for optical transport systems
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Application: Flashwave 4500 / FLASH 2400 ADX transport platform
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Function: Provides STS switch fabric switching capacity for aggregated signal routing
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Used In: Carrier‑grade SONET/SDH and optical transport systems
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Condition: Used, refurbished, or legacy inventory
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Lifecycle Status: Legacy telecom hardware (platform no longer current)
Technical Overview
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Function: Provides the internal switch fabric that interconnects various interface cards (such as OC‑3, OC‑12, OC‑48, VT/STS tributaries) in the Flashwave 4500 series, enabling high‑speed signal switching and grooming across tributary and line interfaces.
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Capacity: Often described in inventories as supporting large STS cross‑connect bands (e.g., 1344×1344 STS‑1 switching matrix).
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Integration: Installed on the central switch fabric plane of the chassis, interfacing with the system backplane and power distribution.
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Platform Compatibility: Compatible with systems classified under Fujitsu Flashwave 4500 / FLASH 2400 ADX networks.
