Adaptec MAN-FC2002-001 Manuel D’Utilisation

RAID Controller Circuit Boards

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Cache DIMM memory

The I/O circuit board provides the interface between the 

enclosure and a host, as well as general support functions. 

The I/O circuit board provides the following:

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Connections to the host

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Connections to the enclosure

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Dual switching power supply for +3.3 V and +2.5 V

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Hot pluggability for the controller

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Support for the BBU

The I/O circuit board has two SFF optical transceivers 

supporting shortwave multimode fibre on the host side and a 

90-pin controlled impedance (50 Ohm) connector on the 

device side. An HSSDC connector with repeaters on the 

expansion loop provides for a copper connection between 

one of the device channels and an expansion module. Port 

bypass circuitry on the I/O circuit board enables quadplex 

operation on a second host loop. The I/O board has seven 

LEDs to indicate subsystem status.

The ethernet circuit board provides a 10BASE-T/100BASE-

TX LAN connection for out of band service for the RAID 

controller. Features of the ethernet circuit board include:

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PCI ethernet controller chip

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Enhanced scatter-gather bus mastering

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Operation in either full duplex or half-duplex mode

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Auto-negotiation for speed, duplex, and flow control

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RJ45 ethernet connector with integral activity and link status 
LEDs

The PCI ethernet controller is a fully integrated 10BASE-T/

100BASE-TX controller consisting of both the media access 

controller (MAC) and physical layer (PHY) in one package.