ATTO Technology FC-44ES, FC-42XS, FC-41XS, FC-42ES FC-22XH Storage Adapter, On-board hub

Channel 0

Channel 1

FC Controller

FC-22XH Storage Adapter

The Celerity FC-22XH storage adapter has four				while Ports 3 and 4 are connected through the hub
pluggable SFP LC optical connectors and uses a				to the second channel of the FC chip (Channel 1).
short wave laser. A multi-mode cable must be				This arrangement allows you to connect four
used with short wave lasers. For best				JBODs without a hub or switch. Although you
performance, use 50
micron multi-mode	FC-22XH configuration: Each channel of an FC dual-channel chip connects to a hub
optical cables of no
more than 500 meters in	chip,	which connects to two SFP ports.
length.
	SFP port
To maximize
	4
connectivity, each port
on the FC-22XH is				Hub
connected to one of two	SFP port			chip
on-board hubs.	3
On-board hub
Each on-board hub chip	SFP port			Hub
	2
is connected to a
				chip
channel of the dual-
channel Fibre Channel	SFP port
chip. Ports 1 and 2 of the	1
adapter are connected
through the hub chip to
the first channel of the
FC chip (Channel 0)
			Hub chip	FC controller

pluggable SFP LC optical connectors

Hub chip PCI-X connector

17 ATTO Technology Celerity FC Storage Adapters Installation and Operation Manual