375.1 Notes on Connection of Disk Array UnitConfirm the following items before attempting to connect the disk array unit:(1) Connection cableUse the provided or NEC-specified power cord to connect the disk array unit withthe power supply.To connect the host bus adapter of the host system or the FC-AL switch with thearray controller, be sure to use the NEC-specified FC cable.To connect the array controller with the disk enclosure, be sure to use the DE cableprovided with the disk array unit or additional disk enclosure, or the NEC-specifiedDE cable (NF9120-SJ04E).(2) Cable length limitFC optical cable for operating the host interface at 1Gbps: Up to [500 m]FC optical cable for operating the host interface at 2Gbps: Up to [300 m](3) Settings of topology and data transfer rateA topology and data transfer rate must be set correctly in accordance with the hostbus adapter to be connected or the connection mode of the FC-AL switch.You can change the topology and data transfer rate of the FC connector for the hostbus adapter by operating the DIP switch (SW2) on the controller.For details, see Section 9.7 "How to Change Topology and Data Transfer Rate".Factory-set topology and data transfer rate:Topology: FC-ALData transfer rate: 2Gbps
