Acer HDS AMS200 Reference Manual page 83

4.3.4.2 When the FC Interface Board is Added
One host connector configures one port.
Exclusive access to Logical Unit
LU mapping can be processed for each port. Therefore, set the accessible logical unit for
each port using the LU mapping function.
Transfer rate of host
The transfer rate for the AMS200 is set for each port. The host connector (side A and
side B) can be connected respectively to hosts with different transfer rates.
Acer | HDS AMS200 User and Reference Guide 63