Asus PCI-DA2200 - Manual (Page 205)

ASUS GUI RAID Manager: Installation
2-20 2.3 In-band SCSI
2. The "Setting of SNMP Interface" window appears. Enter the IP
address and community name of the Agent Site. For "Agent-site
Communication Type," choose "SCSI Bus Interface." The
"Controller Index" refers to the sequence of the RAID controller
which is going to be administrated. If only one RAID controller is
installed in the agent site computer, choose "0". If there is more
than one RAID controller installed in the agent site computer,
choose "1" to administrate the second RAID controller. Choose "2"
to administrate the third RAID controller, etc.