User’s Guide190Connecting the Controllers to the Terminal InterfacePrimaryControllerSecondaryControllerDual RS-232C cableRS-232C extension cableÅMale DB-9Dual RS-232C cableFemale DB-9Null ModemÇÅ ÅNull ModemÇConnect toRS-232C port ofthe host computer• Connect the D-sub end of AA-9015 (Dual RS-232C cable) to AA-9011 (Null Modem), then connect the other two 2x5 headers tohte COM1 serial port of each controller.• Connect one end of the AA-9012 (RS-232C extension cable) tothe AA-9011 (Null Modem) and the other end to the RS-232C portof your host computer.Connecting the SCSI Cable to the Host Computer• Connect an end of the SCSI cable to the SCSI port of the hostcomputer, then enable the SCSI terminator of the SCSI port.Connect the other end of the SCSI cable with an external SCSIterminator.• Connect one of the SCSI connectors, located at the middle of theSCSI cable, to a controller and another connector to the othercontroller.• Disable the controller’s host channel SCSI termination.