Bit of a blast from the past - using the Serial "IOIOI" port is the only option for initial setup of this model (system setup only works on some later models, and only when they are factory fresh..)
The SAS configuration picture would work, but is not optimal. You've got controller "A" connected to IOM "A" of the shelf, and controller "B" connected to IOM "B" of the shelf - for optimal Multipath HA (MPHA) you should ALSO have IOM A's "circle" port connected to SAS port 2d of controller "B", and IOM B's "circle" port connected to SAS port 2d of controller "A", this will also need two more SAS cables - so if you don't have them, don't worry about it. For ACP shelf management, you should also run an ethernet cable from A/3a, to IOM A square, then from IOM A circle to IOM B square, then from IOM B circle to B/3a
Ok! as I said, the extra two SAS cables are optional, so if it is a great expense, don't worry about it.
The ACP is used for monitoring and some automated management (ACP = Alternate Control Path), but there is no way to login to the shelves manually.
First configuration must be over serial "IOIOI" - 9600, 8N1 - once ONTAP is running, you can run "sp setup" to set an Out of Band IP address and login to the service processor IP, or then use System Manager to connect via GUI. For more details, please let me know what version and mode (7 or cluster) of ONTAP you are running