Accessing Blade Server

Hi guys

I have a c7000 chassis with gen 9 half height blades installed. OA is setup and each blade can be accessed by iLO.

My question is what options do I have if my network connections to the OA fails?

Can I access the blades via some kind of console connection so I can log into the operating system on the blade if need be?

I don't have any kvm technology installed

Thanks.