Official LTB-8 mainframe reference with example OSA and Power Blazer modules. Installed modules and the pictured 400G configuration are illustrative and are not evidence of the offered configuration.
Official 8166A/B family mainframe drawing for 8166A. The empty-slot illustration does not establish installed modules or actual used-unit configuration.
Official 8163A/B family reference for 8163A; the drawing depicts the later 8163B mainframe. Modules and actual used-unit configuration must be confirmed.