The SBus+ I/O board has three SBus connectors (SBus 0, 1, and 2). The Graphics+
I/O board has two (SBus 0 and 2). See Figure G-11, Figure G-12, and Figure G-13.
Figure G-11 I/O+ Board SBus 0 Connector Locations
Figure G-12 I/O+ Board SBus 1 Connector Location
Figure G-13 I/O+ Board SBus 2 Connector Locations