I/O+ Boards

Figure G-4, Figure G-5, and Figure G-6 show the locations of the connectors and slots on the I/O+ boards.

Figure G-4 SBus+ I/O Board Connectors

Figure G-5 Graphics+ I/O Board Connectors

Figure G-6 PCI+ I/O Board Connectors

Centerplane Connector

Information for the CPU/Memory+ board centerplane and the I/O+ boards centerplane is the same. See "Centerplane Connector".

SBus Connectors

Two I/O+ boards have SBus connectors:

• The SBus+ I/O board has three SBus connectors, SBus 0, 1, and 2. See Figure G-7.

• The Graphics+ I/O board has two SBus connectors, SBus 0 and 2. See Figure G-8.

Figure G-7 SBus I/O+ Board SBus Connectors

Figure G-8 Graphics+ I/O Board SBus Connectors

UPA Connector Location

The Graphics+ I/O board has one UPA connector.

Figure G-9 Graphics+ I/O Board UPA Connector

Ethernet and MII Connectors

There is one onboard twisted-pair Ethernet (TPE) connector on the SBus+ I/O board (see Figure G-4), the Graphics+ I/O board (see Figure G-5), and the PCI+ I/O board (see Figure G-6).

There is one media-independent interface connector on the SBus+ I/O board (see Figure G-4) and the Graphics+ I/O board (see Figure G-5). The PCI+ I/O board does not have an MII connector.

The onboard Ethernet and MII ports share one set of I/O circuitry, so both ports cannot be used at the same time.

GBIC Connectors

Figure G-10 SBus I/O+ Board GBIC Slots

Figure G-11 Graphics+ I/O Board GBIC Slots

PCI Connectors

Figure G-12 PCI+ I/O Board Slots

SCSI Connector

There is one on-board SCSI connector on the SBus+ I/O board (see Figure G-4), the Graphics+ I/O board (see Figure G-5), and the PCI+ I/O board (see Figure G-6).