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GS160/320 System Overview 2-27
A PCI master box has a standard I/O module and a DVD/CD-ROM drive as
shown in Figure 2–19. PCI expansion boxes provide additional slots for options.
Each PCI power supply has three LEDs: Vaux OK, Power OK, and Swap OK.
BA54A-AA PCI Box
The BA54A-AA PCI box is a PCI master box. It contains the following
components:
• Backplane with a standard I/O module
• Thirteen I/O option slots
• DVD/CD-ROM drive
• SCSI disk drive
• Ports: one local terminal port, one serial port, one modem port, one parallel
port, two USB ports, one keyboard port, one mouse port, one CSB port, and
one control panel port
• Two I/O riser slots
• Two power supplies
BA54A-BA PCI Box
The BA54A-BA box is a PCI expansion box and contains the following
components:
• Backplane with fourteen option slots
• Two I/O riser slots
• Two power supplies