Sun Microsystems Netra T4 AC100, Service And System Reference Manual

Page: 179 / 284

Chapter 10 Functional Description 10-25
10.2.8.3 System Configuration Card Reader
The SCCR is attached to the I2C bus. This is a system identity device, comprising a
card reader and a programmed system configuration card. The card has two
functions:
■
It contains the system identity parameters for the server—information such as the
Ethernet MAC address, HostID and other configuration parameters
■
It replaces the NVRAM for the storage of configuration variables and other non
volatile data.
If a system configuration card is not present in the SCCR, the OBP initialization
sequence will abort and a fatal error message is displayed. If the card is removed
while Solaris is running, LOMlite2 detects its absence and initiates an orderly
shutdown after 60 s.
10.2.9 Other Peripheral Assembly Options
The system supports other peripheral assembly options that can be installed in the
system. These options can include the DVD-ROM drive and DAT drive.
10.2.10 USB Ports
Four USB ports enable you to connect USB peripherals.