232 SPARCstation 20 Service Manual • July 1996
SCSI Small computer system interface.
SEC SBus-to-external bus interface. An ASIC ASIC that provides the interface
between the SBus and the external bus.
SIA Serial Interface Adapter.
SMC Scalable memory controller.
SunDiag System
Exerciser Diagnostic software that operates under SunOS system software; displays
real-time use of system resources and peripheral equipment.
SunVTS Sun verification test suite. Diagnostic software that operates under SunOS
software.
system monitor See Monitor 1) or 2).
terminal A device that consists of a video display and keyboard. Used to type and
display information. A terminal may be connected to either of the
RS-423/RS-232 serial interface ports on the backpanel of the SPARCstation 20
system.
TOD Time of day.
TPE Twisted-pair Ethernet.
UART Universal asynchronous receiver/transmitter.
VBC Video buffer chip.
VSIMM Video single in-line memory module. A printed circuit board containing static
random access memory (SRAM) chips. A primary system VSIMM uses the
backpanel 13W3 graphics connector. Availability of a secondary system
VSIMM through conjoint operation with optional AVB.
wrist strap A device that provides grounding for static electricity between your body and
the system unit chassis. Electric current and voltage do not pass through the
wrist strap.
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