Glossary
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National Instruments Corporation
G-7
VXI/VMEpc 600 Series User Manual
R
Resource Manager
a message-based Commander located at Logical Address 0, which provides
configuration management services such as address map configuration,
Commander and Servant mappings, and self-test and diagnostic
management
RMS
Root mean squared. See g
RMS
.
S
s
seconds
SCSI
Small Computer System Interface (bus)
slave
a functional part of a VME/VXIbus device that detects data transfer cycles
initiated by a VMEbus master and responds to the transfers when the
address specifies one of the device’s registers
SMB
Sub Miniature Type B connector that features a snap coupling for fast
connection
SYSFAIL
A VMEbus signal that is used by a device to indicate an internal failure.
A failed device asserts this line. In VXI, a device that fails also clears
its PASSed bit in its Status register.
System Controller
a device configured for installation in Slot 0 of a VXIbus mainframe or
Slot 1 of a VMEbus chassis. This device is unique in the VXI/VMEbus
system in that it performs the VXI/VMEbus System Controller functions,
including clock sourcing and arbitration for data transfers across the
backplane. Installing such a device into any other slot can damage the
device, the VXI/VMEbus backplane, or both.
T
trigger
either TTL or ECL lines used for intermodule communication
TTL
Transistor-Transistor Logic