National Instruments NI PCIe-8361 User Manual

retry

An acknowledge by a destination that signifies that the cycle did not 
complete and should be repeated.

RMS

Root mean squared. See also 

.

s

seconds

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.

Slot 0 device

A device configured for installation in Slot 0 of a VXIbus mainframe. This 
device is unique in the VXIbus 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 VXIbus backplane, or both.

SMB

Sub Miniature Type B connector that features a snap coupling for fast 
connection.

statically configured 
device

A device whose logical address cannot be set through software; that is, it is 
not dynamically configurable.

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.

trigger

Either TTL or ECL lines used for intermodule communication.

TTL

Transistor-Transistor Logic

USB

Universal Serial Bus—a serial bus for connecting computers to keyboards, 
printers, and other peripheral devices.