User`s manual

16 Chassis Overview
2.3 Backplane overview
2.3.1 Interoperability with CompactPCI
PXIS-2719 is designed to be used with both PXI-compatible prod-
ucts and standard CompactPCI products. Its backplanes is compli-
ant with PXI Specification Rev. 2.2.
The signals on the P1 connector of the backplane meet the
requirements of the CompactPCI specification for both the periph-
eral and system modules.
The PXI-specific signals are located on P2. Only the signals that
are reserved or not used in the CompactPCI 64-bit specification
are found on PXI-specific signals. Therefore, peripheral modules
that meet the requirements of the CompactPCI 64-bit specification
will function in the PXIS-2719.
Note: Do NOT install CompactPCI peripheral modules which
operate with rear I/O modules in PXIS-2719 due to the
possible conflict between rear I/O signals and PXI-specif-
ic signals on J2.
2.3.2 System Controller Slot
The System Controller slot is Slot 1 of the chassis as defined by
the PXI specification. The PXIS-2719 chassis can accommodate a
PXI system controller that occupies up to 3 slots width. As defined
in the PXI specification, two controller expansion slots allow the
controller to expand to the left to prevent the controller from using
up peripheral slots.
2.3.3 Star Trigger Slot
The Star Trigger (ST) slot is Slot 2. This slot has dedicated trigger
lines between ST slot itself and slots 3-15. The star trigger func-
tionality is intended to provide a precise trigger signal to the
peripheral modules by installing a specific star trigger controller
module in the ST slot. The star trigger slot can be also used as a
general peripheral slot if you do not need the star trigger function-
ality.