ADLINK PXIS-2690P - Manual (Page 17)

Chassis Overview 9
Peripheral Slots
Thirteen slots are available for installation of peripheral modules.
This includes the star trigger controller slot.
Local Bus
The cBX-3014L local bus is a daisy-chained bus that connects
each peripheral slot with its adjacent (left and right) slot. A local
bus is 13 lines wide, transmits analog or digital signals between
modules, and/or provides a high-speed sideband communication
path without affecting the PXI bus bandwidth.
Per PXI specifications, the local bus connects all slots except slots
1 (system slot) and 2.
Trigger Bus
The PXIS-2690P incorporates a PXI trigger bus to synchronize the
operation of several and different PXI peripheral modules, or to
use one module to control the timed sequences of operations per-
formed on other modules. Modules can exchange triggers via the
trigger bus, allowing precise timed responses to asynchronous
external events that the system monitors or controls.