ADLINK PXIS-2690P - Manual (Page 16)

8 Chassis Overview
Backplane functions
Figure 2-8: Backplane Functions
System Controller Slot
The PXIS-2690P system controller slot is at Slot 1 as defined by
PXI specifications. It has three controller expansion slots (total
four), which are used for system controller modules that are wider
than one slot. As defined in the PXI specification, these slots allow
the controller to expand towards the left to prevent the controller
from using up peripheral slots.
Star Trigger Slot
Slot 2 is reserved for the star trigger. This slot has dedicated trig-
ger lines to slots 3 to 14. The start trigger slot provides individual
triggers to peripherals and is designed for modules with ST func-
tionalities.
PXI Trigger Bus Segment and PCI Bus Segment
PXI Star Triggers
Clock 10 MHz Buffer Circuitry
System Co
ntroll
er
1
Star Trig
ger Co
ntroller
2
Peri
p
heral sl
ot
3
Peri
p
heral sl
ot
4
Peri
p
heral sl
ot
5
Peri
p
heral sl
ot
6
Local Bus Local Bus Local Bus Local Bus
Peri
p
heral sl
ot
…
Peri
p
heral sl
ot
14
Local Bus Local Bus