Three types of connections between/among DAQ Boards and the external hardware they interface with are required:
- Clock Synchronization is required when anytime 2 (or more) boards are used . See Clock Synchronization for detailsby ScanImage.
- Terminal Block Connections are required to connect trigger input terminals and digital trigger lines to BNC connectors
- BNC Connections are required between the boards themselves and between them and the external hardware
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*Typical Wiring Scenario 1*
{center}{link-window:ScanImage Pics^BreakoutBoxWiringDiagram2.png|height=500|menubar=false|location=false|statusbar=false|resizable=false|icon=false|tip=Click To Enlarge}!ScanImage Pics^BreakoutBoxWiringDiagram2.png|height=300!{link-window}{center}
This scenario applies where the second board ('Dev 2') is a multifunction DAQ board from either the M or E series (e.g. [PCI-6251|http://sine.ni.com/nips/cds/view/p/lang/en/nid/14124], [PCI-6259|http://sine.ni.com/nips/cds/view/p/lang/en/nid/14128], or the [PCI-6040E|http://sine.ni.com/nips/cds/view/p/lang/en/nid/10795])
{center}{link-window:ScanImage Pics^BreakoutBoxWiringDiagram2.png|height=500|menubar=false|location=false|statusbar=false|resizable=false|icon=false|tip=Click To Enlarge}!ScanImage Pics^BreakoutBoxWiringDiagram2.png|height=300!{link-window}{center}
* \[Cyan\] *USER 1* on the first board ('Dev 1') is connected to *PFI 0* on both boards. Thus all boards (and their subsystems) receive their primary trigger input signal from the same trigger signal (generated by ScanImage on *P0.0* of 'Dev 1').
* \[Green\] *USER 2* is connected on both boards to the external trigger source (if desired). Thus all boards (and their subsystems) can respond to the same external trigger signal.
* 'Dev 2' is used for both the PMT outputs and the photodiode inputs
(/) If 3 'beams' (Pockels Cells) are used, the [NI 6259|http://sine.ni.com/nips/cds/view/p/lang/en/nid/14128] has 2 additional AO channels which can be connected via an additional (third) breakout box, without requiring an additional board. (The NI 6259 has 2 connectors, allowing connection to 2 breakout boxes). The connections to *PFI0* and *USER 2* (PFI 1) would not be required on the additional breakout box.
*Typical Wiring Scenario 2*
{center}{link-window:ScanImage Pics^BreakoutBoxWiringDiagram3.png|height=500|menubar=false|location=false|statusbar=false|resizable=false|icon=false|tip=Click To Enlarge}!ScanImage Pics^BreakoutBoxWiringDiagram3.png|height=300!{link-window}{center}
This scenario applies where the second board ('Dev 2') is an Analog Output (AO) board (e.g. [PCI-6711|http://sine.ni.com/nips/cds/view/p/lang/en/nid/10700] or [PCI-6713|http://sine.ni.com/nips/cds/view/p/lang/en/nid/10700] )
{center}{link-window:ScanImage Pics^BreakoutBoxWiringDiagram3.png|height=500|menubar=false|location=false|statusbar=false|resizable=false|icon=false|tip=Click To Enlarge}!ScanImage Pics^BreakoutBoxWiringDiagram3.png|height=300!{link-window}{center}
* Connections are the same as in Scenario 1, except that the photodiode inputs are connected to 'Dev 1'
(/) This scenario applies when the number of PMT inputs and calibrated 'beams' (i.e. photodiode inputs) totals less than 4 -- which is the number of AI inputs available on the [S Series|http://sine.ni.com/nips/cds/view/p/lang/en/nid/10955] boards used for 'Dev 1'
(i) If 3 'beams' are required, a third Pockels Cell output can be connected at the *AI7* connector. However, there are typically not enough AI channels on 'Dev 1' to account for the number of PMT and photodiode inputs. Then, either the use of a third board, or Scenario 1 (with the [NI 6259|http://sine.ni.com/nips/cds/view/p/lang/en/nid/14128]) is recommended.
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