National Instruments NI VXIpc-882 - Manual (Page 30)

Chapter 3 Configuration and Default Settings
© National Instruments Corporation 3-9 NI VXIpc-882 User Manual
• The front panel TRIG/CLK PORT A(B). CLK10 can be routed into the
NI VXIpc-882 from another NI VXIpc-882 through the TRIG/CLK
PORT A(B) on the front panel. Onboard jumpers are used to set this
configuration.
Front Panel SMB Direction Control
W2—SMB CLK10 Direction
This jumper allows you to configure the front panel SMB connector on the
NI VXIpc-882 controller.
The default jumper position, shown in Figure 3-5a, IN, shuts off CLK10 to
the front panel SMB connector. Use jumpers W4 and W3 to configure the
front panel SMB as an input for CLK10. In non-Slot 0 operation the SMB
cannot be configured as an input as only the Slot 0 controller is allowed to
supply CLK10 to the VXI backplane.
Setting the W2 jumper to OUT, as shown in Figure 3-5b, routes the VXIbus
CLK10 to the front panel SMB connector. In non-Slot 0 operation this
jumper will also route the VXIbus CLK10 out of the front panel SMB
connector.
Figure 3-5. Setting the Front Panel CLK10 SMB Direction with Jumper W2
Selecting the CLK10 Source
W3—External CLK10 Source Select
When W4—CLK10 Source Select is set to select an external CLK10
source, W3 is used to select between two external CLK10 sources.
• The default setting, shown in Figure 3-6a, SMB, selects the front panel
SMB connector as the external CLK10 source. There is no need to set
the direction of the SMB with jumper W2 as the controller will set the
SMB as an input for you.
a. IN (default) b. OUT
Set this jumper to OUT to route
CLK10 out of the front panel
SMB connector.
Setting this jumper to IN turns off
the SMB. Use jumpers W3 and W4
to configure the SMB as an input
when in Slot 0 operation.
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2
3
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W2 W2