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Chapter 6
VXI-MXI-2/B Configuration and Installation
VXIbus CLK10 Routing
MXI-2 Configuration Reference Manual
When you install the VXI-MXI-2/B in Slot 0 of your chassis, it supplies the
VXIbus CLK10 signal. The VXI-MXI-2/B can use three different sources
to generate this signal: the onboard oscillator, the external CLK SMB
connector, and the MXIbus CLK10 signal. Use the three-position jumper
W1 to select these options, as shown in Figure 6-4.
Notice that Figures 6-4b and 6-4c also show switches S7 and S1,
respectively. You must configure these switches as shown when using the
corresponding CLK10 source setting of W1.
a. CLK10 Generated from Onboard Oscillator (Default)
(
= OUT)
Figure 6-4. VXIbus CLK10 Routing
You can also configure the VXI-MXI-2/B to drive the external CLK SMB
signal from the VXIbus CLK10 signal. Switch S7 controls whether the
VXI-MXI-2/B drives or receives the external CLK SMB signal. If you
change the S7 setting to drive CLK10 out the external CLK10 SMB
connector, do not set the W1 jumper to receive the SMB CLK10 signal.
Instead, use the settings shown in either Figure 6-4a or Figure 6-4c as
appropriate.
ON BRD
SMB
MXI
ON BRD
b. CLK10 Generated from SMB
ON BRD
c. CLK10 Generated from MXIbus
6-6
W1
W1
SMB
MXI
W1
SMB
MXI
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