National Instruments 370551A-01 用户手册
Chapter 3
VXI-MXI-2 Configuration and Installation
© National Instruments Corporation
3-9
Figure 3-5. VXIbus CLK10 Routing
The VXI-MXI-2 can also be configured to drive the external CLK SMB
signal from the VXIbus CLK10 signal. Switch S3 controls whether the
VXI-MXI-2 drives or receives the external CLK SMB signal. If you change
the S3 setting to drive CLK10 out the external CLK10 SMB connector, do
not set the W3 jumper to receive the SMB CLK10 signal; instead use the
settings shown in either Figure 3-5a or Figure 3-5c as appropriate.
signal from the VXIbus CLK10 signal. Switch S3 controls whether the
VXI-MXI-2 drives or receives the external CLK SMB signal. If you change
the S3 setting to drive CLK10 out the external CLK10 SMB connector, do
not set the W3 jumper to receive the SMB CLK10 signal; instead use the
settings shown in either Figure 3-5a or Figure 3-5c as appropriate.
a. CLK10 Generated from Onboard Oscillator (Default)
b. CLK10 Generated from SMB
c. CLK10 Generated from MXIbus
W3
From Onboard Oscillator
From SMB (S3 must be set to “IN”)
From MXIbus
W3
S7
From Onboard Oscillator
From SMB (S3 must be set to “IN”)
From MXIbus
Receive CLK10 from MXIbus
W3
From Onboard Oscillator
From SMB (S3 must be set to “IN”)
SMB CLK10 Direction
From MXIbus
In
S3 Out