National Instruments MXI-2 Reference Manual page 74

© National Instruments Corporation
sole timer of any MXIbus access. Because bus timeout units on other
VMEbus modules cannot monitor this signal, they should be permanently
disabled. If you cannot disable a module's bus timeout unit, configure it to
the highest setting to give MXIbus accesses as much time as possible.
You can choose from three user-defined pins on J2/P2. The pin you select
must be bused on the VMEbus backplane between all slots that will have a
VME-MXI-2 installed. Use jumper W2 to select pin A5, C5, or C30 of
J2/P2, as shown in Figure 7-6.
The fourth position on the jumper is the factory-default setting, which does
not connect the VME-MXI-2 to any user-defined pin. Use this option only
if you are installing a single VME-MXI-2 in a chassis.
Figure 7-6 shows the four intermodule signaling settings.
W2
A5
C5
C30
NC
a. User-Defined Pin A5 Selected
W2
A5
C5
C30
NC
c. User-Defined Pin C30 Selected
Figure 7-6. VME-MXI-2 Intermodule Signaling Settings
Chapter 7 VME-MXI-2 Configuration and Installation
b. User-Defined Pin C5 Selected
d. No User-Defined Pin Selected (Default)
7-9 MXI-2 Configuration Reference Manual
W2
A5
C5
C30
NC
W2
A5
C5
C30
NC