User`s manual

Using Other Power Supplies
You can use any of the other power supply voltages from a standard
VXIbus backplane as described in the VXIbus Specification. All of the
available voltages have been stubbed onto the breadboard module as user
access points. Just remember that you must provide your own fusing and
filtering on board the module for each power supply you access from the
backplane.
You must also provide adequate cooling for dissipation of the heat
generated by the power requirements of your customs circuitry. See
page 22 for more information on establishing cooling specifications for
your module. Recommended power supply voltage applications are listed in
Table 3-5.
Table 3-5. Power Supply Voltage Applications
Supply Application
+5 VDC Main power source for all systems. Used for supplying
power to logic devices.
+12 VDC General purpose power for switching power convertors,
analog devices, and disc drives.
–12 VDC General purpose power for analog devices and disc
drives. Not recommended for power convertors.
+24 VDC General purpose power for high-level output drivers. Used
to derive voltages for precision analog devices (such as
+15 VDC).
–24 VDC General purpose power for high-level output drivers. Used
to derive voltages for precision analog devices (such as
-15 VDC).
–5.2 VDC Power for ECL devices.
–2 VDC Power for ECL termination loads.
+5 VDC - stdby Power to sustain memory, clocks, etc. when +5 VDC is
lost. User may supply this power if necessary.
60 Using the Agilent E1490C Chapter 3