Appendix B: Special Configuration Options
VX1410 IntelliFrame Instruction Manual
B–5
Remote Power Supply Installation
If you ordered your mainframe with Option 1D (Delete Power Supply) you can
power the mainframe from a remote power source. You need to assemble a cable or
a circuit board to connect through the rear of the mainframe to the backplane.
NOTE
. When the VX1410 IntelliFrame is configured with Option 1D, all
product specifications no longer apply. To be VXI compliant, the power
supply that provides power to the chassis must adhere to the specifications of
the VXI standard and provide appropriate control signals (ACFail*, SysRe-
set*, and On/Stndby) in a manner that is compatible with the VXI standard
and the circuitry that interfaces with the signals within the mainframe.
After building and installing the connector, make sure that you block the air path
through the vacant power supply and that you reconnect the fans and the fan
housing before applying power to the mainframe. You can use the bracket
available with Option 1D to block the air flow. If necessary, design the power
supply cables so that they can be routed through the AC power connector on the
Fan Assembly.
CAUTION.
To prevent damage to the mainframe, do not operate the mainframe
with the fans disconnected. The mainframe will overheat if there is inadequate
airflow.
To maintain safe operation when the mainframe is configured for Option 1D, the
power supply that provides the power to the chassis should not exceed the DC
Current Capacity (I
MP
) listed in Table 4–2 on page 4–2. The short circuit
capacity of each voltage should not exceed 120% of the I
MP
rating. The total
power dissipation of the chassis, with modules installed, should not ex-
ceed 925 W.
The mating connector for the backplane is a DIN41612 Style M connector with
ten high-current female contacts and six signal pins. The contacts can be either
solder cups, wire-crimp, or ECB solder tails. Figure B–4 shows the backplane
connector.
WARNING.
To avoid shock hazards when the mainframe is configured with
Option 1D, connect the chassis to earth ground through one of the grounding
screws located on the left rear of the mainframe (see Figure 1–11 on page 1–21
for the location of the grounding screws.)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
