AcroPack Series APCe7010E-LF
PCI Express Carrier Board
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Carrier Fuses
CAUTION: Acromag has used pins labeled as reserved in the Mini-PCIe specification for additional power
connections. If you are installing a Mini-PCIe card from another manufacturer remove fuses F1, F2 and F3.
Other fuse present on the board i1.5V fuse F6. Also present on the
board is +3.3V fuse F4. These fuses are not user replaceable. Return the
carrier board to Acromag to replace these fuses. Both Mini-PCIe cards from
other manufacturers and the AcroPack modules can use +1.5V and +3.3V
power.
Fuse not present on the board 3.3V Aux Fuses F5. Some standard
Mini PCIe cards may r3.3V Aux to power the module. For a site using
such a module the +3.3V fuse will need to be remove and the +3.3 Aux fuse
will need to be installed. Return the carrier board to Acromag to remove and
install these fuses.
Isolation Considerations
WARNING:
This AcroPack carrier is designed to provide isolation between the
AcroPack Field I/O signals and the host. The AcroPack module must also be
an isolated AcroPack module to maintain the isolation between the logic and
field I/O signals. Unless isolation is provided on the AcroPack module itself,
the field I/O connections are not isolated from the PCIe bus.
Isolated Power
The use of an optional isolated DC/DC Converter is required for use with a few
of Acromag’s isolated AcroPack modules. See Figure 1 for carrier board
location allocated for the isolated DC/DC converter.
The power supplies of one AcroPack site must be isolated from the power
supplies of other AcroPack sites. The separate isolated DC/DC converter
make this possible. The DC/DC converted should only be populated on the
carrier for AcroPacks needing the isolated power. Each isolated AcroPack
module will list the requirement of the external DC/DC converter if needed.
The isolated DC/DC converter provide dual +12V and -12V power to the
AcroPack module on field I/O pins 49 and 50 as listed in the Table below.
Table 1 Carrier Isolated Power
Supply Voltage
Current (Min)
Field I/O Pin
+12V
+/- 8% (max)
0.16 A
50
1
-12V
+/- 8% (max)
0.16 A
49
1
Return (GND)
1 A
48
1
