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Hardware
PXI/ PCI 61xx – User Manual
3-9
Electric surges can harm expensive test equipment and lead to
unreliable test results. Electric isolation protects against electric surges
and can help to suppress dangerous electrical transients. It also
eliminates ground loops, responsible for data errors due to ground
potential differences.
The
PXI/ PCI 61xx
controller board provides electric isolation between
the PXI system and all the IO signals available at the front connector.
This includes the CAN, LIN/ K-Line and FlexRay communication
interfaces as well as digital and analog IOs.
The system requires a ground reference between the GNDiso potential
on the front connector and the ground potential of the device under
test (ECU, etc.). Jumper J140 provides a means of introducing a
ground reference between the GNDiso potential on the front
connector and the ground potential of the PXI system.
Caution: Introducing a ground reference to the PXI system may
could result in high current flow over the test lead and the
PXI/ PCI 61xx
controller
board.
This could lead to malfunction, wrong test results as well as damage
the controller board or other test equipment.
Before closing jumper J140, you must ensure that the device under
test and all other devices connected to the front connector
of the
controller board are only supplied via an isolated power supply!
The LEDs arranged at the front panel indicate the current operation
state of a
PXI/ PCI 61xx
board:
The table below describes the meaning of the LED states:
LED 1
LED 2
LED 3
LED 4 Remarks
Permanently ON
Controller does not run (error!)
Alternately blinking
Bootloader software runs
blinking
Firmware runs
ON
(shortly)
State during execution of a
Firmware command
ON
Ethernet connection established
3.3.3
Isolation
3.3.4
Status
LEDs
Figure 3-5:
Status LEDs
Содержание PCI 61 Series
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