Meilhaus Electronic ME-90 Series, Электронное руководство, Страница: 8 / 120

 All unused inputs should be connected to the ground reference
of the appropriate functional section. This avoids cross talk
between the input lines.
 The opto-isolated inputs and outputs achieve an electrical
isolation of the application relative to PC ground.

Note that the computer must be powered up prior to
connecting signals by the external wiring of the board.

As a basic principle, all connections to the board should only be
made or removed in a powered-down state of all components.

Ensure that no static discharge occurs while handling the
board or while connecting/disconnecting the external cable.

Ensure that the connection cable is properly connected. It
must be seated firmly on the D-Sub connector and must be
tightened with both screws, otherwise proper operation of the
board cannot be guaranteed.
1.1.2 Improper Application
PC plug-in boards for the PCI-, PCI-Express- or CompactPCI-bus
may not be taken into operation outside of the PC. PC/104-Plus
boards may not be taken into operation outside of an embedded
system. Never connect the devices with voltage-carrying parts,
especially not with mains voltage. As power supply of the USB
models only an authorized power adapter may be used.
Make sure, that no contact with voltage-carrying parts can happen
by the external wiring of the device. As a basic principle, all
connections should only be made or removed in a powered-down
state.
1.1.3 Unforeseeable Misapplications
The device is not suitable to be used as a children’s toy, in the
household or under unfavourable environmental conditions (e.g. in
the open). Appropriate precautions to avoid any unforeseeable
misapplication must be taken by the user.