Chapter 9
SC-2057
©
National Instruments Corporation
9-3
If the SC-2057 is connected to the VXI-DIO-128 connector labeled INPUT,
the accessories connected to the SC-2057 will need to supply only digital
inputs. If the SC-2057 is connected to the VXI-DIO-128 connector labeled
OUTPUT, the accessories connected to the SC-2057 will need to accept a
digital input from the VXI-DIO-128 board.
Use a type NB1 cable to connect the SC-2057 and your signal conditioning
accessories. When using SCXI modules with the SC-2057, you will need
to use the SCXI-1348 cable adapter in addition to the type NB1 cable. See
the
SCXI-1348 Cable Adapter Installation
section for specific information
on using the SCXI-1348 cable adapter.
Connect one end of the type NB1 or SCXI-1348 cable to one of the 50-pin
connectors on the SC-2057; the other end will be connected to the signal
conditioning accessory. Make this connection with the VXI-DIO-128 and
the signal conditioning accessories powered off, see Figures 9-2
through 9-8.
Warning
Do not connect the SC-2057 to a board for which it is not designed. Such
connection can damage the SC-2057 and any or all boards/accessories connected
to the SC-2057 and VXI-DIO-128. National instruments is
NOT
liable for any
damages resulting from incorrect connections.
Connectors
The SC-2057 has two 96 pin connectors, P1 and P2, that you can use to
connect the VXI-DIO-128 to the SC-2057. Only one connector is needed
to connect the SC-2057 to the VXI-DIO-128; the other connector is a
feedthrough of the signals from the VXI-DIO-128. You can use this
feedthrough connector to access data lines not being used by the
accessories connected to the SC-2057.
The SC-2057 has two 50-pin ribbon cable connectors that you can use to
connect with signal conditioning accessories. The first 50-pin connector,
J1, provides ports 0–3 or 8–11 from the VXI-DIO-128, depending on which
96-pin connector on the VXI-DIO-128 is connected to the SC-2057. The
second 50-pin connector, J2, provides ports 4–7 or 12–15 from the
VXI-DIO-128, depending on which 96-pin connector on the VXI-DIO-128
is connected to the SC-2057.
J1 and J2 are set up with a DIO-32F pin connector, which allows the
VXI-DIO-128 to be connected to the same signal conditioning accessories
available to the DIO-32F boards, provided that no handshaking is needed
between the VXI-DIO-128 and the accessory.
