Chapter 9
SC-2057
9-4
©
National Instruments Corporation
If the SH96-96 is connected to the VXI-DIO-128 connector labeled
INPUT, the SC-2057 will provide access to ports 0–7. If the SH96-96 cable
is connected to the VXI-DIO-128 connector labeled OUTPUT, the
SC-2057 will provide access to ports 8–15.
Note
The two 50-pin connectors on the SC-2057 do
NOT
supply the two sets of
handshaking lines normally found on a DIO-32F connector. The VXI-DIO-128
board does not have the handshaking circuitry that is available on the DIO-32F
boards. Therefore, these lines are
NOT
provided by the SC-2057. Any accessories
needing these handshaking lines will
NOT
work connected to the VXI-DIO-128 via
the SC-2057.
There are also four voltage supply connectors on the SC-2057: J3, a +24 V
connector, which can 24 V ±10% at 0.5 A; J4, a +12 V connector,
which can 12 V at 0.5 Amps, and J5 and J6, two +5 V connectors,
which can 5 V at 1 Amp.
The total current draw from either or
both of the +5 V connectors must not exceed 1 A
.
Warning
Under no circumstances should you connect these +5 V, +12 V, or +24 V pins
directly to ground or to any other voltage source on the VXI-DIO-128, SC-2057,
or any other device. Doing so can damage the VXI-DIO-128, SC-2057, and your
VXIbus system. National Instruments is
NOT
liable for damage resulting from such
a connection.
Figures 9-2 through 9-5 illustrate the output connections of the signal
conditioning accessories to the VXI-DIO-128 and SC-2057 and the
necessary cables and accessories.
Figure 9-2.
Output Connections with the SCXI-1163/R
For output connections with the SCXI-1163, SCXI boards must be in
parallel mode to operate with the VXI-DIO-128.
VXI-DIO-128
OUTPUT
SC-2057
SH96-96
SCXI-1163 (R)*
SCXI-1163 (R)*
SCXI-1348
J2 Ports 12–15
J1 Ports 8–11
