Avasarala,
Thank you for contacting National Instruments.
If you would like to connect to your your DAQ board directly when using SCXI, you will need the SCXI-1180 feed through panel and the SCXI-1302 terminal block. The SCXI-1180 connects to the 50-pin connector on the side of the SCXI-1349 adapter which connects your DAQ board to SCXI chassis.
Here are links to the products:
http://sine.ni.com/apps/we/nioc.vp?cid=1645〈=US
http://sine.ni.com/apps/we/nioc.vp?cid=1690〈=US
Regards,
Bill B.
Applications Engineer
National Instruments